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Tectonics Consultancies II – Andrew Carr

Thursday 13/05   10:30 AM – 6:20 PM     ROOM: WWS

50 MINUTE SESSIONS

1. 10:30 AM  GEO-RGE
2. 11:20 AM  CHRIS
3. 12:10 AM  ANDREW

1:00 PM – 2:00 PM     LUNCH BREAK

1. 2:00 PM  MATEUSZ
2. 2:50 PM  DAVID
3. 3:40 PM  NIKOS

4:30 PM – 4:40 PM   BREAK

1. 4:40 PM  JOHN
2. 5:30 PM  ? JARED ?

6:20 PM END

This is to connect in a fairly smooth way two mesh objects (see attached image). Imagine if you have an undulating surface and you would like to smoothly connect it to a column underneath it (like a funnel). In summary, you create holes in the two meshes (by deleting triangles, rectangles) and then use the “Connect” object under Create->Geometry->Compound Objects. In detail:

1. Create a cylinder
2. Apply the Edit Mesh Modifier to it
3. Go down to polygon sub-object (red square), select the top circle, hit delete to delete it

then

1. Create a NURBS surface of any sort…then undulate it. Choose an appropriate Surface Approximation (e.g. regular 6 x 6 steps) 2. Apply the “Shell” modifier and give it a thickness if you wish 3. Apply the Edit Mesh modifier to it 4. Get a view of its underside 5. Choose the polygon subobject mode (red square) 6. Choose a few triangles, hit delete to delete them.

then

1. Please the cylinder so that it is under the surface and specifically under the deleted triangles.. make sure there is a gap so you can see the transition 2. Select the cylinder 3. Go to create geometry -> Compound Objects -> Connect 4. Click on select operand and click on the surface 5. The two objects connect 6. Select number of segments and tension to relax the blending of the two objects 7. Try to smooth bridge and ends and see if that gives you what you want.

This is a “push” / “nudge” to register for structural consultancies on Friday. I received a message from Adam Sharr that not everyone has signed up and he would like everyone to sign up as it is the engineer’s first visit to the WSA. Let’s make a good first impression! Thank you.