/**
  * 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;
 }
 /**
  * @expectedException Exception
  */
 public function testSetZValueInvalid()
 {
     $matrixObject = new TranslationVectors($this->_xyz);
     $fluidReturn = $matrixObject->setZ();
 }