Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-12-16 Thread Vincent Picavet
Hello,

Le dimanche 16 décembre 2012 02:36:31, pcr...@pcreso.com a écrit :
 I'm interested in at least discussing this thread going a step further,
 with respect to a SpatialLite based file transfer tool for geodata.
 
 The OGC has mandated many open standards, including SFS, which most spatial
 databases are predicated on.
 
 It is not that clear to me whether a spec for an Open File Geodatabase
 would be a fit within the OGC, but I suggest it is a possibility worth
 considering.
 

These links can be of interest : OGC geopackage 

http://www.opengeospatial.org/pressroom/pressreleases/1699
http://foss4g-na.org/schedule/army-geospatial-center-geopackage-gpkg/
https://portal.opengeospatial.org/files/50347


Vincent

 The OGC has standards for spatial data management, delivery, etc, so one
 for spatial data file sharing seems well within the mandate.
 
 This would perhaps be a slower  more involved process than simply building
 one for QGIS, but such a QGIS capability could be built as the reference
 application.
 
 
 Such a process would perhaps be OSGEO driven rather than QGIS specific, but
 obviously could include appropriate QGIS team members.
 
 Any support (or dissent) from those in the QGIS developer/user communities?
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


[Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-12-15 Thread pcreso
I'm interested in at least discussing this thread going a step further, with 
respect to a SpatialLite based file transfer tool for geodata. 

The OGC has mandated many open standards, including SFS, which most spatial 
databases are predicated on.

It is not that clear to me whether a spec for an Open File Geodatabase would be 
a fit within the OGC, but I suggest it is a possibility worth considering. 

The OGC has standards for spatial data management, delivery, etc, so one for 
spatial data file sharing seems well within the mandate.

This would perhaps be a slower  more involved process than simply building one 
for QGIS, but such a QGIS capability could be built as the reference 
application.


Such a process would perhaps be OSGEO driven rather than QGIS specific, but 
obviously could include appropriate QGIS team members.

Any support (or dissent) from those in the QGIS developer/user communities?


___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread Bernd Vogelgesang

Am 27.11.2012, 08:20 Uhr, schrieb Paolo Cavallini cavall...@faunalia.it:


On Mon, 26 Nov 2012 23:56:30 +0100, Bernd Vogelgesang
bernd.vogelges...@gmx.de wrote:


You just should not use Qspatialite to import shapes. I nearly gave up
upon spatialite, when i figured out that i had to use the Spatialite GUI



instead and this was fast as hell.


Why not using DB Manager?


Well, i can't figure out for what i can use it in my workflow other than  
loading a layer into Qgis.





So at the moment, you have to work with Spatialite GUI to import shapes,



I do not think users like to switch between different programs.


Indeed! I do not like it either, but this gives the best results so far  
(and the only results when i work with bigger datasets). Thats why  
improved spatialite support (in whatever way) would be really much  
appreciated.


greetz
Bernd



All the best.



--
Bernd Vogelgesang * Siedlerstrasse 2 * 91083 Baiersdorf * +49-9133-825374
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread kimaidou
Hi all,

One thing to add to our feature list is the ability to do the following :
* use the menu Add a vector layer
* choose a sqlite file
* a dialog with all tables contained in this file pops up and let the user
choose one
* load the layer (spatial or not) in QGIS


By the way, we in 3liz would love to spend some time implementing some of
these ideas to ease the use of Spatialite in QGIS. The main goal is the
ability to avoid the opening of the sqlite connection manager to do the
basics : open a layer, create a layer in a file (existing or not), saving a
layer, etc.
If someone can fund this work, I can write down a wiki page with some ideas
so that people can read/modify it.

Cheers,

Michael

2012/11/27 Bernd Vogelgesang bernd.vogelges...@gmx.de

 Am 27.11.2012, 08:20 Uhr, schrieb Paolo Cavallini cavall...@faunalia.it:


  On Mon, 26 Nov 2012 23:56:30 +0100, Bernd Vogelgesang
 bernd.vogelges...@gmx.de wrote:

  You just should not use Qspatialite to import shapes. I nearly gave up
 upon spatialite, when i figured out that i had to use the Spatialite GUI


  instead and this was fast as hell.


