Re: [OSGeo-Discuss] [GRASS-user] [GRASS-dev] New stable release: GRASS GIS 7.0.0

[G. Allegri]

Congratulations! I've compiled my first GRASS when 5.0 was going to be
released... what a long way has been done meanwhile!

giovanni
Il 22/feb/2015 23:41 "Paulo van Breugel"  ha
scritto:

> Congratulations to all developers!!
>
> On Sun, Feb 22, 2015 at 10:51 PM, Markus Neteler 
> wrote:
>
>> Press release
>>
>> The GRASS GIS Development team has announced the release of the new
>> major version GRASS GIS 7.0.0. This version provides many new
>> functionalities including spatio-temporal database support, image
>> segmentation, estimation of evapotranspiration and emissivity from
>> satellite imagery, automatic line vertex densification during
>> reprojection, more LIDAR support and a strongly improved graphical
>> user interface experience. GRASS GIS 7.0.0 also offers significantly
>> improved performance for many raster and vector modules: "Many
>> processes that would take hours now take less than a minute, even on
>> my small laptop!" explains Markus Neteler, the coordinator of the
>> development team composed of academics and GIS professionals from
>> around the world. The software is available for Linux, MS-Windows, Mac
>> OSX and other operating systems.
>>
>> Detailed announcement and software download:
>>
>> http://grass.osgeo.org/news/42/15/GRASS-GIS-7-0-0/
>>
>>
>> About GRASS GIS
>>
>> The Geographic Resources Analysis Support System
>> (http://grass.osgeo.org/), commonly referred to as GRASS GIS, is an
>> Open Source Geographic Information System providing powerful raster,
>> vector and geospatial processing capabilities in a single integrated
>> software suite. GRASS GIS includes tools for spatial modeling,
>> visualization of raster and vector data, management and analysis of
>> geospatial data, and the processing of satellite and aerial imagery.
>> It also provides the capability to produce sophisticated presentation
>> graphics and hardcopy maps. GRASS GIS has been translated into about
>> twenty languages and supports a huge array of data formats. It can be
>> used either as a stand-alone application or as backend for other
>> software packages such as QGIS and R geostatistics. It is distributed
>> freely under the terms of the GNU General Public License (GPL). GRASS
>> GIS is a founding member of the Open Source Geospatial Foundation
>> (OSGeo).
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Re: [OSGeo-Discuss] OSGeo ISODATA implementation?

[G. Allegri]

Hi Nikos,
I'm sorry but it's a long time since I used it, and I received it alredy
compiled by a collegue of mine.

giovanni

2013/2/24 Nikos Alexandris 

> (Again, correcting typos -- when rushing only mistakes come across!)
>
> > G. Allegri wrote:
> > > I imagine you're aware of this page:
> > > http://www.cs.umd.edu/~mount/Projects/ISODATA/
>
> Thanks.  Yes I do -- but I can't compile it.  The code is C++ and a) I am
> not a C++ expert, and b) I don't have the time currently to study it.
>
> Some quick attempts failed.  It requires tweaking since Ubuntu-Linux
> complains first about
>
> "Point.cc:49:22: fatal error: iostream.h: No such file or directory" [1]
>
>
> then about
>
> "Point.cc:90:13: error: ‘exit’ was not declared in this scope" [2]
>
>
> Is it really easy to get it compiled under (Ubuntu-)Linux?
> Thanks, Nikos
>
> --
> [1] <
> http://stackoverflow.com/questions/13103108/why-cant-g-find-iostream-h>
> [2] <
> http://stackoverflow.com/questions/3956636/c-on-linux-not-recognizing-
> commands-like-exit-and-printf>
>



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website: http://giovanniallegri.it
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Re: [OSGeo-Discuss] OSGeo ISODATA implementation?

[G. Allegri]

I imagine you're aware of this page:

http://www.cs.umd.edu/~mount/Projects/ISODATA/

giovanni
Sent from Nexus
Il giorno 23/feb/2013 21:00,  ha scritto:

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Today's Topics:

   1. OSGeo ISODATA implementation? (Nikos Alexandris)
   2. Re: OSGeo ISODATA implementation? (Angelos Tzotsos)
   3. Re: OSGeo ISODATA implementation? (Nikos Alexandris)
   4. OSGeo ISODATA implementation? (Nick Ves)


--

Message: 1
Date: Sat, 23 Feb 2013 17:54:29 +0200
From: Nikos Alexandris 
To: OSGeo Discussions 
Subject: [OSGeo-Discuss] OSGeo ISODATA implementation?
Message-ID: <1563385.3Z55nznVM0@vertikal>
Content-Type: text/plain; charset="us-ascii"

Hi list!

I am searching for an OSGeo implementation (at the very least simply FOSS
will
do) of the ISODATA clustering algorithm [*].  I want to avoid using a
commercial tool.  Currently I have reviewed the following "options":


GRASS-GIS

GRASS has a modified k-means implementation in its   module [1].
However, it requires at least two raster maps to run.  The ISODATA algorithm
is known to run even on a single raster map.


OpenEV

The "old" (but very good) OpenEV (is convenient since it reads directly
grass
raster maps and) has an integrated ISODATA-based classification tool [2].
While testing with single Landsat bands ranging  [0,255] and and NDVI image
[-0.1,1.0], it get stuck somehow after some iterations complaining bout
"ZeroDivisionError: float division".  Don't know if there any restrictions
concerning the input data format.


OrfeoToolBox

OrfeoToolBox has also a clustering algorithm [3] but I am unsure that it is
an
implementation of the ISODATA.  Can't trace a clean documentation about it.
It seems as yet another k-means based algorithm.


Fast ISODATA implementation (by David Mount)

(Not tested yet!)


Any other candidates?
Warmest regards, Nikos

--
[*] ISODATA:

a) 
b)
<
http://en.wikipedia.org/wiki/Multispectral_pattern_recognition#ISODATA_method
>

[1] 

[2] 

[  Sometimes it fails giving following message:
--%<---
Traceback (most recent call last):
  File
"/geo/osgeo/binaries/FWTools-2.0.6/lib/python2.2/site-packages/gtk.py",
line 125, in __call__
ret = apply(self.func, a)
  File "./../tools/isodata.py", line 529, in classify_cb
d /= d_tresh
ZeroDivisionError: float division
--->%--  ]

[3] Mean-shift clustering:  and
 <
http://gracilis.carleton.ca/CUOSGwiki/index.php/Image_Classification_Tutorial_using_Orfeo_Toolbox#Clustering
>

[4] 
-- next part --
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>

--

Message: 2
Date: Sat, 23 Feb 2013 19:23:32 +0200
From: Angelos Tzotsos 
To: discuss@lists.osgeo.org
Subject: Re: [OSGeo-Discuss] OSGeo ISODATA implementation?
Message-ID: <5128fb14.4070...@gmail.com>
Content-Type: text/plain; charset="iso-8859-1"; Format="flowed"

Hi Nikos,

This is a GPL3 implementation of ISODATA:

http://users.ntua.gr/chiossif/Free_As_Freedom_Software/isodata.c

Angelos

On 02/23/2013 05:54 PM, Nikos Alexandris wrote:
> Hi list!
>
> I am searching for an OSGeo implementation (at the very least simply FOSS
will
> do) of the ISODATA clustering algorithm [*].  I want to avoid using a
> commercial tool.  Currently I have reviewed the following "options":
>
>
> GRASS-GIS
>
> GRASS has a modified k-means implementation in its   module
[1].
> However, it requires at least two raster maps to run.  The ISODATA
algorithm
> is known to run even on a single raster map.
>
>
> OpenEV
>
> The "old" (but very good) OpenEV (is convenient since it reads directly
grass
> raster maps and) has an integrated ISODATA-based classification tool [2].
> While testing with single Landsat bands ranging  [0,255] and and NDVI
image
> [-0.1,1.0], it get stuck somehow after some iterations complaining bout
> "ZeroDivisionError: float division".  Don't know if there any restrictions
> concerning the input data format.
>
>
> OrfeoToolBox
>
> OrfeoToolBox has also a clustering algorithm [3] but I a

Re: [OSGeo-Discuss] how to produce a Peirce quincuncial map?

[G. Allegri]

Thanks Alex.
I will investigate more. It's an odd projection but it has interesting
features. Maybe I will try to implement it in proj4...

giovanni

Sent from Nexus
Il giorno 13/ago/2012 18:46, "Alex Mandel"  ha
scritto:

> On 08/13/2012 05:29 AM, G. Allegri wrote:
> > As far as I know PROJ4 cannot apply the Peirce quincuncial projection.
> > Does anybody know what libraries/softwares can manage it?
> >
> > giovanni
> >
> >
> >
>
> I've seen it done in GIMP with a plugin, not exactly manageable data but
> the right output. Other than that there was one proprietary tool I saw
> once that specialized in oddball projections.
>
> Enjoy,
> Alex
>
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[OSGeo-Discuss] how to produce a Peirce quincuncial map?

[G. Allegri]

As far as I know PROJ4 cannot apply the Peirce quincuncial projection.
Does anybody know what libraries/softwares can manage it?

giovanni
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Re: [OSGeo-Discuss] MapIgniter Project

[G. Allegri]

Marco answered offlist.
We have talked about the usefulnes of having a public SCM and a ticketing
system. He's almost convinced :D

Let's see if this project will attract a team to work on it. Good luck!
giovanni

2012/7/30 G. Allegri 

> I've forgot to ask an important thing: are you going to make a public SCM
> repository? It would very important to include the community in testing,
> giving feedback and, eventually, future development of the project.
>
> giovanni
>
>
> 2012/7/30 G. Allegri 
>
> Hi Marco,
>> thanks for sharing your project. I was waiting for the announce :)
>> I'm going to download it right now and give it a look.
>> Having work with Kohana I'm glad to see a project with CI.
>>
>> I will give you my feedback as soon as I setup a demo project. I'm going
>> out for holidays this week, so I don't think I will test it before half
>> august.
>> cheers,
>> giovanni
>>
>
>
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Re: [OSGeo-Discuss] MapIgniter Project

[G. Allegri]

I've forgot to ask an important thing: are you going to make a public SCM
repository? It would very important to include the community in testing,
giving feedback and, eventually, future development of the project.

giovanni


2012/7/30 G. Allegri 

> Hi Marco,
> thanks for sharing your project. I was waiting for the announce :)
> I'm going to download it right now and give it a look.
> Having work with Kohana I'm glad to see a project with CI.
>
> I will give you my feedback as soon as I setup a demo project. I'm going
> out for holidays this week, so I don't think I will test it before half
> august.
> cheers,
> giovanni
>
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Re: [OSGeo-Discuss] MapIgniter Project

[G. Allegri]

Hi Marco,
thanks for sharing your project. I was waiting for the announce :)
I'm going to download it right now and give it a look.
Having work with Kohana I'm glad to see a project with CI.

