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 History enabled

The SubCrv command shortens a curve to the new picked endpoints.


  1. Select a curve.
  2. Pick a new start for the curve.
    The command-line displays the current length of the curve.
  3. Pick a new end or type a length for the curve.

Command-line option


Specifies whether or not the objects are copied. A plus sign appears at the cursor when copy mode is on. The RememberCopyOptions command determines whether the selected option is used as the default.


Move the cursor to decide the direction.


Locks the direction to the cursor direction.

To lock a direction

  1. Start the sub curve in the desired direction.
  2. Type D, and press Enter.

Removes the parts of the curve outside of the start and end points.


Places points at the start and end point on the curve, but does not shorten the curve.

Mode=MarkEnds works with History.


Picks the sub-curve from its middle point.

SubCrv as input for commands

Use SubCrv inside a command to select part of a curve for input.


  1. Start the ExtrudeCrv command.
  2. At the Select curves to Extrude prompt, type subcrv.
  3. At the Select curve to temporarily shorten prompt, select the curve that you want to extrude a part of.
  4. At the Start of curve prompt, pick the start of the new curve.
    The order you pick the start and end determines the curve's direction.
  5. At the End of curve ... prompt, pick the end of the new curve.
  6. At the Select curves to Extrude ... prompt, press Enter.
  7. Continue with the ExtrudeCrv command.

See also

Create curves from other objects




Rhinoceros 8 © 2010-2024 Robert McNeel & Associates. 07-Jun-2024