 Why not using DB Manager?


 Well, i can't figure out for what i can use it in my workflow other than
 loading a layer into Qgis.



  So at the moment, you have to work with Spatialite GUI to import shapes,



 I do not think users like to switch between different programs.


 Indeed! I do not like it either, but this gives the best results so far
 (and the only results when i work with bigger datasets). Thats why improved
 spatialite support (in whatever way) would be really much appreciated.

 greetz
 Bernd


 All the best.



 --
 Bernd Vogelgesang * Siedlerstrasse 2 * 91083 Baiersdorf * +49-9133-825374
 __**_
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/**mailman/listinfo/qgis-**developerhttp://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread pcreso
As long as users have the choice, that's fine.
I'm working with organisations with a very significant Arc server based GIS 
infrastructure,  am encouraging QGIS as a client for staff desktop use. This 
is not an uncommon situation,  QGIS needs to be viable for such use,  at 
least Arc compatible, if not Arc friendly. SpatiaLite, despite all it's 
advantages, is inappropriate here.

Brent Wood

--- On Tue, 11/27/12, Noli Sicad nsi...@gmail.com wrote:

From: Noli Sicad nsi...@gmail.com
Subject: Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !
To: haubourg regis.haubo...@eau-adour-garonne.fr
Cc: qgis-developer@lists.osgeo.org
Date: Tuesday, November 27, 2012, 11:10 AM

Spatialite 4.0.0 was released yesterday. Sandro will update the
Spatialite QGIS data provider in the next few days to support
Spatialite 4.0.x.

Noli







On 11/27/12, haubourg regis.haubo...@eau-adour-garonne.fr wrote:
 Hey +1 for me! I answered in the old post on GeoJSON.
 You pointed exactly what's missing now !




 --
 View this message in context:
 http://osgeo-org.1560.n6.nabble.com/Re-Get-rid-of-Shapefiles-Go-SpatiaLite-tp5018830p5018893.html
 Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread Stefan Keller
Hi Brent

Your point is very common and I understand this situation.
But the ArcGIS SW suite doesn't really make interoperability easy and tends
to maintain a vendor lock-in.
My proposal is to break this deadlock by programming an free ArcGIS desktop
extension which reads/writes Spatialite.
Any volunteers?

S.

2012/11/27 pcr...@pcreso.com

 As long as users have the choice, that's fine.

 I'm working with organisations with a very significant Arc server based
 GIS infrastructure,  am encouraging QGIS as a client for staff desktop
 use. This is not an uncommon situation,  QGIS needs to be viable for such
 use,  at least Arc compatible, if not Arc friendly. SpatiaLite, despite
 all it's advantages, is inappropriate here.


 Brent Wood

 --- On *Tue, 11/27/12, Noli Sicad nsi...@gmail.com* wrote:


 From: Noli Sicad nsi...@gmail.com
 Subject: Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !
 To: haubourg regis.haubo...@eau-adour-garonne.fr
 Cc: qgis-developer@lists.osgeo.org
 Date: Tuesday, November 27, 2012, 11:10 AM


 Spatialite 4.0.0 was released yesterday. Sandro will update the
 Spatialite QGIS data provider in the next few days to support
 Spatialite 4.0.x.

 Noli







 On 11/27/12, haubourg 
 regis.haubo...@eau-adour-garonne.frhttp://mc/compose?to=regis.haubo...@eau-adour-garonne.fr
 wrote:
  Hey +1 for me! I answered in the old post on GeoJSON.
  You pointed exactly what's missing now !
 
 
 
 
  --
  View this message in context:
 
 http://osgeo-org.1560.n6.nabble.com/Re-Get-rid-of-Shapefiles-Go-SpatiaLite-tp5018830p5018893.html
  Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.
  ___
  Qgis-developer mailing list
  Qgis-developer@lists.osgeo.orghttp://mc/compose?to=Qgis-developer@lists.osgeo.org
  http://lists.osgeo.org/mailman/listinfo/qgis-developer
 
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.orghttp://mc/compose?to=Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer


