圖象一些算法

#include <graphics.h> #include <stdlib.h> #include <stdio.h> #include <conio.h>

int main(void) {  /* request auto detection */  int gdriver = DETECT, gmode, errorcode;  int midx, midy, i;

/* initialize graphics and local variables */  initgraph(&gdriver, &gmode, "");

/* read result of initialization */  errorcode = graphresult(); if (errorcode != grOk)   /* an error occurred */  { printf("Graphics error: %s/n", grapherrormsg(errorcode));  printf("Press any key to halt:"); getch(); exit(1); /* terminate with an error code */ }

midx = getmaxx() / 2; midy = getmaxy() / 2;

/* loop through the fill patterns */ for (i=SOLID_FILL; i<USER_FILL; i++) { /* set the fill style */  setfillstyle(i, getmaxcolor());

/* draw the bar */  bar(midx-50, midy-50, midx+50, midy+50);

getch(); }

/* clean up */ closegraph();  return 0; }