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Computer Graphics

Graphics Editor code Using C++ Language

April 5, 2011 by ProjectsGeek Leave a Comment

Graphics Editor code Using C++ Language

Write a Graphics Editor program to develop a graphics editor which includes features like  line draw, rectangle draw,circle draw, pie chart draw,ellipse draw,polygon draw,bard raw, pixel draw,text draw etc.

Graphics Editor have a menu for user interaction from which user can provide input to program.By selecting appropriate option user will get output.

 

Graphics Editor code

 

 
 #include  
 #include  
 #include  
 #include  
 #include  
 class figures  
 {  
   int x1,y1,x2,y2,rad,xrad,yrad,startang,endang,midx,midy;  
   public:  
   figures()  
   {  
     x1=0;  
     y1=0;  
     x2=0;  
     y2=0;  
     rad=0;  
     xrad=0;  
     startang=0;  
     endang=0;  
     midx=getmaxx();  
     midy=getmaxy();  
   }  
       ~figures()  
   {  
   void linedraw(void);  
   void rectangledraw(void);  
   void circledraw(void);  
   void piechartdraw();  
   void ellipsedraw(void);  
   void polygondraw(void);  
   void bardraw(void);  
   void pixeldraw(void);  
   void textdraw(void);  
 };  
 void figures::linedraw(void)  
 {  
   int gd=DETECT,gm;  
   cout<<"x1 is ";  
   cin>>x1;  
   cout<<"y1 is ";  
   cin>>y1;  
   cout<<"x2 is ";  
   cin>>x2;  
   cout<<"y2 is ";  
   cin>>y2;  
   getch();  
   clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"A LINE");  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   setcolor(YELLOW);  
   line(x1+midx,midy-y1,x2+midx,midy-y2);  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::rectangledraw(void)  
 {  
   int gd=DETECT,gm;  
   cout<<"x1 is ";  
   cin>>x1;  
   cout<<"y1 is ";  
   cin>>y1;  
   cout<<"x2 is ";  
   cin>>x2;  
   cout<<"y2 is ";  
   cin>>y2;  
   getch();  
   clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"A RECTANGLE");  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   setcolor(YELLOW);  
   rectangle(x1+midx,midy-y1,x2+midx,midy-y2);  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::circledraw(void)  
 {  
   int gd=DETECT,gm;  
   cout<<"CENTER POINTS"<<endl; <br="">   cout<<"x1 is ";  
   cin>>x1;  
   cout<<"y1 is ";  
   cin>>y1;  
   cout<<"r is ";  
   cin>>rad;  
   getch();  
   clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"A CIRCLE"); //use setaspestratio  
   setcolor(YELLOW);  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   setcolor(YELLOW);  
   circle(x1+midx,midy-y1,rad);  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::ellipsedraw()  
 {  
   int gd=DETECT,gm;  
   cout<<"CENTER POINTS"<<endl; <br="">   cout<<"x1 is ";  
   cin>>x1;  
   cout<<"y1 is ";  
   cin>>y1;  
   cout<<"horizontal axis is ";  
   cin>>xrad;  
   cout<<"vertical axis is ";  
   cin>>yrad;  
   cout<<"starting angle is ";  
   cin>>startang;  
   cout<<"ending angle is ";  
   cin>>endang;  
   getch();  
   clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"AN ELLIPSE");  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   setcolor(YELLOW);  
   ellipse(x1+midx,midy-y1,startang,endang,xrad+midx,midy-yrad);  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::piechartdraw(void)  
 {  
   int gd=DETECT,gm,d=0,i,sum=0;  
   int a[10];  
   cout<<"how many data you want to enter"<<endl; <br="">   cin>>d;  
   for(i=0;i<d-1;i++) <br="">   {  
     cout<<"percentage of data  "<<i+1<<" =="<<endl;  
     cin>>a[i];  
     sum=sum+a[i];  
   }  
   a[i]=100-sum;  
   cout<<" percentage="" of="" data="" "<<i+1<<"="=" "<<100-sum<<endl;="" <br="">   getch();  
   clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"A PIECHART");  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   startang=0;  
   endang=0;  
   for(i=0;i<d;i++) <br="">   {  
     startang=endang;  
     endang=startang+(a[i]*360)/100;  
