BasicGeometryOperations.h

Go to the documentation of this file.

#ifndef BasicGeometryOperations_H_
#define BasicGeometryOperations_H_

#include "algorithms/geometries/Channel.h"
#include "tarch/la/Vector.h"

//todo move this function into a geometry operations class...
//tarch::la::Vector<2,double>&
//rotatePoint(
//    tarch::la::Vector<2,double>& pointToBeRotated,
//    const double& sinRotationAngle,
//    const double& cosRotationAngle,
//    const double& rotationCenterX,
//    const double& rotationCenterY
//);
//
// * Rotates the Point around the offspring
// */
//algorithms::geometries::Channel
//rotateChannel(
//    algorithms::geometries::Channel& channelToBeRotated,
//    const double& rotationAngle,
//    const double& sinRotationAngle,
//    const double& cosRotationAngle,
//    const tarch::la::Vector<2,double>& rotationCenter,
//);
//
//std::vector<algorithms::geometries::Channel*>
//getPtrVectorGeometryChannels(
//    std::vector<algorithms::geometries::Channel>& channels
//);

  /*
   * BasicGeometryOperations.cpp
   *
   *  Created on: Mar 13, 2012
   *      Author: michael
   */


  //todo move this function into a geometry operations class...
  static tarch::la::Vector<2,double>&
  rotatePoint(
      tarch::la::Vector<2,double>& pointToBeRotated,
      const double& sinRotationAngle,
      const double& cosRotationAngle,
      const double& rotationCenterX,
      const double& rotationCenterY
  ) {
    double x=pointToBeRotated(0)-rotationCenterX;
    double y=pointToBeRotated(1)-rotationCenterY;
    pointToBeRotated(0)=cosRotationAngle*x-sinRotationAngle*y+rotationCenterX;
    pointToBeRotated(1)=sinRotationAngle*x+cosRotationAngle*y+rotationCenterY;
    return pointToBeRotated;
  }

#endif // BasicGeometryOperations_H_