mirror of
https://github.com/mapbox/tippecanoe.git
synced 2025-05-09 04:12:54 +00:00
Preserve per-node attributes through feature filter pipelines
They now stay in array form until just before printing, rather than being decoded into strings as part of tile deserialization
This commit is contained in:
Eric Fischer
parent
56bf3f4218
commit
4ce81bd587
31
mvt.cpp
31
mvt.cpp
@ -432,40 +432,11 @@ bool mvt_tile::decode(std::string &message, bool &was_compressed) {
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for (size_t i = 0; i < layer.features.size(); i++) {
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std::vector<mvt_geometry> &geom = layer.features[i].geometry;
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std::vector<unsigned long> &attr = layer.features[i].node_attributes;
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for (size_t t = 0; t + 1 < attr.size(); t++) {
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if (attr[t] >= layer.keys.size()) {
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fprintf(stderr, "Out of bounds attribute reference %lu into %zu\n", attr[t], layer.keys.size());
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exit(EXIT_FAILURE);
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}
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std::string key = layer.keys[attr[t]];
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t++;
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mvt_value const &val = layer.decode_property(attr, t);
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if (val.type != mvt_list) {
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fprintf(stderr, "Expected node attribute to be a list\n");
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exit(EXIT_FAILURE);
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}
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if (val.list_value.size() != geom.size()) {
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fprintf(stderr, "Node attribute list size doesn't match geometry size\n");
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exit(EXIT_FAILURE);
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}
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for (size_t g = 0; g < geom.size(); g++) {
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geom[g].attribute = std::string("{\"") + quote(key) + "\":" + val.list_value[g].toString() + "}";
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}
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}
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attr.clear();
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std::vector<int> &elevations = layer.features[i].elevations;
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long current_elevation = elevation_scaling.offset;
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size_t off = 0;
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std::vector<int> &elevations = layer.features[i].elevations;
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if (elevations.size() != 0) {
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for (size_t j = 0; j < geom.size(); j++) {
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if (geom[j].op == mvt_moveto || geom[j].op == mvt_lineto) {
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1
mvt.hpp
1
mvt.hpp
@ -31,7 +31,6 @@ struct mvt_geometry {
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long long y = 0;
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int /* mvt_operation */ op = 0;
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std::vector<double> elevations;
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std::string attribute;
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mvt_geometry(int op, long long x, long long y);
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mvt_geometry(int op, long long x, long long y, std::vector<double> elevation);
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@ -182,7 +182,7 @@ std::vector<mvt_layer> parse_layers(int fd, int z, unsigned x, unsigned y, std::
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parse_geometry(t, coordinates, dv, VT_MOVETO, "Filter output", jp->line, j, false);
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if (attributes != NULL) {
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drawvec dv2;
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parse_geometry(t, attributes, dv, VT_MOVETO, "Filter output", jp->line, j, true);
