Bug in the XYShapeAnnotation

[Zlatogorov]

In the class XYShapeAnnotation , lines 179,180, 186,179

Code: Select all

 double m00 = (xx1 - xx0) / (x1 - x0);
double m02 = xx0 - x0 * m00;

Code: Select all

 double m11 = (yy1 - yy0) / (y1 - y0);
 double m12 = yy0 - m11 * y0;

if we try draw horizontal or vertical line than x1==x0 or y1==y0,the result of by dividing m00 is NaN , and following AffineTransform don't work.
Please fix.

[david.gilbert]

I confirm this is a bug. It's not obvious to me, just yet, how to fix it.

[John Matthews]

Examples here and here avoid the problem by using a similarly stroked XYLineAnnotation.

[Zlatogorov]

Code fix:
double m00 = (x1 - x0 == 0) ? 0 : (xx1 - xx0) / (x1 - x0);
double m11 = (y1 - y0 == 0) ? 0 : (yy1 - yy0) / (y1 - y0);