テンプレ - パラボラの説明書

GrWin基本部

#include <math.h>
#include <GrWin.h>
#define MAG 50
void main(){
      int width = 640,height = 480;
      int xhome = width / 2,yhome = height / 2;
      double x,y,th,x0,y0,x1,y1;
     
      GWopen(0);
      GWsize( -5 , &width , &height );
      GWsize( -3 , NULL , NULL );
      GWvport(0.0 , 0.0 , (float)width / (float)height , 1.0);
      GWindow(0.0 , (float)height-1.0 , (float)width-1.0 , 0.0);
       
      GWclear(GWC_WHITE);
      GWsetpen(GWC_BLUE,GWL_SOLID,1,GWX_COPYPEN);
      GWline( 0 , yhome , width , yhome );    //x軸
      GWline( xhome , 0 , xhome , height);    //y軸
       
      GWsetpen(GWC_BLACK,GWL_SOLID,1,GWX_COPYPEN);
 
      //グラフの描画部      
}