Create a curve on a surface

Description: 5 minutes; Lab exercise: 20 minutes

Use the new copilots to create 3D curves on a surface.  

Now you can:

Note  You may still use the old 3D Curve command by typing (load "old_curve_3d").  Consult $INSTALLDIR\help\osdm\Common\documentation\goodies\Readme-0114 for the documentation.

 

Lab exercise

These exercises provide hands-on experience using the new 3D Curve features in OneSpace Designer Modeling 2005.

Prerequisites

Create a curve on a surface and specify a tangent with the Vector 3D Copilot

  1. Start OneSpace Designer Modeling and load skin_part.pkg.

  2. Click 3D Curve .

  3. Click Crv on Surf in Create Directly.  Add Curve is selected by default.

  4. Specify /p1 for the part name.

  5. Click the face.

  6. OSDM prompts you to specify a point on the selected face.  Click a point on the face; you may specify a point on the edge of the face for the start and/or end position of the curve, but not for a midpoint.

  7. Click Tangent.  Use the Vector 3D Copilot to specify the direction of the tangent.  (Remember to right-click to Accept, Reject, or Clear the tangent setting.)

  8. Click at least five additional points.

  9. Click Back twice to delete the last two points just added.

  10. Click to complete the curve.

Imprint a closed curve on a surface using curvature feedback

  1. Start OneSpace Designer Modeling and load skin_part.pkg.

  2. Click 3D Curve .

  3. Click Crv on Surf in Create Directly.

  4. Click Imprint.  Because imprinting modifies the existing part, OSDM does not prompt you for a part name.
  5. Click the face.  Observe that the Closed checkbox is grayed.

  6. Click a point on the face; you may not specify any point on the edge of the face when creating a closed curve.

  7. Click Feedback to see the curvature feedback.

  8. Click at least two more points; the Closed checkbox is now available.

  9. Click Closed.  OSDM completes the curve.

  10. Click .