def __init__(self):
""" Initialize the viewer. """
self.init_interface()
self.init_opengl()
self.init_scene()
self.init_interaction()
init_primitives()
def __init__(self):
""" Initialize the viewer. """
# 初始化接口，创建窗口并注册渲染函数
self.init_interface()
# 初始化opengl的配置
self.init_opengl()
# 初始化3d场景
self.init_scene()
# 初始化交互操作相关的代码
self.init_interaction()
init_primitives()
def create_sample_scene(self):
cube_node = Cube()
cube_node.translate(2, 0, 2)
cube_node.color_index = 1
self.scene.add_node(cube_node)
# to create a ball
sphere_node = Sphere()
# to set the ball's color
sphere_node.color_index = 3
sphere_node.translate(-2, 0, 2)
#to put the ball in the scene.Default middle of view
self.scene.add_node(sphere_node)
#to add a snowman
hierarchical_node = SnowFigure()
hierarchical_node.translate(-2, 0, -2)
self.scene.add_node(hierarchical_node)
init_primitives()