def cylinder(self,
position1,
position2,
radius=1.0,
material=None,
name=None):
if material is not None:
color = self.materials[material]
glColor3f(color[0], color[1], color[2])
z = Vector(0.0, 0.0, 1.0)
d = position2 - position1
if d.length() < 1e-10:
return
d = d.normal()
axis = z.cross(d)
glPushMatrix()
glTranslatef(position1[0], position1[1], position1[2])
if axis.length() > 0.0000001:
axis = axis.normal()
glRotatef(acos(z * d) * 180 / pi, axis[0], axis[1], axis[2])
else:
if d[2] < 0:
glRotatef(180, 1, 0, 0)
gluCylinder(self.quadratic, radius, radius,
(position2 - position1).length(), self.n, 2)
glPopMatrix()
def orthographicCamera(self, position, look_at, right, up, name=None):
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
glOrtho(-right.length(), right.length(), -up.length(), up.length(),
-100, 100)
z = Vector(0.0, 0.0, 1.0)
d = (look_at - position).normal()
axis = z.cross(d)
if axis.length() > 0.0000001:
axis = axis.normal()
glRotatef(z * d, axis[0], axis[1], axis[2])
glTranslatef(-position[0], -position[1], -position[2])
glMatrixMode(GL_MODELVIEW)
