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 <[email protected]> wrote: > 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 is normally > not estimated by a simple "hillsahde" algorithm, which > includes the "gdaldem" command. I want to map such > shadows as well as the normal "hillshade" shadows. > > If you know a library or command to help it, please let > me know!! > > -- > Kenlo Nishida Nasahara > Faculty of Life and Environmental Sciences > University of Tsukuba, Japan 305-8572 > [email protected] > _______________________________________________ > gdal-dev mailing list > [email protected] > https://lists.osgeo.org/mailman/listinfo/gdal-dev -- Doug Newcomb USFWS 551F Pylon Dr Raleigh, NC 919-856-4520 ext. 14 [email protected] --------------------------------------------------------------------------------------------------------- The opinions I express are my own and are not representative of the official policy of the U.S.Fish and Wildlife Service or Dept. of the Interior. Life is too short for undocumented, proprietary data formats. *NOTE: This email correspondence and any attachments to and from this sender is subject to the Freedom of Information Act (FOIA) and may be disclosed to third parties.*
_______________________________________________ gdal-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/gdal-dev
