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Store the basezoom/droprate/multiplier decisions in tileset metadata

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This commit is contained in:
Erica Fischer
2023-12-15 16:16:37 -08:00
parent c8047de9ab
commit d95990d478
32 changed files with 52 additions and 4 deletions
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mbtiles.cpp
+20 -1
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@@ -601,6 +601,17 @@ void mbtiles_write_metadata(sqlite3 *db, const metadata &m, bool forcetable) {
sqlite3_free(sql);
}
if (m.decisions_json.size() > 0) {
sql = sqlite3_mprintf("INSERT INTO metadata (name, value) VALUES ('tippecanoe_decisions', %Q);", m.decisions_json.c_str());
if (sqlite3_exec(db, sql, NULL, NULL, &err) != SQLITE_OK) {
fprintf(stderr, "set decisions: %s\n", err);
if (!forcetable) {
exit(EXIT_SQLITE);
}
}
sqlite3_free(sql);
}
if (m.vector_layers_json.size() > 0 || m.tilestats_json.size() > 0) {
std::string json;
json_writer state(&json);
@@ -642,7 +653,7 @@ void mbtiles_write_metadata(sqlite3 *db, const metadata &m, bool forcetable) {
}
}
metadata make_metadata(const char *fname, int minzoom, int maxzoom, double minlat, double minlon, double maxlat, double maxlon, double minlat2, double minlon2, double maxlat2, double maxlon2, double midlat, double midlon, const char *attribution, std::map<std::string, layermap_entry> const &layermap, bool vector, const char *description, bool do_tilestats, std::map<std::string, std::string> const &attribute_descriptions, std::string const &program, std::string const &commandline, std::vector<strategy> const &strategies) {
metadata make_metadata(const char *fname, int minzoom, int maxzoom, double minlat, double minlon, double maxlat, double maxlon, double minlat2, double minlon2, double maxlat2, double maxlon2, double midlat, double midlon, const char *attribution, std::map<std::string, layermap_entry> const &layermap, bool vector, const char *description, bool do_tilestats, std::map<std::string, std::string> const &attribute_descriptions, std::string const &program, std::string const &commandline, std::vector<strategy> const &strategies, int basezoom, double droprate, double retain_points_multiplier) {
metadata m;
m.name = fname;
@@ -677,6 +688,14 @@ metadata make_metadata(const char *fname, int minzoom, int maxzoom, double minla
m.strategies_json = stringify_strategies(strategies);
if (basezoom != maxzoom || droprate != 2.5 || retain_points_multiplier != 1) {
m.decisions_json = std::string("{") +
"\"basezoom\":" + std::to_string(basezoom) + "," +
"\"droprate\":" + std::to_string(droprate) + "," +
"\"retain_points_multiplier\":" + std::to_string(retain_points_multiplier) +
std::string("}");
}
if (vector) {
{
json_writer state(&m.vector_layers_json);