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# MGED EDITING FEATURES

The heart of the MGED system is its editing features. The editing features are divided into two classes: object editing and solid editing. Object editing is designed to allow one to change the location, size, and orientation of an object. Recall that an object is defined as the basic data unit of the MGED system and includes both combinations and solids. In the case of a solid, one needs to change not only its location, size, and orientation, but also its ``shape''. Changing the shape of a solid means changing any of its individual parameters. Hence, solid editing is handled separately.

- Combination Editing (OBJECT EDIT)
- Selecting Objects For Editing
- Object Edit State
- Translate An Object
- Rotate An Object
- Scale An Object
  - Global Scale
  - Local Scale
- Solid Editing
- Selecting Solids For Editing
- Solid Edit State
- Rotate A Solid
- Translate A Solid
- Scale A Solid
- Solid Parameter Editing
  - ARB Parameter Editing
  - Move ARB Edges
  - Move ARB Faces
  - Rotate ARB Faces
  - Truncated General Cone (TGC) Parameter Editing
  - Ellipsoid Parameter Editing
  - Torus Parameter Editing