 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer


___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread pcreso
Hi Stefan,
I think QGIS users are more likely to seek interoperability with other systems 
than ESRI users. So making ESRI work with QGIS via SpatialLite is probably not 
something that offers ESRI users much benefit, they'll probably be using ESRI 
file geodatabases instead.
I believe QGIS will achieve more traction by working well with Arc,and 
seamlessly within an Arc environment, than the other way around. So while I 
have no problem with enhanced support for SpatiaLite for QGIS ( Arc), this 
should not be at the expense of shapefile support.
And for improved ESRI interoperability. given how ESRI provides (deliberately?) 
such poorly performing OGC web service support that ESRI users tend to use the 
ESRI restful services instead, is QGIS/GDAL support for ESRI's native web 
services at all likely?
Brent
--- On Wed, 11/28/12, Stefan Keller sfkel...@gmail.com wrote:

From: Stefan Keller sfkel...@gmail.com
Subject: Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !
To: pcr...@pcreso.com
Cc: qgis-developer@lists.osgeo.org
Date: Wednesday, November 28, 2012, 3:28 AM

Hi Brent
Your point is very common and I understand this situation.But the ArcGIS SW 
suite doesn't really make interoperability easy and tends to maintain a vendor 
lock-in.My proposal is to break this deadlock by programming an free ArcGIS 
desktop extension which reads/writes Spatialite.
Any volunteers?
S.
2012/11/27  pcr...@pcreso.com

As long as users have the choice, that's fine.
I'm working with organisations with a very significant Arc server based GIS 
infrastructure,  am encouraging QGIS as a client for staff desktop use. This 
is not an uncommon situation,  QGIS needs to be viable for such use,  at 
least Arc compatible, if not Arc friendly. SpatiaLite, despite all it's 
advantages, is inappropriate here.


Brent Wood

--- On Tue, 11/27/12, Noli Sicad nsi...@gmail.com wrote:


From: Noli Sicad nsi...@gmail.com
Subject: Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !
To: haubourg regis.haubo...@eau-adour-garonne.fr

Cc:
 qgis-developer@lists.osgeo.org
Date: Tuesday, November 27, 2012, 11:10 AM

Spatialite 4.0.0 was released yesterday. Sandro will update the

Spatialite QGIS data provider in the next few days to support
Spatialite 4.0.x.

Noli







On 11/27/12, haubourg regis.haubo...@eau-adour-garonne.fr wrote:

 Hey +1 for me! I answered in the old post on GeoJSON.
 You pointed exactly what's missing now !




 --
 View this message in context:
 http://osgeo-org.1560.n6.nabble.com/Re-Get-rid-of-Shapefiles-Go-SpatiaLite-tp5018830p5018893.html

 Sent from the Quantum GIS - Developer
 mailing list archive at Nabble.com.
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org

 http://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list

Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


___

Qgis-developer mailing list

Qgis-developer@lists.osgeo.org

http://lists.osgeo.org/mailman/listinfo/qgis-developer




___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread dncarreira
For what it's worth... I'm in a ESRI+QGIS environment. I feel QGIS should
obvioulsy improve spatialite usage. It should be intuitive and easy to
create, save, export spatialite layers.

For ESRI I can always convert to shapefile, like I have to do when going
from ESRI to QGIS. Hopefully as SL's adoption grows ESRI will pick it up. We
can't wait for them though...

Best,
Duarte



--
View this message in context: 
http://osgeo-org.1560.n6.nabble.com/Re-Get-rid-of-Shapefiles-Go-SpatiaLite-tp5018830p5019097.html
Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread kimaidou
Hi agin

Surely I did not mean to drop Shapefile support ! We must let the user
choose. But now, as ESRI Shapefile is the simplest/default way (yet
limited) to create/edit layers, we force the users to use it, which I
dislike for reasons written previously.
I think sqlite could be a great alternative. It has some limitations, but
improves as time passes. We just need to modify QGIS tools to deal with
sqlite file more smoothly as discussed before.

Regards
Michael

2012/11/27 Andrea Peri aperi2...@gmail.com

 Hi Stefan,
 I think QGIS users are more likely to seek interoperability with other
 systems than ESRI users. So making ESRI work with QGIS via SpatialLite is
 probably not something that offers ESRI users much benefit, they'll
 probably be using ESRI file geodatabases instead.
 I believe QGIS will achieve more traction by working well with Arc,and
 seamlessly within an Arc environment, than the other way around. So while I
 have no problem with enhanced support for SpatiaLite for QGIS ( Arc),
 this should not be at the expense of shapefile support.

