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.
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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.
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For any other condition, the centroid is the centroid of the face of the seed feature.
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If there is more than one seed feature, the centroid of the first seed feature is used.
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If the seed feature is generated from a sketch that includes multiple contours, the centroid of the largest closed contour is used.