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Generate the rest of the tilestats

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This commit is contained in:
Eric Fischer 2017-07-18 14:20:33 -07:00
parent ba82ef8274
commit 9304bc5ca1
1 changed files with 61 additions and 0 deletions
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61
mbtiles.cpp
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@ -181,6 +181,9 @@ std::string tilestats(std::map<std::string, layermap_entry> const &layermap) {
size_t attrs = 0;
for (auto attribute : layer.second.file_keys) {
if (attrs == 100) {
break;
}
if (attrs != 0) {
out.append(",\n");
}
@ -201,6 +204,64 @@ std::string tilestats(std::map<std::string, layermap_entry> const &layermap) {
out.append(std::to_string(val_count));
out.append(",\n");
int type = 0;
for (auto s : attribute.second.sample_values) {
type |= (1 << s.type);
}
std::string type_str;
// No "null" because null attributes are dropped
if (type == (1 << mvt_double)) {
type_str = "number";
} else if (type == (1 << mvt_bool)) {
type_str = "boolean";
} else if (type == (1 << mvt_string)) {
type_str = "string";
} else {
type_str = "mixed";
}
out.append("\t\t\t\t\t\"type\": \"");
quote(&out, type_str.c_str());
out.append("\",\n");
out.append("\t\t\t\t\t\"values\": [\n");
size_t vals = 0;
for (auto value : attribute.second.sample_values) {
if (vals == 100) {
break;
}
if (vals != 0) {
out.append(",\n");
}
vals++;
if (value.type == mvt_double || value.type == mvt_bool) {
out.append("\t\t\t\t\t\t");
out.append(value.string);
} else {
out.append("\t\t\t\t\t\t\"");
quote(&out, value.string.c_str());
out.append("\"");
}
}
out.append("\n");
out.append("\t\t\t\t\t]");
if ((type & (1 << mvt_double)) != 0) {
out.append(",\n");
out.append("\t\t\t\t\t\"min\": ");
out.append(std::to_string(attribute.second.min));
out.append(",\n");
out.append("\t\t\t\t\t\"max\": ");
out.append(std::to_string(attribute.second.max));
}
out.append("\n");
out.append("\t\t\t\t}");
}