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Calculate a bounding box and hopefully reasonable center point

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This commit is contained in:
Eric Fischer 2014-09-23 16:41:38 -07:00
parent 5d7a2f50a9
commit 8f77376b58
1 changed files with 6 additions and 0 deletions
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6
geojson.c
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@ -573,6 +573,12 @@ next_feature:
double minlat = 0, minlon = 0, maxlat = 0, maxlon = 0, midlat = 0, midlon = 0;
tile2latlon(file_bbox[0], file_bbox[1], 32, &maxlat, &minlon);
tile2latlon(file_bbox[2], file_bbox[3], 32, &minlat, &maxlon);
midlat = (maxlat + minlat) / 2;
midlon = (maxlon + minlon) / 2;
fprintf(fp, "\"version\": 1,\n");
fprintf(fp, "\"minzoom\": %d,\n", 0);
fprintf(fp, "\"maxzoom\": %d,\n", BASE_ZOOM);