#include #include #include #include #include my_bool tile_for_point_init(UDF_INIT *initid, UDF_ARGS *args, char *message) { if ( args->arg_count != 2 || args->arg_type[0] != INT_RESULT || args->arg_type[1] != INT_RESULT ) { strcpy( message, "Your tile_for_point arguments are bogus!" ); return 1; } return 0; } void tile_for_point_deinit(UDF_INIT *initid) { return; } long long tile_for_point(UDF_INIT *initid, UDF_ARGS *args, char *is_null, char *error) { long long lat = *(long long *)args->args[0]; long long lon = *(long long *)args->args[1]; return xy2tile(lon2x(lon / 1000000.0), lat2y(lat / 1000000.0)); }