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Figuring out a little more

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Erica Fischer
2024-03-26 16:59:02 -07:00
parent 19b79d0d5c
commit 2e0f099b7c
1 changed files with 31 additions and 0 deletions
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clip.cpp
+31
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@@ -870,6 +870,33 @@ static struct preservecmp {
}
} preservecmp;
/* Format looks like:
{
"id": {
"1234": { "name": "Rome", "population", 567890 },
"15": { "name": "New York", "population": 32, "fictional": false }
}
}
IDs are really unsigned ints, not strings, but it feels like the keys
and values should be written as keys instead of in some other way.
Joined values win over original values, at least for the moment.
*/
void join_by_id(mvt_feature &feature, const json_object *j) {
if (j->type != JSON_HASH) {
fprintf(stderr, "list of attributes to be joined to features is not a json object\n");
exit(EXIT_JSON);
}
for (size_t i = 0; i < j->value.object.length; i++) {
const json_object *key = j->value.object.keys[i];
}
}
std::string overzoom(const mvt_tile &tile, int oz, int ox, int oy, int nz, int nx, int ny,
int detail, int buffer, std::set<std::string> const &keep, bool do_compress,
std::vector<std::pair<unsigned, unsigned>> *next_overzoomed_tiles,
@@ -895,6 +922,10 @@ std::string overzoom(const mvt_tile &tile, int oz, int ox, int oy, int nz, int n
static const std::string retain_points_multiplier_sequence = "tippecanoe:retain_points_multiplier_sequence";
for (auto feature : layer.features) {
if (join_attributes_json != NULL) {
join_by_id(feature, join_attributes_json);
}
bool flush_multiplier_cluster = false;
if (demultiply) {
for (ssize_t i = feature.tags.size() - 2; i >= 0; i -= 2) {