- Frequently when using the make2d command, it is useful to have a rectangle that represents the viewport being exported.
- Make sure to save you view (Rhino 5.28 [saved views]).
- For a perspective view, check the box next to “Show viewport rectangle” in the 2-D Drawing Options dialog box.[premium content]
- 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]
- Now switch into your perspective view. You should see your viewpoint, camera location, roll, target & lens angle represented by points.
- 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]
- 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]
- You now have a rectangle that represents the outer dimensions of the vieport you saved in step 2.
- 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).