cylindrical projection

[sjupin]

hi,

I need to build a orthoprojection on cylinder of a model of a tower. the goal would be get somehow
a orthophoto of cylindrical projection. does anyone knows how to do it ?
could be a new feature too :-)
thnks for the replies.

[Alexey Pasumansky]

Hello sjupin,

You can export model, create corresponding UV map for it in the external application and import it back to PhotoScan. Then generate a texture using Keep UV option.

[James]

Blender allows you to unwrap to a cylindrical projection.

I didn't find it completely intuitive, but tweaked enough options that it worked eventually (a while back - i dont remember how to do it now)

[Dieter]

You can do it in meshlab or in cloudcompare, i normal use meshalb.

[sjupin]

thnks for your replies.
could you tell me what filter do you use in meshlab to do it ?
thks

[Dieter]

Move the middle of the mesh to coords. 0,0,0
then use filters/smoothing......./geometric cylindrial unwrapping
input a radius to unwrap

ready