ProcrustesSubLayout.h

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#pragma once
 
#include <ogdf/basic/LayoutModule.h>
#include <ogdf/basic/basic.h>
 
namespace ogdf {
class GraphAttributes;
 
class ProcrustesPointSet {
public:
    explicit ProcrustesPointSet(int numPoints);
 
    ~ProcrustesPointSet();
 
    void normalize(bool flip = false);
 
    void rotateTo(const ProcrustesPointSet& other);
 
    double compare(const ProcrustesPointSet& other) const;
 
    void set(int i, double x, double y) {
        m_x[i] = x;
        m_y[i] = y;
    }
 
    double getX(int i) const { return m_x[i]; }
 
    double getY(int i) const { return m_y[i]; }
 
    double originX() const { return m_originX; }
 
    double originY() const { return m_originY; }
 
    double scale() const { return m_scale; }
 
    double angle() const { return m_angle; }
 
    bool isFlipped() const { return m_flipped; }
 
private:
    int m_numPoints;
 
    double* m_x;
 
    double* m_y;
 
    double m_originX;
 
    double m_originY;
 
    double m_scale;
 
    double m_angle;
 
    bool m_flipped;
};
 
class OGDF_EXPORT ProcrustesSubLayout : public LayoutModule {
public:
    explicit ProcrustesSubLayout(LayoutModule* pSubLayout);
 
    virtual ~ProcrustesSubLayout() { delete m_pSubLayout; }
 
    virtual void call(GraphAttributes& GA) override;
 
    void setScaleToInitialLayout(bool flag) { m_scaleToInitialLayout = flag; }
 
    bool scaleToInitialLayout() const { return m_scaleToInitialLayout; }
 
private:
    void reverseTransform(GraphAttributes& graphAttributes, const ProcrustesPointSet& pointSet);
 
    void translate(GraphAttributes& graphAttributes, double dx, double dy);
 
    void rotate(GraphAttributes& graphAttributes, double angle);
 
    void scale(GraphAttributes& graphAttributes, double scale);
 
    void flipY(GraphAttributes& graphAttributes);
 
    void copyFromGraphAttributes(const GraphAttributes& graphAttributes,
            ProcrustesPointSet& pointSet);
 
    LayoutModule* m_pSubLayout;
 
    bool m_scaleToInitialLayout;
};
 
}