Variance is a 2D geometric analysis tool based around a shape engine and a high performance Monte Carlo engine.
Boolean with contouring, and auto-keyholing:
Shape engine using layout, with auto-keyholing:
Boolean with contouring and proximity bias:
Spacing/enclosure calculation:
Complex calculation expressions:
DOE layout (including DOE layout from iDRM or Quilt (https://github.com/philstopford/Quilt_GPL)):
Replay of case calculation, allowing fail cases to be understood: