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Add the option to use a different simplification level at maxzoom (#17)

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* Add an option to specify a different simplification at maxzoom

* Add test
This commit is contained in:
Erica Fischer
2022-10-03 12:18:02 -07:00
committed by GitHub
parent 4ef430b913
commit a6abb0bc30
8 changed files with 4052 additions and 5 deletions
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main.cpp
+10 -1
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@@ -76,6 +76,7 @@ double progress_interval = 0;
std::atomic<double> last_progress(0);
int geometry_scale = 0;
double simplification = 1;
double maxzoom_simplification = -1;
size_t max_tile_size = 500000;
size_t max_tile_features = 200000;
int cluster_distance = 0;
@@ -2421,7 +2422,7 @@ int read_input(std::vector<source> &sources, char *fname, int maxzoom, int minzo
std::atomic<unsigned> midx(0);
std::atomic<unsigned> midy(0);
std::vector<strategy> strategies;
int written = traverse_zooms(fd, size, meta, stringpool, &midx, &midy, maxzoom, minzoom, outdb, outdir, buffer, fname, tmpdir, gamma, full_detail, low_detail, min_detail, meta_off, pool_off, initial_x, initial_y, simplification, layermaps, prefilter, postfilter, attribute_accum, filter, strategies);
int written = traverse_zooms(fd, size, meta, stringpool, &midx, &midy, maxzoom, minzoom, outdb, outdir, buffer, fname, tmpdir, gamma, full_detail, low_detail, min_detail, meta_off, pool_off, initial_x, initial_y, simplification, maxzoom_simplification, layermaps, prefilter, postfilter, attribute_accum, filter, strategies);
if (maxzoom != written) {
if (written > minzoom) {
@@ -2727,6 +2728,7 @@ int main(int argc, char **argv) {
{"simplification", required_argument, 0, 'S'},
{"no-line-simplification", no_argument, &prevent[P_SIMPLIFY], 1},
{"simplify-only-low-zooms", no_argument, &prevent[P_SIMPLIFY_LOW], 1},
{"simplification-at-maximum-zoom", required_argument, 0, '~'},
{"no-tiny-polygon-reduction", no_argument, &prevent[P_TINY_POLYGON_REDUCTION], 1},
{"tiny-polygon-size", required_argument, 0, '~'},
{"no-simplification-of-shared-nodes", no_argument, &prevent[P_SIMPLIFY_SHARED_NODES], 1},
@@ -2884,6 +2886,13 @@ int main(int argc, char **argv) {
order_by.push_back(order_field(optarg, false));
} else if (strcmp(opt, "order-descending-by") == 0) {
order_by.push_back(order_field(optarg, true));
} else if (strcmp(opt, "simplification-at-maximum-zoom") == 0) {
maxzoom_simplification = atof_require(optarg, "Mazoom simplification");
if (maxzoom_simplification <= 0) {
fprintf(stderr, "%s: --simplification-at-maximum-zoom must be > 0\n", argv[0]);
exit(EXIT_ARGS);
}
break;
} else {
fprintf(stderr, "%s: Unrecognized option --%s\n", argv[0], opt);
exit(EXIT_ARGS);