Hi,
another, may be simpler option is SAGA GIS, its analytical hillshading
tool includes a ray tracing option:
http://www.saga-gis.org/saga_tool_doc/4.1.0/ta_lighting_0.html
Volker
On 05/16/2017 10:22 AM, Newcomb, Doug wrote:
Kenlo,
Suggest you look at GRASS GIS r.sun ,
https://grass.osg
Kenlo,
Suggest you look at GRASS GIS r.sun ,
https://grass.osgeo.org/grass72/manuals/r.sun.html.
Doug
On Tue, May 16, 2017 at 3:16 AM, NASAHARA Kenlo <24dake...@gmail.com> wrote:
> Dear GDAL people:
>
> Using DSM, I want a "shadow map" not only by the slope
> itself but also by the other slopes
Dear GDAL people:
Using DSM, I want a "shadow map" not only by the slope
itself but also by the other slopes. I mean, if a tall and
steep peak exists, and if it is illuminated by the sun from
near the horizon, the shadow of the peak falls on a wide
area of the foot of the mountain. Such shadow i
