Surface From Contours

[khalidisi]

Hi..

I have created a surface from polyline contours "originally 12 MB". The surface, however is 105 MB.

So, I thought if I deleted the polylines, the file size would be reduced considerably.

So, I went ahead and started by selecting all the polylines and erased them!!!! A CRASH!!!

Fatal errors of all sorts have been occuring... UNDO.ac$ file reaches 1 GB and C3D 2009 crashes!!

"FATAL ERROR: Unhandled e06d7363h Exception at 7c812a5bh".. keeps bugging me..

I tried searching everywhere.. but had no luck in solving this problem..

I am desperate.

Any suggestions???

Thanks in advance.

[sinc]

First, if you can get the surface data in a different format (LandXML, the TIN triangles, etc.), you'll get a better result than if you try to build a surface from contours.

But if contours are all you can use, then you probably need to adjust the weeding and supplemental factors, so you don't add so much data to the surface definition. The proper settings for weeding and supplemental factors will vary depending on what your source contours look like, and it usually takes some trial-and-error to get a good result.

There are explanations of the supplemental and weeding factors in the help.