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

2009-03-18 Thread Bouiaw
Hi,

We had recently an important code contribution (
http://groups.google.com/group/openscales-dev/browse_thread/thread/4def87c3cf90410e)
from Scott that ported OpenLayers to ActionScript3 ! We use this code
contribution as OpenScales codebase, and have began to improve it.

A first demo (not bug free yet and not optimized) is available here :
http://openscales.org/openscales-flexlayers.swf
Roadmap proposal is available here :
http://groups.google.com/group/openscales-dev/browse_thread/thread/fb177ae0557ad7b0

Any feedbacks or contributors are welcomed,
Bouiaw

 It seems that OpenScales is at a very beginning stage. Some materials can
be found at  http://openscales.org/p/openscales/downloads/ but not so much.
 The available demos come from other projects (FlexMaps and ModestMaps).

 Benjamin

 G. Allegri a écrit :
 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] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-25 Thread Benjamin Chartier




You may get in touch with the OpenScales project team in order to get
additional feedback:
http://openscales.org/
OpenScales is a very new project aiming at building with Flex something
similar to OpenLayers.

Regards,

Benjamin Chartier


Dirk Frigne a écrit :

  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 ...


Sincerely,
Dirk Frigne

http://www.geomajas.org 




  
  
-Oorspronkelijk bericht-
Van: majas-dev-boun...@geomajas.org

  
  [mailto:majas-dev-boun...@geomajas.org]
  
  
Namens Aurélien Pelletier
Verzonden: maandag 23 februari 2009 11:04
Aan: pieter.degr...@geosparc.com
CC: majas-users; l...@gegis.org; majas-dev
Onderwerp: Re: [Majas-dev] [Majas-users] Flex in geomajas

I work with client in the french public sector, additional plugin to the
navigator like flash is usualy an issue.

About mapping and flex you might want to check out
http://openscales.org

Regards,

Aurélien

Pieter De Graef wrote:


  Hi,

i've been running tests on using Flex as a mapping technology for
geomajas. The first results seem very promising: it is very fast and
relatively easy to program for. Besides, Flex (or flash) has a market
penetration of over 90% (flash 9 that is).
The downside is that the bridge between _javascript_ and Flex'
ActionScript is slow. So we should avoid sending large datastreams
(large amount of features) over it.

Anyway, the main question it wanted to ask on this list, is this:
how commited is everyone to browser built-in technologies (such as VML
in Internet explorer or SVG in FireFox)?

We could for example simply throw out both VML and SVG, and replace them
both with flex, but i am afraid that many companies' IT sections will
object to geomajas requiring a plugin to work...

Any thoughts?

Regards,

Pieter De Graef

GeoSparc nv.
http://www.geosparc.com/

Sponsor of: http://www.geomajas.org/


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

2009-02-25 Thread 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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[OSGeo-Discuss] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-24 Thread Dirk Frigne
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 ...


Sincerely,
Dirk Frigne

http://www.geomajas.org 




 -Oorspronkelijk bericht-
 Van: majas-dev-boun...@geomajas.org
[mailto:majas-dev-boun...@geomajas.org]
 Namens Aurélien Pelletier
 Verzonden: maandag 23 februari 2009 11:04
 Aan: pieter.degr...@geosparc.com
 CC: majas-users; l...@gegis.org; majas-dev
 Onderwerp: Re: [Majas-dev] [Majas-users] Flex in geomajas
 
 I work with client in the french public sector, additional plugin to the
 navigator like flash is usualy an issue.
 
 About mapping and flex you might want to check out
 http://openscales.org
 
 Regards,
 
 Aurélien
 
 Pieter De Graef wrote:
  Hi,
 
  i've been running tests on using Flex as a mapping technology for
  geomajas. The first results seem very promising: it is very fast and
  relatively easy to program for. Besides, Flex (or flash) has a market
  penetration of over 90% (flash 9 that is).
  The downside is that the bridge between Javascript and Flex'
  ActionScript is slow. So we should avoid sending large datastreams
  (large amount of features) over it.
 
  Anyway, the main question it wanted to ask on this list, is this:
  how commited is everyone to browser built-in technologies (such as VML
  in Internet explorer or SVG in FireFox)?
 
  We could for example simply throw out both VML and SVG, and replace them
  both with flex, but i am afraid that many companies' IT sections will
  object to geomajas requiring a plugin to work...
 
  Any thoughts?
 
