topic How to use Viewshed in 3D Questions https://community.esri.com/t5/3d-questions/how-to-use-viewshed/m-p/136503#M825 <HTML><HEAD></HEAD><BODY><SPAN>Hello community,</SPAN><BR /><BR /><SPAN>I would like to make a Viewshed for a tower. The tower must have a height of 70 meters above the z-value from my TIN. If I am changing the z-value in the "input point observer features" I always get the viewshed-raster with the z-value from the TIN.</SPAN><BR /><BR /><SPAN>How can I calculate the viewshed from a point X,Y with an offset of Z from the ground?</SPAN><BR /><BR /><SPAN>Thanks in advance!</SPAN></BODY></HTML> Tue, 10 Jun 2014 17:54:23 GMT PeterKrieger 2014-06-10T17:54:23Z How to use Viewshed https://community.esri.com/t5/3d-questions/how-to-use-viewshed/m-p/136503#M825 <HTML><HEAD></HEAD><BODY><SPAN>Hello community,</SPAN><BR /><BR /><SPAN>I would like to make a Viewshed for a tower. The tower must have a height of 70 meters above the z-value from my TIN. If I am changing the z-value in the "input point observer features" I always get the viewshed-raster with the z-value from the TIN.</SPAN><BR /><BR /><SPAN>How can I calculate the viewshed from a point X,Y with an offset of Z from the ground?</SPAN><BR /><BR /><SPAN>Thanks in advance!</SPAN></BODY></HTML> Tue, 10 Jun 2014 17:54:23 GMT https://community.esri.com/t5/3d-questions/how-to-use-viewshed/m-p/136503#M825 PeterKrieger 2014-06-10T17:54:23Z Re: How to use Viewshed https://community.esri.com/t5/3d-questions/how-to-use-viewshed/m-p/136504#M826 <HTML><HEAD></HEAD><BODY><BLOCKQUOTE class="jive-quote">Hello community,<BR /><BR />I would like to make a Viewshed for a tower. The tower must have a height of 70 meters above the z-value from my TIN. If I am changing the z-value in the "input point observer features" I always get the viewshed-raster with the z-value from the TIN.<BR /><BR />How can I calculate the viewshed from a point X,Y with an offset of Z from the ground?<BR /><BR />Thanks in advance!</BLOCKQUOTE><BR /><BR /><SPAN>The solution is to add a column in the observer point table with the name "OFFSETA" and their you have to set the heigt for your tower.</SPAN></BODY></HTML> Thu, 12 Jun 2014 07:56:16 GMT https://community.esri.com/t5/3d-questions/how-to-use-viewshed/m-p/136504#M826 PeterKrieger 2014-06-12T07:56:16Z