AF2PntTrnsfrmLnrV.hpp

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/*
 * AF2PntTrnsfmLnrV.hpp
 *
 * \brief A point transformation that moves the point by some linear
 * transformation of the difference between the points that specified
 * reference vertices are bound to and the locations of the reference
 * vertices themselves.
 *
 * This implementation does not make use of a linear transformation matrix.
 * Instead it performs the low-level calculations of multiplying coefficients
 * by the vertex binding differences and summing the result.
 */

#ifndef AF2PNTTRNSFRMLNRV_HPP
#define AF2PNTTRNSFRMLNRV_HPP

// C++
#include <list>
#include <vector>

// MeshKit
#include "meshkit/AF2PointTransform.hpp"
#include "meshkit/AF2RuleExistVertex.hpp"

class AF2PntTrnsfrmLnrV : public AF2PointTransform
{
  private:

    std::vector<const AF2RuleExistVertex*> refVertices;
    std::vector<double> xCoeff;
    std::vector<double> yCoeff;

  public:

    AF2PntTrnsfrmLnrV(std::list<const AF2RuleExistVertex*> vertices,
        std::list<double> xDiffCoeff, std::list<double> yDiffCoeff);

    AF2PntTrnsfrmLnrV(std::vector<const AF2RuleExistVertex*> vertices,
        std::vector<double> xDiffCoeff, std::vector<double> yDiffCoeff);

    virtual AF2PntTrnsfrmLnrV* clone() const;

    virtual AF2Point2D transformPoint(AF2Point2D const & point,
        AF2Binding const & vBinding) const;
};

#endif