 Hi,
 Try-ing to supporto esri arcgis will introduce other and bigger problems.

 We have many trouble due to the convention of esri for the hole that
 are touching the boundary of a polygon.

 The esri product will trasform this in a not OGC compatibile structure.
 That on a OGC system is defined Invalid.
 So when a dataset with hole is touched from a esri arcgis it could
 became invalid for OGC.

 This is so a problem for us that we fund a change to postgis to have a
 ST_IsValid with a flag for compatibily with esri gemetries.

 QGIS is absolutely unuseful try to follow Arcgis if QGIS himself also
 don't support this different structure of polygons with hole on
 boundaries.

 Regards,


 --
 -
 Andrea Peri
 . . . . . . . . .
 qwerty àèìòù
 -
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-27 Thread Noli Sicad
Hi Stefan,

 Your point is very common and I understand this situation.
 But the ArcGIS SW suite doesn't really make interoperability easy and tends
 to maintain a vendor lock-in.
 My proposal is to break this deadlock by programming an free ArcGIS desktop
 extension which reads/writes Spatialite.
 Any volunteers?

It's almost done (i.e. just read, not write Spatialtie).

AmigoCloud's GDAL/OGR Plugin for ArcGIS.

It reads from Spatialtie and other formats at the moment.

https://github.com/RBURHUM/arcgis-ogr

Noli
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread kimaidou
Hi again

I am coming back after more thinking :). I changed the subject into Go
Spatialite !

List of modifications which would help to use spatialite instead of
Shapefile as the default format :

* Create a new vector layer : should allow to choose between shapefile and
Spatialite. Let the use choose an existing spatialite connection or easily
create a new spatialite file and connection, and create a new table there.
* Tab fields, if the layer provider is spatialite :
 - add the ability to delete columns : currently it is not possible
 - add the ability to rename a column with the appropriate SQL command
- add the ability to change the type of a column when it is possible

* Tab General
 - add the ability to create/remove a spatial index for spatialite tables,
as QSpatialite does

* FTools and another vector processing tools :
 - add the ability to choose between shapefile and spatialite to create the
processed layers.

I think it would be a big break for QGIS if we facilitate more the use of
spatialite. I know it is already possible to achieve many things with
DBManager or QSpatialite, but we could help the users by letting them edit
spatialite tables without a dedicated tool.

Cheers

Michael


2012/11/26 kimaidou kimai...@gmail.com

 Hi Yves,

 I totally agree with you and Bary on the superiority of spatialite VS
 GeoJson considering performance, geoprocessing methods, capabilities, etc.
 But I am still not sure beginner would be comfortable enough using Sqlite
 to replace Shapefiles. I think they will be more comfortable with the idea
 to keep the one layer / one file architecture. They can off course use one
 sqlite file containing only one layer, so this question could be answered.

 But still, I think users should be able to use the Field tab of the
 layer properties dialog to easily edit the layer structure, not another
 dedicated tool in another QGIS menu (or plugin)
 We could probably find a way to use the tools of the Fields tab to modify
 the structure of the related sqlite table. This would help a lot people to
 use more the spatialite format, no ?

 I need more thinking :)

 Thanks all for your comments


 2012/11/26 Yves Jacolin (Free) yjaco...@free.fr

 Hello,

 I agreed with all you said, I am sure Spatialite format is the future of
 Geofile format:
 * easy to share (one file)
 * easy to use, edit
 * a lot of better capabities than Shapefile
 * use same OGC Standard as PostGIS does

 Y.
 Le lundi 26 novembre 2012 15:35:24 Barry Rowlingson a écrit :
  [apologies for empty previous message, I blame google for putting
  [...] next to 'Send'. This message has real content:
 
  On Mon, Nov 26, 2012 at 3:12 PM, kimaidou kimai...@gmail.com wrote:
   Hi list,
  
   The subject is a bit polemical, on purpose. I am used to playing with
   Postgis, spatialite and GeoJson, which are all open-source ways to
 store
   spatial data.
  
