Thank you @Drew for internalizing the geometry for us R5 folk. This might be a case where R5 and R6 give different results? One little tip to keep the file size as small as possible: re-use one internalized copy of the geometry instead of duplicating the internalized params.
@jan.de, at first glance it appeared that your “cutting curve” was planar, but it’s not? Still, I couldn’t resist playing around with using a plane to slice both your curves and a surface lofted from them.
- The purple group at the bottom uses three points on your cutting curve to derive a cutting plane.
- The blue group lofts your vertical curves to create a surface, then slices it with the plane.
- The white group uses the same plane to cut both Horizontal and Vertical curves.
In the white group, there are three Preview components. The white color shows curves that don’t intersect the plane and remain untouched. The green color shows the split part of the curves covering the hole. The yellow color shows the split part of the curves NOT covering the hole.
Likewise in the blue group, the green Preview shows the split surface covering the hole, the other (blue) shows the surface that remains.
So disabling both green group previews hides the hole.
Maybe no help but it was fun, thanks.