def _generateMatrix(self):
"""
Generates a transformation matrix from internal data.
@returns A Matrix4x4 representation of the transformation component.
"""
t = self.__translation.matrix() if self.__translation else Matrix4x4.identity()
r = self.__rotation.matrix() if self.__rotation else Matrix4x4.identity()
s = self.__scale.matrix() if self.__scale else Matrix4x4.identity()
return t * r * s
def _generateMatrix(self):
"""
Generates a transformation matrix from internal data.
@returns A Matrix4x4 representation of the transformation component.
"""
t = self.__translation.matrix(
) if self.__translation else Matrix4x4.identity()
r = self.__rotation.matrix(
) if self.__rotation else Matrix4x4.identity()
s = self.__scale.matrix() if self.__scale else Matrix4x4.identity()
return t * r * s
def _generateMatrix(self):
"""
Generates a transformation matrix from internal data.
@returns A Matrix4x4 representation of the transformation component.
"""
return Matrix4x4.identity()
def _generateMatrix(self):
"""
Generates a transformation matrix from internal data.
@returns A Matrix4x4 representation of the transformation component.
"""
return Matrix4x4.identity()
def __init__(self, matrix=Matrix4x4.identity()):
"""
Constructor.
@param m The initial transformation matrix value.
"""
super(TransformationComponent, self).__init__()
self.__matrix = matrix
def __init__(self, matrix=Matrix4x4.identity()):
"""
Constructor.
@param m The initial transformation matrix value.
"""
super(TransformationComponent, self).__init__()
self.__matrix = matrix
def paint_enter(self):
"""
Implements the GLNodeAdapter's paint_enter method for an OpenGL Render operation.
"""
GL.glPushAttrib(GL.GL_ENABLE_BIT | GL.GL_DEPTH_BUFFER_BIT | GL.GL_LINE_BIT | GL.GL_CURRENT_BIT)
GL.glPushClientAttrib(GL.GL_CLIENT_VERTEX_ARRAY_BIT)
GL.glMatrixMode(GL.GL_MODELVIEW)
GL.glPushMatrix()
GL.glMultMatrixf(self._node.matrix().data())
GL.glColor(self._node.color.getRgbF())
# The positive Z-axis is the default direction for Cylinder Quadrics in OpenGL.
# If our vector is not parallel to the z-axis, e.g. (0, 0, Z), then rotate it.
# 1) Get a normal from the z-v plane
# 2) Get the angle inbetween z-v on the plane (see vector dot product)
# 3) Rotate the normal by that angle.
v = self._node.axis
m = Matrix4x4.identity()
if v.x != 0 or v.y != 0:
zaxis = Vector3D(0,0,1)
angle = zaxis.angle(v)
normal = zaxis.crossproduct(v, True)
m *= Matrix4x4.rotation(angle, normal)
# The positive Z-axis is the default direction fo Cylinder Quadrics in OpenGL.
# If our z is negative, we need to flip the cylinder
if v.z < 0:
yaxis = Vector3D(1,0,0)
m *= Matrix4x4.rotation(math.radians(180), yaxis)
GL.glMultMatrixf(m.data())
q = self.__quadric
r = self._node.radius
h = self._node.length
sl = self._node.slices
st = self._node.stacks
lp = self._node.loops
GLU.gluQuadricDrawStyle (q, GLU.GLU_FILL)
GLU.gluQuadricNormals (q, GLU.GLU_SMOOTH)
GLU.gluQuadricOrientation(q, GLU.GLU_OUTSIDE)
self._glcylinder(q, r, h, sl, st, lp)