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parse_geometry(t, attributes, dv2, VT_MOVETO, "Filter output", jp->line, j, true);
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merge_node_attributes(dv, dv2);
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}
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if (mb_geometry[t] == VT_POLYGON) {
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@ -385,7 +385,7 @@ serial_feature parse_feature(json_pull *jp, int z, unsigned x, unsigned y, std::
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parse_geometry(t, coordinates, dv, VT_MOVETO, "Filter output", jp->line, j, false);
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if (attributes != NULL) {
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drawvec dv2;
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parse_geometry(t, attributes, dv, VT_MOVETO, "Filter output", jp->line, j, true);
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parse_geometry(t, attributes, dv2, VT_MOVETO, "Filter output", jp->line, j, true);
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merge_node_attributes(dv, dv2);
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}
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if (mb_geometry[t] == VT_POLYGON) {
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@ -132,13 +132,13 @@ void parse_geometry(int t, json_object *j, drawvec &out, int op, const char *fna
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void merge_node_attributes(drawvec &geom, drawvec &attributes) {
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if (attributes.size() != geom.size()) {
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fprintf(stderr, "Geometry attributes don't match coordinates\n");
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fprintf(stderr, "Geometry attributes don't match coordinates: %zu attributes for %zu geometries\n", attributes.size(), geom.size());
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exit(EXIT_FAILURE);
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}
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for (size_t i = 0; i < attributes.size(); i++) {
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if (geom[i].op != attributes[i].op) {
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fprintf(stderr, "Geometry attributes don't match coordinates\n");
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fprintf(stderr, "Geometry attributes don't match coordinates: op %d vs %d\n", geom[i].op, attributes[i].op);
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exit(EXIT_FAILURE);
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}
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@ -12,25 +12,25 @@
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}, "features": [
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{ "type": "FeatureCollection", "properties": { "zoom": 0, "x": 0, "y": 0 }, "features": [
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{ "type": "FeatureCollection", "properties": { "layer": "in", "version": 2, "extent": 4096 }, "features": [
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -122.255859, 37.718590, 0 ], [ -122.431641, 37.788081, 0 ], [ -122.431641, 37.439974, 8192 ], [ -122.255859, 37.370157, 8192 ], [ -120.146484, 36.949892, 8192 ], [ -116.982422, 36.879621, 8192 ], [ -116.279297, 36.385913, 8192 ], [ -116.103516, 36.385913, 8192 ], [ -115.839844, 36.102376, 8192 ], [ -115.224609, 36.102376, 0 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -122.255859, 37.718590, 0 ], [ -122.431641, 37.788081, 0 ], [ -122.431641, 37.439974, 8192 ], [ -122.255859, 37.370157, 8192 ], [ -120.146484, 36.949892, 8192 ], [ -116.982422, 36.879621, 8192 ], [ -116.279297, 36.385913, 8192 ], [ -116.103516, 36.385913, 8192 ], [ -115.839844, 36.102376, 8192 ], [ -115.224609, 36.102376, 0 ] ], "attributes": [ {"time":"2015-06-23T22:02:16Z"}, {"time":"2015-06-23T22:30:35Z"}, {"time":"2015-06-23T22:34:00Z"}, {"time":"2015-06-23T22:35:21Z"}, {"time":"2015-06-23T22:49:15Z"}, {"time":"2015-06-23T23:09:16Z"}, {"time":"2015-06-23T23:15:42Z"}, {"time":"2015-06-23T23:16:40Z"}, {"time":"2015-06-23T23:20:11Z"}, {"time":"2015-06-23T23:27:27Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -115.224609, 36.102376, 0 ], [ -115.312500, 36.244273, 0 ], [ -113.291016, 36.315125, 8192 ], [ -110.917969, 37.230328, 8192 ], [ -108.193359, 37.718590, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -115.224609, 36.102376, 0 ], [ -115.312500, 36.244273, 0 ], [ -113.291016, 36.315125, 8192 ], [ -110.917969, 37.230328, 8192 ], [ -108.193359, 37.718590, 16384 ] ], "attributes": [ {"time":"2015-06-24T01:14:16Z"}, {"time":"2015-06-24T01:53:02Z"}, {"time":"2015-06-24T02:06:33Z"}, {"time":"2015-06-24T02:22:26Z"}, {"time":"2015-06-24T02:38:46Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.841797, 37.788081, 16384 ], [ -107.138672, 37.926868, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.841797, 37.788081, 16384 ], [ -107.138672, 37.926868, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:41:22Z"}, {"time":"2015-06-24T02:45:17Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.050781, 37.926868, 16384 ], [ -105.996094, 38.065392, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.050781, 37.926868, 16384 ], [ -105.996094, 38.065392, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:45:58Z"}, {"time":"2015-06-24T02:52:16Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.732422, 38.134557, 16384 ], [ -105.644531, 38.134557, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.732422, 38.134557, 16384 ], [ -105.644531, 38.134557, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:54:01Z"}, {"time":"2015-06-24T02:54:26Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.380859, 38.203655, 0 ], [ -103.974609, 38.134557, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.380859, 38.203655, 0 ], [ -103.974609, 38.134557, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:56:22Z"}, {"time":"2015-06-24T03:04:33Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -103.886719, 38.134557, 16384 ], [ -102.568359, 38.134557, 16384 ], [ -101.601562, 38.341656, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -103.886719, 38.134557, 16384 ], [ -102.568359, 38.134557, 16384 ], [ -101.601562, 38.341656, 16384 ] ], "attributes": [ {"time":"2015-06-24T03:05:09Z"}, {"time":"2015-06-24T03:13:01Z"}, {"time":"2015-06-24T03:18:59Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -101.425781, 38.341656, 16384 ], [ -100.634766, 38.548165, 16384 ], [ -97.207031, 39.027719, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -101.425781, 38.341656, 16384 ], [ -100.634766, 38.548165, 16384 ], [ -97.207031, 39.027719, 16384 ] ], "attributes": [ {"time":"2015-06-24T03:20:11Z"}, {"time":"2015-06-24T03:25:26Z"}, {"time":"2015-06-24T03:45:35Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -96.328125, 39.164141, 16384 ], [ -90.439453, 39.842286, 16384 ], [ -86.923828, 39.909736, 8192 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -96.328125, 39.164141, 16384 ], [ -90.439453, 39.842286, 16384 ], [ -86.923828, 39.909736, 8192 ] ], "attributes": [ {"time":"2015-06-24T03:51:05Z"}, {"time":"2015-06-24T04:25:18Z"}, {"time":"2015-06-24T04:45:15Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -86.923828, 39.909736, 0 ], [ -86.572266, 39.639538, 0 ], [ -86.308594, 39.774769, 0 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -86.923828, 39.909736, 0 ], [ -86.572266, 39.639538, 0 ], [ -86.308594, 39.774769, 0 ] ], "attributes": [ {"time":"2015-06-24T04:45:30Z"}, {"time":"2015-06-24T04:49:24Z"}, {"time":"2015-06-24T04:55:29Z"} ] } }
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] }
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] }
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] }
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@ -12,25 +12,25 @@
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}, "features": [
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{ "type": "FeatureCollection", "properties": { "zoom": 0, "x": 0, "y": 0 }, "features": [
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{ "type": "FeatureCollection", "properties": { "layer": "in", "version": 2, "extent": 4096 }, "features": [
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -122.255859, 37.718590, 0 ], [ -122.431641, 37.788081, 0 ], [ -122.431641, 37.439974, 8192 ], [ -122.255859, 37.370157, 8192 ], [ -120.146484, 36.949892, 8192 ], [ -116.982422, 36.879621, 8192 ], [ -116.279297, 36.385913, 8192 ], [ -116.103516, 36.385913, 8192 ], [ -115.839844, 36.102376, 8192 ], [ -115.224609, 36.102376, 0 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -122.255859, 37.718590, 0 ], [ -122.431641, 37.788081, 0 ], [ -122.431641, 37.439974, 8192 ], [ -122.255859, 37.370157, 8192 ], [ -120.146484, 36.949892, 8192 ], [ -116.982422, 36.879621, 8192 ], [ -116.279297, 36.385913, 8192 ], [ -116.103516, 36.385913, 8192 ], [ -115.839844, 36.102376, 8192 ], [ -115.224609, 36.102376, 0 ] ], "attributes": [ {"time":"2015-06-23T22:02:16Z"}, {"time":"2015-06-23T22:30:35Z"}, {"time":"2015-06-23T22:34:00Z"}, {"time":"2015-06-23T22:35:21Z"}, {"time":"2015-06-23T22:49:15Z"}, {"time":"2015-06-23T23:09:16Z"}, {"time":"2015-06-23T23:15:42Z"}, {"time":"2015-06-23T23:16:40Z"}, {"time":"2015-06-23T23:20:11Z"}, {"time":"2015-06-23T23:27:27Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -115.224609, 36.102376, 0 ], [ -115.312500, 36.244273, 0 ], [ -113.291016, 36.315125, 8192 ], [ -110.917969, 37.230328, 8192 ], [ -108.193359, 37.718590, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -115.224609, 36.102376, 0 ], [ -115.312500, 36.244273, 0 ], [ -113.291016, 36.315125, 8192 ], [ -110.917969, 37.230328, 8192 ], [ -108.193359, 37.718590, 16384 ] ], "attributes": [ {"time":"2015-06-24T01:14:16Z"}, {"time":"2015-06-24T01:53:02Z"}, {"time":"2015-06-24T02:06:33Z"}, {"time":"2015-06-24T02:22:26Z"}, {"time":"2015-06-24T02:38:46Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.841797, 37.788081, 16384 ], [ -107.138672, 37.926868, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.841797, 37.788081, 16384 ], [ -107.138672, 37.926868, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:41:22Z"}, {"time":"2015-06-24T02:45:17Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.050781, 37.926868, 16384 ], [ -105.996094, 38.065392, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -107.050781, 37.926868, 16384 ], [ -105.996094, 38.065392, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:45:58Z"}, {"time":"2015-06-24T02:52:16Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.732422, 38.134557, 16384 ], [ -105.644531, 38.134557, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.732422, 38.134557, 16384 ], [ -105.644531, 38.134557, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:54:01Z"}, {"time":"2015-06-24T02:54:26Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.380859, 38.203655, 0 ], [ -103.974609, 38.134557, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -105.380859, 38.203655, 0 ], [ -103.974609, 38.134557, 16384 ] ], "attributes": [ {"time":"2015-06-24T02:56:22Z"}, {"time":"2015-06-24T03:04:33Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -103.886719, 38.134557, 16384 ], [ -102.568359, 38.134557, 16384 ], [ -101.601562, 38.341656, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -103.886719, 38.134557, 16384 ], [ -102.568359, 38.134557, 16384 ], [ -101.601562, 38.341656, 16384 ] ], "attributes": [ {"time":"2015-06-24T03:05:09Z"}, {"time":"2015-06-24T03:13:01Z"}, {"time":"2015-06-24T03:18:59Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -101.425781, 38.341656, 16384 ], [ -100.634766, 38.548165, 16384 ], [ -97.207031, 39.027719, 16384 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -101.425781, 38.341656, 16384 ], [ -100.634766, 38.548165, 16384 ], [ -97.207031, 39.027719, 16384 ] ], "attributes": [ {"time":"2015-06-24T03:20:11Z"}, {"time":"2015-06-24T03:25:26Z"}, {"time":"2015-06-24T03:45:35Z"} ] } }
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,
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -96.328125, 39.164141, 16384 ], [ -90.439453, 39.842286, 16384 ], [ -86.923828, 39.909736, 8192 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -96.328125, 39.164141, 16384 ], [ -90.439453, 39.842286, 16384 ], [ -86.923828, 39.909736, 8192 ] ], "attributes": [ {"time":"2015-06-24T03:51:05Z"}, {"time":"2015-06-24T04:25:18Z"}, {"time":"2015-06-24T04:45:15Z"} ] } }
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,
|
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -86.923828, 39.909736, 0 ], [ -86.572266, 39.639538, 0 ], [ -86.308594, 39.774769, 0 ] ] } }
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{ "type": "Feature", "properties": { }, "geometry": { "type": "LineString", "coordinates": [ [ -86.923828, 39.909736, 0 ], [ -86.572266, 39.639538, 0 ], [ -86.308594, 39.774769, 0 ] ], "attributes": [ {"time":"2015-06-24T04:45:30Z"}, {"time":"2015-06-24T04:49:24Z"}, {"time":"2015-06-24T04:55:29Z"} ] } }
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] }
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] }
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] }
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@ -291,8 +291,10 @@ void print_val(mvt_feature const &feature, mvt_layer const &layer, mvt_value con
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state.json_write_stringified(s);
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}
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static void quote(std::string &buf, std::string const &s) {
