void draw_callback()
{
for(std::list<PLine>::iterator It = lines.begin(); It != lines.end(); It++)
{
PLine &line = *It;
drawline3d(line.x0, line.y0, line.z0, line.x1, line.y1, line.z1, line.col);
}
for(std::list<PPoint>::iterator It = points.begin(); It != points.end(); It++)
{
PPoint &point = *It;
drawpoint3d(point.x, point.y, point.z, point.col);
}
}
int main()
{
int win, i, j, k, m, key = 0;
int arp[5] = { 0, 3, 1, 4, 2 }, ars[7] = {
0, 5, 3, 1, 6, 4, 2};
double pentagon[3][5], septagon[3][7], parab[3][144], y;
win = gopen(L, L);
window(win, -L / 2, -L / 2, L / 2, L / 2);
gsetbgcolor(win, ECTRL_BGCOLOR);
newcolor(win, ECTRL_FGCOLOR);
winname(win, "e_3d demo");
layer(win, 0, 1);
gsetnonblock(ENABLE);
i = j = m = 0;
for (i = 0; i < 144; i++) {
y = L/(2*144.0)*i;
parab[0][i] = 0;
parab[1][i] = -y;
parab[2][i] = 0.02*y*(L/2 - y);
}
while (key != 'q') {
g3dsetangle(torad(40 * (1.5 + sin(j * 2 * M_PI / 30))),
i * 2 * M_PI / 144);
gclr(win);
for (k = 0; k < 5; k++) {
pentagon[0][k] =
L / 6 * cos(arp[k] * 2 * M_PI / 5 + m * 2 * M_PI / 50) + L / 5;
pentagon[1][k] =
L / 6 * sin(arp[k] * 2 * M_PI / 5 + m * 2 * M_PI / 50) + L / 5;
pentagon[2][k] = 0;
}
for (k = 0; k < 7; k++) {
septagon[0][k] =
L / 6 * cos(ars[k] * 2 * M_PI / 7 + 2 * m * 2 * M_PI / 50) -
L / 5;
septagon[1][k] = 0;
septagon[2][k] =
L / 6 * sin(ars[k] * 2 * M_PI / 7 + 2 * m * 2 * M_PI / 50) +
L / 5;
}
newcolor(win, "lightsteelblue");
newlinestyle(win, LineOnOffDash);
for(k = 0; k < 6; k++) {
drawline3d(win, -L/10*k, 0, 0, -L/10*k, -L/2, 0);
drawline3d(win, 0, -L/10*k, 0, -L/2, -L/10*k, 0);
}
newlinestyle(win, LineSolid);
newcolor(win, "red4");
fillpoly3d(win, pentagon[0], pentagon[1], pentagon[2], 5, 0);
newcolor(win, "green4");
fillpoly3d(win, septagon[0], septagon[1], septagon[2], 7, 0);
newcolor(win, ECTRL_FGCOLOR);
drawarrow3d(win, 0, 0, 0, 0, 0, L / 3, 10, 6, 12);
drawarrow3d(win, 0, 0, 0, 0, L / 3, 0, 10, 6, 12);
drawarrow3d(win, 0, 0, 0, L / 3, 0, 0, 10, 6, 12);
newcolor(win, "gold3");
drawstr3d(win, 0, 0, L/3+10, FONTSET, 0, "z¼´");
drawlines3d(win, parab[0], parab[1], parab[2], 144);
y = L/(2*36.0)*(i%36);
putimg24m3d(win, 0 - 6 *(-sin(_phi) - cos(_th)*cos(_phi)),
-y - 6*(cos(_phi) - cos(_th)*sin(_phi)),
0.02*y*(L/2 - y) -6*sin(_th), 12, 12, Xpm_image_stone6);
copylayer(win, 1, 0);
i++;
i %= 144;
j++;
j %= 30;
m++;
m %= 50;
msleep(40);
key = ggetch();
}
gcloseall();
return 0;
}
