I'm using boolean operations to merge walls in order to avoid the separation lines between them (like the wall under roofs, or 'wall_sud_est' which has been added in my design).
by the way, I had difficulties to hide the line between 2 overlapping roofs (terrasse and garage) since they are not made from the same base shape, but the panes have the same angle... I don't know how to do this, I tried to use the same color for surface and wires, but depending on the angle of view, the lines color does not follow the surface color.
for fusion, I wanted to group objects in order to import them and be able to rotate and move the whole building in the ground drawing (see attached)
If there is another way of doing this, I will do, I will try arch building asap (tomorrow now)...
I tryed with compound, it seems to be better !
(I have merged with in the attached file. the file named Terrain+garage+house was made before without compound)
sorry for the names which are mixed english+french...
I do not find errors with geometry check, how do you get these results ?
thanks for your reply,it is very helpful