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Ported Polygon->is_valid() and ExPolygon->is_valid()

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This commit is contained in:
Alessandro Ranellucci 2013-08-26 23:27:51 +02:00
parent da0b85c0d9
commit fe42427a54
13 changed files with 37 additions and 54 deletions
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10
xs/src/ExPolygon.cpp
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@ -40,6 +40,16 @@ ExPolygon::area() const
return a;
}
bool
ExPolygon::is_valid() const
{
if (!this->contour.is_valid() || !this->contour.is_counter_clockwise()) return false;
for (Polygons::const_iterator it = this->holes.begin(); it != this->holes.end(); ++it) {
if (!(*it).is_valid() || (*it).is_counter_clockwise()) return false;
}
return true;
}
SV*
ExPolygon::to_SV() {
const unsigned int num_holes = this->holes.size();