Hi @stuart.crake,
Here is a similar work flow to create the illusion of a non-rectangular detail in Rhino 8 and earlier.(Non-rectangular details are now supported in Rhino 9 WIP)
You can use this method on the model geometry, as well as on the layout.
- Basically, create a solid white hatch on a layer with a white display and print color.
- You can prioritize it to be see on the top of the geometry with the DrawOrder commands:
BringToFront or BringForward - Trim to a boundary curve leaving the hatch to mask the other geometry.
4. Set Print Preview on the viewport
5. Print.
See how it is done here:
Let us know if it works for you.
Sincerely,
Mary Ann Fugier
