www.pudn.com > ROTATE0.rar > ROTATE0.C
#include
#include
#include
#include
#include
#include
#include
#define UP 72
#define DOWN 80
#define LEFT 75
#define RIGHT 77
#define ENTER 28
#define ESC 1
double modelx[8]={-0.5,-0.5, -0.5, -0.5, 0.5, 0.5, 0.5, 0.5};
double modely[8]={-0.5,-0.5, 0.5, 0.5, -0.5,-0.5, 0.5, 0.5};
double modelz[8]={-0.5, 0.5, -0.5, 0.5, -0.5, 0.5, -0.5, 0.5};
double modelx1[8],modely1[8],modelz1[8];
double workx[8];
double worky[8];
double workz[8];
double mapx[8];
double mapy[8];
double mapz[8];
double mapd[8];
double f[4][4];
double xmax,ymax;
int call;
int visual[12];
int zuobiao;
void transfer(int flag)
{
int i;
for(i=0;i<8;i++){
mapx[i]=workx[i]*f[0][0]+worky[i]*f[1][0]+workz[i]*f[2][0]+1.0*f[3][0];
mapy[i]=workx[i]*f[0][1]+worky[i]*f[1][1]+workz[i]*f[2][1]+1.0*f[3][1];
mapz[i]=workx[i]*f[0][2]+worky[i]*f[1][2]+workz[i]*f[2][2]+1.0*f[3][2];
mapd[i]=workx[i]*f[0][3]+worky[i]*f[1][3]+workz[i]*f[2][3]+1.0*f[3][3];
}
for(i=0;i<8;i++){
mapx[i]=mapx[i]/mapd[i];
mapy[i]=mapy[i]/mapd[i];
mapz[i]=mapz[i]/mapd[i];
}
if(flag==1)
for(i=0;i<8;i++){
workx[i]=mapx[i];
worky[i]=mapy[i];
workz[i]=mapz[i];
}
}
void cuoqie(double cx,double cy,double cz)
{
f[0][0]=1.0; f[0][1]=cy; f[0][2]=cz; f[0][3]=0.0;
f[1][0]=cx; f[1][1]=1.0;f[1][2]=0.0; f[1][3]=0.0;
f[2][0]=0.0; f[2][1]=0.0;f[2][2]=1.0; f[2][3]=0.0;
f[3][0]=0.0; f[3][1]=0.0;f[3][2]=0.0; f[3][3]=1.0;
transfer(1);
}
void portion(double px,double py,double pz)
{f[0][0]=px; f[0][1]=0.0;f[0][2]=0.0; f[0][3]=0.0;
f[1][0]=0.0; f[1][1]=py;f[1][2]=0.0; f[1][3]=0.0;
f[2][0]=0.0; f[2][1]=0.0;f[2][2]=pz; f[2][3]=0.0;
f[3][0]=0.0; f[3][1]=0.0;f[3][2]=0.0; f[3][3]=1;
transfer(1);
}
void zrotate(double alpha)
{
double th=alpha*3.141592/180.0;
f[0][0]=cos(th); f[0][1]=sin(th);f[0][2]=0.0; f[0][3]=0.0;
f[1][0]=-sin(th); f[1][1]=cos(th);f[1][2]=0.0; f[1][3]=0.0;
f[2][0]=0.0; f[2][1]=0;f[2][2]=1; f[2][3]=0.0;
f[3][0]=0.0; f[3][1]=0.0;f[3][2]=0.0; f[3][3]=1;
transfer(1);
}
void yrotate(double alpha)
{
double th=alpha*3.141592/180.0;
f[0][0]=cos(th); f[0][1]=0.0;f[0][2]=-sin(th); f[0][3]=0.0;
f[1][0]=0.0; f[1][1]=1;f[1][2]=0; f[1][3]=0.0;
f[2][0]=sin(th); f[2][1]=0;f[2][2]=cos(th); f[2][3]=0.0;
f[3][0]=0.0; f[3][1]=0.0;f[3][2]=0.0; f[3][3]=1;
transfer(1);
}
int scx(double xj)
{
int x;
x=(int)(-xj+xmax/2);
return(x);
}
int scy(double yj)
{
int y;
y=ymax-(int)(yj+ymax/2);
return(y);
}
int isvisible(int pos1,int pos2,int pos3,double viewer[])
{
double p1,p2,p3,q1,q2,q3,n1,n2,n3,result;
p1=mapx[pos2]-mapx[pos1];
p2=mapy[pos2]-mapy[pos1];
p3=mapz[pos2]-mapz[pos1];
q1=mapx[pos3]-mapx[pos1];
q2=mapy[pos3]-mapy[pos1];
q3=mapz[pos3]-mapz[pos1];
n1=p2*q3-q2*p3;
n2=p3*q1-q3*p1;
n3=p1*q2-q1*p2;
