def turn_clipping_planes_on(self):
""" the lines may extend outside of the 'frame'
setting clipping planes are one way to prevent them from being
rendered outside """
self.turn_clipping_planes_off()
for length, normal_vector in zip(
[self.clipping_panel_geometry.l1, self.clipping_panel_geometry.l2],
[self.clipping_panel_geometry.n1, self.clipping_panel_geometry.n2
]):
d = length
a, b, c = math_utils.p3d_to_np(normal_vector)
plane1 = LPlanef(a, b, c, 0)
plane1_node = PlaneNode('', plane1)
plane1_node.setClipEffect(1)
plane1_nodepath = NodePath(plane1_node)
plane2 = LPlanef(-a, -b, -c, d)
plane2_node = PlaneNode('', plane2)
plane2_node.setClipEffect(1)
plane2_nodepath = NodePath(plane2_node)
plane1_nodepath.reparentTo(self.clipped_thing_p3d_nodepath)
self.clipped_thing_p3d_nodepath.setClipPlane(plane1_nodepath)
self.clipping_planes_p3d_nodepaths.append(plane1_nodepath)
plane2_nodepath.reparentTo(self.clipped_thing_p3d_nodepath)
self.clipped_thing_p3d_nodepath.setClipPlane(plane2_nodepath)
self.clipping_planes_p3d_nodepaths.append(plane2_nodepath)
def turn_clipping_planes_on(self):
""" the lines may extend outside of the 'frame'
setting clipping planes are one way to prevent them from being
rendered outside
if dimensions of the frame are updated, set_clipping_panel_geometry must be called before this
with the appriopriate panel geometry """
self.turn_clipping_planes_off()
for i, normal_vector in zip(Frame2d.axis_direction_indices,
Frame2d.axis_direction_vectors):
d = self.get_p3d_axis_length_from_axis_direction_index(i)
a, b, c = math_utils.p3d_to_np(normal_vector)
plane1 = LPlanef(a, b, c, 0)
plane1_node = PlaneNode('', plane1)
plane1_node.setClipEffect(1)
plane1_nodepath = NodePath(plane1_node)
plane2 = LPlanef(-a, -b, -c, d)
plane2_node = PlaneNode('', plane2)
plane2_node.setClipEffect(1)
plane2_nodepath = NodePath(plane2_node)
clipped_thing_nodepath = self.linesin2dframe.get_p3d_nodepath()
plane1_nodepath.reparentTo(clipped_thing_nodepath)
clipped_thing_nodepath.setClipPlane(plane1_nodepath)
self.clipping_planes_p3d_nodepaths.append(plane1_nodepath)
plane2_nodepath.reparentTo(clipped_thing_nodepath)
clipped_thing_nodepath.setClipPlane(plane2_nodepath)
self.clipping_planes_p3d_nodepaths.append(plane2_nodepath)