datastruct.cpp

股票分析系统

#include "datastruct.h"

void ZWorld::setWorld(int X,int Y,int W,int H,
                        float x1,float y1,float x2,float y2)
{

        this->X=X;this->Y=Y;
        this->W=W;this->H=H;
        this->x1=x1;this->y1=y1;
        this->x2=x2;this->y2=y2;
        scaleX=(float)W/(x2-x1);
        scaleY=(float)H/(y1-y2);
}

float ZWorld::fx(int x)
{
    return((float)(x-X)/scaleX+x1);
}

float  ZWorld::fy(int y)
{
    return((float)(y-Y)/scaleY+y1);
}