Problem: Cannot interpolate a 3D line


In 3D Analyst tutorial, Exercise 4 p. 43 step 7, if you have not already enabled 3D Analyst in ArcMap, you will be unable to interpolate a line.


The 3D Analyst extension is not enabled in ArcMap by default.

Solution or Workaround

  1. Click Tools and click Extensions.
  2. Check 3D Analyst.
  3. Click Close.