Yes that is what I need. I knew I could do that, wasn't sure if it was the best option but figured it was my backup if there was a LandXML way. I'll just turn my breakline approximation parameters to a high number so there's on change of additional triangulation which of course would be unnecessary.
Okay, I just ran through it all.
When I bring the .dwg into TBC it comes in as all 3D faces. I added those to the surface and exported as a TTM and it was 667KB which for a size job like this is very good.
I brought in the same 3D faces, converted them to linestrings, then added to the surface with my breakline distance set to 10000 so no extra triangles. I exported it again to TTM and was very surprised it was the same exact size.
I didn't model this job obviously, but when I looked at the 3D surface it looked good so I think everything was true.
------------------------------
Adam Bower
------------------------------
Original Message:
Sent: 01-06-2021 18:33
From: Marshall Cant
Subject: Converting .tp3 TIN Surface to TTM with Free Software and TBC
Adam: I have imported 3D Faces (DWG "triangles") into TBC and used them to create TIN surfaces many times. It works pretty well if there are no alternatives (like an XML etc). Not sure how Topcon does it but I would highlight the surface triangles, export them as a DWG and drag that DWG into TBC. Then in TBC grab all the triangles and create a surface with them.
Is this what you need?
------------------------------
Marshall Cant
Original Message:
Sent: 01-06-2021 17:32
From: Adam Bower
Subject: Converting .tp3 TIN Surface to TTM with Free Software and TBC
Is there any easy way through using TBC + free programs to convert a .tp3 surface to a .TTM? I have the free Topcon 3D Office program which imports a LandXML, but won't export a LandXML. It will export a .dwg or .dxf but TBC doesn't handle either of those as a TIN surface (right?). Is it easy to make a .dwg or .dxf into a true TIN surface that isn't technically a 3D line surface?
------------------------------
Adam Bower
------------------------------