     setfillstyle(SOLID_FILL,i+3);  
     pieslice(midx,midy,startang,endang,150);  
   }  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::polygondraw()  
 {  
   int gd=DETECT,gm;  
   int poly[20],i=0;  
   char other;  
   cout<<"Enter vertices of the polygon"<<endl; <br="">   do  
   {  
     cout<<"x is ";  
     cin>>poly[i];  
     poly[i]=poly[i]+318;  
     i++;  
     cout<<"y is ";  
     cin>>poly[i];  
     poly[i]=-poly[i]+237;  
     i++;  
     cout<<endl<<"want to="" enter="" again";="" <br="">     cin>>other;  
   }while(other=='y');  
   //closing polygon  
   poly[i++]=poly[0];  
   poly[i]=poly[1];  
   clrscr();  
    i=(i+1)/2;  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(RED);  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   setfillstyle(SOLID_FILL,GREEN);  
    //use fillpoly to fill color  
    fillpoly(i,poly);//drawpoly(number of point we have entered,array);  
    getch();  //includes closing point also therefore i+1  
   cleardevice();  
   closegraph();  
 }  
 void figures::bardraw()  
 {  
   int gd=DETECT,gm,d=0,i,a[10],sum=0;  
     cout<<"how many data you want to enter"<<endl; <br="">   cin>>d;  
   for(i=0;i<d-1;i++) <br="">   {  
     cout<<"percentage of data  "<<i+1<<" =="<<endl;  
     cin>>a[i];  
         sum=sum+a[i];  
   }  
     a[i]=100-sum;  
     cout<<" percentage="" of="" data="" "<<i+1<<"="=" "<<100-sum<<endl;="" <br="">     getch();  
     clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"A BARGRAPH");  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
     for(i=0;i<d;i++) <br="">   {  
         setfillstyle(SOLID_FILL,i+3);  
         bar(45*(i+1)+midx,midy-((a[i]*100)/100),midx+(45*(i+1))+20,midy);    //(width,height,dist from y axis,bottom down)  
   }  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::pixeldraw(void)  
 {  
   int gd=DETECT,gm;  
   cout<<"x1 is ";  
   cin>>x1;  
   cout<<"y1 is ";  
   cin>>y1;  
   getch();  
   clrscr();  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   midx=getmaxx()/2;  
   midy=getmaxy()/2;  
   setcolor(4);  
   outtextxy(20+x1,20+y1,"A PIXEL");  
   line(0,midy,midx*2,midy);  
   line(midx,0,midx,2*midy);  
   setcolor(YELLOW);  
   outtextxy(midx+x1,midy-y1,"(x1,y1)");  
   putpixel(midx+x1,midy-y1,YELLOW);  
   getch();  
   cleardevice();  
   closegraph();  
 }  
 void figures::textdraw() //graphics textstyle //cprintf  
 {  
   int gd=DETECT,gm;  
   initgraph(&gd,&gm,"c:\\tc\\bgi");  
   for(int i=0;i<4;i++)  
   {  
     textmode(i);  
     cout<<"C";  
     getch();  
   }  
   closegraph();  
 }  
 void main(void)  
 {  
   figures draw;  
   int ch,ch1,i,n;  
   clrscr();  
   do  
   {  
     clrscr();  
     draw.menu();  
     cin>>ch;  
     switch(ch)  
     {  
       case 1:  
         clrscr();  
         cout<<"HOW MANY LINE U WANT:";  
         cin>>n;  
         for(i=0;i<n;i++) <br="">           draw.linedraw();  
         break;  
       case 2:  
         clrscr();  
         cout<<"HOW MANY LINE U WANT:";  
         cin>>n;  
         for(i=0;i<n;i++) <br="">           draw.circledraw();  
         break;  
       case 3:  
         clrscr();  
         draw.ellipsedraw();  
         break;  
       case 4:  
         clrscr();  
         draw.piechartdraw();  
         break;  
       case 5:  
         clrscr();  
         draw.polygondraw();  
         break;  
       case 6:  
         clrscr();  
         draw.bardraw();  
         break;  
       case 7:  
         cout<<"HOW MANY LINE U WANT:";  
         cin>>n;  
         for(i=0;i<n;i++) <br="">           draw.pixeldraw();  
         break;  
       case 8:  
         draw.rectangledraw;  
         break;  
       case 9:  
         draw.textdraw();  
         break;  
       case 10:  
         break;  
       default:  
         cout<<"\nINVALID CHOICE";  
         }  
     }while(ch!=9);  
 getch();  
 }

