/**
  * Reverse the sign of all the Bursa-Wolf parameter values
  *
  * @return    void
  */
 public function invert()
 {
     $this->translationVectors->getX()->invertValue();
     $this->translationVectors->getY()->invertValue();
     $this->translationVectors->getZ()->invertValue();
     $this->rotationMatrix->getX()->invertValue();
     $this->rotationMatrix->getY()->invertValue();
     $this->rotationMatrix->getZ()->invertValue();
     $this->scaleFactor = 0 - $this->scaleFactor;
 }
 public function testSetZValue()
 {
     $matrixObject = new TranslationVectors($this->_xyz);
     $fluidReturn = $matrixObject->setZ($this->_distance);
     $matrixZValue = $matrixObject->getZ();
     $this->assertTrue(is_object($matrixZValue));
     $this->assertTrue(is_a($matrixZValue, 'Geodetic\\Distance'));
     $this->assertEquals(12345.0, $matrixZValue->getValue());
     //    Test fluid return object
     $this->assertTrue(is_object($fluidReturn));
     //    ... of the correct type
     $this->assertTrue(is_a($fluidReturn, 'Geodetic\\TranslationVectors'));
 }