Grass Pluggin

[Fuzz]

Hi, I've just downloaded QGis, and watched the flash lesson, showing the GRASS pluggin. Where can I download this, or is it included? I don't see it in the pluggin list. My other suspicion is that it is not compatable with the Windows version. Can anyone confirm?

[ken_smitty]

I am almost 100% certain that you need to have GRASS installed to run the GRASS plugin. This turns qgis into a nice front end for GRASS. I usually open qgis from the command line in GRASS, and can access the GRASS data and use the plugin. I am only familiar with it on linux, you may be able to use this with GRASS on cygwin for a windows pc.


>

Hi, I've just downloaded QGis, and watched the flash lesson, >showing the GRASS pluggin. Where can I download this, or is it included? I >don't see it in the pluggin list. My other suspicion is that it is not >compatable with the Windows version. Can anyone confirm?

[TomZ]

Hhm, I'm also not sure about that ... I installed QGIS 0.7.4 as DEB-file on Debian Sarge, also GRASS is installed, but there seems to be no GRASS-plugin?? What should I do to activate it?

Thanks!

[Fuzz]

I do have GRASS installed and running through Cygwin. From there, I'm not sure where to go with QGIS.

[lubaby]

Hi Fuzz!
You didn't noticed what version of QGIS have you downloaded. There is no working GRASS plugin for QGIS 0.7.4 and older (it is available only for Linux).
New upcoming 0.8.0 release includes GRASS support also in WINDOWS version. There is no CYGWIN required, it is based on native GRASS for WINDOWS (which should be included). You can download testing preview of 0.8.0 from http://download.qgis.org/qgis/.

[lubaby]

Hi TomZ!
You should install also package qgis_debian_-plugin-grass_0.7.4_i386.deb which contains GRASS support (GRASS plugin). You can download it from http://prdownloads.sourceforge.net/qgis/qgis_debian_-plugin-grass_0.7.4_i386.deb?download

Hhm, I'm also not sure about that ... I installed QGIS 0.7.4 as DEB-file on Debian Sarge, also GRASS is installed, but there seems to be no GRASS-plugin?? What should I do to activate it?

Thanks!

[Fuzz]

Thanks, I'll give that a try. And I didn't even know there was a native windows version of GRASS available, I've been using Cygwin GRASS for a few years, and once I got it stable, hadn't realy looked into it.

[oliver]

Hi, developers

I noticed that adding GRASS raster layer doesn't work, while adding GRASS vector layer works. I watched a QGIS source code a bit, and I noticed that QgsGrassProvider class provides only GRASS vectors.

Is there GRASS raster layer provider for QGIS implemented? Where is it implemented? If not - may I develop grass raster layer provider for qgis , e.g. QgsGrassRasterProvider class derivating from QgsRasterDataProvider?

I maybe don't know news, but I have only qgis8.0_preview2 version.. where I can download current develop version of qgis?

Vytautas Oliver

[wonder_sk]

Is there GRASS raster layer provider for QGIS implemented? Where is it implemented? If not - may I develop grass raster layer provider for qgis , e.g. QgsGrassRasterProvider class derivating from QgsRasterDataProvider?

GRASS raster layers are loaded using GDAL library, therefore you need to have compiled support for GRASS in GDAL library. Currently providers are used just for vector layers (well, wms provider is an exception) because provider interface for raster providers is not yet developed well.

[lubaby]

I maybe don't know news, but I have only qgis8.0_preview2 version.. where I can download current develop version of qgis?
Vytautas Oliver

You can download current developer using svn (subversion). For more info see notes at http://qgis.org/index.php?option=com_co ... &Itemid=71

[StevenB]

Where can I get the GRASS Plugin for v.8 Preview 2?
Thanks!

[lubaby]

GRASS plugin is already included in 0.8.0 Preview 2 (available from
http://qgis.org/index.php?option=com_co ... &Itemid=65). You have to enable GRASS plugin in Plugin Manager (in Plugins menu) to get it to work.

[StevenB]

I'm on Linux (Ubuntu Dapper), so the grass plugin is a seperate package. It doesn't show up when I open the plugin manager.

[StevenB]

.debs for the grass plugin on Dapper are here: http://qgis.org/uploadfiles/ubuntu_dapper/

[hcgrant]

Is there GRASS raster layer provider for QGIS implemented? Where is it implemented? If not - may I develop grass raster layer provider for qgis , e.g. QgsGrassRasterProvider class derivating from QgsRasterDataProvider?

GRASS raster layers are loaded using GDAL library, therefore you need to have compiled support for GRASS in GDAL library. Currently providers are used just for vector layers (well, wms provider is an exception) because provider interface for raster providers is not yet developed well.

Can you explain what you mean? I cant get GRASS raster layers (From the Spearfish60 dataset) to load just like wonder_sk. I set up QGIS from the following RPMS :

gdal-1.3.2-1suse10.2.i586.rpm
gdal-grass-1.3.2-1suse10.2.i586.rpm
geos-2.2.3-1suse10.2.i586.rpm
grass-6.2.1-1suse10.2.i586.rpm
Grass-install-ins
grasslogo_vector_small.png
proj-4.5.0-2suse10.2.i586.rpm
qgis-0.8.0-2suse10.2.i586.rpm

Using the QGIS icon "open raster" I can see the GRASS raster files but QGIS wont open them - get error message "/home/hcgrant/gisdb/spearfish60/PERMANENT/cell/elevation.10m is not a supported raster data source"

I have QGIS on suse10.2

So how do I use the GDAL lib to load GRASS rasters?
I'm very much a newbie at this and would welcome any help

HCG


Edit 6/feb/2007 The lack of raster support in 0.8 is a defect . see - https://svn.qgis.org/trac/ticket/423
HCG