I will give you my feedback as soon as I setup a demo project. I'm going
out for holidays this week, so I don't think I will test it before half
august.
cheers,
giovanni
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[OSGeo-Discuss] Elsevier call on "Theme Issue on Towards Intelligent Geoprocessing on the Web"

[G. Allegri]

To all the WPS experts out there ;)

http://www.journals.elsevier.com/isprs-journal-of-photogrammetry-and-remote-sensing/call-for-papers/theme-issue-on-towards-intelligent-geoprocessing-on-the-web/

giovanni
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Re: [OSGeo-Discuss] Opensource toolbox for ArcGIS?

[G. Allegri]

Maybe Sextante for ArcGIS (http://www.sextantegis.com/downloads.html)?
It's written in Java and uses the ArcGIS Java SDK.

giovanni

2012/1/10 Connors, Bernie (SNB) 

> I recall reading recently about a Toolbox for ArcGIS that implemented some
> Opensource tools (OGR? GDAL? FWTools?).  Does anybody know what this is
> called.  I have tried googling but have not found it yet.
>
> --
>
> *Bernie Connors, P.Eng*
>
> *Manager – Spatial Data Infrastructure*
>
> Land Information Secretariat
>
> Service New Brunswick
>
> Tel: 506-444-2077 Fax: 506-453-3898
>
> 45°56'25.21"N, 66°38'53.65"W
>
> bernie.conn...@snb.ca
>
> www.snb.ca/geonb/
>
> ** **
>
> ** **
>
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Re: AW: [OSGeo-Discuss] OSM2NetworkDataset Version 1.1 available

[G. Allegri]

Thanks for your work Ann.
I feel it's an important contribution to the interoperability of open and
proprietary technologies and data flows.
I'm already downloading your thesis ;)

giovanni

2011/11/8 Ann Hitchcock 

> No Problem!
>
> ** **
>
> Best regards,
>
> Ann
>
> ** **
>
> *Von:* discuss-boun...@lists.osgeo.org [mailto:
> discuss-boun...@lists.osgeo.org] *Im Auftrag von *Paolo Cavallini
> *Gesendet:* Montag, 7. November 2011 12:12
> *An:* OSGeo Discussions
> *Betreff:* Re: AW: [OSGeo-Discuss] OSM2NetworkDataset Version 1.1
> available
>
> ** **
>
> Il 07/11/2011 12:05, Ann Hitchcock ha scritto: 
>
> Hi Paolo,
>
>  
>
> Sorry, just wanted to inform not step on any toes!
>
> ** **
>
> sorry if I was rude - that's not what I meant
> all the best.
>
> 
>
> -- 
>
> Paolo Cavallini
>
> See: http://www.faunalia.it/pc
>
>
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Re: [OSGeo-Discuss] Opensource library for change detection software development-reg

[G. Allegri]

I don't know if Orfeo Toolbox [1] can offer you the algorithms you need, but
it has lot of analysis tools for change detection.

giovanni

[1] orfeo-toolbox.org

2011/10/13 Chaitanya kumar CH 

> Vinod,
>
> GRASS GIS is a good starting point for your search.
>
> On Thu, Oct 13, 2011 at 1:22 PM, vinod sharma wrote:
>
>> Dear All
>>
>> Could some one please help me to know about libraries/API's available in
>> open source to develop a software for change detection analysis of microwave
>> data along with the development environment.
>>
>> --
>> With Regards
>> Veenu
>>
>>
>> ___
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>>
>>
>
>
> --
> Best regards,
> Chaitanya kumar CH.
>
> +91-9494447584
> 17.2416N 80.1426E
>
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Re: [OSGeo-Discuss] State of the Bounty?

[G. Allegri]

It's a rather difficult task to manage a bounty system. In my experience lot
of requests are directly submitted to potential developers, but I suppose it
would be a great system... if it would work.

For the second point I answer the same as Sandro :)

giovanni

2011/10/11 Sandro Santilli 

> On Mon, Oct 10, 2011 at 10:07:08PM -0700, Tyler Mitchell wrote:
>
> > 2) If you are a service provider or developer on GFOSS/OSGeo platforms,
> would you be interested in being connected to potentially paying customers
> (hmm, hope you answer yes so far) that have particular requests to the base.
>
> I wonder why would anyone answer no on this.
> Anyway, I am interested :)
>
> --strk;
>
>  ()   Free GIS & Flash consultant/developer
>  /\   http://strk.keybit.net/services.html
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Re: [OSGeo-Discuss] Any projects dealing with spatial joins?

[G. Allegri]

Thanks Jodi for the news about Getools's Join support work in progress. The
WFS 2.0 also specifies (optionally) temporal joins [1]. AFAIK Geotools
already implements the Temporal Filters as specififed in FES 2.0, so I
suppose the pieces are already there to further improve the proposal
including temporal joins...

giovanni

[1] Par. 7.9.2.5.3.1 in OpenGIS Web Feature Service 2.0 Interface Standard

2011/6/30 Paolo Cavallini 

> Il 30/06/2011 00:30, Bruce, Bob (CON) ha scritto:
> > Steve,
> >
> > I’m pretty sure that the QGIS project could use your talents
> as a C++
> > developer. They have been talking about table joins for awhile now.
>
> Table joins are implemented in QGIS now, in an efficient way.
> All the best.
>
> --
> Paolo Cavallini: http://www.faunalia.it/pc
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Re: [OSGeo-Discuss] Advice - alternative to google maps v3 Javascript API????

[G. Allegri]

The only benefit I see from using google APIs is the use of they're
Goeocoding and Directions API But keep in mind the limits of use for free...
If you don't need them, go with other solutions, as Just said.

giovanni


2011/6/28 Just van den Broecke 

> Hi Mark,
>
> My advice is to not use Google Maps for this type of app. For one thing
> real-time tracking has restrictions within the GM TOU, even if you embed
> Google Maps into OpenLayers. Also, there are other restrictions for
> commercial use (if that is what you plan to do). Best is to carefully read
> the TOU:
> http://www.google.com/help/**terms_maps.html
>
> OpenLayers is a very good option to use as a mapping library. In addition
> you may check out more extensive mapping/web frameworks that build on
> OpenLayers like GeoExt (http://geoext.org).
>
> As for maps: you may check on OpenStreetMap (www.openstreetmap.org) that
> can be easily used in OL. Also Bing maps (from MS) can be used in
> OpenLayers. Maybe the MS Bing TOU is less restrictive but you better check
> this out.
>
> best,
>
> --Just
>
> Just van den Broecke
> The Netherlands
> www.justobjects.nl
>
>
>
>
> On 28-06-11 11:05, quade wrote:
>
>> Hi all
>>
>> I'm trying to develop a vehicle tracking system
>> I'd planned to use the google maps api
>>
>> However, someone mentioned they want lots of money per year to use it, and
>> suggested openlayers instead
>>
>> I'm really confused about the whole thing
>> Can i use openlayers (or anything else) and use the title maps from google
>> maps and still get around the licence issue?
>>
>> I'm a .net developer, but have no experience in maps so have a steep
>> learning curve
>>
>> I would really appreciate some guidance on my options
>> Thanks all
>> Mark
>>
>>
>> --
>> View this message in context: http://osgeo-org.1803224.n2.**
>> nabble.com/Advice-alternative-**to-google-maps-v3-Javascript-**
>> API-tp6524139p6524139.html
>> Sent from the OSGeo Discuss mailing list archive at Nabble.com.
>> __**_
>> Discuss mailing list
>> Discuss@lists.osgeo.org
>> http://lists.osgeo.org/**mailman/listinfo/discuss
>>
>>
>
>
>
>
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Re: [OSGeo-Discuss] Advice - alternative to google maps v3 Javascript API????

[G. Allegri]

Hi Mark,
using the google APIs thorugh their libraries or thorugh OL doesn't change
your licence position.
AFAIK you can use their services with no charge unitl you don't strictly
make money by means their APIs. Instead you're allowed to provide a
commercial service with no fess if you can document that your incomings are
not directly connected with the APIs use (eg consulting, advertizing, etc.).
Anyway be careful that the Google EULA forbids wrapping their services under
different names. OL publish google tiles directly, i.e. it doesn't proxy or
wraps the Google services.
Here are some Google official notes [1] [2].

giovanni

PS: If you need support on OL or webgis client dev in general, me and my
company can give it ;)

[1] http://code.google.com/intl/it-IT/apis/maps/terms.html
[2]
http://googlegeodevelopers.blogspot.com/2011/04/updates-to-google-maps-apigoogle-earth.html


-- 
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email: giovanni.alle...@gmail.com
skype: giovanni_allegri
Linkedin: http://it.linkedin.com/in/giovanniallegri
Cell: (+39) 347-7067379
Viale Catani n. 4, 59100
Prato (PO)
P.IVA 02152740979
Italy
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http://blog.spaziogis.it


2011/6/28 quade 

> Hi all
>
> I'm trying to develop a vehicle tracking system
> I'd planned to use the google maps api
>
> However, someone mentioned they want lots of money per year to use it, and
> suggested openlayers instead
>
> I'm really confused about the whole thing
> Can i use openlayers (or anything else) and use the title maps from google
> maps and still get around the licence issue?
>
> I'm a .net developer, but have no experience in maps so have a steep
> learning curve
>
> I would really appreciate some guidance on my options
> Thanks all
> Mark
>
>
> --
> View this message in context:
> http://osgeo-org.1803224.n2.nabble.com/Advice-alternative-to-google-maps-v3-Javascript-API-tp6524139p6524139.html
> Sent from the OSGeo Discuss mailing list archive at Nabble.com.
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Re: [OSGeo-Discuss] New AcidMaps with Geoserver plugin

