Hello users/developers,
I'd like to query for the current status of the 3D
characteristics/features/capabilities/objects implementation... Are
they finally usable? All the documentation I found is
"[...]
* face: a 3D area
* kernel: a 3D centroid in a volume (not yet implemented)
* volume: a 3D corpus (not yet implemented)"
"[...] Face and kernel are 3D equivalents of boundary and centroid,
but there is no support (yet) for 3D topology (volumes). The only
current use of face is possibility to display vertical planes in
NVIZ."
but I prefer confirmation that this is not a problem linked to
outdated documentation. In fact, searching for references to these
objects in the source code (CVS feb 20th, 2006) throws me a few
references:
$ find . -name "*.[ch]" -exec grep GV_VOLUME {} \; | wc -l
5
$ find . -name "*.[ch]" -exec grep GV_KERNEL {} \; | wc -l
23
$ find . -name "*.[ch]" -exec grep GV_FACE {} \; | wc -l
34
Finally, is there any roadmap where the approximate data/versions for
the future GRASS capabilities could be looked?
Thanks in advance,
M.
--
-- marcos boullón magán
Hi Marcos,
On Thu, Feb 23, 2006 at 11:17:47AM +0100, marcos boullón magán wrote:
Hello users/developers,
I'd like to query for the current status of the 3D
characteristics/features/capabilities/objects implementation... Are
they finally usable? All the documentation I found is
"[...]
* face: a 3D area
* kernel: a 3D centroid in a volume (not yet implemented)
* volume: a 3D corpus (not yet implemented)"
"[...] Face and kernel are 3D equivalents of boundary and centroid,
but there is no support (yet) for 3D topology (volumes). The only
current use of face is possibility to display vertical planes in
NVIZ."
There is more meanwhile:
- It's also used by v.extrude [1].
- I have added faces support to v.out.vtk yesterday.
but I prefer confirmation that this is not a problem linked to
outdated documentation.
Would you mind to tell us where you found it so that we can
update? In fact it's not too outdated, but could be written
a bit better.
In fact, searching for references to these
objects in the source code (CVS feb 20th, 2006) throws me a few
references:
$ find . -name "*.[ch]" -exec grep GV_VOLUME {} \; | wc -l
5
$ find . -name "*.[ch]" -exec grep GV_KERNEL {} \; | wc -l
23
$ find . -name "*.[ch]" -exec grep GV_FACE {} \; | wc -l
34
AFAIK only GV_FACE is really used.
Finally, is there any roadmap where the approximate data/versions for
the future GRASS capabilities could be looked?
Yes:
http://grass.itc.it//devel/roadmap.php
Additionally:
- get grassuser mailing list from Baylor to grass.itc.it
(to have all main lists here)
- discuss and use CMS (content management system) for GRASS
web site to enable more people to contribute
- form GRASS Project Steering Commitee in order to formalize
the development team
- discuss and get GRASS into OSGeo Foundation incubator
- have more GRASS meetings or GRASS hacking sessions 
Markus
[1] http://grass.itc.it/grass60/screenshots/index.php
(this should go into grass61 screenshots btw)
2006/2/28, Markus Neteler <neteler@itc.it>:
Hi Marcos,
On Thu, Feb 23, 2006 at 11:17:47AM +0100, marcos boullón magán wrote:
> Hello users/developers,
>
> I'd like to query for the current status of the 3D
> characteristics/features/capabilities/objects implementation... Are
> they finally usable? All the documentation I found is
[...]
> but I prefer confirmation that this is not a problem linked to
> outdated documentation.
Would you mind to tell us where you found it so that we can
update? In fact it's not too outdated, but could be written
a bit better.
No problem. In the CVS contents on March 1st, I can find it in file
grass6/lib/vector/html/index.html, section "Vector library Topology
management", subsection "topo file format". Starting with "[detailed
docs missing]", the full information on 3D is one sentence long:
"Face and kernel are 3D equivalents of boundary and centroid, but
there is no support (yet) for 3D topology (volumes). The only current
use of face is possibility to display vertical planes in NVIZ."
Marcos
--
-- marcos boullón magán
marcos boullón magán wrote:
2006/2/28, Markus Neteler <neteler@itc.it>:
Hi Marcos,
On Thu, Feb 23, 2006 at 11:17:47AM +0100, marcos boullón magán wrote:
Hello users/developers,
I'd like to query for the current status of the 3D
characteristics/features/capabilities/objects implementation... Are
they finally usable? All the documentation I found is
[...]
but I prefer confirmation that this is not a problem linked to
outdated documentation.
Would you mind to tell us where you found it so that we can
update? In fact it's not too outdated, but could be written
a bit better.
No problem. In the CVS contents on March 1st, I can find it in file
grass6/lib/vector/html/index.html, section "Vector library Topology
management", subsection "topo file format". Starting with "[detailed
docs missing]", the full information on 3D is one sentence long:
"Face and kernel are 3D equivalents of boundary and centroid, but
there is no support (yet) for 3D topology (volumes). The only current
use of face is possibility to display vertical planes in NVIZ."
Marcos,
I have changed that to:
Face and kernel are 3D equivalents of boundary and centroid, but there
-is no support (yet) for 3D topology (volumes). The only current use of
-face is possibility to display vertical planes in NVIZ.
+is no support (yet) for 3D topology (volumes). Faces are used in a
+couple of modules including NVIZ to visualize 3D buildings and other
+volumetric figures.
More text is obviously desired...
markus