New answers tagged 3d-analyst
To add to @Neil's answer, you also need to increase the resolution of the DEM over which the image is being draped if you want to drape over a full resolution DEM. This is controlled under Propoerties -> Base Heights ->Floating on a custom surface -> Raster Resolution. By default ArcScene will assign very course resolution so that you can see the data ...
The raster quality is deliberately downgraded to increase display speed. See the Rendering tab of the raster layer properties in ArcScene and crank up the slider bar second bottom.
I don't know of a way to enable Z values afterwards, but here's a workflow to create a new polyline with Z enabled and copy the existing fields and data over: 1) Create a new polyline feature class which stores Z values. 2) Import the existing fields from the old polyline feature class. 3) Right click the new polyline feature class in ArcCatalog and ...
Create a new feature class of type "Line", and check "Coordinates include Z values", continue through the options until you get to field names. Import your original lines which didn't have Z enabled. Then, right click your new feature class, and "Load Data" from your original polyline feature class.
You cannot create vertical plane and surfaces in ArcGIS, only 2.5D. You can however create them in an external 3-rd party application, export as 3D DXF and import and view in ArcScene.
It all depends what data you have, if you just need to grid a surface gis is ok, if you need to interpret the subsurface you need special software...
You don't need a specific add-on programme, look at The Subsurface Geology of Brussels, Belgium, Is Modeled with 3D GIS with 3D Analyst. or Modeling the Terrain Below (3D Borehole tools)
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