[G. Allegri]

Thanks to XoomCode team!
It can be very useful, and it's also a good "tutorial" for Geoserver/C++
integration ;)

giovanni

2011/3/30 Mauricio Miranda 

> Hi there!
>
> We finally released the new version of AcidMaps [1] with a great change, it
> works as a Geoserver plugin.
>
> That means you can use your own configured WMS layers to build Heatmaps,
> Isolines and other interpolated maps ON THE FLY!
>
> The team has been working hard and we made a complete rewrite of the core,
> optimizing the process to make them faster and more accurate.
>
> Behind that, we build the Geoserver plugin to make AcidMaps easier to use
> and more "OGC like".
>
> Caution! The plugin depends on Geoserver 2.1 (Beta release). The previous
> releases are not yet supported.
>
> For who doesn't know about AcidMaps:
>
> * AcidMaps is an open source library that generates interpolated images
> from a set of valued points in real time.
>
> * It's can be used to generate advanced visualizations with point datasets:
> (e.g.: sales, temperature, atmospheric pressure, population, etc...)
>
> You can see a full demo [2] built using Flex/OpenScales where you can play
> with the parameters to see different results.
>
> It is deployed in our own local server and it could get stuck quickly, so
> please be patient...
>
> If you want to give it a try with you own data, take a look to the Quick
> Start instructions [3], it is really simple!
>
> There's a reference doc [4] where you can get more details.
>
> Please, let us know your opinion because it's still in beta and your
> experience will be very helpful.
>
> [1] http://acidmaps.org
> [2] http://acidmaps.org/flex/index.html
> [3] https://github.com/XoomCode/AcidMaps/
> [4] https://github.com/XoomCode/AcidMaps/wiki
>
> --
> Mauricio Miranda
> Chief Development Officer
> http://www.xoomcode.com
>
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Re: [OSGeo-Discuss] GEOSHIELD RELEASE

[G. Allegri]

Hi Massimiliano,
I've just found the time to have a look to GeoShield. Thanks for it. Just a
question: have you considered the Security components provided by 52 North?
http://52north.org/communities/security/index.html

Giovanni

2010/12/10 Massimiliano Cannata 

>  Dear list,
> it is a pleasure to announce the release of GeoShield (version 0.2.1).
>
> GeoShield is a project born to offer a centralized way to define security
> access-control to geo-services.
> It acts like a proxy, intercepting all the communications between clients
> and OGC compliant services (WMS, WFS, and in future WPS, SOS).
> GeoShield is able to manage users and groups, it handles authentication and
> privileges settings among groups and registered services. It is capable to
> analyse requests applying the filters set to the user and manipulating the
> response.
> It is a server side security software to secure OGC services.
>
> The interested people can find the source code and a web archive package
> (.war) ready for Tomcat:
>
>- http://code.google.com/p/geoshield/downloads/list
>
> While a short installation guide is here (on the project website):
>
>-
>https://sites.google.com/site/geoshieldproject/documentation/installation
>
>
> Because documentation is still very poor, if you have questions or remarks,
> please don't hesitate to contact us, using this discussion group:
> http://groups.google.com/group/geoshield-project
>
> Regards,
> Massimiliano and Milan
>
> --
>
> Dr. Eng. Massimiliano Cannata
> Responsabile Area Geomatica
> Istituto Scienze della Terra
> Scuola Universitaria Professionale della Svizzera Italiana
> Via Trevano, c.p. 72
> CH-6952 Canobbio-Lugano
> Tel: +41 (0)58 666 62 14
> Fax +41 (0)58 666 62 09
>
>
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Re: [OSGeo-Discuss] "Open Source Approaches in Spatial Data Handling" - Springer "Advances in GIS series"

[G. Allegri]

> don't sell many copies because they are expensive. :-( This is
> especially annoying as the authors give them the text for free.

So why should we continue to fill this vicious circle? I hope one day
a more ethical and fair circuit will be set up by the scientific
community
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[OSGeo-Discuss] "Open Source Approaches in Spatial Data Handling" - Springer "Advances in GIS series"

[G. Allegri]

Open Source Approaches in Spatial Data Handling - Springer Advances in
GIS series
http://www.springer.com/series/7712?cm_mmc=other-_-Enews-_-PSE12813_V1-_-7712

giovanni
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Re: [OSGeo-Discuss] open source polygon cluster aggregation algorithm?

[G. Allegri]

I have to work with plsql, the jts have the right algorithm so I've
decided to try it out: wrap the jts inside java stored procedures. It
hasn't been straigthforward but it works. Thanks for the hint Mike.
Fortunatly gt oracle-spatial plugin has some code to map
oracle.sql.STRUCT to JTS geometry, so I've extrapolated the needed
classes only, because it was too much to load the whole gt classes in
Oracle!

giovanni

2010/5/10 Mike Toews :
> The recent JTS has a nice buffering options, namely the mitre buffer.
> It does not have rounded corners, and has been very useful to me
> (i.e., we can physically survey-out the buffer on the ground with
> fewer points to locate and stake out).
> http://lin-ear-th-inking.blogspot.com/2007/12/new-buffer-styles-in-jts-19.html
>
> Although I'm no expert at plsql, it appears it can be extended with
> java, so maybe it could be possible to wrap the Oracle WKT/B(?)
> through JTS:
> http://www.devshed.com/c/a/Oracle/Extending-PLSQL-with-Java-Libraries/
>
> Someone must have done this for plsql in the past ...
>
> -Mike
>
> On 9 May 2010 06:01, G. Allegri  wrote:
>> Hi Stefan. You guessed right, it's buildings generalization. I know
>> jts and geos quite well but unfortunatly I  can't use them because I'm
>> working directly on oracle with plsql. I think buffer is the way, but
>> not the one oracle provides because it rounds the corners...
>>
>> Bye,
>> Giovanni
>>
>> 2010/5/7 Stefan Steiniger :
>>> how about using R it has alpha shapes and a-like?
>>>
>>> What you describe sounds like a problem in map generalization. I.e. the
>>> approach of buffering is something what a colleague of mine once implemented
>>> to generalize house-blocks for maps (aggregate the single buildings).
>>> Unfortunately I don't know of any accessible code for that.
>>>
>>> If you are proficient in Java or C++ you could make you custom
>>> implementation with JTS or Geos (sounds easy to me).
>>>
>>> on what geographic objects are you working on? and how much does the shape
>>> to be need to maintained?
>>>
>>> stefan
>>>
>>> G. Allegri wrote:
>>>>
>>>> 
>>>> A nice implementation of alpha shapes with jts:
>>>> http://www.mail-archive.com/jts-de...@lists.jump-project.org/msg01019.html
>>>> 
>>>>
>>>> 2010/5/6 G. Allegri :
>>>>>
>>>>> Thanks Andrea for the links. Yes, I think the problem is similar, in
>>>>> fact I was also looking for concave hull and alpha shapes algoithms,
>>>>> but the only open solution I've found is from CGAL [1] and... it's too
>>>>> complex to extract and reimplement in my context (database procedural
>>>>> programming).
>>>>>
>>>>> IWe have implemented something very "rude":
>>>>>
>>>>> 1 - logically aggregate polyongs in clusters (given a certain distance)
>>>>> 2 - buffer each polygon mantaining the shape (not the usual buffer,
>>>>> which make rounded artifacts)
>>>>> 3 - geometrical union
>>>>> 4 - shrink the result (unbuffer)
>>>>>
>>>>> But I have the time for a long holiday waiting the end of the process :)
>>>>>
>>>>> [1]
>>>>> http://www.cgal.org/Manual/last/doc_html/cgal_manual/Alpha_shapes_2/Chapter_main.html
>>>>>
>>>>> 2010/5/6 Andrea Aime :
>>>>>>
>>>>>> G. Allegri ha scritto:
>>>>>>>
>>>>>>> I'm looking for an algorithm to do polygon cluster aggregation,
>>>>>>> similar to the ArcInfo "Aggregate Polygon" [1].
>>>>>>> I know about GEOS "Cascaded Union", but I need two more features:
>>>>>>>
>>>>>>> 1 - clustering of polygons that fall within a a certain threshold
>>>>>>> distance from each other
>>>>>>> 2 - mantain orthogonality, i.e. the original angles/shapes
>>>>>>
>>>>>> I don't know of any such implementation, but it looks somewhat
>>>>>> similar to the computation of a concave hull:
>>>>>>
>>>>>> http://ubicomp.algoritmi.uminho.pt/local/concavehull.html
>>>>>>
>>>>>> http://stackoverflow.com/questions/83593/is-there-an-efficient-algorithm-to-generate-a-2d-concave-hull
>>>>>>
>>>>

Re: [OSGeo-Discuss] open source polygon cluster aggregation algorithm?

[G. Allegri]

Hi Stefan. You guessed right, it's buildings generalization. I know
jts and geos quite well but unfortunatly I  can't use them because I'm
working directly on oracle with plsql. I think buffer is the way, but
not the one oracle provides because it rounds the corners...

