Fix or Release a Line or Point

General

• You can fix a line so that it does not change its location. Note, however, that the endpoints a line can be dragged to a new location also from a fixed line.
• You can fix the endpoint of a line so that the endpoint can be stationary even if the line is dragged to a new location.
• Fixing a circle line fixes both the center point and the radius point of the circle.
• The center point of a circle can be fixed, so it can be stationary if the radius point of the circle is dragged.
• In some cases, fixing replaces giving constraints. For example, Line geometry copied to a sketch via the clipboard from a 2D drawing, for example a dwg drawing imported into Vertex, should often be fixed, so that it does not break up when adding other constraints or accidentally dragging.
• The context-sensitive function Release works for fixed lines and points.

Fix a line or point

1. Select a line, lines, point, or points in the sketch.
   • Use the Ctrl key if you select more than one element.
2. Select the context-sensitive function Fix.
   • If the line was free, i.e. purple, it turns black.
   • If constraints were applied to the line, the constraints become red, that is, overdefined.

Release the line or point

1. Select a fixed line, lines, point, or points in the sketch.
   • Use the Ctrl key if you select more than one fixed element.
2. Select the context-sensitive function Release.
   • The color of the line becomes purple if the constraints do not limit it.
   • Red, overdefined, constraints become normal constraints.