Hi all,
I’d like to put a boundary/centroid - into 3D with v.to.3d.
Command: v.to.3d --overwrite input=l_00004_buf_diss@Duna output=l_00004_buf_diss_3d height=110
I runs without major erro, however writes this:
v.to.3d --overwrite input=l_00004_buf_diss@Duna output=l_00004_buf_diss_3d height=110
WARNING: Vector map <l_00004_buf_diss_3d> already exists and will be overwritten
Transforming features…
Copying attributes…
Building topology for vector map l_00004_buf_diss_3d@Duna…
Registering primitives…
One primitive registered
One vertex registered
Building areas…
0 areas built
0 isles built
Attaching islands…
Attaching centroids…
Number of nodes: 0
Number of primitives: 1
Number of points: 0
Number of lines: 0
Number of boundaries: 0
Number of centroids: 1
Number of areas: 0
Number of isles: 0
WARNING: Number of centroids exceeds number of areas: 1 > 0
WARNING: Number of centroids outside area: 1
Vertical extent of vector map <l_00004_buf_diss_3d>: B: 110.000000 T: 110.000000
the original vector map is this:
| Map format: native |
| Type of map: vector (level: 2) |
|
| Number of points: 0 Number of centroids: 1 |
| Number of lines: 0 Number of boundaries: 198 |
| Number of areas: 1 Number of islands: 1 |
|
| Map is 3D: No |
| Number of dblinks: 0 |
|
So, it seems that my area (boundaries) disappear during the conversion…
Topology is correct… what is the problem?
GRASS version info:
GRASS 7.0.3 (2016)
./configure --prefix=/opt/grass --with-freetype-includes=/usr/include/freetype2 --with-wxwidgets --with-readline --with-pthread --with-netcdf --with-nls --with-geos --with-postgres --with-liblas
libgis Revision: 67364
libgis Date: 2015-12-24 16:07:44 +0100 (Thu, 24 Dec 2015)
PROJ.4: 4.9.2
GDAL/OGR: 2.0.2
GEOS: 3.5.0
SQLite: 3.12.1
Thanks
Robert
(attachments)
Hi,
2016-06-06 10:00 GMT+02:00 Robert Kuszinger <kuszinger@giscom.hu>:
Command: v.to.3d --overwrite input=l_00004_buf_diss@Duna
output=l_00004_buf_diss_3d height=110
try to append `layer=-1`. Martin
--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa
Hi,
2016-06-06 11:30 GMT+02:00 Robert Kuszinger <kuszinger@giscom.hu>:
thanks... it works now... hmm on GUI it was set to layer=1 (where all the
goodies are) but now it works with =-1.
Is it a default handling error in v.to.3d?
Anyway, your workaround helped a lot and thanks for that 
that's the way how the most vector modules behave. The features
without category are skipped. The module should print at least warning
about skipped feature and suggest workaround (layer=-1). Feel free to
report it as a new ticket.
Martin
--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa
On Mon, Jun 6, 2016 at 11:36 AM, Martin Landa <landa.martin@gmail.com> wrote:
Hi,
2016-06-06 11:30 GMT+02:00 Robert Kuszinger <kuszinger@giscom.hu>:
thanks... it works now... hmm on GUI it was set to layer=1 (where all the
goodies are) but now it works with =-1.
Is it a default handling error in v.to.3d?
Anyway, your workaround helped a lot and thanks for that
that's the way how the most vector modules behave. The features
without category are skipped.
I would suggest to add type=area to the recognized type options of
v.to3d and make the default answer type=point,line,area. This way
boundaries without category can be automatically pulled in if they
belong to an area with a category in the selected layer. Code to do
this exists in many other modules, e.g. v.extract.
The module should print at least warning
about skipped feature and suggest workaround (layer=-1). Feel free to
report it as a new ticket.
Martin
--
Martin Landa
http://geo.fsv.cvut.cz/gwiki/Landa
http://gismentors.cz/mentors/landa
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