Bye,
Giovanni

2010/5/7 Stefan Steiniger :
> how about using R it has alpha shapes and a-like?
>
> What you describe sounds like a problem in map generalization. I.e. the
> approach of buffering is something what a colleague of mine once implemented
> to generalize house-blocks for maps (aggregate the single buildings).
> Unfortunately I don't know of any accessible code for that.
>
> If you are proficient in Java or C++ you could make you custom
> implementation with JTS or Geos (sounds easy to me).
>
> on what geographic objects are you working on? and how much does the shape
> to be need to maintained?
>
> stefan
>
> G. Allegri wrote:
>>
>> 
>> A nice implementation of alpha shapes with jts:
>> http://www.mail-archive.com/jts-de...@lists.jump-project.org/msg01019.html
>> 
>>
>> 2010/5/6 G. Allegri :
>>>
>>> Thanks Andrea for the links. Yes, I think the problem is similar, in
>>> fact I was also looking for concave hull and alpha shapes algoithms,
>>> but the only open solution I've found is from CGAL [1] and... it's too
>>> complex to extract and reimplement in my context (database procedural
>>> programming).
>>>
>>> IWe have implemented something very "rude":
>>>
>>> 1 - logically aggregate polyongs in clusters (given a certain distance)
>>> 2 - buffer each polygon mantaining the shape (not the usual buffer,
>>> which make rounded artifacts)
>>> 3 - geometrical union
>>> 4 - shrink the result (unbuffer)
>>>
>>> But I have the time for a long holiday waiting the end of the process :)
>>>
>>> [1]
>>> http://www.cgal.org/Manual/last/doc_html/cgal_manual/Alpha_shapes_2/Chapter_main.html
>>>
>>> 2010/5/6 Andrea Aime :
>>>>
>>>> G. Allegri ha scritto:
>>>>>
>>>>> I'm looking for an algorithm to do polygon cluster aggregation,
>>>>> similar to the ArcInfo "Aggregate Polygon" [1].
>>>>> I know about GEOS "Cascaded Union", but I need two more features:
>>>>>
>>>>> 1 - clustering of polygons that fall within a a certain threshold
>>>>> distance from each other
>>>>> 2 - mantain orthogonality, i.e. the original angles/shapes
>>>>
>>>> I don't know of any such implementation, but it looks somewhat
>>>> similar to the computation of a concave hull:
>>>>
>>>> http://ubicomp.algoritmi.uminho.pt/local/concavehull.html
>>>>
>>>> http://stackoverflow.com/questions/83593/is-there-an-efficient-algorithm-to-generate-a-2d-concave-hull
>>>>
>>>> Cheers
>>>> Andrea
>>>>
>>>> --
>>>> Andrea Aime
>>>> OpenGeo - http://opengeo.org
>>>> Expert service straight from the developers.
>>>> ___
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>>>> Discuss@lists.osgeo.org
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>>>>
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[OSGeo-Discuss] Re: open source polygon cluster aggregation algorithm?

[G. Allegri]

Hi Stefan. You guessed right, it's buildings generalization. I know
jts and geos quite well but unfortunatly I  can't use them because I'm
working directly on oracle with plsql. I think buffer is the way, but
not the one oracle provides because it rounds the corners...

Bye,
Giovanni

2010/5/7, Stefan Steiniger :
> how about using R it has alpha shapes and a-like?
>
> What you describe sounds like a problem in map generalization. I.e. the
> approach of buffering is something what a colleague of mine once
> implemented to generalize house-blocks for maps (aggregate the single
> buildings). Unfortunately I don't know of any accessible code for that.
>
> If you are proficient in Java or C++ you could make you custom
> implementation with JTS or Geos (sounds easy to me).
>
> on what geographic objects are you working on? and how much does the
> shape to be need to maintained?
>
> stefan
>
> G. Allegri wrote:
>> 
>> A nice implementation of alpha shapes with jts:
>> http://www.mail-archive.com/jts-de...@lists.jump-project.org/msg01019.html
>> 
>>
>> 2010/5/6 G. Allegri :
>>> Thanks Andrea for the links. Yes, I think the problem is similar, in
>>> fact I was also looking for concave hull and alpha shapes algoithms,
>>> but the only open solution I've found is from CGAL [1] and... it's too
>>> complex to extract and reimplement in my context (database procedural
>>> programming).
>>>
>>> IWe have implemented something very "rude":
>>>
>>> 1 - logically aggregate polyongs in clusters (given a certain distance)
>>> 2 - buffer each polygon mantaining the shape (not the usual buffer,
>>> which make rounded artifacts)
>>> 3 - geometrical union
>>> 4 - shrink the result (unbuffer)
>>>
>>> But I have the time for a long holiday waiting the end of the process :)
>>>
>>> [1]
>>> http://www.cgal.org/Manual/last/doc_html/cgal_manual/Alpha_shapes_2/Chapter_main.html
>>>
>>> 2010/5/6 Andrea Aime :
>>>> G. Allegri ha scritto:
>>>>> I'm looking for an algorithm to do polygon cluster aggregation,
>>>>> similar to the ArcInfo "Aggregate Polygon" [1].
>>>>> I know about GEOS "Cascaded Union", but I need two more features:
>>>>>
>>>>> 1 - clustering of polygons that fall within a a certain threshold
>>>>> distance from each other
>>>>> 2 - mantain orthogonality, i.e. the original angles/shapes
>>>> I don't know of any such implementation, but it looks somewhat
>>>> similar to the computation of a concave hull:
>>>>
>>>> http://ubicomp.algoritmi.uminho.pt/local/concavehull.html
>>>> http://stackoverflow.com/questions/83593/is-there-an-efficient-algorithm-to-generate-a-2d-concave-hull
>>>>
>>>> Cheers
>>>> Andrea
>>>>
>>>> --
>>>> Andrea Aime
>>>> OpenGeo - http://opengeo.org
>>>> Expert service straight from the developers.
>>>> ___
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>>>> Discuss@lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/discuss
>>>>
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>>
>>
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Re: [OSGeo-Discuss] open source polygon cluster aggregation algorithm?

[G. Allegri]

A nice implementation of alpha shapes with jts:
http://www.mail-archive.com/jts-de...@lists.jump-project.org/msg01019.html


2010/5/6 G. Allegri :
> Thanks Andrea for the links. Yes, I think the problem is similar, in
> fact I was also looking for concave hull and alpha shapes algoithms,
> but the only open solution I've found is from CGAL [1] and... it's too
> complex to extract and reimplement in my context (database procedural
> programming).
>
> IWe have implemented something very "rude":
>
> 1 - logically aggregate polyongs in clusters (given a certain distance)
> 2 - buffer each polygon mantaining the shape (not the usual buffer,
> which make rounded artifacts)
> 3 - geometrical union
> 4 - shrink the result (unbuffer)
>
> But I have the time for a long holiday waiting the end of the process :)
>
> [1] 
> http://www.cgal.org/Manual/last/doc_html/cgal_manual/Alpha_shapes_2/Chapter_main.html
>
> 2010/5/6 Andrea Aime :
>> G. Allegri ha scritto:
>>>
>>> I'm looking for an algorithm to do polygon cluster aggregation,
>>> similar to the ArcInfo "Aggregate Polygon" [1].
>>> I know about GEOS "Cascaded Union", but I need two more features:
>>>
>>> 1 - clustering of polygons that fall within a a certain threshold
>>> distance from each other
>>> 2 - mantain orthogonality, i.e. the original angles/shapes
>>
>> I don't know of any such implementation, but it looks somewhat
>> similar to the computation of a concave hull:
>>
>> http://ubicomp.algoritmi.uminho.pt/local/concavehull.html
>> http://stackoverflow.com/questions/83593/is-there-an-efficient-algorithm-to-generate-a-2d-concave-hull
>>
>> Cheers
>> Andrea
>>
>> --
>> Andrea Aime
>> OpenGeo - http://opengeo.org
>> Expert service straight from the developers.
>> ___
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>> Discuss@lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/discuss
>>
>
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Re: [OSGeo-Discuss] open source polygon cluster aggregation algorithm?

[G. Allegri]

Thanks Andrea for the links. Yes, I think the problem is similar, in
fact I was also looking for concave hull and alpha shapes algoithms,
but the only open solution I've found is from CGAL [1] and... it's too
complex to extract and reimplement in my context (database procedural
programming).

IWe have implemented something very "rude":

1 - logically aggregate polyongs in clusters (given a certain distance)
2 - buffer each polygon mantaining the shape (not the usual buffer,
which make rounded artifacts)
3 - geometrical union
4 - shrink the result (unbuffer)

But I have the time for a long holiday waiting the end of the process :)

[1] 
http://www.cgal.org/Manual/last/doc_html/cgal_manual/Alpha_shapes_2/Chapter_main.html

2010/5/6 Andrea Aime :
> G. Allegri ha scritto:
>>
>> I'm looking for an algorithm to do polygon cluster aggregation,
>> similar to the ArcInfo "Aggregate Polygon" [1].
>> I know about GEOS "Cascaded Union", but I need two more features:
>>
>> 1 - clustering of polygons that fall within a a certain threshold
>> distance from each other
>> 2 - mantain orthogonality, i.e. the original angles/shapes
>
> I don't know of any such implementation, but it looks somewhat
> similar to the computation of a concave hull:
>
> http://ubicomp.algoritmi.uminho.pt/local/concavehull.html
> http://stackoverflow.com/questions/83593/is-there-an-efficient-algorithm-to-generate-a-2d-concave-hull
>
> Cheers
> Andrea
>
> --
> Andrea Aime
> OpenGeo - http://opengeo.org
> Expert service straight from the developers.
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[OSGeo-Discuss] open source polygon cluster aggregation algorithm?

[G. Allegri]

I'm looking for an algorithm to do polygon cluster aggregation,
similar to the ArcInfo "Aggregate Polygon" [1].
I know about GEOS "Cascaded Union", but I need two more features:

1 - clustering of polygons that fall within a a certain threshold
distance from each other
2 - mantain orthogonality, i.e. the original angles/shapes

Both can be achieved with the ArcInfo tool...

thanks a lot,
Giovanni

[1] 
http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=aggregate_polygons_%28data_management%29
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Re: [OSGeo-Discuss] Any thoughts on the potential for using Seadragon as a map browsing interface?

[G. Allegri]

Another tool in the basket: Zoomify.
http://www.zoomify.com/

One of the new features in Oopenlayers 2.9 is the support to its data
structure...

giovanni

2010/4/28 Gavin 

>  Another technology that does amazing things with panoramic photos and is
> just waiting to be applied to maps is http://www.gigapan.org/
>
>
> (Seadragon works fine on my Ubuntu 64)
>
>
> On Wed, 2010-04-28 at 08:26 +0200, Paolo Cavallini wrote:
>
> Andrea Aime ha scritto:
> > Landon Blake ha scritto:
> >> I’m not a web developer, but it seemed like the tech could be used for
> >> browsing high-resolution map images.
> >>
> >>
> >>
> >> http://www.seadragon.com/
> >
> > Does not work at all on my Ubuntu 64 bit. Sigh...
>
> Strange, it does smoothly on my Debian unstable, also 64 bit.
>
>
>
>
>
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Re: [OSGeo-Discuss] What GeoSpatial Open Source Software do Surveyors use?

