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Pass the index, sequence, and extent through the prefilter when needed

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This commit is contained in:
Eric Fischer
2017-01-13 14:59:11 -08:00
parent aa75f4a4c4
commit 150e3663e1
6 changed files with 93 additions and 24 deletions
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write_json.cpp
+39 -4
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@@ -24,7 +24,7 @@ struct lonlat {
}
};
void layer_to_geojson(FILE *fp, mvt_layer const &layer, unsigned z, unsigned x, unsigned y, bool comma, bool name) {
void layer_to_geojson(FILE *fp, mvt_layer const &layer, unsigned z, unsigned x, unsigned y, bool comma, bool name, unsigned long long index, long long sequence, long long extent) {
for (size_t f = 0; f < layer.features.size(); f++) {
mvt_feature const &feat = layer.features[f];
@@ -38,9 +38,44 @@ void layer_to_geojson(FILE *fp, mvt_layer const &layer, unsigned z, unsigned x,
fprintf(fp, ", \"id\": %llu", feat.id);
}
if (name) {
fprintf(fp, ", \"tippecanoe\": { \"layer\": ");
fprintq(fp, layer.name.c_str());
if (name || index != 0 || sequence != 0 || extent != 0) {
bool need_comma = false;
fprintf(fp, ", \"tippecanoe\": { ");
if (name) {
if (need_comma) {
fprintf(fp, ", ");
}
fprintf(fp, "\"layer\": ");
fprintq(fp, layer.name.c_str());
need_comma = true;
}
if (index != 0) {
if (need_comma) {
fprintf(fp, ", ");
}
fprintf(fp, "\"index\": %llu", index);
need_comma = true;
}
if (sequence != 0) {
if (need_comma) {
fprintf(fp, ", ");
}
fprintf(fp, "\"sequence\": %lld", sequence);
need_comma = true;
}
if (extent != 0) {
if (need_comma) {
fprintf(fp, ", ");
}
fprintf(fp, "\"extent\": %lld", extent);
need_comma = true;
}
fprintf(fp, " }");
}