工程下載

http://pan.baidu.com/s/1o7OEMc6

tcddd.rar

此處為在Windows下運(yùn)行的TC圖形程序；使用了EasyX庫；

EasyX庫可參考：

http://blog.csdn.net/bcbobo21cn/article/details/51207782

http://www.easyx.cn

代碼參考

http://blog.sina.com.cn/s/articlelist_1287275024_9_1.html

一?三維透視投影變換算法

#include <math.h> #include <graphics.h> #include <conio.h> #include <stdio.h>void draw(float z[][4],float xt0,float yt0,float ts0); void matrix(float t[][4]);#define N 22float p[N][4]={{45,30,0,1},{27,30,0,1},{27,30,10,1},{18,30,10,1},{18,30,0,1},{0,30,0,1},{0,30,15,1},{45,30,15,1},{45,30,0,1},{45,0,0,1},{45,0,15,1},{45,15,27,1},{0,15,27,1},{0,30,15,1},{45,30,15,1},{45,15,27,1},{45,10,15,1},{45,10,5,1},{45,20,5,1},{45,20,15,1},{0,0,15,1},{0,0,0,1}}; int tp[]={-1,0,1,2,3,4,5,6,7,0,-1,0,7,11,10,9,0,-1,16,17,18,19,16, -1,9,10,20,21,9,-1,10,11,12,20,10,-1,6,7,11,12,6,-1,5,6,12,20,21,5,-100}; main() {static float tx[4][4];float b1,b2,h,e,a,l,m,n,k,d,q;int i;initgraph(640, 480);//int driver,mode;//driver=DETECT;//initgraph(&driver,&mode,"");//settextstyle(3,0,_T("宋體"));settextstyle(16, 0, _T("宋體"));setcolor(GREEN);outtextxy(20,20,"3D perspective drawing matrix convert");for(i=1;i<6;i++)printf("\n");//printf("input==>ab,bc,H,θ,α: "); /*θ、α輸入法提示：Alt+233,Alt+224 *///scanf("%f,%f,%f,%f,%f",&b1,&b2,&h,&e,&a);b1=15;b2=10;h=15;e=233;a=224;e=e*3.14159/180.0;a=a*3.14159/180.0;l=-1*(b2*cos(e)-b1*sin(e))/2;m=-(b2*sin(e)+b1*cos(e));n=-2*h/3;k=b1*sin(e)+b2*cos(e)-b1*cos(e)*tan(a/2)-b2*sin(e)*tan(a/2);d=k/(2*tan(a/2));q=-1/d;tx[0][0]=cos(e);tx[0][3]=q*sin(e); tx[1][0]=-sin(e);tx[1][3]=q*cos(e); tx[2][2]=1; tx[3][0]=1;tx[3][2]=n;tx[3][3]=m*q+1;setcolor(YELLOW);//matrix(tx[0]);matrix(tx);getch();closegraph(); } void matrix(float t[][4]) {float z[N][4],xt0,yt0,ts0;int i,j,k;for(i=0;i<N;i++)for(j=0;j<4;j++){z[i][j]=0;for(k=0;k<4;k++)z[i][j]=z[i][j]+p[i][k]*t[k][j];}//draw(z[0],300,200,z[3][3]);draw(z,300,200,z[3][3]); } void draw(float z[][4],float xt0,float yt0,float ts0) {float x[N],y[N];int i;for(i=0;i<N;i++){x[i]=xt0-z[i][0]/z[i][3]*ts0*4;y[i]=yt0-z[i][2]/z[i][3]*ts0*4;}for(i=0;i<1000;i++){if(tp[i]==-100) break;if(tp[i]==-1){i++;moveto(x[tp[i]],y[tp[i]]);}if(tp[i]>=0)lineto(x[tp[i]],y[tp[i]]);} }

二?三視圖投影變換算法

#include <math.h> #include <graphics.h> #include <conio.h> #include <stdio.h>void draw(float z[][4],float xt0,float yt0,float ts0); void matrix(float t[][4]);#define N 25float p[N][4]={{0,0,5,1},{0,0,0,1},{40,0,0,1},{40,0,5,1},{40,25,5,1},{0,25,5,1},{0,25,0,1},{40,25,0,1},{0,25,0,1},{0,0,0,1},{35,5,5,1},{35,5,35,1},{35,10,35,1},{35,10,30,1},{35,15,30,1},{35,20,5,1},{5,20,5,1},{5,5,5,1},{5,5,35,1},{35,5,35,1},{35,10,35,1},{5,10,35,1},{5,10,30,1},{5,15,30,1},{35,15,30,1}}; int tp[]={-1,0,1,2,3,0,5,6,1,-1,3,4,5,6,7,2,-1,4,7,-1,10,11,12,13,14,15,10,-1,17,18,21,22,23,16,17,-1,10,17,-1,11,18,-1,12,21,-1,13,22,-1,14,23,-1,15,16,-100}; main() {static float tv[4][4],th[4][4],tw[4][4];//int driver,mode;//driver=DETECT;//initgraph(&driver,&mode,"");initgraph(640, 480);settextstyle(1,0,_T("宋體"));setcolor(RED);outtextxy(30,20,"3 sides view graphic matrix convert");tv[0][0]=1;tv[2][2]=1;tv[3][3]=1;th[0][0]=1;th[1][2]=-1;th[3][2]=-10;th[3][3]=1;tw[1][0]=-1;tw[2][2]=1;tw[3][0]=-10;tw[3][3]=1;setcolor(WHITE);//matrix(tv[0]);//matrix(th[0]);//matrix(tw[0]);matrix(tv);matrix(th);matrix(tw);getch();closegraph(); } void matrix(float t[][4]) {float z[N][4],xt0,yt0,ts0;int i,j,k;for(i=0;i<N;i++)for(j=0;j<4;j++){z[i][j]=0;for(k=0;k<4;k++)z[i][j]=z[i][j]+p[i][k]*t[k][j];}//draw(z[0],310,270,4);draw(z,310,270,4); } void draw(float z[][4],float xt0,float yt0,float ts0) {float x[N],y[N];int i;for(i=0;i<N;i++){x[i]=xt0-z[i][0]*ts0;y[i]=yt0-z[i][2]*ts0;}for(i=0;i<1000;i++){if(tp[i]==-100) break;if(tp[i]==-1){i++;moveto(x[tp[i]],y[tp[i]]);}if(tp[i]>=0)lineto(x[tp[i]],y[tp[i]]);} }

