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Topic ClosedDividing contour lines
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Vladimir Michl View Drop Down
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Arkance Systems CZ

Joined: 26.Jul.2007
Location: Czech Republic
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Points: 2118 		Direct Link To This Post Topic: Dividing contour lines
    Posted: 18.Jan.2013 at 11:26
Another option would be to reconstruct the 3D digital terrain model from your contours and then re-create contours (more densely) from the DTM.
Vladimir Michl (moderator)
ARKANCE - https://arkance.world - Autodesk Platinum Partner
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CarlB View Drop Down
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Joined: 16.Oct.2009
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Points: 321 		Direct Link To This Post Posted: 18.Jan.2013 at 08:45
You could use the lisp routine from the below site to generate intermediate contours.
I don't believe it has options for multiple intermediate contours though.

http://www.jefferypsanders.com/autolisp_Rollin.html
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heinsite View Drop Down
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Joined: 05.Feb.2009
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Using: AutoCAD 2014
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Points: 640 		Direct Link To This Post Posted: 18.Jan.2013 at 06:36
If you don't have a program like Civil 3D you may be out of luck.  You're going to have to draw perpendicular lines between critical areas, divide them into 10 increments, and then fit a spline thru the points.  If all you have are two contours to do this with the manual effort shouldn't take too long.  If you had a full drawing with many contours it would be a nightmare.  But if you need to get the work out I'd attack it this way and look for a better method somewhere on down the line.

Dave.
Dave Hein, P.E.
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Kona International Airport
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edwinjebb View Drop Down
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Location: Ireland
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Points: 2 		Direct Link To This Post Posted: 17.Jan.2013 at 17:53
i have two contour lines noting increments of 1m but i want to divide the space between them evenly so that they read as 100mm roughly. I know this isn't accurate but it gives the topographical idea. Offsetting doesnt work because it needs to be evenly divided in 10 parts at the fat and thin areas.
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