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static std::string quote(std::string const &s) {
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std::string buf;
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buf.push_back('"');
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for (size_t i = 0; i < s.size(); i++) {
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unsigned char ch = s[i];
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@ -307,12 +309,14 @@ static void quote(std::string &buf, std::string const &s) {
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buf.push_back(ch);
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}
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}
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buf.push_back('"');
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return buf;
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}
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void stringify_val(std::string &out, mvt_feature const &feature, mvt_layer const &layer, mvt_value const &val, size_t vo) {
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if (val.type == mvt_string) {
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quote(out, val.string_value);
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out.append(quote(val.string_value));
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} else if (val.type == mvt_int) {
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out.append(std::to_string(val.numeric_value.int_value));
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} else if (val.type == mvt_double) {
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@ -363,6 +367,40 @@ struct coordinate_writer {
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void (*function)(json_writer &state, lonlat const &p);
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};
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|
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std::vector<std::string> decode_node_attributes(mvt_feature const &feature, const mvt_layer &layer) {
|
||||
std::vector<mvt_geometry> const &geom = feature.geometry;
|
||||
std::vector<unsigned long> const &attr = feature.node_attributes;
|
||||
std::vector<std::string> out;
|
||||
|
||||
for (size_t t = 0; t + 1 < attr.size(); t++) {
|
||||
if (attr[t] >= layer.keys.size()) {
|
||||
fprintf(stderr, "Out of bounds attribute reference %lu into %zu\n", attr[t], layer.keys.size());
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
std::string key = layer.keys[attr[t]];
|
||||
|
||||
t++;
|
||||
mvt_value const &val = layer.decode_property(attr, t);
|
||||
|
||||
if (val.type != mvt_list) {
|
||||
fprintf(stderr, "Expected node attribute to be a list\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (val.list_value.size() != geom.size()) {
|
||||
fprintf(stderr, "Node attribute list size doesn't match geometry size\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
for (size_t g = 0; g < geom.size(); g++) {
|
||||
out.push_back(std::string("{") + quote(key) + ":" + val.list_value[g].toString() + "}");
|
||||
}
|
||||
}
|
||||
|
||||
return out;
|
||||
}
|
||||
|
||||
void layer_to_geojson(mvt_layer const &layer, unsigned z, unsigned x, unsigned y, bool comma, bool name, bool zoom, bool dropped, unsigned long long index, long long sequence, long long extent, bool complain, json_writer &state) {
|
||||
for (size_t f = 0; f < layer.features.size(); f++) {
|
||||
mvt_feature const &feat = layer.features[f];
|
||||
@ -462,6 +500,8 @@ void layer_to_geojson(mvt_layer const &layer, unsigned z, unsigned x, unsigned y
|
||||
std::vector<lonlat> ops;
|
||||
bool has_attributes = false;
|
||||
|
||||
std::vector<std::string> attributes = decode_node_attributes(feat, layer);
|
||||
|
||||
for (size_t g = 0; g < feat.geometry.size(); g++) {
|
||||
int op = feat.geometry[g].op;
|
||||
long long px = feat.geometry[g].x;
|
||||
@ -475,8 +515,8 @@ void layer_to_geojson(mvt_layer const &layer, unsigned z, unsigned x, unsigned y
|
||||
double lat, lon;
|
||||
projection->unproject(wx, wy, 32, &lon, &lat);
|
||||
|
||||
ops.push_back(lonlat(op, lon, lat, px, py, feat.geometry[g].elevations, feat.geometry[g].attribute));
|
||||
if (feat.geometry[g].attribute.size() != 0) {
|
||||
ops.push_back(lonlat(op, lon, lat, px, py, feat.geometry[g].elevations, attributes[g]));
|
||||
if (attributes[g].size() != 0) {
|
||||
has_attributes = true;
|
||||
}
|
||||
} else {
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user