Extract Measured From Point Cloud

[cappleby1]

I have a Model and have picked features from the model that I would like to measure.  I have measured and aligned my point cloud.  I now go to "Extract measured to use point cloud data but I get an error saying that not all of my features could be extracted. What is the problem?  does anyone else know of any work around for this issue.  I have planes that wont measure but there is plenty of point data around the planes.  Is there a way to get this to work?

Thanks

[jrayself]

There is a TON of reasons why a feature wouldn't extract. I'd need to see the project to effectively troubleshoot it.

[cappleby1]

Thanks for being the first person to reply back to me. ;D

I guess what I'm trying to get at is not why it wouldn't extract on this particular case but just some basic guidance and work around for extracting points from a point cloud.  Usually this is most problematic when I have a small edge that I want to pick as a plane on the model then extract it after I have measure the point cloud.  The edge may not be "good enough" to be considered a plane.  On a model a small edge can be picked as a plane easily but to extract that plane from the point cloud is hard because the edge is not perfectly flat.

[jrayself]

Are you trying to calculate trim edge deviations on a sheet metal part? Ifo so, comparison points would be a better option.

[cappleby1]

I unfortunately can't upload this project because it contains confidential information.  Yes it would kind of be similar to sheet metal but it is plastic, a plane that is the end of a cylinder. The cylinder wall is about .125 thick.  I wanted to do i distance from one end of the cylinder to the other using the plane to plane measurement.  My scanned points at the end of the cylinder fail to create the plane I picked on the cad model.

[jrayself]

I would guess that either:
The cylinder is too far out of location;
or that there aren't enough data points to extract the measured value.

Are you able to manually fit a plane to the cloud?

[jrayself]

Now that I know where you're working, and have a pretty good idea of what you're working on...

We were touch probing most of those features with the FARO Sensor Probe, rather than scanning.

[jvenlet]

You could go about it the long way.  Construct sheet metal points (edge points), then construct a plane from the points.  After doing the same on both sides, you should be able to get the distance between the two planes.

[cappleby1]

I appreciate the suggestions I will try them at the next opportunity and post a reply.