How do I make an inner rounded rectangle and an outer rounded rectangle be parallel around the corners?

Question

The outer radius does not follow the inner radius. I am currently using x = width/4 + radius + outset, y = height/4 + radius + outset. I think the outset needs to be some ratio of the hypotenuse.Please view my image on the link.

rounded rectangle link

score 2 · Accepted Answer · edited Mar 27 '16 at 16:53

2

Make the centers of the quarter-circles the same. This means that the radii must differ by the distance between the rectangles and the distances between the horizontal and vertical sides must be the same.

edited Mar 27 '16 at 16:53

Ian Miller

11,844

answered Mar 27 '16 at 16:45

marty cohen

107,799

Thank you, this answers my question. I was adding the outset to the radius origin rather than to the radius. – Gordon Mar 27 '16 at 16:56

How do I make an inner rounded rectangle and an outer rounded rectangle be parallel around the corners?

1 Answers1