[G. Allegri]

Some collegues of mine use this LIS DESKTOP [1] fromLaserData.
It's a proprietary/commercial module for SAGA [2]:

[1] http://www.laserdata.at/prod_desk.html
[2] www.saga-gis.org

Giovanni

2010/4/2 Markus Neteler :
> Cameron,
>
> On Thu, Apr 1, 2010 at 10:16 PM, Cameron Shorter
>  wrote:
>> Thank you Marina,
>
> (small correction: Maria)
>
>> That is a good example.
>> To be complete, could you also answer:
>> * What would be the proprietary equivalent software you would use?
>
> I'll leave that to Maria.
>
>> * Why did you decide to use GRASS instead of proprietary software?
>> (Hopefully more than "it was cheaper")
>
> ... note that she actually *author* of the code. She and her team have
> developed it over the last years.
>
>> * It seems you are officiated with a University?
>
> She is professor there.
>
>> Industry is more convinced
>> by case studies that come out of industry, as universities are often
>> associated with "smart geeks, who have a high tollerance to things going
>> wrong because they can fix it themselves". Is there a non-education
>> affilition you can draw upon? Did you do this work for a governement
>> department or similar?
>
> I leave this again to Maria.
>
> Best
> Markus
>
>> maria.brove...@diiar-topo.polimi.it wrote:
>>>
>>> Dear Cameron
>>> if you are interested also in LiDAR data filtering (to obtain from the
>>> LiDAR point cloud the digital terrain model), we developed  commands into
>>> GRASS. They have to be used in sequence.
>>>
>>> http://grass.osgeo.org/gdp/html_grass64/v.lidar.edgedetection.html
>>> http://grass.osgeo.org/gdp/html_grass64/v.lidar.growing.html
>>> http://grass.osgeo.org/gdp/html_grass64/v.lidar.correction.html
>>> http://grass.osgeo.org/gdp/html_grass64/v.surf.bspline.html
>>>
>>> A detailed description is available here:
>>>
>>>
>>> http://www.foss4g2006.org/getFile.py/access?contribId=48&sessionId=59&resId=7&materialId=slides&confId=1
>>>
>>> a more recent and summarised version can be found here:
>>>
>>>
>>> http://geomatica.como.polimi.it/corsi/remote_sensing/LiDAR_filtering_with_GRASS-lab4.pdf
>>>
>>> We worked also on calibration of  the filtering parameters (around 20
>>> parameters) by integrating the USGS UCODE and GRASS. Details are available
>>> here:
>>>
>>> http://www.isprs.org/proceedings/XXXVIII/1_4_7-W5/paper/Brovelli-126.pdf
>>>
>>> I hope it helps.
>>>
>>> Cheers.
>>> Maria
>>>
>>>
>>>
 - "Cameron Shorter"  wrote:

> I'm giving a presentation on GeoSpatial Open Source at the
> international
> Surveyors conference here in Sydney.
> http://www.fig2010.com/
>
> I'd like advice on what use cases and Open Source packages I should
> focus on during the presentation.
> Feedback from Surveyors welcomed.
>
> --
> Cameron Shorter
> Geospatial Solutions Manager
> Tel: +61 (0)2 8570 5050
> Mob: +61 (0)419 142 254
>
> Think Globally, Fix Locally
> Geospatial Solutions enhanced with Open Standards and Open Source
> http://www.lisasoft.com
>
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>>>
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>> Geospatial Solutions Manager
>> Tel: +61 (0)2 8570 5050
>> Mob: +61 (0)419 142 254
>>
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Re: [OSGeo-Discuss] Re: Whitebox GAT (Chris Puttick)

[G. Allegri]

Very nice thread. This topic once a while comes back on our screens.
My two cents.
After various years of talks with OS and purists and not, software farms,
university departments, etc. from back to white visions, passing through
grey, I've pacified with my questions about where is the "truth": it is
where a solution that solves your needs is. All the rest is personal
preference or, worst, hideology.
The need can go from a personal scale to a global one, requiring different
approaches if we're talking about a self-employed practitioner, a local
administration, a multinational farm, or FAO. Forgive me but I think this
discussions are non-sense, because, using the first topic,  the is no
absolute metric to say .NET is worst then Java,C++,or whatelse.
In these days I suggested a customer to use ArcGIS Server for their needs.
The day before I was configuring Postgresql and Geoserver for another one.

Last line. When I discover new softwares being shared I really don't care
very much what technology they used to make, I just wonder if it brings new
ideas, solutions, etc. that can help our needs. Recently I've set up an
algorithm in Python, taking ideas from three different softwares: one was
written in C#, one in C++, and one in Java. They were quite different, but
each one brought complementary ideas that helped me to solve my problem.
This is what I like from software sharing.

giovanni


2010/3/26 Brian Russo 

> On Fri, Mar 26, 2010 at 11:54 AM, Chris Puttick
>  wrote:
> > Terribly off-topic now, so feel free to stop reading...
>
> Yes.. if anyone wants to ping me offline about this feel free..
>
> > ...not realising high or often any business value. Business value is
> where what you expend money and get more in return than you spent.
> Incredibly easy to measure in small businesses with few employees and a
> simple business model, harder the larger the business or the more complex
> the concept of value becomes e.g. in a charity or government organisation.
> There is good evidence that collectively western economies have spent more
> on IT than they have realised in value.
>
> I 100% agree that most IT procurement is terrible. People go after
> 'shiney' technology that solves an immediate perceived requirement but
> do not go through the more expensive (in the short term) work of
> really assessing how their IT infrastructure is actually
> enabling/supporting their business processes.
>
> However this has absolutely nothing whatsoever to do with how the
> software is licensed. You can make similarly horrible decisions using
> open source software… proprietary... whatever. It doesn’t matter.
> Remember all the crappy linux based phones out there? They sucked
> until we got Android ones. Companies would have gotten better value
> using blackberries or something before that time The true reason
> people end up in that situation is because the technology they bought
> isn’t supporting their business properly. It’s like buying a gym
> membership you never use. Does that mean the gym sucks? It might, but
> all it really means is that you're not getting value out of the cost
> you expended. It doesn't tell you why.
>
> > The business case is not simple, any more than it is in marketing; but
> here's my base position in simple terms. I select solutions that maximise
> our future choices and reduce our costs; a further benefit is derived if I
> can move any remaining costs from fixed annual overhead to per employee or
> pure capital; while there may be short term pain as people get used to the
> changes, any increase in costs for that short period will be more than
> offset by the long term decrease in costs and increases in flexibility for
> the organisation.
>
> This is where I disagree with you. If you focus on cost as the thing
> to reduce you will more often than not lose. Lowering cost should be
> an incidental outcome that happens as a result of increasing value and
> efficiency. It's quite possible to end up spending more money on IT
> than you were in the first place (more frequently you end up spending
> it in the right places instead of the wrong and net overall IT
> savings) - but if your overall business value has increased more or
> commensurately then spending more is probably the right outcome.
>
> > Luckily for me I don't have to justify to others other than in my long
> term results. I'm aware that this continues to be a rare privilege for the
> top of the information systems tree and that many organisations continue to
> not have technical expertise at the highest level, resulting in many
> decisions in that area being taken with the wrong information and wrong
> motivations. I'm working on that too.
>
> I would instead argue that the main problem is a lack of
> differentiation between CIOs and CTOs. Most organisations involved in
> IT are still primarily technology-driven in terms of their procurement
> - rather than remembering that their IT is only a means to an end
> (supporting business pro

Re: [OSGeo-Discuss] looking for introductory material on cartography

[G. Allegri]

I've added myself to
http://wiki.osgeo.org/wiki/Education_and_Curriculum_Committee#Membership
Hope to be able to give a help.

giovanni

2009/10/31 Charlie Schweik :
> Giovanni,
>
> G. Allegri wrote:
>>
>> Thnaks Ian. That's a really interesting material, but it's out of our
>> course scope. I need something about basic geodesy, coordinates
>> systems, etc.
>>
>
> Giovanni,
> I'm going to send you something separate that I have but I haven't checked
> the content fully to make sure I can publish it on the OSGeo edu inventory
> page.
>
>> ps: wouldn't it be useful to gather such introductory resources under
>> the Education and Curriculum pages of the OSGeo wiki [1]?
>>
>> [1] http://wiki.osgeo.org/wiki/Education_and_Curriculum_Committee
>>
>
> Yes, it would. This relates to our discussion about developing some OSGeo
> curriculum material. This next week, I'm going to send out a call on the
> OSGeo edu list to see if we can hold one or more online discussions about
> how to move in this direction. I'm also going to try and get some funding to
> hold, sometime in the next year, a face-to-face workshop for some of us to
> meet and work on a curriculum. Anyone interested in joining this please
> subscribe to the OSGeo education and curriculum list.
>
> Cheers
> Charlie Schweik
>
>
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Re: [OSGeo-Discuss] looking for introductory material on cartography

[G. Allegri]

Thanks everyone again for the response my request has had. I didn't
hope in so much sharing :)
It's been important for the ngo itself to recognize the value of this
community and it's "open source mind".

I will share the blog I'm going to setup for the course, in which I
will also gather your materials (with the respective citings) and the
one I will prepare.

I'll let you know.
Have a good week,
Giovanni

2009/10/31 Craig Miller :
> I didn't see what the original link was, but the Geographer's Craft is an
> excellent resource http://www.colorado.edu/geography/gcraft/notes/notes.html
>
> Craig
>
>
>> -Original Message-
>> From: discuss-boun...@lists.osgeo.org
> [mailto:discuss-boun...@lists.osgeo.org]
>> On Behalf Of Ian Turton
>> Sent: Saturday, October 31, 2009 12:49 PM
>> To: OSGeo Discussions
>> Subject: Re: [OSGeo-Discuss] looking for introductory material on
> cartography
>>
>> On Fri, Oct 30, 2009 at 6:52 PM, G. Allegri  wrote:
>> > Thnaks Ian. That's a really interesting material, but it's out of our
>> > course scope. I need something about basic geodesy, coordinates
>> > systems, etc.
>> >
>>
>> ah geography not cartography - try
>> https://www.e-education.psu.edu/natureofgeoinfo/ (browse all the PSU
>> offerings at http://open.ems.psu.edu/courseware)
>>
>> Ian
>> --
>> Ian Turton
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>> Checked by AVG - www.avg.com
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Re: [OSGeo-Discuss] looking for introductory material on cartography

[G. Allegri]

Thnaks Ian. That's a really interesting material, but it's out of our
course scope. I need something about basic geodesy, coordinates
systems, etc.

thank you anyway.
giovanni

ps: wouldn't it be useful to gather such introductory resources under
the Education and Curriculum pages of the OSGeo wiki [1]?

