What to ask of the surveyor


GeneDavis
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X6.  I have not used a surveyor's data for topo, but will be trying it soon.   Thus far, I have pasted a .jpg of a plat with gradient lines, and traced over to produce terrain elevation lines.

 

I've a guy who will give me the topo in .dxf and .dwg., 1-foot gradients.  How will this go?

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In general, too much information can lead to an unnecessarily complex and processor-gobbling terrain.  I tend to only do 2 or even 5 foot contours and sometimes just trace over rather than importing to keep the line segments fewer, and just let Chief do the interpolation between them.  You can tweak those to get Chief's interpolation closer to the actual survey CAD.  I have tired direct importing many times, and more often than not have to revert back because it just bogs the computer down too much.

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