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Did you use the 'auto' button of the normals computation dialog? And if the normals are mostly black, then they may be simply globally inverted (use the 'Edit > Normals > Invert' method to invert them). Hi Daniel, I have a question about inverted normals. I have some noisy clouds, I compute normals...

Hi Daniel,
I have another problem. I attach a screenshot

I got.
Resuming, to have a good result I have to set a slide thickness to 3 mm and a gap of 0.097 to extract a serie of contours every 10 cm.

Thank you very much for the patience Daniel

Hi, I find this tool very useful but when I mistake tracing a polyline there's not a way to undo the last command...

Hm. I'm not sure to understand well. If I want extract a serie of slices and contours every 10 cm I guess to set in the "box thikness" a value of 0.10 and in the gap a value of zero? Right?

HI Daniel, a fundamental question to understand better. If I want extract a series of contours every 10 cm, which parameters should I set?

Thank you

I'm sorry but the correct settings are these, with the gap fixed to zero.

Maybe it's not correct?

I'm setting the thickness of the slices and the space between the contours in the way show in the screenshot.

Hi Daniel, thank you.
I tried to reduce the thickness of the slices to 5 cm but I get the same problem. The same thing happens when I try to extract even only one contour..

I attach two screenshot

Hi,

I'm tring to extrac some sections from a point cloud using the tool Cross Section-->Slices-->Contours, but I'm noting that the polyline doesn't fit well to the shape of the cloud.

What could be the problem?

I attach two screenshot.

Thank you!