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Polygon question - hex longer than width; datum feature; True Position

wish2bflying
First post; be gentle. …

I've been given this shiny turd. The hex length is greater than the width. I've constructed a width feature across the two hex shapes to use as my Datum B "feature of size", but I'm a little stumped on how to report the TP of the polygon when it doesn't show the size properly. Have I missed some feature where I can tell PC-DMIS that the hexagon shape is longer than it is wide? You can see the points I've taken that show the true shape of the hex shape. I thought there might be a "constructed polygon" option, but I haven't found it yet.

I've searched the forum but didn't find anything like this. Most of the discussion of polygons is of regular shaped ones.




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  • you could try this: (USE at your own risk)

    Have your cad person give you data with a SQUARE SLOT the same width & length of that, then program a square slot to measure it, using the WIDTH option and set the radius to an acceptable value to hit on the long flats. This will make Pcdmis measure 2 hits on each long side, then 1 hit on each end (point) centered to the width of the long sides. It will not give you the correct length, but it SHOULDl give you the correct center point. It is worth a try at least.

    You could also use all those points you are measuring, constructed lines, constructed intersection points and some additional constructed lines & points, and MAKE a generic square slot out of the data.
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  • you could try this: (USE at your own risk)

    Have your cad person give you data with a SQUARE SLOT the same width & length of that, then program a square slot to measure it, using the WIDTH option and set the radius to an acceptable value to hit on the long flats. This will make Pcdmis measure 2 hits on each long side, then 1 hit on each end (point) centered to the width of the long sides. It will not give you the correct length, but it SHOULDl give you the correct center point. It is worth a try at least.

    You could also use all those points you are measuring, constructed lines, constructed intersection points and some additional constructed lines & points, and MAKE a generic square slot out of the data.
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