topic Service Area determination in 3D Questions https://community.esri.com/t5/3d-questions/service-area-determination/m-p/42891#M319 <HTML><HEAD></HEAD><BODY><SPAN>Original User: TSEDLACEK</SPAN><BR /><BR /><SPAN>Hi all of you smart GIS folks,</SPAN><BR /><BR /><SPAN>I am trying to determine the service area of a manhole.&nbsp; I have created a tin from 2' contours.&nbsp; I have one test manhole with an elevation at the bottom.&nbsp; The minimum slope on our service lines is .004 (irrelevant I know but bear with me). I have created concentric 1' buffers around the manhole with each having an increased Z value of .0045' (.0045 x 1'). Where these buffers intersect the tin will be the service area of the manhole.</SPAN><BR /><BR /><SPAN>SO I'm now stuck at this point on how to create the polygon depicting this intersection.&nbsp; Do I somehow need to create a surface out of these buffers, if so how?&nbsp; Is this a 3D analyst problem or spatial analyst or ...?&nbsp; I will attach a couple of exhibits from ArcScene so you can get the visual of what I'm trying to explain.&nbsp; I hope I've been clear enough to give everyone a sense of what I'm trying to accomplish....</SPAN><BR /><BR /><SPAN>Thanks in advance for any help you might have..!</SPAN><BR /><BR /><SPAN>Tom S.</SPAN></BODY></HTML> Fri, 02 Aug 2013 16:38:02 GMT Anonymous User 2013-08-02T16:38:02Z Service Area determination https://community.esri.com/t5/3d-questions/service-area-determination/m-p/42891#M319 <HTML><HEAD></HEAD><BODY><SPAN>Original User: TSEDLACEK</SPAN><BR /><BR /><SPAN>Hi all of you smart GIS folks,</SPAN><BR /><BR /><SPAN>I am trying to determine the service area of a manhole.&nbsp; I have created a tin from 2' contours.&nbsp; I have one test manhole with an elevation at the bottom.&nbsp; The minimum slope on our service lines is .004 (irrelevant I know but bear with me). I have created concentric 1' buffers around the manhole with each having an increased Z value of .0045' (.0045 x 1'). Where these buffers intersect the tin will be the service area of the manhole.</SPAN><BR /><BR /><SPAN>SO I'm now stuck at this point on how to create the polygon depicting this intersection.&nbsp; Do I somehow need to create a surface out of these buffers, if so how?&nbsp; Is this a 3D analyst problem or spatial analyst or ...?&nbsp; I will attach a couple of exhibits from ArcScene so you can get the visual of what I'm trying to explain.&nbsp; I hope I've been clear enough to give everyone a sense of what I'm trying to accomplish....</SPAN><BR /><BR /><SPAN>Thanks in advance for any help you might have..!</SPAN><BR /><BR /><SPAN>Tom S.</SPAN></BODY></HTML> Fri, 02 Aug 2013 16:38:02 GMT https://community.esri.com/t5/3d-questions/service-area-determination/m-p/42891#M319 Anonymous User 2013-08-02T16:38:02Z