modifying roofs

[QuietStorm]

I am trying to create a set of drawings for an addition to an existing house. I have drawn the ex. walls and roof, and have added my new structure as separate layers so I can turn things off and on etc.

I am having trouble creating the opening in the existing roof line to match my new roof. For the walls this is strait forward, but how is this accomplished with the roof? I want to connect the floors and interior walls, etc..

I have tried the clip surface and subtract solids commands, neither of which seems like the right thing.

Any ideas?

[Don@Black Dog]

What have you tried so far? Have you tried Edit Group? Select the roof, selected Edit Group, drawn a shape to be deleted, and hit Clip Surface, then deleted the drawn shape and exit Edit Group. It may take some tries to get the 3d interface correct.

[P Retondo]

If you want to create a hole in a roof object, first create a rectangle or polygon that outlines the hole you want. Copy it. Then "edit" the roof object with the "Edit Group" by keying , paste your polygon in, and "Exit Group."

Use a similar process to edit a roof face.

[panthony]

Both Dons and Petes methods will work for you but don't forget to use the paste-in-place command after you copy. It will drop in the same position it was created. Make sure you have the stack command off before the copy.

pa

[Don@Black Dog]

Good catch, Pete. That tip has proven invaluable.

[Don@Black Dog]

Good catch, Pete. That tip has proven invaluable.

[QuietStorm]

Thanks all, the copy paste method is exactly what seems to work. I hadn't realized that you could paste a poly into an edit group window. Invaluable.

I still end up with a lip where the roof faces join, as the roof remainder is cut square to the ground plane. This is helped by overlapping the roof faces a bit, as I had to do when I used the "create roof face" command set to a specific pitch, the peaks aren't perpendicular to the ground plane. Doesn't this askew my roof framing and materials lists?

Seems to me that the 3D reshape tools should do more to reshape objects.

[Jonathan Pickup]

if you are looking for a manual that has a lot of roof editing tricks, my VectorWorks Architect manual has all the roof tips and tricks that I know