Rhino 5.36 [cplane]

“Working with cPlanes”


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  1. To help with viewing the cPlane, first navigate to Tools>Options and select “Grid” from the “Document Properties” section of the Options Window.
  2. Change the “Grid Line Count” to be 2000 and the “Minor Grid Lines Every:” value to 12. Select Ok when you are done. [premium content]
  3. Now right click on the name of your viewport window (usually this will be “Perspective” and navigate to Set CPlane>3 Points.
  4. Now click on the new location for point 0,0,0 (the origin).
  5. Click on the direction you wish for your new x-axis (usually red). You may need to work in a second view to help establish this direction. As a rule it is always safer to avoid snapping to objects when establishing the new cPlane as unless the object is rectangular and “unrotated” the resulting cPlane may not be perfectly horizontal or vertical.
  6. Now click on the direction for the new y-axis (usually green). Generally this will be set up in what previously was the z-axis direction.
  7. Your new cPlane is now set and you can begin drawing on that plane. You should see the grid change with your new cPlane as shown below. [premium content]
  8. If you wish to reset your cPlane to the default value for the Perspective view, you can right click on the name of your viewport (Perspective) and navigate to Set cPlane>World Top. The default cPlane (in the Perspective viewport) should look like the one below. [premium content]

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