isEmpty()) { return $this; } $point = $point->withoutM(); if ($this->cs === null) { $this->cs = $point->coordinateSystem(); } elseif (! $this->cs->isEqualTo($point->coordinateSystem())) { throw CoordinateSystemException::dimensionalityMix($this->cs, $point->coordinateSystem()); } $x = $point->x(); $y = $point->y(); $z = $point->z(); $swX = ($this->swX === null) ? $x : min($this->swX, $x); $swY = ($this->swY === null) ? $y : min($this->swY, $y); $neX = ($this->neX === null) ? $x : max($this->neX, $x); $neY = ($this->neY === null) ? $y : max($this->neY, $y); if ($z !== null) { $swZ = ($this->swZ === null) ? $z : min($this->swZ, $z); $neZ = ($this->neZ === null) ? $z : max($this->neZ, $z); } else { $swZ = null; $neZ = null; } if ( $swX === $this->swX && $swY === $this->swY && $swZ === $this->swZ && $neX === $this->neX && $neY === $this->neY && $neZ === $this->neZ ) { return $this; } $that = clone $this; $that->swX = $swX; $that->swY = $swY; $that->swZ = $swZ; $that->neX = $neX; $that->neY = $neY; $that->neZ = $neZ; return $that; } /** * Returns a copy of this BoundingBox extended with the given BoundingBox. * * @throws CoordinateSystemException */ public function extendedWithBoundingBox(BoundingBox $boundingBox) : BoundingBox { if ($boundingBox->isEmpty()) { return $this; } return $this ->extendedWithPoint($boundingBox->getSouthWest()) ->extendedWithPoint($boundingBox->getNorthEast()); } public function isEmpty() : bool { return $this->cs === null; } /** * Returns the south-west XY or XYZ point. * * @throws EmptyGeometryException */ public function getSouthWest() : Point { if ($this->cs === null) { throw new EmptyGeometryException('The bounding box is empty.'); } if ($this->cs->hasZ()) { $coords = [$this->swX, $this->swY, $this->swZ]; } else { $coords = [$this->swX, $this->swY]; } /** @var list $coords */ return new Point($this->cs, ...$coords); } /** * Returns the north-east XY or XYZ point. * * @throws EmptyGeometryException */ public function getNorthEast() : Point { if ($this->cs === null) { throw new EmptyGeometryException('The bounding box is empty.'); } if ($this->cs->hasZ()) { $coords = [$this->neX, $this->neY, $this->neZ]; } else { $coords = [$this->neX, $this->neY]; } /** @var list $coords */ return new Point($this->cs, ...$coords); } }