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Fill out layermaps when reading the output of the prefilter

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This commit is contained in:
Eric Fischer
2016-12-12 16:08:08 -08:00
parent 5e7f718afc
commit 9c0e2cdfa7
3 changed files with 36 additions and 3 deletions
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plugin.cpp
+34 -1
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@@ -239,7 +239,7 @@ mvt_layer parse_layer(int fd, unsigned z, unsigned x, unsigned y, mvt_layer cons
return ret;
}
serial_feature parse_feature(json_pull *jp, unsigned z, unsigned x, unsigned y) {
serial_feature parse_feature(json_pull *jp, unsigned z, unsigned x, unsigned y, std::vector<std::map<std::string, layermap_entry>> *layermaps, size_t tiling_seg) {
serial_feature sf;
while (1) {
@@ -332,6 +332,16 @@ serial_feature parse_feature(json_pull *jp, unsigned z, unsigned x, unsigned y)
}
if (dv.size() > 0) {
std::string layername = "unknown";
json_object *tippecanoe = json_hash_get(j, "tippecanoe");
json_object *layer = NULL;
if (tippecanoe != NULL) {
layer = json_hash_get(tippecanoe, "layer");
if (layer != NULL && layer->type == JSON_STRING) {
layername = std::string(layer->string);
}
}
sf.t = mb_geometry[t];
sf.geometry = dv;
sf.segment = 0;
@@ -350,6 +360,8 @@ serial_feature parse_feature(json_pull *jp, unsigned z, unsigned x, unsigned y)
sf.has_id = true;
}
std::map<std::string, layermap_entry> &layermap = (*layermaps)[tiling_seg];
for (size_t i = 0; i < properties->length; i++) {
serial_val v;
v.type = -1;
@@ -358,6 +370,27 @@ serial_feature parse_feature(json_pull *jp, unsigned z, unsigned x, unsigned y)
if (v.type >= 0) {
sf.kv.insert(std::pair<std::string, serial_val>(std::string(properties->keys[i]->string), v));
if (layermap.count(layername) == 0) {
layermap_entry lme = layermap_entry(layermap.size());
lme.minzoom = z;
lme.maxzoom = z;
layermap.insert(std::pair<std::string, layermap_entry>(layername, lme));
}
type_and_string tas;
tas.string = std::string(properties->keys[i]->string);
tas.type = v.type;
auto fk = layermap.find(layername);
if (z < fk->second.minzoom) {
fk->second.minzoom = z;
}
if (z > fk->second.maxzoom) {
fk->second.maxzoom = z;
}
fk->second.file_keys.insert(tas);
}
}