int main(void) {
int largura, altura, i;
float Cpz, Tz, rxmin, rxmax, rymin, rymax;
struct ponto3D * P[9], * PR[9], * PP[9], * PPN[9];
struct ponto2D * PD[9], pontos[9];
for (i=1;i<=8;++i)
P[i] = (struct ponto3D *) malloc(sizeof(struct ponto3D));
Cpz = -50.0;
Tz = 100.0;
P[1]->x = 50.0; P[1]->y = -30.0; P[1]->z = 15.0;
P[2]->x = 50.0; P[2]->y = -30.0; P[2]->z = -15.0;
P[3]->x = 50.0; P[3]->y = 30.0; P[3]->z = 15.0;
P[4]->x = 50.0; P[4]->y = 30.0; P[4]->z = -15.0;
P[5]->x = -50.0; P[5]->y = -30.0; P[5]->z = 15.0;
P[6]->x = -50.0; P[6]->y = -30.0; P[6]->z = -15.0;
P[7]->x = -50.0; P[7]->y = 30.0; P[7]->z = 15.0;
P[8]->x = -50.0; P[8]->y = 30.0; P[8]->z = -15.0;
for (i=1;i<=8;++i)
PP[i] = Projeta(Cpz, Tz, P[i]);
rxmin = -250.0; rxmax = 250.0; rymin = -250.0; rymax = 250.0;
for (i=1;i<=8;++i)
PPN[i] = Sru2srn(rxmin, rxmax, rymin, rymax, PP[i]);
largura = (int) 2*rxmax;
altura = (int) 2*rymax;
for (i=1;i<=8;++i)
PD[i] = Srn2srd(largura, altura, PPN[i]);
for (i=1;i<=8;++i)
pontos[i] = *PD[i];
for (i=1;i<=8;++i)
printf("Ponto %d = %d %d \n",i, pontos[i].x,pontos[i].y);
Visualiza(largura, altura, pontos);
return 0;
}
int main(){
//Pontos iniciais
Ponto P1, P2, P3, P4, P5, P6, P7, P8;
float se, co, tz, cpz;
//Pontos rotacionados
Ponto *rP1, *rP2, *rP3, *rP4, *rP5, *rP6, *rP7, *rP8;
//Pontos Projetados perspectivamente
Ponto *iP1, *iP2, *iP3, *iP4, *iP5, *iP6, *iP7, *iP8;
//Declaração da matriz de rotação
struct matriz4x4 mRotaciona;
int RXmin,RXmax,RYmin,RYmax,a,b;
Window win;
Display *display;
int width = 256, height = 256, x = 0, y = 0, i, tx, ty,ref,rot;
GC gc;
unsigned long valuemask = 0;
XGCValues values;
XColor cor;
P1.x = 30; P1.y = -10; P1.z = 10; P1.W = 1;
P2.x = 30; P2.y = -10; P2.z = -10; P2.W = 1;
P3.x = 30; P3.y = 10; P3.z = 10; P3.W = 1;
P4.x = 30; P4.y = 10; P4.z = -10; P4.W = 1;
P5.x = -30; P5.y = -10; P5.z = 10; P5.W = 1;
P6.x = -30; P6.y = -10; P6.z = -10; P6.W = 1;
P7.x = -30; P7.y = 10; P7.z = 10; P7.W = 1;
P8.x = -30; P8.y = 10; P8.z = -10; P8.W = 1;
//Variaveis para calculo do seno e cosseno do angulo de rotacao
se = sin(90*PI/180);
co = cos(90*PI/180);
//Inicializacao da matriz de Rotacao em relacao ao eixo z
mRotaciona.a11 = co; mRotaciona.a12 = -se; mRotaciona.a13 = 0; mRotaciona.a14 = 0;
mRotaciona.a21 = se; mRotaciona.a22 = co; mRotaciona.a23 = 0; mRotaciona.a24 = 0;
mRotaciona.a31 = 0; mRotaciona.a32 = 0; mRotaciona.a33 = 1; mRotaciona.a34 = 0;
mRotaciona.a41 = 0; mRotaciona.a42 = 0; mRotaciona.a43 = 0; mRotaciona.a44 = 1;
//************************************** (a) **********************************************
//Estou utilizando a regra da mão direita
//Chamada da funcao que rotaciona o ponto
rP1 = rotaciona(&mRotaciona, &P1);
rP2 = rotaciona(&mRotaciona, &P2);
