hey everyone ,m trying to do a program that displays the Olympic symbols using bresenham's algorithm but i keep getting declaration syntax error in main,pls help i can't see any problem with it Code: #include<iostream.h> #include<graphics.h> #include<conio.h> #include<math.h> #include<stdlib.h> #include<stdio.h> void circlePlotPoints(int xc,int yc,int x,int y) int main() { int gd=DETECT,gm; initgraph(&gd,&gm,""); clrscr(); setbkcolor(WHITE); setcolor(CYAN); drawCircle(100,100,35); setcolor(BLUE); drawCircle(175,100,35); setcolor(RED); drawCircle(250,100,35); setcolor(YELLOW); drawCircle(140,150,35); setcolor(GREEN); drawCircle(210,150,35); void circlePlotPoints(int xc,int yc,int x,int y) { putpixel(xc+x,yc+y,1); putpixel(xc-x,yc+y,1); putpixel(xc+x,yc-y,1); putpixel(xc-x,yc-y,1); putpixel(xc+y,yc+x,1); putpixel(xc-y,yc+x,1); putpixel(xc+y,yc+x,1); putpixel(xc-y,yc-x,1); putpixel(xc+y,yc-x,1); } void drawCircle (int xc,int yc,int radius) { int x=0; int y=radius; int p=1-radius; circlePlotPoints(xc,yc,x,y); while(x<=y) { x++; if(p<0) p=p+2*x+1; else { y--; p =p+2*(x-y)+1; } circlePlotPoints(xc,yc,x,y); } getch(); } return 0; }
sorry modified code is this Code: #include<iostream.h> #include<graphics.h> #include<conio.h> #include<math.h> #include<stdlib.h> #include<stdio.h> void circlePlotPoints(int xc,int yc,int x,int y) int main() { int gd=DETECT,gm; initgraph(&gd,&gm,""); clrscr(); setbkcolor(WHITE); setcolor(CYAN); drawCircle(100,100,35); setcolor(BLUE); drawCircle(175,100,35); setcolor(RED); drawCircle(250,100,35); setcolor(YELLOW); drawCircle(140,150,35); setcolor(GREEN); drawCircle(210,150,35); void circlePlotPoints(int xc,int yc,int x,int y) { putpixel(xc+x,yc+y,1); putpixel(xc-x,yc+y,1); putpixel(xc+x,yc-y,1); putpixel(xc-x,yc-y,1); putpixel(xc+y,yc+x,1); putpixel(xc-y,yc+x,1); putpixel(xc+y,yc+x,1); putpixel(xc-y,yc-x,1); putpixel(xc+y,yc-x,1); } void drawCircle (int xc,int yc,int radius) { int x=0; int y=radius; int p=1-radius; circlePlotPoints(xc,yc,x,y); while(x<=y) { x++; if(p<0) p=p+2*x+1; else { y--; p =p+2*(x-y)+1; } circlePlotPoints(xc,yc,x,y); } getch(); } return 0; }
Code: #include<iostream.h> #include<graphics.h> #include<conio.h> #include<math.h> #include<stdlib.h> #include<stdio.h> void circlePlotPoints(int xc,int yc,int x,int y) { putpixel(xc+x,yc+y,1); putpixel(xc-x,yc+y,1); putpixel(xc+x,yc-y,1); putpixel(xc-x,yc-y,1); putpixel(xc+y,yc+x,1); putpixel(xc-y,yc+x,1); putpixel(xc+y,yc+x,1); putpixel(xc-y,yc-x,1); putpixel(xc+y,yc-x,1); } void drawCircle (int xc,int yc,int radius) { int x=0; int y=radius; int p=1-radius; circlePlotPoints(xc,yc,x,y); while(x<=y) { x++; if(p<0) p=p+2*x+1; else { y--; p =p+2*(x-y)+1; } circlePlotPoints(xc,yc,x,y); } int main() {// get the error here int gd=DETECT,gm; initgraph(&gd,&gm,""); clrscr(); setbkcolor(WHITE); setcolor(CYAN); drawCircle(100,100,35); setcolor(BLUE); drawCircle(175,100,35); setcolor(RED); drawCircle(250,100,35); setcolor(YELLOW); drawCircle(140,150,35); setcolor(GREEN); drawCircle(210,150,35); getch(); } return 0; }
