source: branches/blt4/packages/vizservers/nanovis/ContourLineFilter.h @ 2742

#ifndef _CONTOURFILTER_H_
#define _CONTOURFILTER_H_

#include "Vector3.h"
#include "Vector4.h"
#include "TypeDefs.h"
#include <R2/graphics/R2Geometry.h>
#include <list>

class ContourLineFilter {
public :
    class ContourLine {
    public :
        float _value;
        std::list<Vector3> _points;
    public :
        ContourLine(float value);
        
    private :
        bool isValueWithIn(float v1, float v2) {
            return ((_value >= v1 && _value <= v2) || 
                    (_value >= v2 && _value <= v1));
        }
        void getContourPoint(int vertexIndex1, int vertexIndex2, Vector3* vertices, int width, bool top);
        void getContourPoint(int vertexIndex1, int vertexIndex2, Vector4* vertices, int width, bool top);
    public :  
        /**
         * @brief
         * @ret Returns the number of points
         */
        int createLine(int width, int height, Vector3* vertices, bool top);
        int createLine(int width, int height, Vector4* vertices, bool top);
    };
    
    typedef std::list<ContourLine*> ContourLineList;
    
private :
    ContourLineList _lines;
    Vector3Array* _colorMap;
    bool _top;
public :
    ContourLineFilter();
    
private :
    void clear();
    
public :
    R2Geometry* create(float min, float max, int linecount, Vector3* vertices, int width, int height);
    R2Geometry* create(float min, float max, int linecount, Vector4* vertices, int width, int height);
    void setColorMap(Vector3Array* colorMap);
    
    void setHeightTop(bool top)
    {
        _top = top;
    }
};

#endif