  Regards,
 
  Pieter De Graef
 
  GeoSparc nv.
  http://www.geosparc.com/
 
  Sponsor of: http://www.geomajas.org/
 
 
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Re: [OSGeo-Discuss] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-24 Thread Leonardo Mateo
On Tue, Feb 24, 2009 at 7:25 AM, Dirk Frigne dirk.fri...@dfc.be 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.


Hope it helps.
-- 
Leonardo Mateo.
There's no place like ~
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Re: [OSGeo-Discuss] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-24 Thread Milo van der Linden

+1 for flex;

I am using a xubuntu 64bits distro as operating system. recently the 
people at adobe released a 64 bit pre-release for flashplayer 10 and it 
works like a charm here. It is good to see that adobe is putting effort 
into 64bit too.


The adobe air platform is also moving to maturity on linux, so that is 
another good thing to guarantee a large user base.


As an example; the french gendarme is completely moving away from 
windows: 
http://afp.google.com/article/ALeqM5iU4Lq7tOR_WVOJLZ3IeRaIH03x6w and 
becoms more and more linux based. It seems to may that governmental 
bodies like this could really benefit from a good mapping application 
that is no longer depending on ocx's or other windows only 
architectures. I would not bet my money on microsoft silverlight as an 
alternative to flex.



Mapping with flex would really light my heart!

Leonardo Mateo wrote:

On Tue, Feb 24, 2009 at 7:25 AM, Dirk Frigne dirk.fri...@dfc.be 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.


Hope it helps.
  


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

2009-02-24 Thread P Kishor
On Tue, Feb 24, 2009 at 7:01 AM, Leonardo Mateo leonardoma...@gmail.com wrote:
 On Tue, Feb 24, 2009 at 7:25 AM, Dirk Frigne dirk.fri...@dfc.be 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] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-24 Thread 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 punk.k...@gmail.com:
 On Tue, Feb 24, 2009 at 7:01 AM, Leonardo Mateo leonardoma...@gmail.com 
 wrote:
 On Tue, Feb 24, 2009 at 7:25 AM, Dirk Frigne dirk.fri...@dfc.be 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] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-24 Thread strk
On Tue, Feb 24, 2009 at 08:47:57AM -0500, Christopher Schmidt wrote:

 So long as you are willing to completely ignore that Flash now has
 multiple players, anyway. (Gnash is becoming competent enough that it's 
 actually usable, and in some cases, more so than existing Flash
 clients.) With the opening of the Flash spec and the existence of
 multiple players, if you actually care about hitting the niche markets
 currently served by non-Adobe Flash, you're in the same boat as you are
 in the browser world.

Gnash can also be used on embedded systems.
See screenshots here: http://wiki.gnashdev.org/Gnash#Screenshots

If you stick with older SWF version compatibilities you keep
the door open for embedded mapping apps with a flash lookfeel.

I've been working on such setup for years:
 http://simm-dev.keybit.net

SIMM is free software and builds with Ming (also free software)
producing SWF versions which can be played with Gnash, and using
mapserver-like mapfiles as input for the dataset generator:
http://simm-dev.keybit.net/modules/geoswf/index.html

If you're interested in that tecnology drop me a note.

--strk;

 Free GIS  Flash consultant/developer  ()  ASCII Ribbon Campaign
 http://foo.keybit.net/~strk/services.html  /\  Keep it simple! 
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Re: [OSGeo-Discuss] RE: [Majas-dev] [Majas-users] Flex in geomajas

2009-02-24 Thread Alex Mandel
Christopher Schmidt wrote:
 On Tue, Feb 24, 2009 at 10:01:34AM -0300, Leonardo Mateo wrote:
 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, in corporate environments (enterprise) or in the case of Open
 Souce geeks, you have two groups of people who commonly dnt have Flash
 installed -- the former due to to corporate policy, the latter due to
 sometimes esoteric operating systems and setups that don't support it.
 (For example, Flash, the last time I was aware, still didn't natively
 work on 64bit...) 
 

64bit on Linux is available now as Adobe binary, but it always lags on
the release for several months. Ensuring Gnash compatibility would be
better.

If you want people to use your tool at work that corporate non-admin on
machines is a killer. Not even a direct policy against flash, just a
your not allowed to install anything policy.


Don't get me wrong, I'm not saying don't do it, just remember to
acknowledge alternatives, at minimum an error message telling people why
the page doesn't work. But better an alternative viewer with less fancy
stuff.

Alex

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