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HI hanif.yasrobi,
For clarification on my steps:
Thanks very much for your kind effort, As you see the problem is with this command i mean loft there is two problem first last solid which you have made is some how rotated you see the Z lines looks not ok also with this method you are refusing deformations on the Z direction which is very inmportant.
These are based upon the polylines you created from the points so any changes in Z should be reflected by your points.
you just pick two surface which is front side and back side of the rockmass and build a solid which refuse the deformation between these to surfaces which is 52 m length
I am not sure how your point data indicates this deformation.
First solution
I have found better solution for that actually with sweep command you can do more accurate job
you can give a path i mean conect points of on side from back to front as poly line and sweep two objects with this given path in more accurate but it fits just to one path and ingores the other movements on the other sides
Sweep uses a shape along a path. I don't believe this is going to be accurate as the shape sounds like it is not uniform along the entire path.
second solution
i have conected the points by hand on each side and made closed 3d poly and then with surfpatch command you can make a surface out of these closed 3d poly and the with sculpt command you can build a solid out of surfaces
It seems ok but not on all surfaces if the surface has no curve is it is ok but if you use surfpatch command on curved polylines it makes funny surfaces with no reason
You can explore meshes and how to mainpulate the vertices. But, again with only minimal point locations then it is all approximate.
I really do not know why Auto cad is that much weak and unaccurate in these subject because the target is clear we have to be able to prepare solid from different inputs it can be 3d poly it can be points why they haven't seen these problems in this software
Hanif
I really think we need to look at the TXT file and how it is getting imported. Feel free to attach the data and the command (lisp routine?) that you are using to bring the data into AutoCAD.
John Vellek
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