getting the plane coordinate of a probing plan

[benalain13]

Hi

Since i do not find any IDEASTATION group for PI, i send this question or enhancement query on this group

when we probe a plan,, there would be the utility to get plan coordinates...


It can be useful (and some competitor softwares give that...)
thanks

[Philip_Hewitt]

Hi @benalain13 

Thank you for the suggestion.  We have actually considered this before but found it quite difficult to come up with a satisfactory definition of WHICH coordinates to show.

With the very simplest cases- for example a plane at a fixed Z height, let's say Z=10- it seems intuitive that a useful coordinate to report is (0,0,10)- the intersection with the origins on the other axes.  Even if the measured plane is nowhere near the x,y origins this seems it probably would be useful information.

If we are to implement and support the functionality though, we need to find a way to report information that works on real probed (and other) planes, even if they are not aligned with the axes.  What result coordinates would you expect to see for a measured plane that is not aligned with one of the main x.y.z axes?

AngledPlane.jpg

Note also that you can already find the coordinates of a point on the plane using the 'Projected Point on Plane' feature.  This allows you to find the coordinates at the point you are interested in (but you do have to have this extra step of defining the 'point of interest' with a geometric feature.)  Compared with what you have suggested
Downside:  an extra step to specify the point
Upside:  you get to specify the point, so you will get the coordinates at exact the point you are interested in.
ProjectedPointOnPlane.jpg

https://knowledge.autodesk.com/support/powerinspect/learn-explore/caas/CloudHelp/cloudhelp/2020/ENU/...

Does the 'Projected Point on Plane' give the result you want?
If not, do you have any suggestions about how to choose the coordinates when the plane is angled to the axes?

[thierry.serrat]

Hi Phil

The customer wants to know the position of a point which would be on a plane.
This point can be the barycenter of the probed points or the origin of the WCS projected on the plane.

A plane definition is a point + a vector.

PI displays the plane vector, in addition of that they would like to display the coordinates of this point, and indicates what is this point (barycenter, projected origin, other….).

Some other metrology softwares are doing that  (Quartis, Cosmos, Métrolog).

This is only an information but is very useful especially during programation steps ; 

thanks & regards

alain