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https://github.com/mapbox/tippecanoe.git
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Merge pull request #78 from mapbox/geometrycollection
Support GeometryCollection input
This commit is contained in:
Eric Fischer
commit
d9974d3cc7
315
geojson.c
315
geojson.c
@ -409,6 +409,159 @@ long long addpool(struct memfile *poolfile, struct memfile *treefile, char *s, c
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return off;
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}
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int serialize_geometry(json_object *geometry, json_object *properties, const char *reading, json_pull *jp, long long *seq, long long *metapos, long long *geompos, long long *indexpos, struct pool *exclude, struct pool *include, int exclude_all, FILE *metafile, FILE *geomfile, FILE *indexfile, struct memfile *poolfile, struct memfile *treefile, const char *fname, int maxzoom, int n, double droprate, unsigned *file_bbox) {
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json_object *geometry_type = json_hash_get(geometry, "type");
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if (geometry_type == NULL) {
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static int warned = 0;
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if (!warned) {
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fprintf(stderr, "%s:%d: null geometry (additional not reported)\n", reading, jp->line);
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warned = 1;
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}
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return 0;
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}
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if (geometry_type->type != JSON_STRING) {
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fprintf(stderr, "%s:%d: geometry without type\n", reading, jp->line);
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return 0;
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}
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json_object *coordinates = json_hash_get(geometry, "coordinates");
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if (coordinates == NULL || coordinates->type != JSON_ARRAY) {
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fprintf(stderr, "%s:%d: feature without coordinates array\n", reading, jp->line);
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return 0;
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}
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int t;
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for (t = 0; t < GEOM_TYPES; t++) {
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if (strcmp(geometry_type->string, geometry_names[t]) == 0) {
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break;
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}
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}
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if (t >= GEOM_TYPES) {
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fprintf(stderr, "%s:%d: Can't handle geometry type %s\n", reading, jp->line, geometry_type->string);
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return 0;
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}
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unsigned bbox[] = {UINT_MAX, UINT_MAX, 0, 0};
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int nprop = 0;
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if (properties->type == JSON_HASH) {
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nprop = properties->length;
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}
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long long metastart = *metapos;
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char *metakey[nprop];
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char *metaval[nprop];
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int metatype[nprop];
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int m = 0;
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int i;
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for (i = 0; i < nprop; i++) {
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if (properties->keys[i]->type == JSON_STRING) {
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if (exclude_all) {
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if (!is_pooled(include, properties->keys[i]->string, VT_STRING)) {
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continue;
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}
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} else if (is_pooled(exclude, properties->keys[i]->string, VT_STRING)) {
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continue;
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}
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metakey[m] = properties->keys[i]->string;
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if (properties->values[i] != NULL && properties->values[i]->type == JSON_STRING) {
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metatype[m] = VT_STRING;
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metaval[m] = properties->values[i]->string;
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m++;
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} else if (properties->values[i] != NULL && properties->values[i]->type == JSON_NUMBER) {
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metatype[m] = VT_NUMBER;
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metaval[m] = properties->values[i]->string;
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m++;
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} else if (properties->values[i] != NULL && (properties->values[i]->type == JSON_TRUE || properties->values[i]->type == JSON_FALSE)) {
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metatype[m] = VT_BOOLEAN;
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metaval[m] = properties->values[i]->type == JSON_TRUE ? "true" : "false";
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m++;
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} else if (properties->values[i] != NULL && (properties->values[i]->type == JSON_NULL)) {
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;
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} else {
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fprintf(stderr, "%s:%d: Unsupported property type for %s\n", reading, jp->line, properties->keys[i]->string);
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continue;
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}
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}
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}
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serialize_int(metafile, m, metapos, fname);
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for (i = 0; i < m; i++) {
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serialize_long_long(metafile, addpool(poolfile, treefile, metakey[i], VT_STRING), metapos, fname);
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serialize_long_long(metafile, addpool(poolfile, treefile, metaval[i], metatype[i]), metapos, fname);
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}
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long long geomstart = *geompos;
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serialize_byte(geomfile, mb_geometry[t], geompos, fname);
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serialize_long_long(geomfile, n, geompos, fname);
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serialize_long_long(geomfile, metastart, geompos, fname);
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long long wx = initial_x, wy = initial_y;
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parse_geometry(t, coordinates, bbox, geompos, geomfile, VT_MOVETO, fname, jp, &wx, &wy, &initialized);
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serialize_byte(geomfile, VT_END, geompos, fname);
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/*
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* Note that minzoom for lines is the dimension
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* of the geometry in world coordinates, but
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* for points is the lowest zoom level (in tiles,
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* not in pixels) at which it should be drawn.
