您所在位置：主题：[原创]用C写的一个旋转的八卦图
caijian123
[专家分：0] 发布于 2006-04-01 18:12:00
#include<graphics.h>
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
void mysector(int x,int y,int startangle,int endangle,int rx,int ry);
main()
{
int graphdriver=VGA, graphmode=VGAHI ;
int x0=320,y0=240;
int degree=0;
int size=0;
void *buffer=NULL;
int xt=0,yt=0;
struct palettetype palette;
registerbgidriver(EGAVGA_driver);/*如果编译通不过，除掉此句*/
initgraph(&graphdriver,&graphmode,"");/*引号中加入TC的目录 如c:\\tc */
cleardevice();
size=imagesize(160,80,320,320);
buffer=malloc(size);
getimage(160,80,320,320,buffer);
getpalette(&palette);
while(!kbhit())
{
putimage(160,80,buffer,COPY_PUT);
setcolor(15);
circle(x0,y0,160);
degree=(degree+10)%360;
xt=(int)80* sin( (degree+90)*(2*M_PI)/360 ) ;
yt=(int)80* cos( (degree+90)*(2*M_PI)/360 ) ;
/*-----------------------------*/
setfillstyle(1,15);
mysector(x0,y0, 0+degree,180+degree,160,160); /* semicircle_top */
setfillstyle(1,0);
mysector(x0,y0,180+degree,360+degree,160,160); /* semicircle_bottom */
/*------------------------------*/
setcolor(0);
setfillstyle(1,0);
mysector(x0+xt,y0+yt, 0+degree,180+degree,80,80); /*right semicircle */
setcolor(15);
setfillstyle(1,15);
mysector(x0-xt,y0-yt,180+degree,360+degree,80,80); /*left semicircle*/
/*-----------------------------*/
setcolor(15);
setfillstyle(1,15);
mysector(x0+xt,y0+yt,0,360,30,30); /*right small circle */
setcolor(0);
setfillstyle(1,0);
mysector(x0-xt,y0-yt,0,360,30,30); /*left small circle */
/* ------------ --------------------*/
getimage(160,80,320,320,buffer);
/* cleardevice(); */
}
getch();
closegraph();
}
/*--------------------------------------------------*/
void mysector(int x,int y,int startangle,int endangle,int rx,int ry)
{
/* if(endangle>720) endangle=endangle-360;*/
if(startangle<360 && endangle>360)
{
sector(x, y,startangle, 360,rx,ry);
sector(x, y, 0, endangle-360,rx,ry);
}
else if(startangle==360)
sector(x, y,0,endangle-360,rx,ry);
else if(startangle>360 && endangle>360)
sector(x,y,startangle-360,endangle-360,rx,ry);
else sector(x,y,startangle,endangle,rx,ry);
}
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
void mysector(int x,int y,int startangle,int endangle,int rx,int ry);
main()
{
int graphdriver=VGA, graphmode=VGAHI ;
int x0=320,y0=240;
int degree=0;
int size=0;
void *buffer=NULL;
int xt=0,yt=0;
struct palettetype palette;
registerbgidriver(EGAVGA_driver);/*如果编译通不过，除掉此句*/
initgraph(&graphdriver,&graphmode,"");/*引号中加入TC的目录 如c:\\tc */
cleardevice();
size=imagesize(160,80,320,320);
buffer=malloc(size);
getimage(160,80,320,320,buffer);
getpalette(&palette);
while(!kbhit())
{
putimage(160,80,buffer,COPY_PUT);
setcolor(15);
circle(x0,y0,160);
degree=(degree+10)%360;
xt=(int)80* sin( (degree+90)*(2*M_PI)/360 ) ;
yt=(int)80* cos( (degree+90)*(2*M_PI)/360 ) ;
/*-----------------------------*/
setfillstyle(1,15);
mysector(x0,y0, 0+degree,180+degree,160,160); /* semicircle_top */
setfillstyle(1,0);
mysector(x0,y0,180+degree,360+degree,160,160); /* semicircle_bottom */
/*------------------------------*/
setcolor(0);
setfillstyle(1,0);
mysector(x0+xt,y0+yt, 0+degree,180+degree,80,80); /*right semicircle */
setcolor(15);
setfillstyle(1,15);
mysector(x0-xt,y0-yt,180+degree,360+degree,80,80); /*left semicircle*/
/*-----------------------------*/
setcolor(15);
setfillstyle(1,15);
mysector(x0+xt,y0+yt,0,360,30,30); /*right small circle */
setcolor(0);
setfillstyle(1,0);
mysector(x0-xt,y0-yt,0,360,30,30); /*left small circle */
/* ------------ --------------------*/
getimage(160,80,320,320,buffer);
/* cleardevice(); */
}
getch();
closegraph();
}
/*--------------------------------------------------*/
void mysector(int x,int y,int startangle,int endangle,int rx,int ry)
{
/* if(endangle>720) endangle=endangle-360;*/
if(startangle<360 && endangle>360)
{
sector(x, y,startangle, 360,rx,ry);
sector(x, y, 0, endangle-360,rx,ry);
}
else if(startangle==360)
sector(x, y,0,endangle-360,rx,ry);
else if(startangle>360 && endangle>360)
sector(x,y,startangle-360,endangle-360,rx,ry);
else sector(x,y,startangle,endangle,rx,ry);
}
