Change Details

/** * Geo octocube class * * An octocube is a cube divided in 8 parts (sliced in two in x, y and z) * * Its coordinate (0, 0, 0) is the octocube center. */ class GeoOctocube { /** * Gets the sector from the (x, y, z) specified coordinates * * Sector will be: * <code> * // _____ _____ * // / 5 / 6 /| * // /- - -/- - -/ | * // /_____/____ /| | * // | | | |/| * // | 7 | 8 | / | 2 * // |_____|_____|/| | * // | | | |/ * // | 3 | 4 | / * // |_____|_____|/ * </code> * * @param int $x the x coordinate * @param int $y the y coordinate * @param int $z the z coordinate * @return int the number of the sector (0 if x = y = z 0 ; otherwise, 1 to 8) */ static function get_sector ($x, $y, $z) { //Cube center if ($x == 0 && $y == 0 && $z == 0) return 0; //One of the 8 cubes $sector = 1; if ($x >= 0) $sector++; //we're at right if ($y < 0) $sector += 2; //we're in front if ($z >= 0) $sector += 4; //we're on the top layer return $sector; } /** * Gets the sector from the (x, y, z) specified coordinates * @see get_sector * * @param GeoPoint3D $pt the x, y, z coordinates * @return int the number of the sector (0 if x = y = z 0 ; otherwise, 1 to 8) */ static function get_sector_from_point3D ($pt) { return get_sector($pt->x, $pt->y, $pt->z); } }