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HxUpoSetPartImage.h

/*
 *  Copyright (c) 2002, University of Amsterdam, The Netherlands.
 *  All rights reserved.
 *
 *  Author(s):
 *  Leon Todoran (todoran@science.uva.nl)
 *
 */

#ifndef HxUpoSetPartImage_h
#define HxUpoSetPartImage_h

#include "HxTagList.h"
#include "HxClassName.h"
#include "HxCategories.h"

#include "HxValue.h"



template<class DstValT, class SrcValT>
class HxUpoSetPartImage
{
public:
    typedef HxTagTransVar TransVarianceCategory;

                        HxUpoSetPartImage(HxTagList& tag) {
                        x1=HxGetTag(tag,"x1",0);
                        y1=HxGetTag(tag,"y1",0);
                        x2=HxGetTag(tag,"x2",0);
                        y2=HxGetTag(tag,"y2",0);

                        inside=HxGetTag(tag,"inside",true);

                        HxValue hv = HxGetTag<HxValue>(tag,"val");
                        val = hv;
                        }

    DstValT             doIt(const SrcValT& v, int x, int y, int z)
                        {
                            if(inside)
                            {           
                                if(x>=x1 && x<=x2 && y>=y1 && y<=y2)
                                    return val;
                                return v;
                            }
                            else //fill the outside of specified rectangle
                            {           
                                if(x>=x1 && x<=x2 && y>=y1 && y<=y2)
                                    return v;
                                return val;
                            }

                        }
    static HxString     className() { return HxString("setPartImg"); }
private:
    int x1,y1,x2,y2;
    SrcValT val;
    bool inside;
};


#endif

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