三维变换设计

1、#include#include#include#include#include#define rad 0.0174532925#define number 24floatunumber=60.,20.,20.,80.,80.,60.,60.,0.,0.,60.,80.,0.,0.,0.,0.,0.,20.,20.,0.,0.,0.,80.,0.,0.,vnumber=20.,60.,60.,0.,0.,20.,20.,20.,20.,20.,0.,0.,20.,20.,60.,60.,60.,60.,60.,60.,0.,0.,0.,0.,wnumber=30.,30.,0.,0.,90.,

2、90.,30.,30.,90.,90.,90.,90.,90.,30.,30.,0.,0.,30.,30.,0.,0.,0.,0.,90.;int ipennumber=3,2,2,2,2,2,2,2,2,2,3,2,2,3,2,2,2,3,2,3,2,2,3,2;int kindnumber=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,1;void draw(float sf,float xc,float yc,float tranm4);void axono2d(float sf,float ox,float oy,float bta,flo

3、at afa,float x,float y,float z,int kp,int kl,int mp);void plot(float x,float y,int ip,int lk);void initm(float unitm4);void mult4x4(float ma4,float mb4,float mc4);void transform(float x0,float y0,float z0,float *x,float *y,float *z,float tranm4);void translation(float l,float m,float n,float tranm4)

4、;void scaling(float sx,float sy,float sz,float tranm4);void rotationx(float xc,float yc,float zc,float alta,float tranm4);void rotationy(float xc,float yc,float zc,float beta,float tranm4);void rotationz(float xc,float yc,float zc,float gama,float tranm4);void projectx(float i,float m,float n,float

5、tranm4);void projecty(float i,float m,float n,float tranm4);void projectz(float i,float m,float n,float tranm4);void mirrxoy(float l,float m,float n,float tranm4);void mirrxoz(float l,float m,float n,float tranm4);void mirryoz(float l,float m,float n,float tranm4);void shearing(float a,float b,float

6、 c,float d,float e,float f,float tranm4);main() int j,m=number; int gd=detect,gm; float tm44=0.; initgraph(&gd,&gm,d:tc); settextstyle(3,0,2); outtextxy(170,4,3d grapfics transformation); setwritemode(1); initm(tm); for(j=1;j=15;j+) setcolor(j); translation(0.,0.,-10.*j,tm); draw(1.,300.,350.,tm); f

7、or(j=1;j=15;j+) setcolor(j); translation(-10.*j,0.,0.,tm); draw(1.,300.,350.,tm); for(j=1;j=15;j+) setcolor(j); translation(0.,10.*j,0.,tm); draw(1.,300.,250.,tm); for(j=1;j=15;j+) setcolor(j); rotationx(0.,0.,0.,24.*j,tm); draw(1.,320.,240.,tm); for(j=1;j=15;j+) setcolor(j); rotationy(0.,0.,10.,24.

8、*j,tm); draw(1.,320.,240.,tm); for(j=1;j=15;j+) setcolor(j); rotationz(0.,0.,10.,24.*j,tm); draw(1.,320.,240.,tm); for(j=1;j=15;j+) setcolor(j); scaling(0.2*j,0.2*j,0.2*j,tm); draw(1.,320.,240.,tm); setwritemode(0); axono2d(1.,320.,240.,-45.,35.2667,u,v,w,ipen,kind,number); projectx(-80.,0.,0.,tm);

9、draw(1.,320.,240.,tm); projecty(0.,-80.,0.,tm); draw(1.,320.,240.,tm); projectz(0.,0.,-80.,tm); draw(1.,320.,240.,tm); getch(); cleardevice(); axono2d(1.,320.,240.,-45.,35.2667,u,v,w,ipen,kind,number); mirrxoy(0.,0.,-60.,tm); draw(1.,320.,240.,tm); mirrxoz(0.,-60.,0.,tm); draw(1.,320.,240.,tm); mirr

10、yoz(-60.,0.,0.,tm); draw(1.,320.,240.,tm); getch(); closegraph(); void draw(float sf,float xc,float yc,float tranm4) int i,m=number; float *px,*py,*pz,xu,yv,zw; float u1number,v1number,w1number; px=&xu; py=&yv; pz=&zw; for(i=0;im;i+) transform(ui,vi,wi,px,py,pz,tranm); u1i=*px; v1i=*py; w1i=*pz; axo

