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Avoid crash if the first bin gets clipped away

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Erica Fischer
2024-11-12 22:10:06 -08:00
parent 794ae2b1eb
commit 1e9be2f740
1 changed files with 19 additions and 14 deletions
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clip.cpp
+19 -14
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@@ -1299,7 +1299,8 @@ static void handle_closepath_from_mvt(drawvec &geom) {
}
}
static void feature_out(std::vector<tile_feature> const &features, mvt_layer &outlayer,
// returns true if a feature was output; false if it was clipped away
static bool feature_out(std::vector<tile_feature> const &features, mvt_layer &outlayer,
std::set<std::string> const &keep,
std::set<std::string> const &exclude,
std::vector<std::string> const &exclude_prefix,
@@ -1427,7 +1428,10 @@ static void feature_out(std::vector<tile_feature> const &features, mvt_layer &ou
}
outlayer.features.push_back(std::move(outfeature));
return true;
}
return false;
}
static struct preservecmp {
@@ -1719,21 +1723,22 @@ mvt_tile assign_to_bins(mvt_tile &features,
for (size_t i = 0; i < outfeatures.size(); i++) {
if (outfeatures[i].size() > 1) {
feature_out(outfeatures[i], outlayer,
keep, exclude, exclude_prefix, attribute_accum,
accumulate_numeric, key_pool, buffer);
mvt_feature &nfeature = outlayer.features.back();
mvt_value val;
val.type = mvt_uint;
val.numeric_value.uint_value = outfeatures[i].size() - 1;
if (feature_out(outfeatures[i], outlayer,
keep, exclude, exclude_prefix, attribute_accum,
accumulate_numeric, key_pool, buffer)) {
mvt_feature &nfeature = outlayer.features.back();
mvt_value val;
val.type = mvt_uint;
val.numeric_value.uint_value = outfeatures[i].size() - 1;
std::string attrname;
if (accumulate_numeric.size() == 0) {
attrname = "tippecanoe:count";
} else {
attrname = accumulate_numeric + ":count";
std::string attrname;
if (accumulate_numeric.size() == 0) {
attrname = "tippecanoe:count";
} else {
attrname = accumulate_numeric + ":count";
}
outlayer.tag(nfeature, attrname, val);
}
outlayer.tag(nfeature, attrname, val);
}
}