diegoripley/tippecanoe
1
0
Fork 0
mirror of https://github.com/felt/tippecanoe.git synced 2026-10-03 08:55:41 +02:00
Code Issues Packages Projects Releases Wiki Activity

Add means, but somehow I have some counts of 0

Browse Source
This commit is contained in:
Erica Fischer
2024-09-13 12:39:53 -07:00
parent 7a0878da9b
commit a2adb60638
4 changed files with 193 additions and 3731 deletions
Download Patch File Download Diff File Expand all files Collapse all files
clip.cpp
+30
View File
@@ -1122,6 +1122,32 @@ struct tile_feature {
size_t seq = 0;
};
static void add_mean(mvt_feature &feature, mvt_layer &layer) {
std::unordered_map<std::string, size_t> attributes;
for (size_t i = 0; i + 1 < feature.tags.size(); i += 2) {
std::string const &key = layer.keys[feature.tags[i]];
if (starts_with(key, "tippecanoe:")) {
attributes.emplace(key, i);
}
}
for (size_t i = 0; i + 1 < feature.tags.size(); i += 2) {
std::string const &key = layer.keys[feature.tags[i]];
if (starts_with(key, "tippecanoe:sum:")) {
std::string trunc = key.substr(15);
auto const f = attributes.find("tippecanoe:count:" + trunc);
if (f != attributes.end()) {
mvt_value const &sum = layer.values[feature.tags[i + 1]];
mvt_value const &count = layer.values[feature.tags[f->second + 1]];
mvt_value mean;
mean.type = mvt_double;
mean.numeric_value.double_value = mvt_value_to_double(sum) / mvt_value_to_double(count);
layer.tag(feature, "tippecanoe:mean:" + trunc, mean);
}
}
}
};
static void feature_out(std::vector<tile_feature> const &features, mvt_layer &outlayer,
std::set<std::string> const &keep,
std::unordered_map<std::string, attribute_op> const &attribute_accum,
@@ -1264,6 +1290,10 @@ static void feature_out(std::vector<tile_feature> const &features, mvt_layer &ou
outlayer.tag(outfeature, full_keys[i], stringified_to_mvt_value(full_values[i].type, full_values[i].s.c_str(), tile_stringpool));
}
}
if (accumulate_numeric) {
add_mean(outfeature, outlayer);
}
} else {
for (size_t i = 0; i + 1 < features[0].tags.size(); i += 2) {
if (keep.size() == 0 || keep.find(features[0].layer->keys[features[0].tags[i]]) != keep.end()) {