[GRASS-user] v vol rst super slow

[Anna Petrášová]

On Wed, May 23, 2018 at 9:02 PM, Francois Chartier
<fra.chartier at gmail.com> wrote:
> which output do you select to have a 3D Raster?

You probably want to specify 'elevation' parameter.

>
> 2018-05-23 15:32 GMT-04:00 Markus Metz <markus.metz.giswork at gmail.com>:
>>
>>
>>
>> On Wed, May 23, 2018 at 1:40 PM, Markus Neteler <neteler at osgeo.org> wrote:
>> >
>> > On Wed, May 23, 2018 at 1:18 PM, Sören Gebbert
>> > <soerengebbert at googlemail.com> wrote:
>> > > Hi,
>> > > your region settings are interesting.
>> > > Do you really need a resolution of 5m in x,y plane and 1m in z
>> > > direction?
>> > > As a result you have 23,507,876,616 voxel to compute, but only 76887
>> > > points for interpolation.
>> > >
>> > > I would suggest you reduce the resolution of your region
>> > > significantly, at least to test the interpolation settings.
>> >
>> > Indeed, at least to get a complete run.
>> >
>> > > Best regards
>> > > Soeren
>> > >
>> > > 2018-05-23 13:09 GMT+02:00 Francois Chartier <fra.chartier at gmail.com>:
>> > >> see below
>> > >> g.region -3p
>> > >>
>> > >> projection: 1 (UTM)
>> > [...]
>> > >> cells:      76572888
>> > >> cells3:     23507876616
>> > [...]
>> > >> v.vol.rst input=BHMat1All_May12 at Toronto wcolumn=cat dmin=0.1
>> > >> 25 records selected from table
>> > >> Processing all selected output files will require 0 bytes of disk
>> > >> space for
>> > >> temp files
>>
>> These 0 bytes are caused by integer overflow, easy to fix.
>>
>> > >> WARNING: Unable to create <(null)> raster map without cross_input
>> > >> raster map
>> > >> being specified
>> >
>> > that comes from
>> > vector/v.vol.rst/main.c" line 640
>> >
>> > To be studied...
>>
>> The reason is that no output has been specified.
>>
>> Markus M
>>
>>
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>
>
>
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