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Add an flag to remove all properties and use only geometry

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This commit is contained in:
Eric Fischer
2014-10-09 15:11:43 -07:00
parent dea4335162
commit ac34a292e9
2 changed files with 32 additions and 8 deletions
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tile.cc
+21 -2
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@@ -21,6 +21,7 @@ extern "C" {
}
#define CMD_BITS 3
#define MIN_DETAIL 7
// https://github.com/mapbox/mapnik-vector-tile/blob/master/src/vector_tile_compression.hpp
static inline int compress(std::string const& input, std::string& output) {
@@ -835,13 +836,31 @@ void evaluate(std::vector<coalesce> &features, char *metabase, struct pool *file
fprintf(stderr, "using -x %s would save about %lld, for a tile size of of %lld\n", options[i].name, options[i].val, orig - options[i].val);
}
}
struct pool keys, values;
pool_init(&keys, 0);
pool_init(&values, 0);
long long count = 0;
std::vector<coalesce> empty;
mapnik::vector::tile tile = create_tile(layername, line_detail, features, &count, &keys, &values);
std::string s;
std::string compressed;
tile.SerializeToString(&s);
compress(s, compressed);
fprintf(stderr, "geometry alone (-X) would be %lld\n", (long long) compressed.size());
pool_free(&values);
pool_free(&keys);
}
long long write_tile(struct index *start, struct index *end, char *metabase, unsigned *file_bbox, int z, unsigned tx, unsigned ty, int detail, int basezoom, struct pool *file_keys, char *layername, sqlite3 *outdb, double droprate) {
int line_detail;
static bool evaluated = false;
for (line_detail = detail; line_detail >= 7; line_detail--) {
for (line_detail = detail; line_detail >= MIN_DETAIL; line_detail--) {
GOOGLE_PROTOBUF_VERIFY_VERSION;
struct pool keys, values, dup;
@@ -963,7 +982,7 @@ long long write_tile(struct index *start, struct index *end, char *metabase, uns
if (compressed.size() > 500000) {
fprintf(stderr, "tile %d/%u/%u size is %lld with detail %d, >500000 \n", z, tx, ty, (long long) compressed.size(), line_detail);
if (!evaluated) {
if (line_detail == MIN_DETAIL || !evaluated) {
evaluated = true;
evaluate(features, metabase, file_keys, layername, line_detail, compressed.size());
}