[1] http://wiki.osgeo.org/wiki/Education_and_Curriculum_Committee

2009/10/30 Ian Turton :
> On Fri, Oct 30, 2009 at 5:05 AM, G. Allegri  wrote:
>> I'm going to teach a course (mostly as volunteer time) on GIS basics
>> and GPS surveying for an ONG in Africa. The first two days they will
>> self-teach cartography basics, then I'll begin from GIS, etc. They
>> asked me if I could indicate them some links to free introductory
>> material on cartography (earth shape, coordinates, maps, reference
>> systems, projections, etc.).
>> Does anybody know web resources, or could share copyleft
>> tutorials/manuals/etc on the subject? I've found something googling,
>> from wikipedia to some sparse course chapters, but I would like to
>> find structured, clean and easy, stuff. Am I asking too much?
>>
>
> How  about https://www.e-education.psu.edu/geog486/? It's CC BY NC SA
>
> Ian
> --
> Ian Turton
>
> Sent from State College, Pennsylvania, United States
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Re: [OSGeo-Discuss] looking for introductory material on cartography

[G. Allegri]

Thanks you very much for your replies.
Nimalika, I would really like to have a look at your material. I'm
mostly interested in cartography basics, but a look at the rest would
be helpful too. I will produce ad-hoc presentations on GIS (and Qgis
usage) and GPS, and I could share them after the course.

Jody, thank's for the tip. I will wait for foss4g material.

giovanni

2009/10/30 Jody Garnett :
> You may wish to look at some of the materials coming out of the the FOSS4G
> conference; I think the "making maps pretty" workshop will be up shortly as
> a PDF for example and it has an overview of the cartography/communication
> side of maps.
> Jody
> On 30/10/2009, at 9:06 PM, nimalika fernando wrote:
>
> Hi,
>
> I was involved in doing some introductory level GIS unit ( not for geography
> people) in Asia last year.
> Once I was asked to do that course, I faced the same situation as you. We
> are working under very tight cost constraints and cannot use costly material
> or ask people to use such.
> I have prepared some presentations for the course  with lot of supporting
> material from freely available web resources/ diagrams etc. That does not
> cover sufficient level of GPS surveying .
>
> There are few basic level tutorials I have prepared  on using software to
> prepare maps also. I have used QGIS /Udig as the software.
>
> Do you like to have a look at them ?
>
> If so I may be able to provide an access code for this material available in
> their website.  You may use them if useful for your purpose.
> Goodluck!
>
> Nimalika
>
>
> On Fri, Oct 30, 2009 at 2:35 PM, G. Allegri  wrote:
>>
>> I'm going to teach a course (mostly as volunteer time) on GIS basics
>> and GPS surveying for an ONG in Africa. The first two days they will
>> self-teach cartography basics, then I'll begin from GIS, etc. They
>> asked me if I could indicate them some links to free introductory
>> material on cartography (earth shape, coordinates, maps, reference
>> systems, projections, etc.).
>> Does anybody know web resources, or could share copyleft
>> tutorials/manuals/etc on the subject? I've found something googling,
>> from wikipedia to some sparse course chapters, but I would like to
>> find structured, clean and easy, stuff. Am I asking too much?
>>
>> Thanks very much,
>> Giovanni
>> ___
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>> Discuss@lists.osgeo.org
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>
>
>
> --
> Nimalika Fernando
> http://nimalika.blogspot.com/
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[OSGeo-Discuss] looking for introductory material on cartography

[G. Allegri]

I'm going to teach a course (mostly as volunteer time) on GIS basics
and GPS surveying for an ONG in Africa. The first two days they will
self-teach cartography basics, then I'll begin from GIS, etc. They
asked me if I could indicate them some links to free introductory
material on cartography (earth shape, coordinates, maps, reference
systems, projections, etc.).
Does anybody know web resources, or could share copyleft
tutorials/manuals/etc on the subject? I've found something googling,
from wikipedia to some sparse course chapters, but I would like to
find structured, clean and easy, stuff. Am I asking too much?

Thanks very much,
Giovanni
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Re: [OSGeo-Discuss] GISVM Server Release Candidate 1 is publicly available

[G. Allegri]

Thanks Ricardo, it seems a great work!
I will test it for my next student classrooms.

Giovanni

2009/10/1 Ricardo Pinho 

> GISVM ANNOUNCEMENT – 2009.09.28:
>
>
> 1. RELEASE CANDIDATE 1 of “GISVM SERVER” is now publicly available at:
>
> http://gisvm.com
>
> Full release details can be found at:
>
> http://gisvm.com/wiki/index.php?title=GISVM_Server_-_Release_Candidate_1_-_20090831
>
>
> 2. I’m also proud to announce that “I’m speaking” at Sydney FOSS4G 2009 on
> behalf of the GISVM project:
>
> http://www.gisvm.com/blog/?p=133
>
>
>
> 3. GISVM Server download is now only available for a DISTRIBUTION FEE OF 10
> EUROS!!!
>
> THIS
> IS MEANT TO HELP REDUCE MY PERSONAL COSTS FOR THE TRIP, HOTEL and EVENT
> REGISTRATION that are going to be up to 5.000 US Dollars!
>
> Remember - GISVM IS AN UNSPONSORED PROJECT!!!
>
> If you consider it a useful and worthy project, PLEASE CONTRIBUTE TOWARDS
> GISVM's PRESENCE AT FOSS4G 2009. THANK YOU!!!
>
>
>
> 4. GISVM Help Wiki is now available for documentation of GISVM:
>
> http://gisvm.com/wiki
>
>
>
> **
> GISVM Server Release Candidate 1 - ANNOUNCEMENT DETAILS:
> **
>
> GIS
> Virtual Machine Server is another product based on the GISVM new
> concept for Free Open Source Geospatial Software distribution.
>
> This GISVM Server edition is based on Ubuntu Server operating system and
> several free open source server softwares.
>
> Run
> this Virtual Machine on your computer and instantly get a personal GIS
> Server running in the background, just as if you had a new server
> computer on your local network, ready to use with your favorite GIS
> desktop application!
>
> On the Virtual Machine Server you will
> find several geospatial and location web services based on OGC Open
> Geospatial Standards, such as: WMS, WFS, WCS, WPS, etc. So, GISVM
> Server also offers an easy way into OGC Open Geospatial Standards and
> benefits from the power of real interoperability.
>
>
> The GISVM Server includes:
> - Ubuntu 9.04 Server Edition JeOS (Just enough OS)
> - LAMP Server bundle (Linux, Apache, MySQL and PHP)
> - Samba File Server
> - Tomcat Java Server
> - PostgreSQL database server
> - PostGIS (PostgreSQL spatial extension), ZigGIS and FDO ready!
> - Mapserver
> - Geoserver
> - Deegree
> - Geonetwork
> - Webmin (a web-based interface for GISVM Server administration)
>
>
> If
> you think this is a useful and interesting product, please help us to
> improve it with your participation on the testing forum board:
> http://gisvm.com/forum/index.php?board=6.0
>
> Thank you for your time and collaboration!
> Best regards,
> Ricardo Pinho
>
>
>
>
>  
> 
> Veja quais são os assuntos do momento no Yahoo! +Buscados
> http://br.maisbuscados.yahoo.com
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Re: [OSGeo-Discuss] Next 5 years for OSGeo

[G. Allegri]

I agree that neither OsGEO nor the communities are meant to reproduce such
full featured proprietary architectures. I think thay should point to give a
strong, common, backgorund to even enable (someone) to build richer,
integrated platforms. I know it's a hard target, and something is going on
with this (ie the cartographic library), but it would help a lot to
guarantee a low level concistency between the softwares. Ok, I'm talking for
the C/C++ side of the world, but it's the same for the Java one. A good
exemple for the latter is the integration of SextanteGIS inside the major
projects (uDig, OpenJUMP, JGrass, Gvsig, etc.).

giovanni


2009/9/15 Michael P. Gerlek 

> Thinking aloud, a possible contrarian view:
>
> A goal like "to produce a comprehensive suite of tools [that do X or Y]..."
> doesn't likely fit with OSGeo's broad membership and interests.  We are an
> umbrella organization representing a number of projects, each with its own
> unique goals and agendas.  It is unlikely OSGeo would be able to produce a
> specific tool just because (hypothetically) the Board says we should: open
> source folks often don't take top-down direction well, unless it meets their
> own personal needs and agendas.
>
> Which is not to say that an analytical tool suite is a bad idea, just that
> it seems unlikely to be a worthy goal at that level of the hierarchy.
>
> -mpg
>
>
> > -Original Message-
> > From: discuss-boun...@lists.osgeo.org [mailto:discuss-
> > boun...@lists.osgeo.org] On Behalf Of "René A. Enguehard"
> > Sent: Monday, September 14, 2009 2:35 PM
> > To: OSGeo Discussions
> > Subject: Re: [OSGeo-Discuss] Next 5 years for OSGeo
> >
> > What I'd like to see within the next 5 years would be more analytical
> > tools. Most of the projects in OSGeo are very much enablers: they put
> > the facilities in place for people to program their own tools. However,
> > as I have noticed over the years, people are reluctant to move to open
> > source implementations of geospatial software because they are, in
> > effect, losing capabilities. Yes, there is still the potential for the
> > same capabilities to be put back in, but the fact remains they just
> > aren't there. For example, I have never seen any MCDA, PCA, HotSpot
> > Analysis, CART or neural network tools in open source packages. If we
> > were to produce a comprehensive suite of tools offering the standard
> > analytical tools as well as some more advanced ones, then these
> > proprietary offerings wouldn't look as appealing. Moreover, if we had a
> > consolidated toolset which could be used on a multitude of project we
> > would not have to re-invent the wheel for each separate project.
> > Currently, proprietary software generally offers advanced analytic
> > capability out-of-the-box and open source software does not. I see this
> > as a bit of a stumbling block.
> >
> > Another thing, and I was chatting about this in the lab today, is that
> > for particular needs, open source implementations of geospatial
> > software
> > generally don't have much to offer. The generic capabilities are there,
> > or at least enabled for others to program, but special-needs cases
> > there
> > is not much. The example used today in the lab was CARIS HIPS or SIPS.
> > What, if anything, exists in the open source community that could come
> > close to the processing capabilities of this?
> >
> > Still another area with a lack of development is 3D and 4D modeling /
> > rendering / analysis, something like ESRI ArcGlobe with the 3D Analyst
> > package or Myriax Eonfusion. There has been very little work in these
> > domains which are of particular interest to me. Perhaps the amount of
> > people working in these areas is much smaller than the amount of people
> > using something more like general analytic capabilities, but it is an
> > area that "needs work" nonetheless.
> >
> > The point, and I'd like to make this clear, is not the I'm bemoaning
> > the
> > lack of features and projects in the open source community. I think
> > OSGeo and the open source community have done a tremendous job and
> > should feel, rightfully, proud at what they have accomplished. However,
> > when asked what I'd like to see on the agenda for OSGeo, this is it.
> > I'd
> > like to see a hard push towards analytics to make the various projects
> > we have to offer more directly useful to the average GIS user. In the
> > end, it's really about market penetration. The more useful open source
> > software is, the better a "deal" it looks like to outsiders and the
> > more
> > people we'll attract.
> >
> > Please note: I don't presume to speak for anyone but myself, IANAL,
> > just
> > my two cents, your mileage may vary, et cetera, et cetera, ad nauseam.
> >
> > Tyler Mitchell (OSGeo) wrote:
> > > Hi everyone, a recent chat I was asked about our vision for OSGeo
> > over
> > > the next 3 and 5 years.  I'd really like to hear thoughts on the
> > matter
> > > and pool a few of the ideas toge