result=viewer[0]*n1+viewer[1]*n2+viewer[2]*n3;
if(result>0) return 1;
else return 0;
}
void xiaoyin(double viewer[])
{ int i;
for(i=0;i<12;i++)
visual[i]=0;
if(isvisible(2,3,1,viewer)==1) {visual[0]=1;visual[1]=1;
visual[8]=1; visual[6]=1;}
if(isvisible(4,5,7,viewer)==1) {visual[10]=1;visual[4]=1;
visual[11]=1;visual[5]=1;}
if(isvisible(0,1,5,viewer)==1) {visual[0]=1;visual[2]=1;
visual[10]=1;visual[7]=1;}
if(isvisible(6,7,3,viewer)==1) {visual[8]=1;visual[9]=1;
visual[5]=1;visual[3]=1;}
if(isvisible(5,1,3,viewer)==1) {visual[6]=1;visual[7]=1;
visual[9]=1;visual[11]=1;}
if(isvisible(6,2,0,viewer)==1) {visual[1]=1;visual[2]=1;
visual[4]=1;visual[3]=1;}
}
void draw(int color)
{ setcolor(color);
if(visual[0]==1) line(scx(mapx[0]),scy(mapz[0]),scx(mapx[1]),scy(mapz[1]));
if(visual[1]==1) line(scx(mapx[0]),scy(mapz[0]),scx(mapx[2]),scy(mapz[2]));
if(visual[2]==1) line(scx(mapx[0]),scy(mapz[0]),scx(mapx[4]),scy(mapz[4]));
if(visual[3]==1) line(scx(mapx[6]),scy(mapz[6]),scx(mapx[2]),scy(mapz[2]));
if(visual[4]==1) line(scx(mapx[6]),scy(mapz[6]),scx(mapx[4]),scy(mapz[4]));
if(visual[5]==1) line(scx(mapx[6]),scy(mapz[6]),scx(mapx[7]),scy(mapz[7]));
if(visual[6]==1) line(scx(mapx[1]),scy(mapz[1]),scx(mapx[3]),scy(mapz[3]));
if(visual[7]==1) line(scx(mapx[1]),scy(mapz[1]),scx(mapx[5]),scy(mapz[5]));
if(visual[8]==1) line(scx(mapx[2]),scy(mapz[2]),scx(mapx[3]),scy(mapz[3]));
if(visual[9]==1) line(scx(mapx[3]),scy(mapz[3]),scx(mapx[7]),scy(mapz[7]));
if(visual[10]==1) line(scx(mapx[4]),scy(mapz[4]),scx(mapx[5]),scy(mapz[5]));
if(visual[11]==1) line(scx(mapx[5]),scy(mapz[5]),scx(mapx[7]),scy(mapz[7]));
}
void model()
{ int i;
for(i=0;i<8;i++){
workx[i]=modelx[i];
worky[i]=modely[i];
workz[i]=modelz[i];
}
}
void teq(int color,double size)
{
double viewer[3];
viewer[0]=size*cos(35.25*3.14159/180);
viewer[1]=size*sin(35.25*3.14159/180);
viewer[2]=size;
portion(size,size,size);
f[0][0]=0.707; f[0][1]=0.0;f[0][2]=-0.408; f[0][3]=0.0;
f[1][0]=-0.707;f[1][1]=0.0;f[1][2]=-0.408; f[1][3]=0.0;
f[2][0]=0.0; f[2][1]=0.0;f[2][2]=0.816; f[2][3]=0.0;
f[3][0]=0.0; f[3][1]=0.0;f[3][2]=0.0; f[3][3]=1.0;
transfer(0);
xiaoyin(viewer);
draw(color);
}
void xie(int color,double size)
{
double viewer[3];
viewer[0]=viewer[1]=viewer[2]=size;
portion(size,size,size);
f[0][0]=1; f[0][1]=0.0;f[0][2]=0.0; f[0][3]=0.0;
f[1][0]=0.707;f[1][1]=0.0;f[1][2]=-0.707; f[1][3]=0.0;
f[2][0]=0.0; f[2][1]=0.0;f[2][2]=1.0; f[2][3]=0.0;
f[3][0]=0.0; f[3][1]=0.0;f[3][2]=0.0; f[3][3]=1.0;
transfer(0);
xiaoyin(viewer);
draw(color);
}
void toushi(int color,double size)
{
double viewer[3];
viewer[0]=1*size;
viewer[1]=-2*size;
viewer[2]=-1.5*size;
f[0][0]=1; f[0][1]=0.0;f[0][2]=0.0; f[0][3]=0.0;
