I have a simple question related with r.in.xyz:
When I import a ASCII file I do this:
r.in.xyz input="C:\Test_areas\graphbased\filev2" output="v2@PERMANENT"
But in the metadata I get the following:
- number of categories: 255 => Why is this? I haven't set
anything
that's simply a function of what's present in your input data.
for floating point values it will just be the next highest
integer beyond the maximum data value and can be ignored.
see also the output of r.univar and the display histogram tool.
- and in the r.info v2 I get a command slightly different from
the one I typed:
r.in.xyz input="C:\Test_areas\graphbased\saidav2" \
output="v2@PERMANENT" method="mean" type="FCELL" fs=" " \
x=1 y=2 z=3 zscale=1.0 percent=100
Why?
it's the same thing, just that the default options have been
explicitly, instead of implicitly, listed.
output= should not be given an @mapset part, as output is
always in the current mapset.
I have a problem exporting a TIN using v.out.vtk
When the vtk file is done inside paraview I have problem because the
North Coordinates are bigger than 1000000 so i tried to use the -c flag
but the vtk I have as output seem to the the same I have without -c flag
that’s simply a function of what’s present in your input data.
for floating point values it will just be the next highest
integer beyond the maximum data value and can be ignored.
Uhm but it has to do with the “number of categores”? It’s used for Histogram only?
see also the output of r.univar and the display histogram tool.
Ok r.univar is ok (I guess).
and in the r.info v2 I get a command slightly different from
the one I typed:
r.in.xyz input=“C:\Test_areas\graphbased\saidav2”
output=“v2@PERMANENT” method=“mean” type=“FCELL” fs=" "
x=1 y=2 z=3 zscale=1.0 percent=100
Why?
In your r.in.xyz the input file is named filev2 while in the r.info
command it says input is named saidav2. Is that what you mean by
different?
Daniel
On Tue, Oct 19, 2010 at 6:15 AM, Franz Schiller
<franzschiller1975@gmail.com> wrote:
Hi Hamish
that's simply a function of what's present in your input data.
for floating point values it will just be the next highest
integer beyond the maximum data value and can be ignored.
Uhm but it has to do with the "number of categores"? It's used for Histogram
only?
see also the output of r.univar and the display histogram tool.
Ok r.univar is ok (I guess).
> - and in the r.info v2 I get a command slightly different from
> the one I typed:
> r.in.xyz input="C:\Test_areas\graphbased\saidav2" \
> output="v2@PERMANENT" method="mean" type="FCELL" fs=" " \
> x=1 y=2 z=3 zscale=1.0 percent=100
> Why?
That was a typo. What I mean is that, when I imported that file it has applied all those zscale, percent and methods. My question is: does this “change my data”?
that’s simply a function of what’s present in your input data.
for floating point values it will just be the next highest
integer beyond the maximum data value and can be ignored.
Uhm but it has to do with the “number of categores”? It’s used for Histogram
only?
see also the output of r.univar and the display histogram tool.
Ok r.univar is ok (I guess).
and in the r.info v2 I get a command slightly different from
the one I typed:
r.in.xyz input=“C:\Test_areas\graphbased\saidav2”
output=“v2@PERMANENT” method=“mean” type=“FCELL” fs=" "
x=1 y=2 z=3 zscale=1.0 percent=100
Why?
Dear List,
I have a problem exporting a TIN using v.out.vtk
If I use the -c flag the output is the same I don't use the flag...
Anyone have an idea where I'm wrong?
I'm using GRASS from ubuntugis unstable on Ubuntu.
thanks
Pierluigi
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