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Greater control in segmentation tool

Posted: Thu Mar 13, 2014 2:25 pm
by andrewmcunliffe
Hi,

Would it maybe be possible to increase control over the segmentation tools; for example, by segmenting a sphere with a specifiable radii around a user-selected point?

(My application has many overlapping scans around the same site, so I'm trying to only incorporate data from a few of the closest and most accurate scans in the final registered model).

Cheers, Andy

Re: Greater control in segmentation tool

Posted: Thu Mar 13, 2014 2:49 pm
by daniel
It may be a bit 'heavy' to add such an option to the segmentation tool.

But you can do this "manually":
  • use the point "Point list picking' tool to select the center point and create a new cloud with it
  • compute the distances between the original cloud (as 'compared') and the new single point cloud (as 'reference') - use a very low octree level as the computation might be very long.
  • eventually segment the original cloud based on its distances to the single point (with "Edit > Scalar Fields > Filter by value")

Re: Greater control in segmentation tool

Posted: Fri Mar 14, 2014 1:19 pm
by andrewmcunliffe
Thanks, I'll try that solution