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Try simplifying again after cleaning polygons

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This commit is contained in:
Erica Fischer
2023-08-25 13:49:27 -07:00
parent 368af49e2b
commit 09388d43b3
1 changed files with 11 additions and 2 deletions
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tile.cpp
+9
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@@ -626,6 +626,13 @@ void *partial_feature_worker(void *v) {
geom.clear(); geom.clear();
} }
} }
if (!(prevent[P_SIMPLIFY] || (z == (*partials)[i].maxzoom && prevent[P_SIMPLIFY_LOW]))) {
// there may be another opportunity for more simplification after geometry cleaning
geom = simplify_lines(geom, 32, 0, false, (*partials)[i].simplification, 4, drawvec());
// in which case we need to clean again
geom = clean_or_clip_poly(geom, 0, 0, false);
}
} }
} }
@@ -2508,9 +2515,11 @@ long long write_tile(decompressor *geoms, std::atomic<long long> *geompos_in, ch
for (size_t x = 0; x < layer_features.size(); x++) { for (size_t x = 0; x < layer_features.size(); x++) {
if (layer_features[x].coalesced && layer_features[x].type == VT_LINE) { if (layer_features[x].coalesced && layer_features[x].type == VT_LINE) {
layer_features[x].geom = remove_noop(layer_features[x].geom, layer_features[x].type, 0); layer_features[x].geom = remove_noop(layer_features[x].geom, layer_features[x].type, 0);
if (!(prevent[P_SIMPLIFY] || (z == maxzoom && prevent[P_SIMPLIFY_LOW]))) {
layer_features[x].geom = simplify_lines(layer_features[x].geom, 32, 0, layer_features[x].geom = simplify_lines(layer_features[x].geom, 32, 0,
!(prevent[P_CLIPPING] || prevent[P_DUPLICATION]), simplification, layer_features[x].type == VT_POLYGON ? 4 : 0, shared_nodes); !(prevent[P_CLIPPING] || prevent[P_DUPLICATION]), simplification, layer_features[x].type == VT_POLYGON ? 4 : 0, shared_nodes);
} }
}
if (layer_features[x].type == VT_POLYGON) { if (layer_features[x].type == VT_POLYGON) {
if (layer_features[x].coalesced) { if (layer_features[x].coalesced) {