 

 

Other Projects to Try:

  1. Transformations computer graphics using C++ Language
  2. Boundary and Flood Fill Algorithms in C++ Language
  3. Bressenham and DDA Line Drawing algorithms
  4. Matrix Operations in C Language
  5. Text or Screen Editor in C++ Language

Filed Under: Computer Graphics Tagged With: Computer Graphics

Weather report program in c++ using constructor

April 5, 2011 by ProjectsGeek Leave a Comment

Weather report program in c++ using constructor

Create a class named weather report that holds a daily weather report with data members dayofmonth,high temp , low temp ,amount rain and amount snow.The constructor initializes the fields with default values. Weather report program in c++ using constructor Includes a function that prompts the user and sets values for each field so that you can override the default values.

Write a program Weather report program in c++ using constructor that creates a monthly report.

 Weather report program in c++ using constructor Code

 

 #include  
 #include  
 #include  
 class ping  
 {  
     int day,snowfall,rainfall,lowtemp,hightemp;  
     public:  
       static int count ;         
       ping();            
       ping(int,int,int,int,int);      
       ping::ping(ping &z)         
       {  
         day=z.day;  
         hightemp=z.hightemp;  
         lowtemp=z.lowtemp;  
         snowfall=z.snowfall;  
         rainfall=z.rainfall;  
       }  
       int dayno();  
       void daily();  
       void copy(int,int,int,int,int) ;  
       void change(int );  
 };  
 int ping::count ;  
 ping::ping()  
 {  
     day=99;  
     hightemp=999;  
     lowtemp=-999;  
     snowfall=0;  
     rainfall=0;  
     cout<< "\t\t\tRecord created\n";  
 }  
 void ping::change(int dom)  
 {  
   day=dom;  
 }  
 ping::ping(int dom,int ht,int lt,int s,int r)  
 {  
     day= dom;  
     hightemp=ht;  
     lowtemp=lt;  
     snowfall=s;  
     rainfall=r;  
 }  
 void ping::daily()  
 {  
     cout << "\t ";  
     cout << hightemp << "\t\t ";  
     cout << lowtemp << "\t ";  
     cout << snowfall << "\t ";  
     cout << rainfall << "\t ";  
 }  
 int ping::dayno()  
 {  
     return day;  
 }  
 void main()  
 {  
     int ch,i=0,j,flag=0;  
     int k,temp;  
     ping *array[31];  
     do  
       {  
         clrscr();  
         cout << "\t\t\t\t***Main Menu***\n";  
         cout << "\t\t\t\t1.Create Daily Report\n";  
         cout << "\t\t\t\t2.Display Daily Report\n";  
         cout << "\t\t\t\t3.Display Monthly Report\n";  
         cout << "\t\t\t\t4.Delete a record\n";  
         cout << "\t\t\t\t5.Exit\n";  
         cout << "\t\t\t\tEnter your choice:\n";  
         cin >> ch;  
         switch(ch)  
           {  
               case 1:  
                   do  
                   {  
                     int dom;  
                     temp=0 ;  
                     cout<<"\n\t\tEnter date of month: ";  
                     cin>>dom;  
                     array[i]->count++;  
                     if(array[i]->count>1)  
                     {  
                           cout <<"\nDO U WANT TO COPY DATA FROM PREVIOUS DAY (y/n)";  
                           if(getche()=='y'||getche()=='Y')  
                           {  
                                 array[i]=new ping;  
                                 *array[i]=*array[i-1];  
                                 array[i]->change(dom);  
                                 i=i+1;  
                                 temp=1;  
                           }  
                     }  
                     if(temp==0)  
                     {  
                         int ht ;  
                         cout << "\tEnter maximum temperature: ";  
                         cin >> ht;  
                         int lt;  
                         cout << "\tEnter the minimum temperature: ";  
                         cin >> lt;  
                         int s;  
                         cout << "\tEnter amount of snowfall: ";  
                         cin >> s;  
                         int r;  
                         cout << "\tEnter amount of rainfall: ";  
                         cin >> r ;  
                         array[i++]=new ping(dom,ht,lt,r,s);  
             }  
             cout<<"\n\t\tDO U WANT TO ENTER MORE:";  
         }while(getche()=='y'||getche()=='Y');  
           break;  
       case 2:  
           cout << "\t\t\tDisplay Daily Report\n";  
           cout << "\tEnter the day to be viewed: ";  
           cin>>k;  
           for(j=0;j<i;j++) <br="">             if(array[j]->dayno()==k)  
             {  
               cout<<"\n\n   Day Temperature  AmtRain AmtSnow";  
               cout<<"\n"<<"     ";  
               array[j]->daily();  
               getch();  
               break;  
             }  
           if(j==i)  
           {  
             cout<<"\nRecord not found ";  
             cout<<"\nNOT AVAILABLE";  
             getch();  
           }  
           break;  
       case 3:  
           clrscr();  
           cout<<"\n\t\tWEATHER REPORT";  
           if(i==0)  
           {  
             cout<<"\n\nRecord not found...";  
             break;  
           }  
           else  
             cout<<"\n\n   Day Temperature  AmtRain AmtSnow";  
             cout<<"\n"<<"     ";  
           for(j=0;j<i;j++) <br="">           {  
             cout<<"\n"<<"     ";  
             array[j]->daily();  
           }  
           getch();  
           break;  
           break;  
       case 4:  
           cout<<"\nENTER THE DATE WHICH U WANT TO DELETE:";  
           int dom;  
           cin>>dom;  
           for(j=0;j<i;j++) <br="">           {  
               if(array[j]->dayno()==dom)  
               {  
                 delete array[j];  
                 while(j<i) <br="">                 {  
                   array[j]=array[j+1];  
                   j++;  
                 }  
                 j--;  
                 break;  
               }  
             }  
             if(j==i)  
               cout<<"\nDATE IS NOT FOUND";  
             else  
               {  
                 array[i]->count--;  
                 i--;  
               }  
               break;  
       case 5 :  
           break ;  
       default:  
           cout<< " \t\tWrong choice...Enter again\n ";  
     }  
   }while(ch!=5);  
 }

 

Other Projects to Try:

  1. Friend Function Implementation using C++
  2. Matrix Operations in C Language
  3. Operator Overloading on String Functions C++ Language
  4. Exception Handling in C++ Language
  5. Bressenham and DDA Line Drawing algorithms

Filed Under: Computer Graphics Tagged With: Computer Graphics

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