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Sketch Driven Pattern 2

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battlehands

Electrical
Apr 12, 2011
19
US
I cannot find a satisfactory explanation of the difference between the Reference point options in the Sketch Driven Pattern Property Manager.

Centroid
Selected Point

Please explain. This is time sensitive, so a quick response will be greatly appreciated.

TIA,battle
 
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My simple approach is to NEVER use centroid. I don't like such lack of explicit control in a feature.
 
I have read the help menu, and I just tried it on a part that is not symmetric with respect to the pattern, and I'm still unclear. I can see what's happening, but I don't understand.
Can someone state it explicitly,clearly?
 
If you select centroid as the reference point for a table-driven or sketch-driven pattern, the system determines the centroid based on the type of seed feature.

For cylindrical, conical, or revolved features, the centroid is the intersection of the axis of revolution with the X-Y plane of the pattern.

If the sketch consists of lines and arcs, such as rectangles or oval shapes, and if the sketch plane is parallel to the X-Y plane, the centroid is defined as the centroid of the sketch.

For any other condition, the centroid is the centroid of the face of the seed feature.

If there is more than one seed feature, the centroid of the first seed feature is used.

If the seed feature is generated from a sketch that includes multiple contours, the centroid of the largest closed contour is used.


Dan

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