Non-blocking visualization class.
| 38 | |
| 39 | |
| 40 | class Figure: |
| 41 | """ |
| 42 | Non-blocking visualization class. |
| 43 | """ |
| 44 | |
| 45 | server: Server |
| 46 | win: vtkRenderWindow |
| 47 | ren: vtkRenderer |
| 48 | view: vtk_widgets.VtkRemoteView |
| 49 | shapes: BiDict[str, ShapeLike] |
| 50 | actors: BiDict[str, tuple[vtkProp3D, ...]] |
| 51 | loop: AbstractEventLoop |
| 52 | thread: Thread |
| 53 | empty: bool |
| 54 | active: Optional[str] |
| 55 | last: Optional[ |
| 56 | tuple[ |
| 57 | list[ShapeLike], list[vtkProp3D], Optional[list[vtkProp3D]], list[vtkProp3D] |
| 58 | ] |
| 59 | ] |
| 60 | |
| 61 | _instance = None |
| 62 | _initialized: bool = False |
| 63 | |
| 64 | def __new__(cls, *args, **kwargs): |
| 65 | |
| 66 | if not cls._instance: |
| 67 | cls._instance = object.__new__(cls) |
| 68 | |
| 69 | return cls._instance |
| 70 | |
| 71 | def __init__(self, port: int = 18081): |
| 72 | |
| 73 | if self._initialized: |
| 74 | return |
| 75 | |
| 76 | self.loop = new_event_loop() |
| 77 | set_event_loop(self.loop) |
| 78 | |
| 79 | # vtk boilerplate |
| 80 | renderer = vtkRenderer() |
| 81 | win = vtkRenderWindow() |
| 82 | w, h = win.GetScreenSize() |
| 83 | win.SetSize(w, h) |
| 84 | win.AddRenderer(renderer) |
| 85 | win.OffScreenRenderingOn() |
| 86 | |
| 87 | inter = vtkRenderWindowInteractor() |
| 88 | inter.SetInteractorStyle(vtkInteractorStyleTrackballCamera()) |
| 89 | inter.SetRenderWindow(win) |
| 90 | |
| 91 | # background |
| 92 | renderer.SetBackground(1, 1, 1) |
| 93 | renderer.GradientBackgroundOn() |
| 94 | |
| 95 | # axes |
| 96 | axes = vtkAxesActor() |
| 97 | axes.SetDragable(0) |