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- The X-FORM option allows you to transform two-dimensional
- geometry into a three-dimensional model.
-
- Using X-FORM, DELTA, JOIN, a copy of the selected entities
- is made at a distance from the original geometry. The
- original entities and their copies are joined at their
- endpoints by projection lines.
-
- You use the POLYGON option to select a group of entities
- that lie inside a specified area that you define, like a
- window.
-
-