I was given a 2D Topo file and need to get a tin from it using microstation v8i and geopak. It is my frist time trying to do this task and I am using the extract graphics tool. In my file I have all the levels turned on and the only terrain features I can see are contour lines. I tag those lines, make the dat file and build my triangles but I end up with large voids. I have used multiple feature types with both extraction and interpolation and was wondering if there is something I am missing about this process?
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