   I am very frustrated by the limitations of the Shapefile format, and
 much
   more by the quasi obligation to use it as the default vector format in
   QGIS. I mean for non power users who do not use PostGIS or spatialite.
 
   Why is spatialite seen as a power user option when ESRI users have
  been using something similar for years? Its just a file, you connect
  to it, you add spatial data to it.
 
   GeoJSON is always going to be pretty verbose unless you gzip it - I
  wouldn't want to use it for anything too big.
 
  Barry
  ___
  Qgis-developer mailing list
  Qgis-developer@lists.osgeo.org
  http://lists.osgeo.org/mailman/listinfo/qgis-developer



___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread Pēteris Brūns

Hi,
+1
This direction from my view is more correct course of action - make the 
use of spatialite more easy and ergonomic for users as it is now and in 
case of success it will be used more and more.


Regards,

On 2012.11.26. 18:35, kimaidou wrote:

Hi again

I am coming back after more thinking :). I changed the subject into Go 
Spatialite !


List of modifications which would help to use spatialite instead of 
Shapefile as the default format :


* Create a new vector layer : should allow to choose between shapefile 
and Spatialite. Let the use choose an existing spatialite connection 
or easily create a new spatialite file and connection, and create a 
new table there.

* Tab fields, if the layer provider is spatialite :
 - add the ability to delete columns : currently it is not possible
 - add the ability to rename a column with the appropriate SQL command
- add the ability to change the type of a column when it is possible

* Tab General
 - add the ability to create/remove a spatial index for spatialite 
tables, as QSpatialite does


* FTools and another vector processing tools :
 - add the ability to choose between shapefile and spatialite to 
create the processed layers.


I think it would be a big break for QGIS if we facilitate more the use 
of spatialite. I know it is already possible to achieve many things 
with DBManager or QSpatialite, but we could help the users by letting 
them edit spatialite tables without a dedicated tool.


Cheers

Michael


2012/11/26 kimaidou kimai...@gmail.com mailto:kimai...@gmail.com

Hi Yves,

I totally agree with you and Bary on the superiority of spatialite
VS GeoJson considering performance, geoprocessing methods,
capabilities, etc.
But I am still not sure beginner would be comfortable enough using
Sqlite to replace Shapefiles. I think they will be more
comfortable with the idea to keep the one layer / one file
architecture. They can off course use one sqlite file containing
only one layer, so this question could be answered.

But still, I think users should be able to use the Field tab of
the layer properties dialog to easily edit the layer structure,
not another dedicated tool in another QGIS menu (or plugin)
We could probably find a way to use the tools of the Fields tab to
modify the structure of the related sqlite table. This would help
a lot people to use more the spatialite format, no ?

I need more thinking :)

Thanks all for your comments


2012/11/26 Yves Jacolin (Free) yjaco...@free.fr
mailto:yjaco...@free.fr

Hello,

I agreed with all you said, I am sure Spatialite format is the
future of
Geofile format:
* easy to share (one file)
* easy to use, edit
* a lot of better capabities than Shapefile
* use same OGC Standard as PostGIS does

Y.
Le lundi 26 novembre 2012 15:35:24 Barry Rowlingson a écrit :
 [apologies for empty previous message, I blame google for
putting
 [...] next to 'Send'. This message has real content:

 On Mon, Nov 26, 2012 at 3:12 PM, kimaidou
kimai...@gmail.com mailto:kimai...@gmail.com wrote:
  Hi list,
 
  The subject is a bit polemical, on purpose. I am used to
playing with
  Postgis, spatialite and GeoJson, which are all open-source
ways to store
  spatial data.
 
  I am very frustrated by the limitations of the Shapefile
format, and much
  more by the quasi obligation to use it as the default
vector format in
  QGIS. I mean for non power users who do not use PostGIS or
spatialite.

  Why is spatialite seen as a power user option when ESRI
users have
 been using something similar for years? Its just a file, you
connect
 to it, you add spatial data to it.

  GeoJSON is always going to be pretty verbose unless you
gzip it - I
 wouldn't want to use it for anything too big.

 Barry
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
mailto:Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer





___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer



--
Pēteris Brūns
SunGIS
+371 26336691
p...@sungis.lv

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread Stefan Keller
Hi Michael

+1 from my part.

