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Monday, February 16, 2009

Parking Lot Surface II

The last post we set up the surface and indicated a problem with the mid-ordinate distance when adding breaklines to the surface. In this post I'll investigate the problem further. First I'll re-add the breaklines to the surface with a smaller mid-ordinate distance.

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We can see from the picture below that with the smaller mid-ordinate distance the contour follows the curb better, but also causes problems in the surface with the contours not exactly being where they need to be.

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A larger view of the surface showing the problem.

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To clean up the surface I'm going to create a corner to catch all of the smaller triangles around the curb radius. This will prevent the triangles from going place we don't want them to go.

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We can see TIN surface collecting all of the TIN Triangles from the radius curve.

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In the next post I'll modify part of the surface to remove one of the two low points.

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Related Posts:
Parking Lot Surface I
Parking Lot Surface II
Parking Lot Surface III
Parking Lot Surface IV
Parking Lot Surface V

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