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Raster to TIN conversion

February 23 2010 | 0 comments
Categories: 3D Mapping, Map Data

When I do this in ArcScene my result is a vertical line. What do I need to do to rectify this?

Mapping Center Answer:

Are you perhaps using using lat/long for your X, Y coordinates and either meters or feet for your Z coordinates. If so, you actually have a valid TIN but ArcScene is assuming that the X, Y and Z units are the same. So what you get is a very, very tall TIN (which appears as a vertical line). The solution is to either:

  1. Reproject the TIN into a coordinate system so X, Y and Z units match (e.g., UTM with the Z units in meters or State Place with the Z units in feet); or
  2. In ArcScene, click View > Scene Properties > Vertical Exaggeration (area) > click "Calculate from Extent".

Solution 1 is a better GIS design. Solution 2 will at least allow you to display the data immediately.

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