f[1][0]=0.0;f[1][1]=0.0;f[1][2]=0.0; f[1][3]=-0.50;
f[2][0]=0.0; f[2][1]=0.0;f[2][2]=1; f[2][3]=0.0;
f[3][0]=1.0; f[3][1]=0.0;f[3][2]=-1.5; f[3][3]=2.0;
transfer(1);
portion(size,size,size);
xiaoyin(viewer);
draw(color);
}
void copyAndClear(int sx,int sy)
{
int i;
double minx,minz,maxx,maxz,bx,bz;
unsigned int size;
void *bitmap;
maxz=minz=scy(mapz[0]);
maxx=minx=scx(mapx[0]);
for(i=1;i<8;i++){
if(minx>scx(mapx[i])) minx=scx(mapx[i]);
if(minz>scy(mapz[i])) minz=scy(mapz[i]);
if(maxx2) col=bakcol;break;
case LEFT: if((--col)<0) col=bakcol;break;
case UP: if((--row)<0) row=bakrow;break;
case DOWN: if((++row)>2) row=bakrow;break;
case ESC: restorecrtmode();break;
}
setwritemode(1);
rectangle(bakcol*ymax/3+10,bakrow*ymax/3+10,bakcol*ymax/3+ymax/3-10,bakrow*ymax/3+ymax/3-10);
setwritemode(0);
rectangle(col*ymax/3+10,row*ymax/3+10,col*ymax/3+ymax/3-10,row*ymax/3+ymax/3-10);
}while(key!=ENTER);
setwritemode(1);
rectangle(bakcol*ymax/3+10,bakrow*ymax/3+10,bakcol*ymax/3+ymax/3-10,bakrow*ymax/3+ymax/3-10);
model();
switch(row){
case 0: break;
case 1: portion(1.8,0.5,0.8);break;
case 2: cuoqie(1.8,0.5,1.6);break;
}
call=bakcol;
for(i=0;i<8;i++)
{
modelx[i]=workx[i];
modely[i]=worky[i];
modelz[i]=workz[i];
}
rectangle(ymax+20,ymax/3*2+15,xmax-30,ymax/3*2+75);
do
{
key=getkey();
bakaxis=axis;
switch(key)
{
case UP: if((--axis)<0) axis=bakaxis;break;
case DOWN:if((++axis)>1) axis=bakaxis;break;
}
setwritemode(1);
rectangle(ymax+20,ymax/3*2+15+bakaxis*60,xmax-30,ymax/3*2+15+bakaxis*60+60);
setwritemode(0);
rectangle(ymax+20,ymax/3*2+15+axis*60,xmax-30,ymax/3*2+15+axis*60+60);
}
while(key!=ENTER);
zuobiao=bakaxis;
}
void rotate()
{
int key;
int direction=RIGHT;
int frame=12400;
int beta=0;
do
{
do
{
setbkcolor(BLACK);
cleardevice();
switch(direction)
{
case RIGHT: if(zuobiao==0) zrotate(beta); else yrotate(beta); beta-=4;beta%=360;break;
case LEFT: if(zuobiao==0) zrotate(beta);else yrotate(beta); beta+=4;beta%=360;break;
}
setlinestyle(SOLID_LINE,0,1);
switch(call)
{
case 0:toushi(YELLOW,120);break;
case 1:teq(YELLOW,80);break;
case 2:xie(YELLOW,80);break;
}
model();
delay(frame);
}while(!kbhit());
key=getkey();
switch(key)
{
case LEFT:direction=LEFT;break;
case RIGHT:direction=RIGHT;break;
case UP:frame-=600;if(frame<1000)frame=1000; break;
case DOWN:frame+=600;if(frame>12400)frame=12400; break;
}
}while(key!=ESC);
getch();
}
void main()
{
int i;
int driver=DETECT,mode;
initgraph(&driver,&mode,"");
for(i=0;i<8;i++)
{
modelx1[i]=modelx[i];
modely1[i]=modely[i];
modelz1[i]=modelz[i];
}
while(1)
{
GUI1();
select();
cleardevice();
drawbox();
rotate();
cleardevice();
for(i=0;i<8;i++)
{
modelx[i]=modelx1[i];
modely[i]=modely1[i];
modelz[i]=modelz1[i];
}
}
getch();
closegraph();
}