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Restore the intended behavior that tiny polygons don't get simplified

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Erica Fischer
2022-08-25 15:32:12 -07:00
parent 932c524ebc
commit 56259e4a16
3 changed files with 277 additions and 2 deletions
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geometry.cpp
+10 -1
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@@ -544,6 +544,11 @@ drawvec reduce_tiny_poly(drawvec &geom, int z, int detail, bool *reduced, double
// inner rings must just have their area de-accumulated rather
// than being drawn since we don't really know where they are.
// i.e., this ring (inner or outer) is small enough that we are including it
// in a tiny polygon rather than letting it represent itself,
// OR it is an inner ring and we haven't output an outer ring for it to be
// cut out of, so we are just subtracting its area from the tiny polygon
// rather than trying to deal with it geometrically
if (std::fabs(area) <= pixel * pixel || (area < 0 && !included_last_outer)) {
// printf("area is only %f vs %lld so using square\n", area, pixel * pixel);
@@ -563,13 +568,17 @@ drawvec reduce_tiny_poly(drawvec &geom, int z, int detail, bool *reduced, double
if (area > 0) {
included_last_outer = false;
}
} else {
}
// i.e., this ring is large enough that it gets to represent itself
else {
// printf("area is %f so keeping instead of %lld\n", area, pixel * pixel);
for (size_t k = i; k <= j && k < geom.size(); k++) {
out.push_back(geom[k]);
}
// which means that the overall polygon has a real geometry,
// which means that it gets to be simplified.
*reduced = false;
if (area > 0) {