Why are the contours from the two different products not intersecting at the same place on the breakline below. Does the Carlson model include this as breakline data?
It would be relevant in your exercise to compare the Carlson triangulation.
The Carlson Tin isn't the same as the Civil Tin I should have got a copy of the tin also not just a few contours, but I didn't. I was adding supplemental points to try and get straighter contours. I usually start with no supplemental points and add breaklines in a few at a time in case I need to make changes. The contours only slightly straighten without the supplemental points, sometimes they straighten up with more though.
Adding more points and triangles typically won't make contours straighter, it will make them have more bumps as a new vertex is added to the contour at every triangle edge.
I would suggest looking at the two TIN files and figure out what is different there.
Who ever drew the "straight" Carlson contours ignored the breakline in the area I circled, and has now created a Bust in the grading.
This breakline may be a Top or Toe of some type of pad for instance.
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