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Obtain point at minimum measurement?

KenFarley
21-Topaz I

Obtain point at minimum measurement?

I'm working with a part that has complex curvature. I wish to place a point at the position on the surface that is at the minimum distance from a plane which does not intersect the surface. I can use

 

Analysis->Measure->Distance

 

and I'm provided with the measured distance and an indication of where on the surface the minimum occurs. What I would like is to have a way to determine exactly where in space that minimum point is, either by creating a point at the location on the surface, or by getting some XYZ coordinates with respect to a coordinate system, etc.

 

Is this possible? Is there some trick with relations that will let me extract the XYZ coordinate values from the measure, or something like that?

1 ACCEPTED SOLUTION

Accepted Solutions
tbraxton
21-Topaz II
(To:KenFarley)

I thought of a better approach to this assuming you do not have BMX. Create a measure distance feature to get the min distance and then edit the definition of that feature and add the optional datum points in the measurement feature. This will drop a point on the surface at the min distance without any iteration on the users part as shown in the video I posted above.

 

Add datum points to measure distance featureAdd datum points to measure distance feature

 

========================================
Involute Development, LLC
Consulting Engineers
Specialists in Creo Parametric

View solution in original post

3 REPLIES 3
tbraxton
21-Topaz II
(To:KenFarley)

If you have BMX you can use a minimize goal in an analysis feature to have the computer place the point (field point) at the desired location. The software will update it with each regen of the model. You can then create another measure feature from a datum to the point at the min distance and use the feature parameters in relations etc.

 

Without BMX I think you will have to manually create/locate the point iteratively.

 

See the video for how to set it up manually.

 

 

========================================
Involute Development, LLC
Consulting Engineers
Specialists in Creo Parametric
tbraxton
21-Topaz II
(To:KenFarley)

I thought of a better approach to this assuming you do not have BMX. Create a measure distance feature to get the min distance and then edit the definition of that feature and add the optional datum points in the measurement feature. This will drop a point on the surface at the min distance without any iteration on the users part as shown in the video I posted above.

 

Add datum points to measure distance featureAdd datum points to measure distance feature

 

========================================
Involute Development, LLC
Consulting Engineers
Specialists in Creo Parametric

This is exactly what I was looking for.

Odd thing, when I create a feature from the analysis, the only option tab I see when I Edit Definition is the one that says "Analysis". I have to either expand the width of the popup window or click on the tiny right arrow to see the "Feature" items. There's gotta be some sort of weird settings for the text, maybe?

 

I didn't necessarily need the point to be exactly to the last angstrom on the minimum, so previously I was iterating with measuring, checking position, etc. It was a big old pain - this makes it a 20 second job. Excellent.

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