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Getting more encouraging

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Erica Fischer
2023-10-27 14:05:43 -07:00
parent 546d2fd63d
commit ba21d561ef
1 changed files with 32 additions and 12 deletions
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earcut.cpp
+22 -2
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@@ -79,6 +79,23 @@ drawvec fix_by_triangulation(drawvec const &dv, int z, int detail) {
while (again) { while (again) {
again = false; again = false;
for (size_t i = 0; i + 2 < indices.size(); i += 3) { for (size_t i = 0; i + 2 < indices.size(); i += 3) {
std::vector<double> lengths;
for (size_t j = 0; j < 3; j++) {
size_t v1 = i + j;
size_t v2 = i + ((j + 1) % 3);
double dx = out[indices[v1]].x - out[indices[v2]].x;
double dy = out[indices[v1]].y - out[indices[v2]].y;
double d = sqrt(dx * dx + dy * dy);
lengths.push_back(d);
}
std::sort(lengths.begin(), lengths.end());
printf("%f %f\n", lengths[2], lengths[0]);
if (lengths[2] > 5 * lengths[0]) {
for (size_t j = 0; j < 3; j++) { for (size_t j = 0; j < 3; j++) {
size_t v1 = i + j; size_t v1 = i + j;
size_t v2 = i + ((j + 1) % 3); size_t v2 = i + ((j + 1) % 3);
@@ -88,10 +105,12 @@ drawvec fix_by_triangulation(drawvec const &dv, int z, int detail) {
std::llabs(std::llround(out[indices[v1]].y / scale) - std::llround(out[indices[v2]].y / scale)) < 2) { std::llabs(std::llround(out[indices[v1]].y / scale) - std::llround(out[indices[v2]].y / scale)) < 2) {
double ang = atan2(out[indices[v2]].y - out[indices[v1]].y, out[indices[v2]].x - out[indices[v1]].x); double ang = atan2(out[indices[v2]].y - out[indices[v1]].y, out[indices[v2]].x - out[indices[v1]].x);
double stretch = 1.5;
drawvec tri; drawvec tri;
tri.emplace_back(VT_MOVETO, (long long) out[indices[v3]].x, (long long) out[indices[v3]].y); tri.emplace_back(VT_MOVETO, (long long) out[indices[v3]].x, (long long) out[indices[v3]].y);
tri.emplace_back(VT_LINETO, out[indices[v1]].x - scale * cos(ang) * sqrt(2) * 2, out[indices[v1]].y - scale * sin(ang) * sqrt(2) * 2); tri.emplace_back(VT_LINETO, out[indices[v1]].x - scale * cos(ang) * stretch, out[indices[v1]].y - scale * sin(ang) * stretch);
tri.emplace_back(VT_LINETO, out[indices[v2]].x + scale * cos(ang) * sqrt(2) * 2, out[indices[v2]].y + scale * sin(ang) * sqrt(2) * 2); tri.emplace_back(VT_LINETO, out[indices[v2]].x + scale * cos(ang) * stretch, out[indices[v2]].y + scale * sin(ang) * stretch);
tri.emplace_back(VT_LINETO, (long long) out[indices[v3]].x, (long long) out[indices[v3]].y); tri.emplace_back(VT_LINETO, (long long) out[indices[v3]].x, (long long) out[indices[v3]].y);
printf("%f\n", get_area(tri, 0, tri.size())); printf("%f\n", get_area(tri, 0, tri.size()));
@@ -102,6 +121,7 @@ drawvec fix_by_triangulation(drawvec const &dv, int z, int detail) {
} }
} }
} }
}
for (size_t i = 0; i < out.size(); i++) { for (size_t i = 0; i < out.size(); i++) {
if (out[i].op == VT_MOVETO) { if (out[i].op == VT_MOVETO) {