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Re: gEDA-user: PCB DRC crash with due to bloat / shrink breaking gemoetry

Peter Clifton wrote:

On Mon, 2010-09-13 at 06:00 +0000, Ineiev wrote:


Or ensure that the results of RectPoly are checked. I find single
place to modify:


Shouldn't be a problem in the dicer. From recollection, poly_* boollean
routines check for NULL one one of the two input polygons, and will
return the appropriate result for the requested boolean operation.


poly_AndSubtract_free appears to assert rather than check.


In addition, I'm fairly sure the dicer won't generate bad rect polygons.


It won't, if the square of the polygon is non-zero:


       poly2 = RectPoly (p->xmin, (p->next->xmin + p->next->xmax) / 2,
                         p->ymin, p->ymax);



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