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Posted

Hi everyone,

 

I don't know if it's even achievable or not, but I thought I'd post it anyway.

What I need is this :
user inputs:

  • Elevation difference
  • Offset slope
  • maximum elevation

Offset a 3D polyline using the given elevation difference and  slope (%)

check if one of the vertices is above the maximum allowed elevation, then change the slope (decrease the slope) so all the vertices are bellow the maximum allowed elevation.

Anything that can help is really appreciated !
Thanks in advance 🙏

Posted

There are several AutoLISP routines out there, some of them free, that will draw contours for you. It shouldn't be hard to modify one of them to do what you want. You'll have to identify the highest point on your polyline and use that to calculate the parameters of your drawing function.

Posted

As your playing with 3D elevation & slope parameter in simple terms would be a distance, but a 3dploy can have twists and turns so which direction is the new point implied?

 

Need a dwg to look at.

Posted

Give CadTools a try, it has a lot of tools for contours and similar.

 

 

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