CODEWITHSUNDEEP
algorithmmathgraphicsbounding-box
Pyramid
Pyramid

Reputation: 51

Pie slice bounding rectangle

How can I calculate a pie slice bounding rectangle. Radius (r), center point (x0, y0) , StartAngle (a0), EndAngle (a1) and drawDirection (clockwise or counterclockwise) variables are known.

Upvotes: 4

Views: 695

Answers (2)

Dr. belisarius
Dr. belisarius

Reputation: 61046

alt text

HTH!

Upvotes: 4

David Rutten
David Rutten

Reputation: 4806

Compute the points at the end of the arc edge, the point at the center of the slice and any of the four extreme points (angles 0, 90, 180 and 270) if they are contained within the sweep angle. Then all you have to do is iterate over all the points and find the minimum and maximum x and y values.

Upvotes: 7

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