reverted chipload algo, have to investigate why it doesn't work now.
made shapely obligatory by now. It has been tested on all platforms allready, and I want to move forward to complete replacing of Polygon.
this enables to project a curve towards another curve, and do the sampling along the way - this enables undercuts for 3 axis! and should be also usefull for n-axis.
-disabled parallel step-back in combination with layers, this shouldn't be allowed also before.
-small code reorganisations.
-ramps for curve to path
-fix several zero divisions in ramps
-add some comments
-commented unused outlineimage functions
-some small tests in CrazyPath
this works for both exact and non exact mode now. You simply model a cutter in the desired shape, but it has to be rotary object. it should not be rotated in world coordinates. You assign it to the cutter definition. It get's auto scaled to the pre-set diameter - the total dimensions of the cutter object get scaled to the diameter. it works nicely so far.