11、no2d(sf,xc,yc,-45.,35.2667,u1,v1,w1,ipen,kind,m); getch(); axono2d(sf,xc,yc,-45.,35.2667,u1,v1,w1,ipen,kind,m); void axono2d(float sf,float ox,float oy,float bta,float afa,float x,float y,float z,int kp,int kl,int mp) float bf,af,ca,cb,cg,sg,xp,yp,zp; int i; bf=bta*rad; af=afa*rad; cb=cos(bf); ca=co

12、s(af); for(i=0;imp;i+) if(xi=0)xp=ox-sf*zi*cb; elsexp=ox+sf*(xi-zi*cb); if(yi=0)yp=oy+sf*zi*ca; elseyp=oy-sf*(yi-zi*ca); plot(xp,yp,kpi,kli); void plot(float x,float y,int ip,int lk) if(ip=3) moveto(int)x,(int)y); else if(lk=0) setlinestyle(userbit_line,0xffff,3); else setlinestyle(userbit_line,0xff

13、ff,3); lineto(int)x,(int)y); void initm(float unitm4) int n; for(n=0;n4;n+) unitmn0=0; unitmn1=0; unitmn2=0; unitmn3=0; unitmnn=1; void mult4x4(float ma4,float mb4,float mc4) int mi,mj,mk; for(mi=0;mi4;mi+) for(mj=0;mj4;mj+) mcmimj=0;for(mk=0;mk4;mk+)mcmimj=mcmimj+mamimk*mbmkmj; void transform(float

14、 x0,float y0,float z0,float *x,float *y,float *z,float tranm4) float xu,yv,zw,h; xu=tranm00*x0+tranm10*y0+tranm20*z0+tranm30; yv=tranm01*x0+tranm11*y0+tranm21*z0+tranm31; zw=tranm02*x0+tranm12*y0+tranm22*z0+tranm32; h=tranm03*x0+tranm13*y0+tranm23*z0+tranm33; (*x)=xu/h; (*y)=yv/h; (*z)=zw/h; void tr

15、anslation(float l,float m,float n,float tranm4) initm(tranm); tranm30=l; tranm31=m; tranm32=n; void scaling(float sx,float sy,float sz,float tranm4) initm(tranm); tranm00=sx; tranm11=sy; tranm22=sz; void rotationx(float xc,float yc,float zc,float alfa,float tranm4) initm(tranm); tranm11=cos(rad*alfa

16、); tranm12=sin(rad*alfa); tranm21=-tranm12; tranm22=tranm11; tranm31=-yc*tranm11+zc*tranm12+yc; tranm32=yc*tranm12+zc*tranm11+zc; void rotationy(float xc,float yc ,float zc,float beta,float tranm4) initm(tranm); tranm00=cos(rad*beta); tranm20=sin(rad*beta); tranm02=-tranm20; tranm22=tranm00; tranm30

17、=-xc*tranm00-zc*tranm20+xc; tranm32=xc*tranm20-zc*tranm00+zc; void rotationz(float xc,float yc,float zc,float gama,float tranm4) initm(tranm); tranm00=cos(rad*gama); tranm01=sin(rad*gama); tranm10=-tranm01; tranm11=tranm00; tranm30=-xc*tranm00+yc*tranm01+xc; tranm31=-xc*tranm01+yc*tranm00+yc; void p

18、rojectx(float l,float m,float n,float tranm4) initm(tranm); tranm00=0; tranm30=l; tranm31=m; tranm32=n; void projecty(float l,float m,float n,float tranm4) initm(tranm); tranm11=0; tranm30=l; tranm31=m; tranm32=n; void projectz(float l,float m,float n,float tranm4) initm(tranm); tranm22=0; tranm30=l; tranm31=m; tranm32=n; void mirrxoy(float l,float m,float n,float tranm4) initm(tranm); tranm22=-1; tranm30=l; tranm31=m; tranm32=n; void mirrxoz(float l,float m,float n,float tranm4) initm(tranm); tranm11=-1; tran