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Flow Lines

Flow Lines

Flow Lines

(OP)
I want LDD (autocad) to automatically place flow lines
into a site based on its contours and show the basins
used to create the flow lines...I've been told by Autodesk
its not possible...I refuse to believe so though...If anyone can help, please do. Thanx.

RE: Flow Lines

What they may be meaning is that once you get your contour lines you know only that as definition of the terrain. To draw lines of maximum slope you need to postulate (invent) some way to proceed from the contour lines. Of course, contrarily, if you have a complete closed 3D surface defined for the terrain, one way or another you have enough data to find, define and plot the maximum slope lines.

RE: Flow Lines

(OP)
I do understand how to do it manually..and don't wish to
invent any method to creating the flow lines...I want
Autocad or LDD to automate the process...

Thanx anyways.

RE: Flow Lines

sure, water drop.  It will show the path that the water flows.  I don't recall if it will delineate the watersheds for you, however with minimal practice it goes very quickly by hand.

RE: Flow Lines

Acad is not the best software for this application.  ArcView however does have extensions--watershed delineator--that is able to map the flow paths and delineate the watersheds based on TIN or DEM information.

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