[GRASS-user] Grass Compatibility withOpenGL

GRASS GRASS user
1

Hi!
I need to develop the code that display the Raster & Vector Image on OpenGL enviornment.
I want to know how Grass/mapserver works with OpenGL???
from where i could get the sample program or API for Application on Grass/Mapserver + OpenGL .???

–
Thanks & Regards

Kunal Malik
09871147561

2

All information You need is located here:
http://grass.osgeo.org/devel/index.php#prog
http://trac.osgeo.org/grass/wiki/DownloadSource
http://mapserver.gis.umn.edu/docs
http://trac.osgeo.org/mapserver/browser

Still if within one week You have not found time to understand how
GRASS and Mapserver works and where to get information about them, I
seriously doubt about Your ability to write such thing You describe.
Maybee You should pay for some real coders instead.

WBR,
Maris.

2008/2/26, Kunal Malik <kunal.malik81@gmail.com>:

Hi!
I need to develop the code that display the Raster & Vector Image on
OpenGL enviornment.
I want to know how Grass/mapserver works with OpenGL???
from where i could get the sample program or API for Application on
Grass/Mapserver + OpenGL .???

--
Thanks & Regards

Kunal Malik
09871147561

3

I was looking for the docs from the development point of view…most of document avaliable on the net speaks about using grass from the administrative point of view for display by CLI or from GUI…which i have alreay done…

these doc’s don’t solve my purpose…
Again the that link u send me…are same as i was talking above…
I want Grass/MapSrver + opengl API in C/C++…
I hope now got it…wat i want to say.

On 2/26/08, Maris Nartiss <maris.gis@gmail.com> wrote:

All information You need is located here:
http://grass.osgeo.org/devel/index.php#prog
http://trac.osgeo.org/grass/wiki/DownloadSource
http://mapserver.gis.umn.edu/docs
http://trac.osgeo.org/mapserver/browser

Still if within one week You have not found time to understand how
GRASS and Mapserver works and where to get information about them, I
seriously doubt about Your ability to write such thing You describe.
Maybee You should pay for some real coders instead.

WBR,
Maris.

2008/2/26, Kunal Malik <kunal.malik81@gmail.com>:

Hi!
I need to develop the code that display the Raster & Vector Image on
OpenGL enviornment.
I want to know how Grass/mapserver works with OpenGL???
from where i could get the sample program or API for Application on
Grass/Mapserver + OpenGL .???

–
Thanks & Regards

Kunal Malik
09871147561

–
Thanks & Regards

Kunal Malik
09871147561

4

Hi,
grass does not work with opengl (yet).

jachym

Kunal Malik píše v Út 26. 02. 2008 v 11:55 +0530:

Hi!
I need to develop the code that display the Raster & Vector Image on
OpenGL enviornment.
I want to know how Grass/mapserver works with OpenGL???
from where i could get the sample program or API for Application on
Grass/Mapserver + OpenGL .???

--
Thanks & Regards

Kunal Malik
09871147561

--
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub

5

HI,
Jachym …would u tell me how u came to know this,have u worked on this,or read from somewhere …i want to know it beacause i am working on grass tool,& i have to integrate it with OpenGl Display…will u eleborate more on this.

On 2/26/08, Jachym Cepicky <jachym.cepicky@gmail.com> wrote:

Hi,
grass does not work with opengl (yet).

jachym

Kunal Malik píše v Út 26. 02. 2008 v 11:55 +0530:

Hi!
I need to develop the code that display the Raster & Vector Image on
OpenGL enviornment.
I want to know how Grass/mapserver works with OpenGL???
from where i could get the sample program or API for Application on
Grass/Mapserver + OpenGL .???

–
Thanks & Regards

Kunal Malik
09871147561

–
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub

–
Thanks & Regards

Kunal Malik
09871147561

6

hi,

Kunal Malik píše v Út 26. 02. 2008 v 13:08 +0530:

HI,
Jachym ..would u tell me how u came to know this,have u worked on
this,or read from somewhere ..i want to know it beacause i am working
on grass tool,& i have to integrate it with OpenGl Display..will u
eleborate more on this.

I simply know it. Last time, there was discussion about integrating
opengl capabilities into new GRASS wxPython gui [1]. You can always
download the GRASS source code [2,3] and join the development, see
directory gui/wxpython in grass_trunk directory.

looking forward to see your patches

jachym

[1] http://grass.gdf-hannover.de/wiki/WxPython-based_GUI_for_GRASS
[2] http://grass.osgeo.org/download/index.php
[3] http://trac.osgeo.org/grass/browser/grass/trunk

On 2/26/08, Jachym Cepicky <jachym.cepicky@gmail.com> wrote:
        Hi,
        grass does not work with opengl (yet).
        
        jachym
        
        Kunal Malik píše v Út 26. 02. 2008 v 11:55 +0530:
        
        >
        > Hi!
        > I need to develop the code that display the Raster &
        Vector Image on
        > OpenGL enviornment.
        > I want to know how Grass/mapserver works with OpenGL???
        > from where i could get the sample program or API for
        Application on
        > Grass/Mapserver + OpenGL .???
        >
        > --
        > Thanks & Regards
        >
        > Kunal Malik
        > 09871147561
        
        --
        Jachym Cepicky
        e-mail: jachym.cepicky gmail com
        URL: http://les-ejk.cz
        GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub
        
--
Thanks & Regards

Kunal Malik
09871147561

--
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub

7

On Tue, 26 Feb 2008, Jachym Cepicky wrote:

hi,

Kunal Malik píÿÿe v Út 26. 02. 2008 v 13:08 +0530:

HI,
Jachym ..would u tell me how u came to know this,have u worked on
this,or read from somewhere ..i want to know it beacause i am working
on grass tool,& i have to integrate it with OpenGl Display..will u
eleborate more on this.

