topic Creating Profile Graph - Interpolating Lines and Bathymetry in 3D Questions https://community.esri.com/t5/3d-questions/creating-profile-graph-interpolating-lines-and/m-p/256546#M1524 <HTML><HEAD></HEAD><BODY><SPAN>Rather than drawing a line using the Interpolate Line tool in the 3D Analyst toolbar I want to use an existing shape file (polyline) to define the route. I was given coordinates along the route at various points where it changes direction and joined the dots to get a polyline!&nbsp; How do I use this correct data rather than drawing an approximation of the line - it should be obvious but I cannot work it out. I have an underlying TIN and/or Grid already and know that by clicking the create profile graph tool it draws what I am wanting (sort of).&nbsp; Note this is bathymetric contours so instead of the graph showing values (which are positives) going up it should really go down with the 0 value along the x axis at the top.&nbsp; Do I need to relable all the contours as negative values, and if so how?</SPAN></BODY></HTML> Mon, 09 Aug 2010 16:52:30 GMT ColinMatheson 2010-08-09T16:52:30Z Creating Profile Graph - Interpolating Lines and Bathymetry https://community.esri.com/t5/3d-questions/creating-profile-graph-interpolating-lines-and/m-p/256546#M1524 <HTML><HEAD></HEAD><BODY><SPAN>Rather than drawing a line using the Interpolate Line tool in the 3D Analyst toolbar I want to use an existing shape file (polyline) to define the route. I was given coordinates along the route at various points where it changes direction and joined the dots to get a polyline!&nbsp; How do I use this correct data rather than drawing an approximation of the line - it should be obvious but I cannot work it out. I have an underlying TIN and/or Grid already and know that by clicking the create profile graph tool it draws what I am wanting (sort of).&nbsp; Note this is bathymetric contours so instead of the graph showing values (which are positives) going up it should really go down with the 0 value along the x axis at the top.&nbsp; Do I need to relable all the contours as negative values, and if so how?</SPAN></BODY></HTML> Mon, 09 Aug 2010 16:52:30 GMT https://community.esri.com/t5/3d-questions/creating-profile-graph-interpolating-lines-and/m-p/256546#M1524 ColinMatheson 2010-08-09T16:52:30Z