Re: [OSGeo-Discuss] Next 5 years for OSGeo

[G. Allegri]

>
> Libraries and tools that can be used across different OSGEO apps.
>
>

+1, from a software point of view.
I can compare my experience as a user and programmer in the last five years
with OSGeo (and other FOSS tools) against my parallel experience with
ArcGIS, Erdas, Isatis, etc. A very sinthetic resume:

Many people are aware of the potentialities of many OSGeo softwares, thanks
also to foundation libraries like GDAL. The problem is the step from
potential to daily use. I know that ideally everyone could contribute to
higher level features (sponsorship, dev, testing, docs, etc.), but the step
from ideality to practice still keeps many practitioners bound to more
integrated, full featured, softwares (first of all ArcGIS).
I see a main problem to this: FOSS gis still suffers lack of data model and
user experirence consistency. The OS freedom is a coin: one face shows all
the benefits of independent communities, etc. while the other makes it
appear a big confused arena to the most users... I would support more and
more the development and sharing of low level, generic libraries.
algorithms, cartograhpic, but also data structures (I'm working hard to
produce a seemless integration between SAGA and QGis, and the work is
prominently dedicated to this).
This would facilitate the OSGeo software integration and so the building of
full featured products (QGis GUI + GRASS/SAGA algorithms + R analysis + 
= something more similar to commercial stacks), and would help the
interfacing with the rest of the world.

+1 for OSGeo Edu, and the Journal.

giovanni
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Re: [OSGeo-Discuss] SpatiaLite and RasterLite

[G. Allegri]

>From GDAL 1.7 SpatiaLite is being supported:
http://www.gdal.org/ogr/drv_sqlite.html
+1 for RasterLite support too...

giovanni

PS: r.external is a specific GRASS command...
http://grass.itc.it/grass64/manuals/html64_user/r.external.html

2009/7/20 Paolo Cavallini 

> Hi all.
> SpatiaLite and RasterLite have recently been released:
> http://www.gaia-gis.it/spatialite/
> RasterLite supports pyramids and tiles. Sample files available here:
> http://download.gfoss.it/
> Both are extremely interesting, filling up a gap of functionality (a
> personal geoDB, raster and vector) in the  freeGIS arena. The vector
> part is now quite usable thanks to the QGIS data provider (plus
> spatialite-gis), but to have both fully integrated into the freeGIS
> stack the right way to go is to plug their support into GDAL/OGR. I see
> a number of advantages in this, eg all grass rasters could be moved to a
> RasterLite db and accessed for analyses through r.external.
> Are there plans to implement this? As the APIs are quite simple, it
> looks an easy task.
> All the best.
> --
> Paolo Cavallini: http://www.faunalia.it/pc
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Re: [OSGeo-Discuss] Using GPL for geospatial software in a commercial application.

[G. Allegri]

Ok, so I have a double issue :)
If it went into SPAM it was deleted (my spam is empty now)...

Qgis wiki admins: As you can see *I AM* the 'giohappy' account (you can see
it because this is the email address I've registered). So, alternately:

 - can you confirm me manually?
 - can you delete my account? I will recreate it then...

thx,
giovanni

2009/7/15 Christopher Schmidt 

> On Tue, Jul 14, 2009 at 04:12:14PM -0700, Landon Blake wrote:
> > I'm working on a group of AutoLISP scripts for IntelliCAD and AutoCAD
> > that increase cooperation between these CAD programs and FOSS GIS
> > software. (For example: One set of my scripts allows CAD users to export
> > drawing geometry in OGC WKT format.)
> >
> >
> >
> > I'd like to release these scripts under Version 3 of the GPL, but I'm
> > not sure if this is possible. The scripts are read by proprietary CAD
> > programs, and I don't have the power to release the code for these
> > programs under the GPL.
>
> The GPL requirements for this case are only when you 'distribute' the
> work.  I'm assuming you don't expct that people will take your scripts,
> build them into the CAD programs, and then 'distribute' them togther. So
> long as that is the case, it seems likely that this won't be an issue:
> your code is GPL, and you're not 'shipping' their code, or at least not
> outside 'mere aggregation' (which doesn't drag in derivative clauses).
>
> So, I can't see any likely problems with this.
>
> IANAL,
> --
> Christopher Schmidt
> Web Developer
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Re: [OSGeo-Discuss] Using GPL for geospatial software in a commercial application.

[G. Allegri]

Hi Landon.
If understand correctly you use AutoLISP to produce interpreted helper
scripts, so you don't create binary libraries to be statically (in this case
GPL is an issue) or dynamically (there are various interpretations in this
case) linked, am I right?
AFAIK you can keep your code GPL until the programs that use it don't link
it in their binaries. If they use it like a "service" and don't incorporate
your code in their one, the two licences can be considered decoupled.

giovanni

2009/7/15 Landon Blake 

>  I’m working on a group of AutoLISP scripts for IntelliCAD and AutoCAD
> that increase cooperation between these CAD programs and FOSS GIS software.
> (For example: One set of my scripts allows CAD users to export drawing
> geometry in OGC WKT format.)
>
>
>
> I’d like to release these scripts under Version 3 of the GPL, but I’m not
> sure if this is possible. The scripts are read by proprietary CAD programs,
> and I don’t have the power to release the code for these programs under the
> GPL.
>
>
>
> Must I use something like the LGPL or another non-viral license? I’ve never
> written open source code utilized by a proprietary program in this way, but
> I’m hoping some of you have dealt with this issue before.
>
>
>
> Thanks for any suggestions.
>
>
>
> Landon
>
>
>
>
> *Warning:
> *Information provided via electronic media is not guaranteed against
> defects including translation and transmission errors. If the reader is
> not the intended recipient, you are hereby notified that any dissemination,
> distribution or copying of this communication is strictly prohibited. If you
> have received this information in error, please notify the sender
> immediately.
>
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[OSGeo-Discuss] Re: [Qgis-user] QGIS donations

[G. Allegri]

> or allocating directly a developer to help fixing up bugs, etc.

this is one of the "features" I've suggested for the founding system
some time ago. How can it be done? Is it something one should manage
by himself, contacting directly the developer?

thanks,
giovanni
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Re: [OSGeo-Discuss] osgeo4w stack building notes: maybe a dedicated wiki?

[G. Allegri]

I will try, as soon as possible, to start setting up the building
environment. If the actual people doing the work could transmit what
has been done, I can give a hand in mantaining the packaging. I'm not
so prepared on Windows environment, but the company I'm working for at
now would need it, so I could share my efforts with the community too!

Giovanni

2009/2/26 Markus Neteler :
> On Thu, Feb 26, 2009 at 5:14 PM, Frank Warmerdam  wrote:
> ...
>> To some extent this will depend on those who are doing the builds now
>> to describe details - in this case Jurgen.
>
> We are looking forward to this. Also for the aspect of
> a potential maintenance transition to someone else (since
> Juergen seeks another maintainer).
> We need to enable more people to make builds, please
> document the instructions in OSGeo4W-trac. Then it
> will be much easier to find a new maintainer.
>
> Congratulations for the hard work so far.
>
> Thanks for this,
> Markus
>
> ("selling" OSGeo4W currently at the Italian GRASS/GFOSS meeting
>  http://gfoss2009.crs4.it/
> )
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[OSGeo-Discuss] osgeo4w stack building notes: maybe a dedicated wiki?

[G. Allegri]

osgeo4w is making its way in various institutions. The tam-tam has
begun and I hear people beginning to ask about it. The Windows users
are the most between GIS users, so it is an expected clamour.
Right yesterday I've been asked if it's possible to manage
GRASS/QGIS/GDAL/R/Python bindings building with the same ease as on
Linux platforms. I've left the Windows world some years ago, but now I
need to start again with it, and I need to answer this question to my
boss and collegues. I've read in the recent MLs threads about QGIS and
MSVC, GRASS on MSYS, R... I'm not sure but AFAIU MSYS too... My boss
has asked me to have a build of GRASS7, with the new Python bindings,
and the rest of the stack I said before. Is it possible to organize in
the OSGEO wiki some notes on how to start up with the building of it?
There are various sparse notes (for GRASS and QGIS), but they mostly
refer to the single executables, and not to the Osgeo4w way.
I know it's not easy to realize it, first of all because everything is
evolving very fast, and things change in a day... But it could help,
at least to have a first reference (notes and people working on that
specific topic). OsGeo4w wiki could be the right place.
Anyway, next days I will start the long way to GRASS7+QGIS building! :)

Bye,
Giovanni
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Re: [OSGeo-Discuss] RE: [Majas-dev] [Majas-users] Flex in geomajas

[G. Allegri]

> OpenScales is a very new project aiming at building with Flex something
> similar to OpenLayers.

