Cropping two perpendicular curves at their intersections Hi,

I'd like to have about an efficient way of cropping the selected curve at every point where it intersects with the unselected curve (see picture).
You can achieve this result by using the Boolean modifier.

Select your large curved mesh, and add a Boolean modifier set to Difference.



This will make the curved wall follow the contours of the arch in the direction of the Normals. You may need to re-calculate them (Ctrl+N) to get the desired result.



Now if you apply the modifier, you can remove the arch mesh and you should end up with a completed single mesh with the desired arch shape in it.