def update(self):
"""
called on every frame
apply transformation matrix and project every polygon to 2d
for color avg_z function is used
polygons are sorted on avg_z value
finally painting on surface is called
"""
# Clock vector
vector = Matrix3D.get_rot_z_matrix(self.angle).v_dot(self.vector)
# projected = self.__project(self.vector, self.center)
projected = self.__projectm(vector, self.center)
pygame.draw.polygon(self.surface, pygame.Color(255,255,255,0), (self.center, projected), 1)
# Cube
mesh = self.model.transform(Matrix3D.get_rot_z_matrix(self.angle))
#mesh = mesh.transform(Matrix3D.get_rot_x_matrix(self.angle))
mesh = mesh.transform(Matrix3D.get_scale_matrix(SCALE, SCALE, SCALE))
mesh = mesh.transform(Matrix3D.get_shift_matrix(X_SHIFT, Y_SHIFT, Z_SHIFT))
for face in mesh:
vertices = [self.__projectm(vertice, self.center) for vertice in face]
pygame.draw.polygon(self.surface, pygame.Color(255,255,255,0), vertices, 1)
self.angle += self.angle_step
# axis vectors
pygame.draw.polygon(self.surface, pygame.Color(255,0,0,0), (self.center, self.__projectm(self.x_axis, self.center)), 1)
pygame.draw.polygon(self.surface, pygame.Color(0,255,0,0), (self.center, self.__projectm(self.y_axis, self.center)), 1)
pygame.draw.polygon(self.surface, pygame.Color(0,0,255,0), (self.center, self.__projectm(self.z_axis, self.center)), 1)
def test_m_transforms(self):
v = Vector3D(1, 1, 0, 1)
m = Matrix3D.get_shift_matrix(5, 5, 0)
print "shift matrix:\n", m
print "shifted vector:", m.v_dot(v)
m = Matrix3D.get_scale_matrix(2, 2, 0)
print "scale matrix:\n", m
print "scaled vector:", m.v_dot(v)
def test_m_transforms(self):
v = Vector3D(1, 1, 0, 1)
m = Matrix3D.get_shift_matrix(5, 5, 0)
print "shift matrix:\n", m
print "shifted vector:", m.v_dot(v)
m = Matrix3D.get_scale_matrix(2, 2, 0)
print "scale matrix:\n", m
print "scaled vector:", m.v_dot(v)
def update(self):
"""
called on every frame
apply transformation matrix and project every polygon to 2d
for color avg_z function is used
polygons are sorted on avg_z value
finally painting on surface is called
"""
# Clock vector
vector = Matrix3D.get_rot_z_matrix(self.angle).v_dot(self.vector)
# projected = self.__project(self.vector, self.center)
projected = self.__projectm(vector, self.center)
pygame.draw.polygon(self.surface, pygame.Color(255, 255, 255, 0),
(self.center, projected), 1)
# Cube
mesh = self.model.transform(Matrix3D.get_rot_z_matrix(self.angle))
#mesh = mesh.transform(Matrix3D.get_rot_x_matrix(self.angle))
mesh = mesh.transform(Matrix3D.get_scale_matrix(SCALE, SCALE, SCALE))
mesh = mesh.transform(
Matrix3D.get_shift_matrix(X_SHIFT, Y_SHIFT, Z_SHIFT))
for face in mesh:
vertices = [
self.__projectm(vertice, self.center) for vertice in face
]
pygame.draw.polygon(self.surface, pygame.Color(255, 255, 255, 0),
vertices, 1)
self.angle += self.angle_step
# axis vectors
pygame.draw.polygon(
self.surface, pygame.Color(255, 0, 0, 0),
(self.center, self.__projectm(self.x_axis, self.center)), 1)
pygame.draw.polygon(
self.surface, pygame.Color(0, 255, 0, 0),
(self.center, self.__projectm(self.y_axis, self.center)), 1)
pygame.draw.polygon(
self.surface, pygame.Color(0, 0, 255, 0),
(self.center, self.__projectm(self.z_axis, self.center)), 1)
