[GRASS-dev] wxGUI GRASS 7: how to drape a map over a DEM?
hmitaso at ncsu.edu
Sun May 26 06:47:05 PDT 2013
I have updated the videos for wxnviz including working with multiple surfaces, color draping and adding a constant surface
and cutting planes here:
you can see there wxnviz and old nviz side-by-side.
I will re-do the videos once we have a final release of 6.4.3
The only thing that you need to be aware of is that in GRASS6 change in region is ignored by wxnviz - it always
uses the region which was set when you first switched to it. You need to quit wxgui, change region and restart wxgui.
In GRASS7 region can be changed - one more reason to have GRASS7 pre-release.
Anna please correct me if I am wrong in anything above.
I hope this helps, Helena
Department of Marine, Earth, and Atmospheric Sciences
2800 Faucette Drive, Rm. 1125 Jordan Hall
North Carolina State University
Raleigh, NC 27695-8208
hmitaso at ncsu.edu
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On May 26, 2013, at 7:16 AM, Markus Metz wrote:
> On Sun, May 26, 2013 at 11:21 AM, Anna Petrášová <kratochanna at gmail.com> wrote:
>> On Sun, May 26, 2013 at 11:08 AM, Markus Metz
>> <markus.metz.giswork at gmail.com> wrote:
>>> On Sun, May 26, 2013 at 10:32 AM, Anna Petrášová <kratochanna at gmail.com>
>>>> The problem why you don't see anything when you load both maps is that
>>>> flowacc has large extreme values, so the initial view is confused.
>>>> you should be able see something when you adjust the view to some normal
>>> That means I can not change the raster map to be used as surface?
>>> Because I see that two different surfaces are used after updating,
>>> resetting, and changing height to a reasonable value, even though only
>>> one surface map is given. BTW, nviz in 6.x accepts multiple raster
>>> maps as surfaces.
>> Sorry, I don't really understand what you mean. You can display more
>> surfaces, you can unload (uncheck or remove) surface and add new.
> OK, got it. All active raster maps in the layer manager are loaded as surfaces.
> Markus M
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