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*
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* So a line that is too small for, say, z8
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* will have minzoom of 18 (if tile detail is 10),
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* not 8.
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*/
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int minzoom = 0;
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if (mb_geometry[t] == VT_LINE) {
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for (minzoom = 0; minzoom < 31; minzoom++) {
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unsigned mask = 1 << (32 - (minzoom + 1));
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if (((bbox[0] & mask) != (bbox[2] & mask)) || ((bbox[1] & mask) != (bbox[3] & mask))) {
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break;
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}
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}
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} else if (mb_geometry[t] == VT_POINT) {
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double r = ((double) rand()) / RAND_MAX;
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if (r == 0) {
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r = .00000001;
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}
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minzoom = maxzoom - floor(log(r) / -log(droprate));
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}
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serialize_byte(geomfile, minzoom, geompos, fname);
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struct index index;
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index.start = geomstart;
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index.end = *geompos;
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index.index = encode(bbox[0] / 2 + bbox[2] / 2, bbox[1] / 2 + bbox[3] / 2);
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fwrite_check(&index, sizeof(struct index), 1, indexfile, fname);
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*indexpos += sizeof(struct index);
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for (i = 0; i < 2; i++) {
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if (bbox[i] < file_bbox[i]) {
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file_bbox[i] = bbox[i];
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}
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}
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for (i = 2; i < 4; i++) {
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if (bbox[i] > file_bbox[i]) {
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file_bbox[i] = bbox[i];
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}
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}
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if (*seq % 10000 == 0) {
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if (!quiet) {
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fprintf(stderr, "Read %.2f million features\r", *seq / 1000000.0);
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}
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}
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(*seq)++;
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return 1;
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}
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int read_json(int argc, char **argv, char *fname, const char *layername, int maxzoom, int minzoom, sqlite3 *outdb, struct pool *exclude, struct pool *include, int exclude_all, double droprate, int buffer, const char *tmpdir, double gamma, char *prevent) {
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int ret = EXIT_SUCCESS;
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@ -537,8 +690,7 @@ int read_json(int argc, char **argv, char *fname, const char *layername, int max
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found_hashes++;
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if (found_hashes == 50 && found_features == 0) {
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fprintf(stderr, "%s:%d: Not finding any GeoJSON features in input. Is your file just bare geometries?\n", reading, jp->line);
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break;
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fprintf(stderr, "%s:%d: Not finding any GeoJSON features in input after 50 objects. Is your file just bare geometries?\n", reading, jp->line);
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}
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}
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@ -556,24 +708,6 @@ int read_json(int argc, char **argv, char *fname, const char *layername, int max
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continue;
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}
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json_object *geometry_type = json_hash_get(geometry, "type");
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if (geometry_type == NULL) {
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static int warned = 0;
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if (!warned) {
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fprintf(stderr, "%s:%d: null geometry (additional not reported)\n", reading, jp->line);
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warned = 1;
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}
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json_free(j);
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continue;
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}
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if (geometry_type->type != JSON_STRING) {
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fprintf(stderr, "%s:%d: geometry without type\n", reading, jp->line);
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json_free(j);
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continue;
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}
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json_object *properties = json_hash_get(j, "properties");
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if (properties == NULL || (properties->type != JSON_HASH && properties->type != JSON_NULL)) {
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fprintf(stderr, "%s:%d: feature without properties hash\n", reading, jp->line);
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@ -581,141 +715,14 @@ int read_json(int argc, char **argv, char *fname, const char *layername, int max
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continue;
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}
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json_object *coordinates = json_hash_get(geometry, "coordinates");
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if (coordinates == NULL || coordinates->type != JSON_ARRAY) {
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fprintf(stderr, "%s:%d: feature without coordinates array\n", reading, jp->line);
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json_free(j);
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continue;
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}
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int t;
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for (t = 0; t < GEOM_TYPES; t++) {
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if (strcmp(geometry_type->string, geometry_names[t]) == 0) {
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break;
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json_object *geometries = json_hash_get(geometry, "geometries");
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if (geometries != NULL) {
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int g;
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for (g = 0; g < geometries->length; g++) {
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serialize_geometry(geometries->array[g], properties, reading, jp, &seq, &metapos, &geompos, &indexpos, exclude, include, exclude_all, metafile, geomfile, indexfile, poolfile, treefile, fname, maxzoom, n, droprate, file_bbox);
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}
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}
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if (t >= GEOM_TYPES) {
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fprintf(stderr, "%s:%d: Can't handle geometry type %s\n", reading, jp->line, geometry_type->string);
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json_free(j);
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continue;
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}
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{
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unsigned bbox[] = {UINT_MAX, UINT_MAX, 0, 0};
