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moraldi · Posted: Tue Oct 27, 2009 7:44 am Post subject: Center of objects

Hi,
Could you please someone help me on the calculation of the center of an object using the vertices data from a .dxs file?

Thanks

Mr.Fletcher · Posted: Tue Oct 27, 2009 7:54 am Post subject:

Depends on what center you mean. You can calculate it differently. You may take the bounding box of the object for instance, and calculate its center. Or you calculate the arithmetic or geometric mean of the vertices (sum of all coordinates divided by the number of vertices). If you want the center as a point inside the mesh of your object, that's going to be a lot more difficult Razz

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moraldi · Posted: Tue Oct 27, 2009 8:16 am Post subject:

All I need, is the reading of the center that is displayed in the Object Inspector

Mr.Fletcher · Posted: Tue Oct 27, 2009 8:53 am Post subject:

I think this is the center of the bounding box, not sure though
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Starnick · DeleD PRO user Joined: 28 Jul 2007 Posts: 611

moraldi · Posted: Tue Oct 27, 2009 9:01 am Post subject:

I don't know how to calculate the center of the bounding box Embarassed

Mr.Fletcher · Posted: Tue Oct 27, 2009 9:13 am Post subject:

Well first you calculate the bounding box, which is the minimal and maximal value of all vertices of the object in all three dimensions. Then you take this minimum and maximum and the resulting center is (min + max)/2 for all three dimensions
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moraldi · Posted: Tue Oct 27, 2009 9:36 am Post subject:

It was so simple, shame on me! Embarassed

Thanks!