I try to build a simple model using Grasshopper, and there is a problem: I have a set of 2 intersecting elements (a rectangle and an ellipse) and when I use them as curves for creating walls it works fine. Then, I find intersection points, trim the curves and join them into one single entity. I copy it several times along the Z axis (for getting a set of levels), and here the problem occurs. Grasshopper is telling me the cutves are not planar, despite they are… See the picture:
When I bake the trimmed and joined curve I still can use it as a curve for creating a wall. The more, I still can use this curve in Grasshopper, the copying operation makes it impossible… It looks like the copy operation is messing something…
How can I solve this problem?