topic Re: sun shadow volume - earth's horizon in 3D Questions https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667142#M3997 <HTML><HEAD></HEAD><BODY><P><A href="https://community.esri.com/people/timothy_hales-esristaff">timothy_hales-esristaff</A>‌ do you have a contact on the 3D dev team to assist with this request?</P></BODY></HTML> Thu, 03 Nov 2016 11:24:35 GMT DanPatterson_Retired 2016-11-03T11:24:35Z sun shadow volume - earth's horizon https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667141#M3996 <HTML><HEAD></HEAD><BODY><P>In a project we use Sun Shadow Volume (3D Analyst). For a scientific evaluation of the results, we need more detailed information about the calculation basis of the tool. Concretely, we are interested in the field VERT_ANGLE. How is the earth's horizon determined and taken into account?</P><P>Does anyone have more information? Or can tell me whom I can turn to?</P></BODY></HTML> Thu, 03 Nov 2016 10:10:28 GMT https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667141#M3996 NicoleSaravanja 2016-11-03T10:10:28Z Re: sun shadow volume - earth's horizon https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667142#M3997 <HTML><HEAD></HEAD><BODY><P><A href="https://community.esri.com/people/timothy_hales-esristaff">timothy_hales-esristaff</A>‌ do you have a contact on the 3D dev team to assist with this request?</P></BODY></HTML> Thu, 03 Nov 2016 11:24:35 GMT https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667142#M3997 DanPatterson_Retired 2016-11-03T11:24:35Z Re: sun shadow volume - earth's horizon https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667143#M3998 <HTML><HEAD></HEAD><BODY><P>There is this documentation that may help until you can get further information. &nbsp;It applies to all tools in the visibility/viewshed set</P><P><A class="link-titled" href="http://desktop.arcgis.com/en/arcmap/latest/tools/3d-analyst-toolbox/using-viewshed-and-observer-points-for-visibility.htm" title="http://desktop.arcgis.com/en/arcmap/latest/tools/3d-analyst-toolbox/using-viewshed-and-observer-points-for-visibility.htm">Using Viewshed and Observer Points for visibility analysis—Help | ArcGIS for Desktop</A>&nbsp;</P></BODY></HTML> Thu, 03 Nov 2016 21:35:23 GMT https://community.esri.com/t5/3d-questions/sun-shadow-volume-earth-s-horizon/m-p/667143#M3998 DanPatterson_Retired 2016-11-03T21:35:23Z