ExternalVendorCode/tippecanoe
1
0
Fork 0
mirror of https://github.com/mapbox/tippecanoe.git synced 2025-04-03 01:01:10 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Work in the direction of tracking representative attribute values

Browse Source
This commit is contained in:
Eric Fischer 2017-07-14 17:59:24 -07:00
parent 62ee53992b
commit 7445feb845
2 changed files with 19 additions and 5 deletions

13
geojson.cpp

@ -349,6 +349,7 @@ int serialize_geometry(json_object *geometry, json_object *properties, json_obje
metakey[m] = properties->keys[i]->string;
bool track = false;
if (properties->values[i] != NULL) {
int vt = properties->values[i]->type;
std::string val;
@ -407,20 +408,24 @@ int serialize_geometry(json_object *geometry, json_object *properties, json_obje
exit(EXIT_FAILURE);
}
m++;
track = true;
} else if (vt == JSON_NUMBER) {
tas.type = metatype[m] = mvt_double;
metaval[m] = val;
m++;
track = true;
} else if (vt == JSON_TRUE || vt == JSON_FALSE) {
tas.type = metatype[m] = mvt_bool;
metaval[m] = val;
m++;
track = true;
} else if (vt == JSON_NULL) {
;
} else {
tas.type = metatype[m] = mvt_string;
metaval[m] = val;
m++;
track = true;
}
}
@ -428,6 +433,14 @@ int serialize_geometry(json_object *geometry, json_object *properties, json_obje
auto fk = layermap->find(layername);
fk->second.file_keys.insert(tas);
}
if (track) {
type_and_string attrib;
attrib.type = metatype[m - 1];
attrib.string = metaval[m - 1];
// XXX increment in type_and_string_stats.sample_values
}
}
}

11
mbtiles.hpp

@ -8,17 +8,18 @@ struct type_and_string {
int type;
std::string string;
size_t attribute_count = 0;
std::set<mvt_value> sample_values;
bool operator<(const type_and_string &o) const;
};
struct type_and_string_stats {
std::set<type_and_string> sample_values;
double min = INFINITY;
double max = -INFINITY;
bool operator<(const type_and_string &o) const;
};
struct layermap_entry {
size_t id;
std::set<type_and_string> file_keys;
std::set<type_and_string> file_keys; // XXX map to type_and_string_stats
int minzoom;
int maxzoom;