Hans,

Thank you, I was able to fix the threshold issue with all of
the stock doors but I was still seeing the problem with the
thresholds of the entryways created using the OuvertureArcDeCercle.sh3d image. I went and changed the texture
to the ground plate of OuvertureArcDeCercle.sh3d which seems ...

Hans,

Thank you. I'm still a bit unclear about the magnetism issue since I just checked my Preferences and magnetism is enabled and I don't believe that I hit the cmd key to disable magnetism. I had been frequently adjusting the position of the doors and did have a magnetism issue with the windows ...

https://docs.google.com/file/d/0B7TtMzMu5ohockNkdk5Zd2YycUU/edit?usp=sharing

I've have not done this before (hope this works) I am including a link to my sh3d test image. The alignment of the doors/entryways seems to be correct.

BTW: Is there a better way to share a sh3d image?

Yes, I drew the rooms only after the doors and walls were in place. I
also had deleted the room and re-drew the room point by point into the
threshold area ... sometimes the texture in the threshold area would
appear hashed in the 3D image but would not show up in a picture. I
believe that I'm ...

I've imported a floor texture for a room but I am unable to extend the
floor texture into the threshold area which connects the two rooms.
Defining the room to include the threshold did not resolve the problem
and I was unable to define a texture for the threshold between the two rooms.