Hi Benjamin. I didn't know about this project. Is there any demo,
screenshot, or similar?
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Re: [OSGeo-Discuss] osgeo4w setup.exe source code?

[G. Allegri]

Thanks Frank!

2009/2/25 Frank Warmerdam :
> G. Allegri wrote:
>>
>> Hello list.
>> Thanks everyone for the great work done with OSGeo4W.
>> I have a strange (maybe) question. I suppose that osgeo4w setup.exe is
>> a fork of the cygwin's setup. Is it possible to view/download its
>> source code?
>
> Giovanni,
>
> Yes, it is available in svn at:
>
>  http://svn.osgeo.org/osgeo4w/trunk/setup/
>
> Some more information it is available at:
>
>  http://trac.osgeo.org/osgeo4w/wiki/SetupDevelopment
>
> Best regards,
> --
> ---+--
> I set the clouds in motion - turn up   | Frank Warmerdam,
> warmer...@pobox.com
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush    | Geospatial Programmer for Rent
>
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[OSGeo-Discuss] osgeo4w setup.exe source code?

[G. Allegri]

Hello list.
Thanks everyone for the great work done with OSGeo4W.
I have a strange (maybe) question. I suppose that osgeo4w setup.exe is
a fork of the cygwin's setup. Is it possible to view/download its
source code?

Thanks, Giovanni
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Re: [OSGeo-Discuss] RE: [Majas-dev] [Majas-users] Flex in geomajas

[G. Allegri]

I've worked for some months on Flex (and on Extjs at the same time). I
think it's a very powerful framework that boosts the productivity,
easy to program, with lots of support resources. Ok, it's Adobe, it
depends on Flash players, and so on (and it worths thinking twice to
adopt it) so, my idea is always the same: the choice depends on the
business target, and what you want from it. I've reached high
vectorial interactivity on heavy geometries with few lines of code. My
boss asked me edge cutting animated charts, interaction between charts
and map features, on hundreds classes of statistical indicators...
Flex has been the easier and faster answer.
For a general purpose gis client I wouldn't like to have ONLY a Flex
interface. But it could be an important, and unique feature, for the
OS world of GIS, like the double clients in ArcGIS Server: ArcGIS JS
API and Flex API. The best from both.

2009/2/24 P Kishor :
> On Tue, Feb 24, 2009 at 7:01 AM, Leonardo Mateo  
> wrote:
>> On Tue, Feb 24, 2009 at 7:25 AM, Dirk Frigne  wrote:
>>> Sorry for the cross posting, but I found an interesting mail about
>>> performance and webmapping in the majas developers list.
>>>
>>> Today, Geomajas is written in Java for the server part, and uses Javascript
>>> in the frontend.
>>> Although the performance is good enough to support a proper amount of
>>> editable objects, we always are looking to mechanisms to improve the speed
>>> and usability of the front end.
>>>
>>> Pieter has done some tests with the Flex technology and they are very
>>> promising(details in his mail attached).
>>> Should it be a problem for distribution that the technology is shipped in
>>> the form of an installable plug-in instead of native browser technology such
>>> as VML or SVG, or isn't that an issue?
>>>
>>> And who has experience with this technology?
>>>
>>> I would appreciate your feedback ...
>>>
>>>
>> Ok, here's my grain of sand. I don't know what geomajas is, so I don't
>> know how much Flex would impact on this.
>> I've been working with Flex from the past two years or so, now a days
>> a little less intensive, but still working. I've worked with two or
>> three map API's for Flex and I have to say that totally worth it.
>> About the speed, I haven't seen any benchmark bu ActionScript3 should
>> be way faster than JavaScript and should work fine with large amount
>> of data, wether you use raw XML or some other technology such as AMF*.
>> About the downside Pieter mention there, I think in these days, the
>> Flash plugin is something you should have on a browser, it is not a
>> strange requirement anymore. However, you shouldn't confuse Flash with
>> Flex, even when a Flex application is a Flash movie, their are used
>> for completly different things and can work togheter since you can,
>> from Flex, use resources from an swf made in Flash.
>>
>> Anyway, my opinion is: "go for it if your UI is complex enough", Flex
>> allows you to build a really complex, advanced UI with advanced
>> widgets that looks, performs and behaves really good. Programming AS
>> is way much easier than JavaScript (I come from a JS background too)
>> not to mention modularization possibilites with Flex Modules and
>> Libraries also, you should reduce the browser compatibility issues in
>> a 95% at least.
>>
>>
>
>
> I too don't know what geomajas is, and Flex may or may not be the best
> solutinon for it, but consider that Flex/Flash are not supported on
> iPhone, and probably never will be. Actually, I don't know much about
> Flash/Flex as well, but I am assuming that even though they are
> different products, they produce the same SWF end result, and require
> a Flash player/plugin on the client, and Flash is a huge CPU hog. Ever
> since I installed ClickToFlash
> (http://github.com/rentzsch/clicktoflash/) on my Macbook, I am a happy
> camper.
>
> So, if you don't mind geomajas to not be accessible to the largest
> mobile web platform, Flex/Flash may well be a good solution.
>
> --
> Puneet Kishor http://www.punkish.org/
> Nelson Institute for Environmental Studies http://www.nelson.wisc.edu/
> Open Source Geospatial Foundation (OSGeo) http://www.osgeo.org/
> Sent from: Madison WI United States.
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Re: [OSGeo-Discuss] Raster data on RDBMS

[G. Allegri]

Thanks everyone for this interesting thread. I think the two
approaches have different goals:

 - rendering-on-demand performance comparison
 - raster serving performance comparison

Both are of interest, but they shouldn't be confused.
It might be helpful to write a wiki page (or something else) where to
gather the "best-practices" on serving (big) rasters. Well, it could
be interesting for vectors too, but it's a different story.
It's a common task for many of us, and it would be of help for both
the newbies and the more experienced users...
Ok, sorry for this OT digression :)

2008/10/29 Frank Warmerdam <[EMAIL PROTECTED]>:
> Sylvan Ascent Inc. wrote:
>>
>> I think, that since the goal of all this storage of pyramids and the like
>> is
>> just to get speed, that they aren't apples/oranges, but apples apples,
>> since
>> they are both pyramid schemes, just in different places, either in front,
>> or
>> in back of the server.
>
> Roger,
>
> My point is that a tile caching approach is really comparing tile caching
> performance to rendering-on-demand performance while I think the original
> point was that rendering-from-database and rendering-from-filesystem could
> have similar performance for input raster data.
>
> Your comparison is also of interest but I don't think it is fair to compare
> rendering from Oracle through MapServer (or GeoServer) to satisfying
> map requests directly from a tile cache.
>
> Best regards,
> --
> ---+--
> I set the clouds in motion - turn up   | Frank Warmerdam,
> [EMAIL PROTECTED]
> light and sound - activate the windows | http://pobox.com/~warmerdam
> and watch the world go round - Rush| Geospatial Programmer for Rent
>
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[OSGeo-Discuss] New Job Opportunity with FBK-MPBA

[G. Allegri]

I've filled a new job opportunity with FBK-MPBA (Trento-Italy) on the Jobs Board
http://wiki.osgeo.org/wiki/Jobs_Board

Giovanni
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[OSGeo-Discuss] European Union Satellite Centre: EUSC Software Days

[G. Allegri]

Anyone partecipating from the OS community?
http://www.eusc.europa.eu/index.php?option=com_content&task=view&id=46&Itemid=15

Giovanni
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Re: [Proj] RE: [OSGeo-Discuss] Brief history of GIS OSS (bit off topic?)

[G. Allegri]

Some interesting details about the OpenGIS birth can be found also in
Gardel's OGC history:
http://www.opengeospatial.org/ogc/historylong

Giovanni

2008/8/21 Mateusz Loskot <[EMAIL PROTECTED]>:
> Norman Vine wrote:
>>
>> Mateusz Loskot writes
>>>
>>> Sent: Wednesday, August 20, 2008 10:29 PM
>>
>>> Subject: Re: [OSGeo-Discuss] Brief history of GIS OSS (bit off topic?)
>>>
>>> George Silva wrote:

 Hello lists,

 As you can i see im mailing this message to some lists around the web
 (im sorry if thats a problem).

 At the moment i am writing my BSc thesis (Geography) focusing the
 development of a open source software and database for logging and 
 analysing
 traffic accidents in Uberlândia, MG - Brazil.

 I am dedicating a chapter in my thesis to explaining Open Source
 Software, and OSS for GIS. i searched the web for some
>>>
>>> history of OSS in

 general, but i found too many different sources. So i come to you,
 developers of GIS OSS, to see if you can give me references
>>>
>>> of where to

 search for the history and process regarding this theme.
>>>
>>> George,
>>>
>>> Here is number of "keywords" related to history of FOSS4G
>>> and that you may google for and find details:
>>>
>>> - Sol Katz
>>> - Map Overlay and Statistical System (MOSS)
>>> - GRASS History (http://grass.itc.it/devel/grasshist.html)
>>> - UMP MapServer history
>>
>>
>> Mateusz
>>
>> Great credits but don't forgot http://trac.osgeo.org/proj/ or perhaps
>> http://members.verizon.net/~vze2hc4d/proj4/ :-)
>>
>> Thanks Gerry !!
>
> Norman,
>
> Yes, I've forgot about these two. Thanks for completing.
>
> Best regards,
> --
> Mateusz Loskot, http://mateusz.loskot.net
> Charter Member of OSGeo, http://osgeo.org
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[OSGeo-Discuss] XTF reader neede - triton format for sonar

[G. Allegri]

Hi list,
I'm facing the need to process some sonar files in XTF (eXtensible
Triton Format), but I can't find anything as OS to do it.
Does anyone have experience with such a format?

XTF References:
http://www.tritonimaginginc.com/site/content/public/downloads/FileFormatInfo/Xtf%20File%20Format_X24.pdf
http://woodshole.er.usgs.gov/operations/sfmapping/sonar_xtf.htm

Free (as free beer) reader:
http://www.knudsenengineering.com/html/software/postsurvey.htm

Thanks,
Giovanni
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