[GRASS-user] grass 7.2 3D voxel display - first time issues

[Robert Kuszinger]

Hi all,

It seem I'm not able to see my beloved voxel model. This is my first
experiment.

Input: raster layers generated from vector and I made them a voxel.
Result raster 3d metadata is at the end of this message. Also region in
which it was created.
My rasters serving as base seem to be ok (I displayed them as raster
surfaces in 3D display mode, only a few of them to check, image attached).

What to do to make them visible?

I've tried isosurface and played around with slices but I'm not able to see
anything.
2D mode shows nothing. Map extent, location is ok...
I just can't figure out what is missing. Color table for 3D raster is blue
only (values from -1000 to 1000 set to blue, nv=white)

thanks
Robert



g.region
-p3
projection: 99 (Swiss. Obl. Mercator)
zone:       0
datum:      ** unknown (default: WGS84) **
ellipsoid:  grs67
north:      267188.884502
south:      266707.900494
west:       656852.944339
east:       657580.707724
top:        352.00000000
bottom:     102.00000000
nsres:      10.02050017
nsres3:     10.02050017
ewres:      9.96936144
ewres3:     9.96936144
tbres:      10
rows:       48
rows3:      48
cols:       73
cols3:      73
depths:     25
cells:      3504
cells3:     87600

r3.info map=3dtest at Duna

 +----------------------------------------------------------------------------+
 | Layer:    3dtest at Duna                    Date: Tue Jun  7 14:19:11
2016    |
 | Mapset:   Duna                           Login of Creator:
kuszi           |
 | Location:
HungaryEOV                                                       |
 | DataBase:
/home/kuszi/grassdata                                            |
 | Title:
3dtest                                                           |
 | Units:
none                                                             |
 | Vertical unit:
units                                                       |
 | Timestamp:
none                                                            |
 |----------------------------------------------------------------------------|
 |
|
 |   Type of Map:  raster_3d            Number of Categories:
0               |
 |   Data Type:
DCELL                                                      |
 |   Rows:
48                                                         |
 |   Columns:
73                                                         |
 |   Depths:
25                                                         |
 |   Total Cells:
87600                                                      |
 |   Total size:           43442
Bytes                                        |
 |   Number of tiles:
27                                                 |
 |   Mean tile size:       1608
Bytes                                         |
 |   Tile size in memory:  28800
Bytes                                        |
 |   Number of tiles in x, y and  z:   3, 3,
3                                |
 |   Dimension of a tile in x, y, z:   25, 16,
9                              |
 |
|
 |        Projection: Swiss. Obl. Mercator (zone
0)                           |
 |            N: 267188.884502    S: 266707.900494   Res:
10.02050017         |
 |            E: 657580.707724    W: 656852.944339   Res:
9.96936144          |
 |            T:        352    B:        102   Res:
10                     |
 |   Range of data:   min =          1 max =
25                       |
 |
|
 |   Data
Source:                                                             |
 |
|
 |
|
 |
|
 |   Data
Description:                                                        |
 |    generated by
r.to.rast3                                                 |
 |
|
 |
Comments:                                                                |
 |    r.to.rast3 --overwrite
input="l_00001_buf_diss,l_00002_buf_diss,l_00\   |
 |
003_buf_diss,l_00004_buf_diss,l_00005_buf_diss,l_00006_buf_diss,l_00\   |
 |
007_buf_diss,l_00008_buf_diss,l_00009_buf_diss,l_00010_buf_diss,l_00\   |
 |
011_buf_diss,l_00012_buf_diss,l_00013_buf_diss,l_00014_buf_diss,l_00\   |
 |
015_buf_diss,l_00016_buf_diss,l_00017_buf_diss,l_00018_buf_diss,l_00\   |
 |
019_buf_diss,l_00020_buf_diss,l_00021_buf_diss,l_00022_buf_diss,l_00\   |
 |    023_buf_diss,l_00024_buf_diss,l_00025_buf_diss" output="3dtest"
tile\   |
 |
size=32                                                                 |
 |
|
 +----------------------------------------------------------------------------+
*VERSION INFO:*
GRASS 7.2.svn (2016)
 ./configure  --prefix=/opt --exec_prefix=/opt/grass72
--with-freetype-includes=/usr/include/freetype2 --with-blas --with-lapack
--with-geos --with-liblas --with-nls --with-netcdf --with-odbc
--with-openmp --with-pthread --with-postgres
--with-python=/usr/bin/python2-config --with-readline
--with-wxwidgets=/usr/bin/wx-config-2.8
libgis Revision: 67364
libgis Date: 2015-12-24 07:07:44 -0800 (Thu, 24 Dec 2015)
PROJ.4: 4.9.2
GDAL/OGR: 2.1.0
GEOS: 3.5.0
SQLite: 3.13.0
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