[OpenJDK 2D-Dev] RFR 8144718: Pisces / Marlin Strokers may generate invalid curves with huge coordinates and round joins

[Jim Graham]

I'd make the test >= 0.5 since 0.5 generates a flat curve as well.

And it couldn't hurt to mention that we are worried about round off 
error since someone coming along might wonder why we're worried that a 
cos() is > 1:

// check round off errors producing cos(ext) > 1 and a NaN below
// cos(ext) == 1 implies colinear segments and an empty join anyway

		...jim

On 12/4/15 8:33 AM, Laurent Bourgès wrote:
> Hi,
>
> Please review this webrev  fixing the Stroker bug in both Pisces &
> Marlin (same changes):
> bug: https://bugs.openjdk.java.net/browse/JDK-8144718
> webrev: http://cr.openjdk.java.net/~lbourges/marlin/Stroker-8144718.0/
>
> As this bug is very difficult to reproduce (artefacts), I just provide a
> simple test class that reproduces the issue.
>
> Regards,
> Laurent Bourgès