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svg-flatten: add drill handling to outline mode

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jaseg 2022-06-18 17:29:27 +02:00
parent 1622e9c943
commit 14e9d7fbc2
17 changed files with 128 additions and 9 deletions
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27
svg-flatten/src/nopencv.cpp
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@ -483,6 +483,33 @@ double gerbolyze::nopencv::polygon_area(Polygon_i &poly) {
return acc / 2;
}
double gerbolyze::nopencv::polygon_perimeter(Polygon_i &poly) {
double acc = 0;
size_t prev = poly.size() - 1;
for (size_t cur=0; cur<poly.size(); cur++) {
double dx = poly[cur][0] - poly[prev][0];
double dy = poly[cur][1] - poly[prev][1];
acc += sqrt(dx*dx + dy*dy);
prev = cur;
}
return acc;
}
d2p gerbolyze::nopencv::polygon_centroid(Polygon_i &poly) {
double acc_x = 0, acc_y = 0;
double area = polygon_area(poly);
size_t prev = poly.size() - 1;
for (size_t cur=0; cur<poly.size(); cur++) {
double a = poly[prev][1]*poly[cur][0] - poly[cur][1]*poly[prev][0];
acc_x += (poly[prev][0] + poly[cur][0]) * a;
acc_y += (poly[prev][1] + poly[cur][1]) * a;
prev = cur;
}
return { acc_x / (6*area), acc_y / (6*area) };
}
template<typename T>
gerbolyze::nopencv::Image<T>::Image(int size_x, int size_y, const T *data) {
assert(size_x > 0 && size_x < 100000);