I simply know it. Last time, there was discussion about integrating

That's not strictly true. GRASS has a whole library of code for reading GRASS datasets and visualizing them using OpenGL - see lib/ogsf in the sourcecode, especially the README file which summarises things. This code is currently used by NVIZ. I've said in the past I would like to try and write some command-line modules that interface to it to enable scriptable generation of 3-D images, rather than having to use the Tcl/Tk NVIZ GUI, but as with most things I've never had time to look into it. The code is very old (15 years - GRASS was simply years ahead of its time when all this stuff was first implemented) but I don't see why it shouldn't be a good basis for further work.

Paul

8

HI Jachym !
wat do u suggest after the Paul Views about the Grass compatiblilty with OpenGl.

On 2/26/08, Paul Kelly <paul-grass@stjohnspoint.co.uk> wrote:

On Tue, 26 Feb 2008, Jachym Cepicky wrote:

hi,

Kunal Malik píÿÿe v Út 26. 02. 2008 v 13:08 +0530:

HI,
Jachym …would u tell me how u came to know this,have u worked on
this,or read from somewhere …i want to know it beacause i am working
on grass tool,& i have to integrate it with OpenGl Display…will u
eleborate more on this.

I simply know it. Last time, there was discussion about integrating

That’s not strictly true. GRASS has a whole library of code for reading
GRASS datasets and visualizing them using OpenGL - see lib/ogsf in the
sourcecode, especially the README file which summarises things. This code
is currently used by NVIZ. I’ve said in the past I would like to try and
write some command-line modules that interface to it to enable scriptable
generation of 3-D images, rather than having to use the Tcl/Tk NVIZ GUI,
but as with most things I’ve never had time to look into it. The code is
very old (15 years - GRASS was simply years ahead of its time when all
this stuff was first implemented) but I don’t see why it shouldn’t be a
good basis for further work.

Paul

–
Thanks & Regards

Kunal Malik
09871147561

9

hi,

Paul Kelly píše v Út 26. 02. 2008 v 09:51 +0000:

On Tue, 26 Feb 2008, Jachym Cepicky wrote:
>
> I simply know it. Last time, there was discussion about integrating

That's not strictly true. GRASS has a whole library of code for reading
GRASS datasets and visualizing them using OpenGL - see lib/ogsf in the
sourcecode, especially the README file which summarises things. This code
is currently used by NVIZ. I've said in the past I would like to try and
write some command-line modules that interface to it to enable scriptable
generation of 3-D images, rather than having to use the Tcl/Tk NVIZ GUI,
but as with most things I've never had time to look into it. The code is
very old (15 years - GRASS was simply years ahead of its time when all
this stuff was first implemented) but I don't see why it shouldn't be a
good basis for further work.

Paul

Oh, thanks. Sorry for the confusion. Next time, I'll have to check more
detaily.

Jachym
--
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub

10

Kunal Malik píše v Út 26. 02. 2008 v 15:32 +0530:

HI Jachym !
wat do u suggest after the Paul Views about the Grass compatiblilty
with OpenGl.

go ahead

jachym

On 2/26/08, Paul Kelly <paul-grass@stjohnspoint.co.uk> wrote:
        On Tue, 26 Feb 2008, Jachym Cepicky wrote:
        
        >
        > hi,
        >
        > Kunal Malik píÿÿe v Út 26. 02. 2008 v 13:08 +0530:
        
        >>
        >> HI,
        >> Jachym ..would u tell me how u came to know this,have u
        worked on
        >> this,or read from somewhere ..i want to know it beacause i
        am working
        >> on grass tool,& i have to integrate it with OpenGl
        Display..will u
        >> eleborate more on this.
        >
        > I simply know it. Last time, there was discussion about
        integrating
        
        That's not strictly true. GRASS has a whole library of code
        for reading
        GRASS datasets and visualizing them using OpenGL - see
        lib/ogsf in the
        sourcecode, especially the README file which summarises
        things. This code
        is currently used by NVIZ. I've said in the past I would like
        to try and
        write some command-line modules that interface to it to enable
        scriptable
        generation of 3-D images, rather than having to use the Tcl/Tk
        NVIZ GUI,
        but as with most things I've never had time to look into it.
        The code is
        very old (15 years - GRASS was simply years ahead of its time
        when all
        this stuff was first implemented) but I don't see why it
        shouldn't be a
        good basis for further work.
        
        Paul

--
Thanks & Regards

Kunal Malik
09871147561

--
Jachym Cepicky
e-mail: jachym.cepicky gmail com
URL: http://les-ejk.cz
GPG: http://www.les-ejk.cz/pgp/jachym_cepicky-gpg.pub