【可视化】Vispy加载STL模型并进行缩放、平移操作

话不多说，直接上代码。

Vispy加载STL模型

        file_obj = open("Body4.stl", mode='rb')
        mesh = vispy.io.stl.load_stl(file_obj)
        vertices = (mesh['vertices'])
        mesh_visual  = scene.visuals.Mesh(vertices=vertices)
        self.view.add(mesh_visual)

进行缩放+平移操作

        file_obj = open("Body4.stl", mode='rb')
        mesh = vispy.io.stl.load_stl(file_obj)
        translation_vector = np.array([10.0, 0.0, 0.0])  # 在X轴上平移10个单位
        vertices = (mesh['vertices'] * 0.1)+translation_vector
        mesh_visual  = scene.visuals.Mesh(vertices=vertices)
        self.view.add(mesh_visual)

完整代码

class Canvas(scene.SceneCanvas):

    def __init__(self):
        scene.SceneCanvas.__init__(self, keys=None)
        self.size = 800, 600
        self.unfreeze()
        self.view = self.central_widget.add_view()
        self.radius = 2.0
        self.view.camera = 'turntable'

        file_obj = open("Body4.stl", mode='rb')
        mesh = vispy.io.stl.load_stl(file_obj)
        translation_vector = np.array([10.0, 0.0, 0.0])  # 在X轴上平移10个单位
        vertices = (mesh['vertices'] * 0.1)+translation_vector
        mesh_visual  = scene.visuals.Mesh(vertices=vertices)
        self.view.add(mesh_visual)




        mesh = create_sphere(20, 20, radius=self.radius)
        vertices = mesh.get_vertices()
        tris = mesh.get_faces()

        cl = np.linspace(-self.radius, self.radius, 6 + 2)[1:-1]

        # self.iso = scene.visuals.Isoline(vertices=vertices, tris=tris,
        #                                  data=vertices[:, 2],
        #                                  levels=cl, color_lev='autumn',
        #                                  parent=self.view.scene)
        scene.visuals.XYZAxis(parent=self.view.scene)
        scene.visuals.GridLines(parent=self.view.scene)

        self.freeze()
        pos = np.random.normal(size=(100000, 3), scale=0.2)
        # Add a 3D axis to keep us oriented
        scatter = scene.visuals.Markers()
        scatter.set_data(pos, edge_width=0, face_color=(0, 1, 1, .5), size=1)
        self.view.add(scatter)

        scene.visuals.Box(parent=self.view.scene,color=(1,0,0,0),edge_color=(1,1,1))



    def set_data(self, n_levels, cmap):
        pass
        # self.iso.set_color(cmap)
        # cl = np.linspace(-self.radius, self.radius, n_levels + 2)[1:-1]
        # self.iso.levels = cl

显示效果