Rhino 5.37 [viewport rectangle]

“Drawing a Viewport Rectangle (for Make2d)”


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  1. Frequently when using the make2d command, it is useful to have a rectangle that represents the viewport being exported.
  2. Make sure to save you view (Rhino 5.28 [saved views]).
  3. For a perspective view, check the box next to “Show viewport rectangle” in the 2-D Drawing Options dialog box.[premium content]
  4. If your view is in parallel projection, click on the small triangle next to the view name and navigate to Set Camera>Show Camera [premium content]
  5. Now switch into your perspective view. You should see your viewpoint, camera location, roll, target & lens angle represented by points.
  6. Use the rectangle tool to draw a rectangle between the target and the lens angle points. This rectangle is proportioned correctly to your viewport. [premium content]
  7. Now use the scale command and set your basepoint to be the lens angle point. Type 2 to double the size of the rectangle. [premium content]
  8. You now have a rectangle that represents the outer dimensions of the vieport you saved in step 2.
  9. Now make sure your rectangle is visible when you use the make2d command and you will have a rectangle that represents your viewport (which is especially good when you underlay a clay rendering with your make2d line drawing).

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