Topo Tools Section Profile Tool

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Topo Tools Section Profile Tool

Postby Don MacNair » Wed Sep 14, 2016 1:38 pm

My question has to do with the profile created using the section profile tool. I checked the manual and didn’t find any answers, hence the message. The profile is always shorter the section line. I am looking at large swaths (line of sight distance of 5000' - 10,000' across contours) so it makes a difference in the accuracy of the profile. As an example, if I draw a section line say 1,596.35’ from the start to the center of the lable circle, the profile created measures 1,439.24’, end to end. I noticed this because some of the topo information was missing on the ends of the profile.

Is there a rule (distance from ends of the section line) I am missing. Maybe the key is to not start at a viewing point but extend the section beyond both ends. In this case I need accuracy, so that may not be the best solution.

Anyone have any thoughts. (actually, is anyone reading this these days? It is disturbingly quiet)
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Re: Topo Tools Section Profile Tool

Postby Alfred Scott » Wed Sep 14, 2016 7:25 pm

Don,

As I recall, the length of the chart is the length of the intersection points of the lines with the topo contour lines.

Alfred
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Re: Topo Tools Section Profile Tool

Postby Don MacNair » Thu Sep 15, 2016 10:05 am

Thanks Alfred I'll check into it further. I am working at 100 scale so there is a ton of data.
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