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Is there any way to create some sort of 3D surface (mesh, TIN, elevationLayer) from contour lines on the client side with ArcGIS JS API? Or alternatively edit a hosted 3D surface (any format)? In our application, the user can draw/edit contour lines, so I was wondering if there is way to generate a 3D surface from those edited contour lines on the client side.

Reza Amindarbari
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Topo to Raster is a geoprocessing tool that relies on the Spatial Analyst extension in ArcGIS Desktop and could theoretically be published as a custom GP service in ArcGIS Enterprise and consumed from a JSAPI application.

http://pro.arcgis.com/en/pro-app/tool-reference/3d-analyst/how-topo-to-raster-works.htm

related: Creating a dem from contours

john gravois
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  • Although I don't have ArcGIS Enterprise license for project I am currently working on, this is definitely something to consider for future projects. – Reza Amindarbari Jan 25 '18 at 17:43
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Yes, you can create a custom elevation layer by subclassing BaseElevationLayer. More details are here.

Hope this helps.

Richie.

Richie
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  • I used BaseElevationLayer, and was able to modify it (basically to do cut and fill on topography). But the resolution (pixel size) doesn't seem to be adequate for detailed 3D modeling. I was trying to put a building on a very steep land and get a rough estimate of the volume of needed cut and fill under the building. But the edges don't perfectly align with building footprint, given the relatively large size of pixels. – Reza Amindarbari Mar 30 '18 at 21:46