To me Spatialie is the shapefile of the future since 2010 (see e.g. FOSS4G)

Yours, Stefan


2012/11/26 Pēteris Brūns p...@sungis.lv:
 Hi,
 +1
 This direction from my view is more correct course of action - make the use
 of spatialite more easy and ergonomic for users as it is now and in case of
 success it will be used more and more.

 Regards,


 On 2012.11.26. 18:35, kimaidou wrote:

 Hi again

 I am coming back after more thinking :). I changed the subject into Go
 Spatialite !

 List of modifications which would help to use spatialite instead of
 Shapefile as the default format :

 * Create a new vector layer : should allow to choose between shapefile and
 Spatialite. Let the use choose an existing spatialite connection or easily
 create a new spatialite file and connection, and create a new table there.
 * Tab fields, if the layer provider is spatialite :
  - add the ability to delete columns : currently it is not possible
  - add the ability to rename a column with the appropriate SQL command
 - add the ability to change the type of a column when it is possible

 * Tab General
  - add the ability to create/remove a spatial index for spatialite tables,
 as QSpatialite does

 * FTools and another vector processing tools :
  - add the ability to choose between shapefile and spatialite to create the
 processed layers.

 I think it would be a big break for QGIS if we facilitate more the use of
 spatialite. I know it is already possible to achieve many things with
 DBManager or QSpatialite, but we could help the users by letting them edit
 spatialite tables without a dedicated tool.

 Cheers

 Michael


 2012/11/26 kimaidou kimai...@gmail.com

 Hi Yves,

 I totally agree with you and Bary on the superiority of spatialite VS
 GeoJson considering performance, geoprocessing methods, capabilities, etc.
 But I am still not sure beginner would be comfortable enough using Sqlite
 to replace Shapefiles. I think they will be more comfortable with the idea
 to keep the one layer / one file architecture. They can off course use one
 sqlite file containing only one layer, so this question could be answered.

 But still, I think users should be able to use the Field tab of the
 layer properties dialog to easily edit the layer structure, not another
 dedicated tool in another QGIS menu (or plugin)
 We could probably find a way to use the tools of the Fields tab to modify
 the structure of the related sqlite table. This would help a lot people to
 use more the spatialite format, no ?

 I need more thinking :)

 Thanks all for your comments


 2012/11/26 Yves Jacolin (Free) yjaco...@free.fr

 Hello,

 I agreed with all you said, I am sure Spatialite format is the future of
 Geofile format:
 * easy to share (one file)
 * easy to use, edit
 * a lot of better capabities than Shapefile
 * use same OGC Standard as PostGIS does

 Y.
 Le lundi 26 novembre 2012 15:35:24 Barry Rowlingson a écrit :
  [apologies for empty previous message, I blame google for putting
  [...] next to 'Send'. This message has real content:
 
  On Mon, Nov 26, 2012 at 3:12 PM, kimaidou kimai...@gmail.com wrote:
   Hi list,
  
   The subject is a bit polemical, on purpose. I am used to playing with
   Postgis, spatialite and GeoJson, which are all open-source ways to
   store
   spatial data.
  
   I am very frustrated by the limitations of the Shapefile format, and
   much
   more by the quasi obligation to use it as the default vector format
   in
   QGIS. I mean for non power users who do not use PostGIS or
   spatialite.
 
   Why is spatialite seen as a power user option when ESRI users have
  been using something similar for years? Its just a file, you connect
  to it, you add spatial data to it.
 
   GeoJSON is always going to be pretty verbose unless you gzip it - I
  wouldn't want to use it for anything too big.
 
  Barry
  ___
  Qgis-developer mailing list
  Qgis-developer@lists.osgeo.org
  http://lists.osgeo.org/mailman/listinfo/qgis-developer





 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer



 --
 Pēteris Brūns
 SunGIS
 +371 26336691
 p...@sungis.lv


 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread Thomas Gratier
Hello all,

+1 for Spatialite

You can also have a look on Geopackages announcement at OGC e.g
http://www.opengeospatial.org/pressroom/pressreleases/1710
It seems to be a future standard for geospatial data

Regards

ThomasG
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread haubourg
Hey +1 for me! I answered in the old post on GeoJSON. 
You pointed exactly what's missing now ! 