rP3 = rotaciona(&mRotaciona, &P3);
rP4 = rotaciona(&mRotaciona, &P4);
rP5 = rotaciona(&mRotaciona, &P5);
rP6 = rotaciona(&mRotaciona, &P6);
rP7 = rotaciona(&mRotaciona, &P7);
rP8 = rotaciona(&mRotaciona, &P8);
//************************************** (b) **********************************************
//Projeção Perspectiva
printf("\n\nDigite o valor Tz: \n");
scanf("%f",&tz);
printf("\nDigite o valor Cpz: \n");
scanf("%f",&cpz);
iP1 = Projeta(tz, cpz, rP1);
iP2 = Projeta(tz, cpz, rP2);
iP3 = Projeta(tz, cpz, rP3);
iP4 = Projeta(tz, cpz, rP4);
iP5 = Projeta(tz, cpz, rP5);
iP6 = Projeta(tz, cpz, rP6);
iP7 = Projeta(tz, cpz, rP7);
iP8 = Projeta(tz, cpz, rP8);
//************************************** (c) **********************************************
//Entrada dos valores do retangulo de visualizacao
printf("\n\nDigite o valor do RXmin: \n");
scanf("%f",&RXmin);
printf("\nDigite o valor RXmax: \n");
scanf("%f",&RXmax);
printf("\n\nDigite o valor do RYmin: \n");
scanf("%f",&RYmin);
printf("\nDigite o valor RYmax: \n");
scanf("%f",&RYmax);
//width = modulo(RXmin) + modulo(RXmax);
//height = modulo(RYmin) + modulo(RYmax);
win = XCreateSimpleWindow(display, RootWindow(display, DefaultScreen(display)), x, y, width, height, 4, BlackPixel(display, DefaultScreen(display)), WhitePixel(display, DefaultScreen(display)));
XMapWindow(display, win);
gc = XCreateGC(display, win, valuemask, &values);
XSync(display, False);
XSetForeground(display, gc, WhitePixel(display, DefaultScreen(display)));
XSetBackground(display, gc, BlackPixel(display, DefaultScreen(display)));
XAllocNamedColor(display, XDefaultColormap(display, DefaultScreen(display)),"black", &cor, &cor);
XSetForeground(display, gc, cor.pixel);
//Desenhando os pontos
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
a = iP2->x;
b = iP2->y;
XDrawPoint(display, win, gc, a, b);
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
a = iP1->x;
b = iP1->y;
XDrawPoint(display, win, gc, a, b);
//Desenhando as 12 retas
reta(&win, &gc, display,iP1->x,iP2->x,iP1->y,iP2->y);
reta(&win, &gc, display,iP2->x,iP4->x,iP2->y,iP4->y);
reta(&win, &gc, display,iP4->x,iP3->x,iP4->y,iP3->y);
reta(&win, &gc, display,iP3->x,iP1->x,iP3->y,iP1->y);
reta(&win, &gc, display,iP1->x,iP5->x,iP1->y,iP5->y);
reta(&win, &gc, display,iP2->x,iP6->x,iP2->y,iP6->y);
reta(&win, &gc, display,iP3->x,iP7->x,iP3->y,iP7->y);
reta(&win, &gc, display,iP4->x,iP8->x,iP4->y,iP8->y);
reta(&win, &gc, display,iP5->x,iP6->x,iP5->y,iP6->y);
reta(&win, &gc, display,iP6->x,iP8->x,iP6->y,iP8->y);
reta(&win, &gc, display,iP8->x,iP7->x,iP8->y,iP7->y);
reta(&win, &gc, display,iP7->x,iP5->x,iP7->y,iP5->y);
XFlush(display);
sleep(30);
XFreeGC(display, gc);
XCloseDisplay(display);
return 0;
}
