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Fix scaling before post-binning clipping. Add test.

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This commit is contained in:
Erica Fischer
2024-11-26 14:15:58 -08:00
parent f41970b72a
commit 02efa9f1e1
5 changed files with 27 additions and 6 deletions
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clip.cpp
+7 -1
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@@ -1228,7 +1228,7 @@ clipbbox parse_clip_poly(std::string arg) {
exit(EXIT_ARGS);
}
std::pair<int, drawvec> parsed_geometry = parse_geometry(j, jp, j, 0, 0, 0, 1LL << 32, false);
std::pair<int, drawvec> parsed_geometry = parse_geometry(j, jp, j, 0, 0, 0, 1LL << 32, false, false);
json_end(jp);
clipbbox out;
@@ -1539,11 +1539,17 @@ static bool feature_out(std::vector<tile_feature> const &features, mvt_layer &ou
for (auto const &c_world : clipbboxes) {
clipbbox c = c_world;
c.minx = std::llround((c_world.minx - dx) * scale);
c.miny = std::llround((c_world.miny - dy) * scale);
c.maxx = std::llround((c_world.maxx - dx) * scale);
c.maxy = std::llround((c_world.maxy - dy) * scale);
for (auto &p : c.dv) {
p.x = std::llround((p.x - dx) * scale);
p.y = std::llround((p.y - dy) * scale);
}
if (t == VT_POLYGON) {
geom = simple_clip_poly(geom, c.minx, c.miny, c.maxx, c.maxy, false);
if (c.dv.size() > 0 && geom.size() > 0) {