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Don't allow <0 gamma (randomized) if basezoom or droprate not known

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This commit is contained in:
Eric Fischer 2015-12-16 12:33:07 -08:00
parent 6681817243
commit b7a411769a
1 changed files with 8 additions and 1 deletions
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9
geojson.c
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@ -1122,7 +1122,7 @@ int read_json(int argc, char **argv, char *fname, const char *layername, int max
if (droprate < 0) {
droprate = 1;
for (z = 0; z <= basezoom; z++) {
for (z = basezoom; z >= 0; z--) {
double interval = exp(log(droprate) * (basezoom - z));
if (max[z].count / interval >= MAX_FEATURES) {
@ -1468,6 +1468,13 @@ int main(int argc, char **argv) {
geometry_scale = 32 - (full_detail + maxzoom);
if ((basezoom < 0 || droprate < 0) && (gamma < 0)) {
// Can't use randomized (as opposed to evenly distributed) dot dropping
// if rate and base aren't known during feature reading.
gamma = 0;
fprintf(stderr, "Forcing -g0 since -B or -r is not known\n");
}
if (outdir == NULL) {
fprintf(stderr, "%s: must specify -o out.mbtiles\n", argv[0]);
exit(EXIT_FAILURE);