clipping_Algorithm.cpp

// C++ program for point clipping Algorithm
#include <bits/stdc++.h>
using namespace std;


void pointClip(int XY[][2], int n, int Xmin, int Ymin,int Xmax, int Ymax) {
 
 int gd = DETECT,gm ;
// detectgraph(&gm,&gr);
 initgraph(&gm,&gr,"C:\\TC\\BGI");
 for (int i=0; i<n; i++) {
 if ( (XY[i][0] >= Xmin) && (XY[i][0] <= Xmax))
 {
   if ( (XY[i][1] >= Ymin) && (XY[i][1] <= Ymax))
  putpixel(XY[i][0],XY[i][1],3);
 }
 }  
 
 
 cout << "Point inside the viewing pane:" << endl;
 for (int i = 0; i < n; i++) {
  if ((XY[i][0] >= Xmin) && (XY[i][0] <= Xmax)) {
   if ((XY[i][1] >= Ymin) && (XY[i][1] <= Ymax))
    cout <<"[" << XY[i][0] <<","<<XY[i][1]<<"] ";
  }
 }

 // print point coordinate outside viewing pane
 cout<<"\n"<< endl;
 cout << "Point outside the viewing pane:"<<endl;
 for (int i = 0; i < n; i++)  {
  if ((XY[i][0] < Xmin) || (XY[i][0] > Xmax))
   cout << "[" << XY[i][0] << "," << XY[i][1] << "] ";
  if ((XY[i][1] < Ymin) || (XY[i][1] > Ymax))
   cout << "[" << XY[i][0] << "," << XY[i][1] << "] ";
 }
}


int main() {
 int XY[6][2] = {{10, 10}, {-10, 10}, {400, 100},
     {100, 400}, {400, 400}, {100, 40}};

 int Xmin = 0;
 int Xmax = 350;
 int Ymin = 0;
 int Ymax = 350;
 pointClip(XY, 6, Xmin, Ymin, Xmax, Ymax);
 return 0;
}