Steven P Posted November 12, 2023 Share Posted November 12, 2023 Sunday night so my brain is asleep and I can't remember how I did this.... Given a point with 0 elevation how do I get the point including elevation of a line above it. For example, my point: ( 5 5 0 ) is under the line (2 5 10) (8 5 20), I want the value between 10 and 20 corresponding (here it should be 15) And I can't remember how! Thanks for any tips Quote Link to comment Share on other sites More sharing options...
BIGAL Posted November 12, 2023 Share Posted November 12, 2023 Its a ratio thing, (dist1 / tot dist) so get horizontal distance between end points and the distance from say start point to point, in XY plane. height of end points So ((Ht1 - Ht2) * dist ratio) + ht1. Check with calculator. 2 Quote Link to comment Share on other sites More sharing options...
Steven P Posted November 13, 2023 Author Share Posted November 13, 2023 Thanks, will do it that way. I was thinking I'd seen a VLA- something somewhere, maybe not - your idea will work. Quote Link to comment Share on other sites More sharing options...
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