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Want to draw a polygon On topography

I am dealing with Topographical 3D Surface Plot. I want to draw a polygon
On topography. Let’s say landslide on 3d dem.
How can I do that?

Hi @doga,

You might be able to do what you want with a scatter3d trace with mode='lines' . If the coordinates of the line match the coordinates of the surface then the line should appear to be on the surface.


1 Like

Thank you …