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View Full Version : how to extract corridor boundary ?



robert.248186
2010-11-04, 06:48 AM
the problem: how to use the daylight outer boundary of a corridor to "punch" a hole through existing TIN surface?

why do I want to do this? when making rendering and animations the existing grade TIN passes through the corridor surface. I have tried pasting corridor and existing grade TIN surfaces into the EDIT part of a new surface definition and it works okay...except the links are now coplanar with new surface definition, which makes the render look terrible. I have made a solution to this by targeting the corridor surface the underside of the all the pavements, soils, ect. This way I can still use code sets and links.

i feel that it would be less tricky and faster if i could just (somehow) enter the corridor boundary into the new surface definition. that way the hole would dynamically update every time the corridor was altered. and i wouldn't have to fuss with all these contrived topsoil and subsoil layers on non paved subassemblies.

valejandro_ibarra
2010-11-04, 10:51 PM
in the corridor properties create a surface using top links, then switch to the boundary tab, and add the boundary using an automatic option or manually, then using surface utilities extract the border

hope it helps