def create_sample_scene(self):
# to create a ball
sphere_node = Sphere()
# to set the ball's color
sphere_node.color_index = 2
sphere_node.translate(2, 2, 0)
sphere_node.scale(4)
#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)
hierarchical_node.scale(2)
self.scene.add_node(hierarchical_node)
def create_sample_scene(self):
# 创建一个立方体
cube_node = Cube()
cube_node.translate(2, 0, 2)
cube_node.color_index = 1
self.scene.add_node(cube_node)
# 创建一个球体
sphere_node = Sphere()
# 设置球体颜色
sphere_node.color_index = 2
sphere_node.translate(2, 2, 0)
sphere_node.scale(4)
# 将球体放入场景
self.scene.add_node(sphere_node)
# 添加雪人
hierarchical_node = SnowFigure()
hierarchical_node.translate(-2, 0, -2)
hierarchical_node.scale(2)
self.scene.add_node(hierarchical_node)