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Set as 2D/Undefined

Use this dialog to convert 3D lines or 3D polygons to 2D lines or 2D polygons. You can also set the heights to undefined (-99999).

Where to Find the Dialog

Right-click in the horizontal list field and select Tools - Set as 2D/Undefined.

Available Methods

You have three options for assigning height:

  • Min.
  • Max.
  • Mean of min. and max.

Examples

Original polygon

Max. height

Min. height