--
View this message in context: 
http://osgeo-org.1560.n6.nabble.com/Re-Get-rid-of-Shapefiles-Go-SpatiaLite-tp5018830p5018893.html
Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread Noli Sicad
Spatialite 4.0.0 was released yesterday. Sandro will update the
Spatialite QGIS data provider in the next few days to support
Spatialite 4.0.x.

Noli







On 11/27/12, haubourg regis.haubo...@eau-adour-garonne.fr wrote:
 Hey +1 for me! I answered in the old post on GeoJSON.
 You pointed exactly what's missing now !




 --
 View this message in context:
 http://osgeo-org.1560.n6.nabble.com/Re-Get-rid-of-Shapefiles-Go-SpatiaLite-tp5018830p5018893.html
 Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread Alister Hood
 Date: Mon, 26 Nov 2012 15:35:24 +
 From: Barry Rowlingson b.rowling...@lancaster.ac.uk
 ...
 
  I am very frustrated by the limitations of the Shapefile format, and much
  more by the quasi obligation to use it as the default vector format in QGIS.
  I mean for non power users who do not use PostGIS or spatialite.
 
  Why is spatialite seen as a power user option when ESRI users have
 been using something similar for years? Its just a file, you connect
 to it, you add spatial data to it.

Well, I think it IS a power user option as long as things output only to 
shapefile, after which the user needs to perform an extra step to import to 
spatialite.  This discussion on abstraction is good to see.

Users won't perform the extra step unless they have a motivation to do so.  
Personally I have only used spatialite a couple of times, when I needed to 
perform special queries.  And these queries are also very much for power 
users - the user isn't confronted by any documentation telling them about the 
cool stuff they can do (and how to do it), so people are most likely to do it 
only after googling to solve a particular problem.

If you don't need to run a special query or something, does spatialite have 
major benefits?  Do these need some publicity?
Things like the length of field names seem pretty minor to me...

And maybe this is a little off topic, but does anyone else have trouble with 
the implementation of spatialite in qgis?
In my experience it is very slow (takes 6 hours to save as or import a layer to 
spatialite, when ogr2ogr takes less than 5 minutes), and tends to be 
accompanied by a series of frightening error/warning messages.

Regards,
Alister
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread Paolo Cavallini
On Mon, 26 Nov 2012 23:56:30 +0100, Bernd Vogelgesang
bernd.vogelges...@gmx.de wrote:

 You just should not use Qspatialite to import shapes. I nearly gave up  
 upon spatialite, when i figured out that i had to use the Spatialite GUI

 instead and this was fast as hell.

Why not using DB Manager?

 So at the moment, you have to work with Spatialite GUI to import shapes,


I do not think users like to switch between different programs.

All the best.
-- 
Paolo Cavallini - Faunalia
www.faunalia.eu
Full contact details at www.faunalia.eu/pc
___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer


Re: [Qgis-developer] Get rid of Shapefiles ! Go SpatiaLite !

2012-11-26 Thread G. Allegri
Just a note on the difficulty of Spatialite rather then shapefiles.
I often work with commercial softwares, and most of thems let the user work
seamlessly with local geodatabases (many of them use the MDB format), and I
see it's not so strange for GIS users to use them rather then shapefiles to
organize and share their data.
The OS version of this kind of data management would naturally be
Spatialite.

giovanni

2012/11/27 Paolo Cavallini cavall...@faunalia.it

 On Mon, 26 Nov 2012 23:56:30 +0100, Bernd Vogelgesang
 bernd.vogelges...@gmx.de wrote:

  You just should not use Qspatialite to import shapes. I nearly gave up
  upon spatialite, when i figured out that i had to use the Spatialite GUI

  instead and this was fast as hell.

 Why not using DB Manager?

  So at the moment, you have to work with Spatialite GUI to import shapes,


 I do not think users like to switch between different programs.

 All the best.
 --
 Paolo Cavallini - Faunalia
 www.faunalia.eu
 Full contact details at www.faunalia.eu/pc
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
 http://lists.osgeo.org/mailman/listinfo/qgis-developer

___
Qgis-developer mailing list
Qgis-developer@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-developer