[GRASS-user] v.in.ply - GRASS7

GRASS GRASS user
1

Hello,

I’m a user of GRASS7 in UBUNTU 12.04.

I tried to import a PLY File to a GRASS vector points cloud - “cat2.ply”.

v.in.ply input=/home/xxxx/cat2.ply output=cat2xyz
Load:
ply
format ascii 1.0
comment GRASS GIS generated
element vertex 8139
property float x
property float y
property float z
element face 0
property list uchar int vertex_indices
end_header
-96808.46704 -99911.92501 140.613663
-96808.25806 -99912.06045 140.449142
-96597.86902 -99913.83076 146.655823
-96599.28461 -99913.11427 146.4449
-96599.08022 -99913.21988 146.298218
…

FIRST PROBLEM in results: Only appears the column “Cat” in the table attributes of cat2xyz. But, within the GRASS6.4.2 this action writing the columns x,y,z.
…

So, I repeat this action with the following statement : v.in.ply input=/home/xxxxx/cat2.ply output=cat2xyz_v1 x=4 y=5 z=6

cat2xyz_v1: The four columns cat,x,y,z in results. But, the GRASS vector missed the region parameters…
v.info -g map=cat2xyz_v1@PERMANENT
north=0
south=0
east=0
west=0
top=0.000000
bottom=0.000000

I would like to get a correct file with the x,y,z coordinates. Is there any solution for this?

Thanks a lot.

Best regards,

Carla

2

On Mon, May 6, 2013 at 1:14 AM, Carla Rebelo <crrebelo@gmail.com> wrote:

Hello,

I'm a user of GRASS7 in UBUNTU 12.04.

I tried to import a PLY File to a GRASS vector points cloud - "cat2.ply".
v.in.ply input=/home/xxxx/cat2.ply output=cat2xyz
Load:
ply
format ascii 1.0
comment GRASS GIS generated
element vertex 8139
property float x
property float y
property float z
element face 0
property list uchar int vertex_indices
end_header
-96808.46704 -99911.92501 140.613663
-96808.25806 -99912.06045 140.449142
-96597.86902 -99913.83076 146.655823
-96599.28461 -99913.11427 146.4449
-96599.08022 -99913.21988 146.298218
.................

FIRST PROBLEM in results: Only appears the column "Cat" in the table
attributes of cat2xyz. But, within the GRASS6.4.2 this action writing the
columns x,y,z.

If you want the coordinates also in the table, you can upload
coordinates with v.to.db.

v.in.ply for GRASS 7 is designed for large point clouds with the
possibility to have only coordinates, no attribute table (for speed
reasons).

................................................................................................

So, I repeat this action with the following statement : v.in.ply
input=/home/xxxxx/cat2.ply output=cat2xyz_v1 x=4 y=5 z=6

cat2xyz_v1: The four columns cat,x,y,z in results. But, the GRASS vector
missed the region parameters...

Because of x=4 y=5 z=6. The default x=1 y=2 z=3 should work just fine, i.e. just
v.in.ply input=/home/xxxxx/cat2.ply output=cat2xyz_v1

Markus M

v.info -g map=cat2xyz_v1@PERMANENT
north=0
south=0
east=0
west=0
top=0.000000
bottom=0.000000

I would like to get a correct file with the x,y,z coordinates. Is there any
solution for this?

Thanks a lot.

Best regards,
Carla

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