The Plane Surface command enables you to create any one of eight different types of planes, you can select in the 
Reference Plane drop-down list in the Selection List:
- Bounded  a plane bounded by curves or plane boundaries of surfaces.
 
 
| Associativity The surfaces created using this command can be associative: associative surfaces are Skins, that is open solids, retaining a link to the base curves, so that if you modify the base curves the surfaces will be modified accordingly; they have a history and are displayed in the Model Structure. See "
Associative Surfaces (Skins)" for details.
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- On Face  a plane lying on the face of a solid.
- 3 points  a plane defined by three points.
- Plane  a plane lying on another plane.
- Through axis & point  a plane defined by a line and a point not lying on that line.
- Perpendicular to axis & through point  a plane perpendicular to a line and through a point.
Using the More Conditions button, you can apply the following additional conditions to the plane you're creating (depending on the type you selected in the 
Reference Plane drop-down list):
- None  no additional conditions.
- Parallel & point  creates the plane parallel to the reference plane and through a point.
- Parallel & distance  creates the plane parallel to the reference plane at a specified distance.
- Perpendicular & axis  creates the plane perpendicular to the reference plane and through a specified line.
- Angle & axis  creates the plane at a specified angle with the reference plane and through a line.
For further details, see "Applying additional conditions when creating a plane".
The options of the Extension drop-down list enable you to also specify the extension of the plane surface by selecting one of the following options:
- Dimensions  extends the plane based on numerical width and height dimensions
- Face  extends the plane to the face of a selected feature
- Object  extends the plane to the projection of a selected object.
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Tips and Tricks