interpolation contour lines

[lotemsegal]

Hello,

i draw contour lines over a big area of planing. i draw them every 1 meter and gave them an elevation in their properties. now i want to draw lines every 20 cm. can i do that automaticly with some kind of interpolation command?

[halam]

You would have to use the DTM terrain data to start with. A Method to use interpolation does not give real correct (extra) information. I would advise working with civil3d. Or otherwise look for triangulation tools in lisp, there a a few around..

[lotemsegal]

thank you,

Can you refer me to those lisp or to the method of working in Civil?

i have no idea how to start..

[halam]

Google "creating contour lines using civil3d"

and theswamp.org " triangulate / "contours"

i am using a mobile phone right now.. Can't give you the right links in a click ;-)

[tombu]

thank you,

Can you refer me to those lisp or to the method of working in Civil?

i have no idea how to start..

 

In Civil contours are a way of displaying a surface defined in a Surface Style on Contours tab → Contour Intervals. Once defined in Toolspace → Settings → Surface → Surface Styles you simply switch Surface Styles in Prospector for your surface to one that displays lines every 20 cm.

[BIGAL]

Q1 do you have CIV3D ? If yes use "create surface from drawing objects" "lines" just explode your contours if they are plines. Like tombu you then use a Contour "Style" for display.

 

Q2 I take the answer to Q1 was No, search here for Triangulation there are a number of programs available that work in plain Autocad. Its either YZ or YMG who posted.