Extract cloud sections along polyline: project the resulted polylines ?

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viralata
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Joined: Tue Jan 05, 2016 4:48 pm

Extract cloud sections along polyline: project the resulted polylines ?

Post by viralata »

Hello all,
Thanks again for this wonderfull software.
I used the Extract cloud sections along polyline with a 3D polyline (double curvature) drawn by picking point on the cloud. I can extract nicely the sections envelopes and cloud sections that are in 3D (still along the polyline and perpendicular to the polyline).
Is there a way to project all those polylines on a plane ? When I try the unfolding it unfolds only the cloud sections, and not perpendicular to the polyline but along an axis (Z).
Thank you
daniel
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Re: Extract cloud sections along polyline: project the resulted polylines ?

Post by daniel »

Yes, the 'unfolding' option is for the cloud (see https://www.cloudcompare.org/doc/wiki/i ... a_polyline)

And sadly I don't see an easy way to project the polylines on a plane.

If you want to project them on the XY plane for instance, you could select the vertices of the polylines (once exported - and you can right click on the parent group and use the 'Select children by entity or type' option). Then use 'Edit > Multiply / scale' to set all Z coordinates to 0 (for instance).
Daniel, CloudCompare admin
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