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Also pay attention to area vs. prominence with polygon dust

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Erica Fischer
2022-10-19 14:48:30 -07:00
parent 2024af2047
commit 3a65db7a22
1 changed files with 18 additions and 5 deletions
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geometry.cpp
+18 -5
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@@ -687,16 +687,29 @@ drawvec reduce_tiny_poly(drawvec &geom, int z, int detail, bool *reduced, double
// keep its attributes instead of this one that just happened to be
// the one that hit the threshold of survival.
if (tiny_feature->area > this_feature->area) {
*this_feature = *tiny_feature;
tiny_feature->area = 0;
if (order_by_prominence) {
if (tiny_feature->prominence > this_feature->prominence) {
*this_feature = *tiny_feature;
tiny_feature->prominence = 0;
}
} else if (order_by_size) {
if (tiny_feature->area > this_feature->area) {
*this_feature = *tiny_feature;
tiny_feature->area = 0;
}
}
} else {
// this is a feature that we are throwing away, so hang on to it
// attributes if it is bigger than the biggest one we threw away so far
if (this_feature->area > tiny_feature->area) {
*tiny_feature = *this_feature;
if (order_by_prominence) {
if (this_feature->prominence > tiny_feature->prominence) {
*tiny_feature = *this_feature;
}
} else if (order_by_size) {
if (this_feature->area > tiny_feature->area) {
*tiny_feature = *this_feature;
}
}
}
}