How do you rotate a polygon?

Question

I'm attempting to rotate a polygon around a fixed axis using the rotate method in Graphics2d. However, after each rotation, the bounding box coordinates of the polygon don't seem to be updating--only the graphical representation. How might I go about fixing this?

score 1 · Accepted Answer · edited May 23 '17 at 12:28

1

You are using a library method that simply does a graphical transform. It is working the way it was designed. To get the new coordinates, you will have to do the math.

EDIT: Here's a link to another question that has all the math you need.

Drawing a Rotated Rectangle

edited May 23 '17 at 12:28

Community

1
1

answered Mar 31 '13 at 00:57

Jeff Wolski

6,332
6
37
69

That's what I figured. Could you give me some insight regarding the required math? – Collin Dutter Mar 31 '13 at 00:59

How do you rotate a polygon?

1 Answers1