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Creating a 3d contour model

J Parkin

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Im trying to create a 3d model of a hilly site, with little success.

Waht I have done is imported a Tiff of the contour map, traced the countour lines with polygons

then used the "convert 2d polygons to 3d contours"


up to this point is fine, I end up with a group of polygons layered above each other that look like a 3d model.

However none of the sitework tools work, all say ' your drawing contains no DTM"

What am I missing here? I think im doing it exactly as the manual states.



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Also, make sure you don't have process beds or update existing or create proposed checkmarked.

If you have proposed or update existing checkmarked, you can get a related error since currnetly, you do not have a dtm in the drawing.

Jason, if you want me to take a look at the file, you can go ahead and email it to me. I know last week was a strugle to get the DTM operational with the data.

[ 01-15-2003, 09:40 AM: Message edited by: Katie ]

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