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int nprop = 0;
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if (properties->type == JSON_HASH) {
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nprop = properties->length;
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}
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long long metastart = metapos;
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char *metakey[nprop];
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char *metaval[nprop];
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int metatype[nprop];
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int m = 0;
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int i;
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for (i = 0; i < nprop; i++) {
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if (properties->keys[i]->type == JSON_STRING) {
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if (exclude_all) {
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if (!is_pooled(include, properties->keys[i]->string, VT_STRING)) {
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continue;
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}
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} else if (is_pooled(exclude, properties->keys[i]->string, VT_STRING)) {
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continue;
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}
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metakey[m] = properties->keys[i]->string;
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if (properties->values[i] != NULL && properties->values[i]->type == JSON_STRING) {
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metatype[m] = VT_STRING;
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metaval[m] = properties->values[i]->string;
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m++;
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} else if (properties->values[i] != NULL && properties->values[i]->type == JSON_NUMBER) {
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metatype[m] = VT_NUMBER;
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metaval[m] = properties->values[i]->string;
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m++;
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} else if (properties->values[i] != NULL && (properties->values[i]->type == JSON_TRUE || properties->values[i]->type == JSON_FALSE)) {
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metatype[m] = VT_BOOLEAN;
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metaval[m] = properties->values[i]->type == JSON_TRUE ? "true" : "false";
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m++;
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} else if (properties->values[i] != NULL && (properties->values[i]->type == JSON_NULL)) {
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;
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} else {
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fprintf(stderr, "%s:%d: Unsupported property type for %s\n", reading, jp->line, properties->keys[i]->string);
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continue;
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}
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}
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}
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serialize_int(metafile, m, &metapos, fname);
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for (i = 0; i < m; i++) {
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serialize_long_long(metafile, addpool(poolfile, treefile, metakey[i], VT_STRING), &metapos, fname);
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serialize_long_long(metafile, addpool(poolfile, treefile, metaval[i], metatype[i]), &metapos, fname);
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}
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long long geomstart = geompos;
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serialize_byte(geomfile, mb_geometry[t], &geompos, fname);
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serialize_long_long(geomfile, n, &geompos, fname);
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serialize_long_long(geomfile, metastart, &geompos, fname);
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long long wx = initial_x, wy = initial_y;
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parse_geometry(t, coordinates, bbox, &geompos, geomfile, VT_MOVETO, fname, jp, &wx, &wy, &initialized);
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serialize_byte(geomfile, VT_END, &geompos, fname);
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/*
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* Note that minzoom for lines is the dimension
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* of the geometry in world coordinates, but
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* for points is the lowest zoom level (in tiles,
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* not in pixels) at which it should be drawn.
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*
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* So a line that is too small for, say, z8
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* will have minzoom of 18 (if tile detail is 10),
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* not 8.
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*/
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int minzoom = 0;
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if (mb_geometry[t] == VT_LINE) {
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for (minzoom = 0; minzoom < 31; minzoom++) {
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unsigned mask = 1 << (32 - (minzoom + 1));
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if (((bbox[0] & mask) != (bbox[2] & mask)) || ((bbox[1] & mask) != (bbox[3] & mask))) {
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break;
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}
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}
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} else if (mb_geometry[t] == VT_POINT) {
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double r = ((double) rand()) / RAND_MAX;
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if (r == 0) {
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r = .00000001;
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}
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minzoom = maxzoom - floor(log(r) / -log(droprate));
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}
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serialize_byte(geomfile, minzoom, &geompos, fname);
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struct index index;
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index.start = geomstart;
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index.end = geompos;
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index.index = encode(bbox[0] / 2 + bbox[2] / 2, bbox[1] / 2 + bbox[3] / 2);
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fwrite_check(&index, sizeof(struct index), 1, indexfile, fname);
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indexpos += sizeof(struct index);
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for (i = 0; i < 2; i++) {
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if (bbox[i] < file_bbox[i]) {
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file_bbox[i] = bbox[i];
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}
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}
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for (i = 2; i < 4; i++) {
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if (bbox[i] > file_bbox[i]) {
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file_bbox[i] = bbox[i];
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}
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}
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if (seq % 10000 == 0) {
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if (!quiet) {
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fprintf(stderr, "Read %.2f million features\r", seq / 1000000.0);
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}
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}
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seq++;
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} else {
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serialize_geometry(geometry, properties, reading, jp, &seq, &metapos, &geompos, &indexpos, exclude, include, exclude_all, metafile, geomfile, indexfile, poolfile, treefile, fname, maxzoom, n, droprate, file_bbox);
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}
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json_free(j);
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