Anonymous Coward

10-09-2000, 12:22 PM

Having a model with a list of polygons, how can I find the bounding box for this model?

View Full Version : Bounding boxes. A good way to find them ¿?

Anonymous Coward

10-09-2000, 12:22 PM

Having a model with a list of polygons, how can I find the bounding box for this model?

10-09-2000, 12:45 PM

just go through your list of vertices and find the 6 values which have the min & max x, y, and z values and that gives you the 2 vertices you need to define a bounding box.

ie. furtherst upper left and closest lower right.

ie. furtherst upper left and closest lower right.

Anonymous Coward

10-10-2000, 03:42 AM

And if the model is like a cylinder? How canI get the centre of the model, to find a bounding sphere?

julien

10-10-2000, 04:20 AM

For any kind of convex objects, you can find the 'center' by calculating the barycentric point of the object. How to do it ...

Just sum the x value of each point of your object and then divide the result by the number of points ... same for y and z and that's it you have the center.

Just sum the x value of each point of your object and then divide the result by the number of points ... same for y and z and that's it you have the center.

Anonymous Coward

10-10-2000, 10:24 AM

True...thx...

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