三?三維正軸測投影變換算法

#include <math.h> #include <graphics.h> #include <conio.h> #include <stdio.h>void draw(float z[][4],float xt0,float yt0,float ts0); void matrix(float t[][4]);#define N 18 float p[N][4]={{0,0,0,1},{0,40,0,1},{45,40,0,1},{45,0,0,1},{45,0,8,1},{45,40,8,1},{8,40,8,1},{8,0,8,1},{8,0,28,1},{8,40,28,1},{0,40,28,1},{0,0,28,1},{40,24,8,1},{8,24,8,1},{8,24,24,1},{8,16,24,1},{8,16,8,1},{40,16,8,1}}; int tp []={-1,0,1,2,3,0,5,6,1,-1,3,4,5,6,7,2,-1,4,7,-1,10,11,12, 13,14,15,10,-1,17,18,21,22,23,16,17,-1,10,17,-1,11,18,-1, 12,21,-1,13,22,-1,14,23,-1,15,16,-100};main() {static float tx[4][4];float beta,cita;//int driver,mode;//driver=DETECT;//initgraph(&driver,&mode,"");initgraph(640, 480);//settextstyle(1,0,_T("宋體"));settextstyle(16, 0, _T("宋體"));setcolor(BROWN);outtextxy(140,20,"3D graphic matrix convert");//printf("input==>β, θ: "); /*β和θ的輸入法分別為：Alt+225, Alt +233*///scanf("%f,%f",&beta,&cita);beta=225;cita=233;beta=beta*3.14159/180.0;cita=cita*3.14159/180.0;tx[0][0]=cos(beta);tx[0][2]=-sin(beta)*sin(cita); tx[1][0]=-sin(beta);tx[1][2]=-cos(beta)*sin(cita);tx[2][2]=cos(cita); tx[3][3]=1;setcolor(CYAN);//matrix(tx[0]);matrix(tx);getch();closegraph(); } void matrix(float t[][4]) {float z[N][4],xt0,yt0,ts0;int i,j,k;for(i=0;i<N;i++)for(j=0;j<4;j++){z[i][j]=0;for(k=0;k<4;k++)z[i][j]=z[i][j]+p[i][k]*t[k][j];}//draw(z[0],300,200,4);draw(z,300,200,4); } void draw(float z[][4],float xt0,float yt0,float ts0) {float x[N],y[N];int i;for(i=0;i<N;i++){x[i]=xt0-z[i][0]*ts0;y[i]=yt0-z[i][2]*ts0;}for(i=0;i<1000;i++){if(tp[i]==-100) break;if(tp[i]==-1){i++;moveto(x[tp[i]],y[tp[i]]);}if(tp[i]>=0)lineto(x[tp[i]],y[tp[i]]);} }

四 相關(guān)編程問題

1 二維數(shù)組做函數(shù)參數(shù)

上面三個(gè)程序使用了二維數(shù)組做函數(shù)參數(shù)；看一個(gè) 二維數(shù)組做函數(shù)參數(shù) 的例子；

#include <stdio.h>void print_array(int *array, int len){int i = 0;for ( ; i < len; i++) {printf("%d ",array[i]);}putchar('\n');}void func(int array[3][10]){print_array(array[0], 10);print_array(array[1], 10);print_array(array[2], 10);print_array(array[3], 10);print_array(array[4], 10);}int main(){int array[5][10] = {{0,1,2,3,4,5,6,7,8,9},{10,11,12,13,14,15,16,17,18,19},{20,21,22,23,24,25,26,27,28,29},{30,31,32,33,34,35,36,37,38,39},{40,41,42,43,44,45,46,47,48,49}};func(array);return 0;}

2 easyX庫對(duì)TC函數(shù)的改進(jìn)

settextstyle(1,0,4);

需要改為

settextstyle(16, 0, _T("宋體")); 以及其他改進(jìn)，參見

easyx幫助手冊(cè)和

http://www.easyx.cn/skills/View.aspx?id=89

《新程序員》：云原生和全面數(shù)字化實(shí)踐50位技術(shù)專家共同創(chuàng)作，文字、視頻、音頻交互閱讀

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