File: cube_axes_actor.py

package info (click to toggle)
python-pyvista 0.44.1-11
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 159,804 kB
  • sloc: python: 72,164; sh: 118; makefile: 68
file content (570 lines) | stat: -rw-r--r-- 18,733 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
"""Module containing the wrapping of CubeAxesActor."""

from __future__ import annotations

from typing import TYPE_CHECKING

import numpy as np

import pyvista
from pyvista.core.utilities.arrays import convert_string_array

from . import _vtk

if TYPE_CHECKING:  # pragma: no cover
    from pyvista.core._typing_core import BoundsLike


def make_axis_labels(vmin, vmax, n, fmt):
    """
    Create axis labels as a vtkStringArray.

    Parameters
    ----------
    vmin : float
        The minimum value for the axis labels.
    vmax : float
        The maximum value for the axis labels.
    n : int
        The number of labels to create.
    fmt : str
        A format string for the labels. If the string starts with '%', the label will be formatted using the old-style string formatting method.
        Otherwise, the label will be formatted using the new-style string formatting method.

    Returns
    -------
    vtkStringArray
        The created labels as a vtkStringArray object.
    """
    labels = _vtk.vtkStringArray()
    for v in np.linspace(vmin, vmax, n):
        label = (fmt % v if fmt.startswith('%') else fmt.format(v)) if fmt else f'{v}'
        labels.InsertNextValue(label)
    return labels


class CubeAxesActor(_vtk.vtkCubeAxesActor):
    """Wrap vtkCubeAxesActor.

    This class is created to wrap vtkCubeAxesActor, which is used to draw axes
    and labels for the input data bounds. This wrapping aims to provide a
    user-friendly interface to use `vtkCubeAxesActor
    <https://vtk.org/doc/nightly/html/classvtkCubeAxesActor.html>`_.

    Parameters
    ----------
    camera : pyvista.Camera
        Camera to link to the axes actor.

    minor_ticks : bool, default: False
        If ``True``, also plot minor ticks on all axes.

    tick_location : str, optional
        Set how the ticks are drawn on the axes grid. Options include:
        ``'inside', 'outside', 'both'``.

    x_title : str, default: "X Axis"
        Title of the x-axis.

    y_title : str, default: "Y Axis"
        Title of the y-axis.

    z_title : str, default: "Z Axis"
        Title of the z-axis.

    x_axis_visibility : bool, default: True
        Visibility of the x-axis.

    y_axis_visibility : bool, default: True
        Visibility of the y-axis.

    z_axis_visibility : bool, default: True
        Visibility of the z-axis.

    x_label_format : str, optional
        A format string defining how tick labels are generated from tick
        positions for the x-axis. Defaults to the theme format if set,
        otherwise ``'%.1f'``.

    y_label_format : str, optional
        A format string defining how tick labels are generated from tick
        positions for the y-axis. Defaults to the theme format if set,
        otherwise ``'%.1f'``.

    z_label_format : str, optional
        A format string defining how tick labels are generated from tick
        positions for the z-axis. Defaults to the theme format if set,
        otherwise ``'%.1f'``.

    x_label_visibility : bool, default: True
        The visibility of the x-axis labels.

    y_label_visibility : bool, default: True
        The visibility of the y-axis labels.

    z_label_visibility : bool, default: True
        The visibility of the z-axis labels.

    n_xlabels : int, default: 5
        Number of labels along the x-axis.

    n_ylabels : int, default: 5
        Number of labels along the y-axis.

    n_zlabels : int, default: 5
        Number of labels along the z-axis.

    Examples
    --------
    Create a 3D plotter and add a CubeAxesActor to it.

    >>> import pyvista as pv
    >>> mesh = pv.Cube()
    >>> pl = pv.Plotter()
    >>> actor = pl.add_mesh(mesh)
    >>> cube_axes_actor = pv.CubeAxesActor(pl.camera)
    >>> cube_axes_actor.bounds = mesh.bounds
    >>> actor, property = pl.add_actor(cube_axes_actor)
    >>> pl.show()

    """

    def __init__(
        self,
        camera,
        minor_ticks=False,
        tick_location=None,
        x_title='X Axis',
        y_title='Y Axis',
        z_title='Z Axis',
        x_axis_visibility=True,
        y_axis_visibility=True,
        z_axis_visibility=True,
        x_label_format=None,
        y_label_format=None,
        z_label_format=None,
        x_label_visibility=True,
        y_label_visibility=True,
        z_label_visibility=True,
        n_xlabels=5,
        n_ylabels=5,
        n_zlabels=5,
    ):
        """Initialize CubeAxesActor."""
        super().__init__()
        self.camera = camera

        # empty string used for clearing axis labels
        self._empty_str = _vtk.vtkStringArray()
        self._empty_str.InsertNextValue('')

        # stop labels from being generated several times during init
        self.x_axis_visibility = False
        self.y_axis_visibility = False
        self.z_axis_visibility = False

        if not minor_ticks:
            self.x_axis_minor_tick_visibility = minor_ticks
            self.y_axis_minor_tick_visibility = minor_ticks
            self.z_axis_minor_tick_visibility = minor_ticks

        if tick_location:
            self.tick_location = tick_location
        self.x_title = x_title
        self.y_title = y_title
        self.z_title = z_title

        self._x_label_visibility = x_label_visibility
        self._y_label_visibility = y_label_visibility
        self._z_label_visibility = z_label_visibility

        if x_label_format is None:
            x_label_format = pyvista.global_theme.font.fmt
            if x_label_format is None:
                x_label_format = '%.1f'
        if y_label_format is None:
            y_label_format = pyvista.global_theme.font.fmt
            if y_label_format is None:
                y_label_format = '%.1f'
        if z_label_format is None:
            z_label_format = pyvista.global_theme.font.fmt
            if z_label_format is None:
                z_label_format = '%.1f'

        self.x_label_format = x_label_format
        self.y_label_format = y_label_format
        self.z_label_format = z_label_format

        self.n_xlabels = n_xlabels
        self.n_ylabels = n_ylabels
        self.n_zlabels = n_zlabels

        self.x_axis_visibility = x_axis_visibility
        self.y_axis_visibility = y_axis_visibility
        self.z_axis_visibility = z_axis_visibility

    @property
    def tick_location(self) -> str:  # numpydoc ignore=RT01
        """Return or set how the ticks are drawn on the axes grid.

        Options include: ``'inside', 'outside', 'both'``.
        """
        tloc = self.GetTickLocation()
        if tloc == 0:
            return 'inside'
        if tloc == 1:
            return 'outside'
        return 'both'

    @tick_location.setter
    def tick_location(self, value: str):  # numpydoc ignore=GL08
        if not isinstance(value, str):
            raise TypeError(f'`tick_location` must be a string, not {type(value)}')
        value = value.lower()
        if value in ('inside'):
            self.SetTickLocationToInside()
        elif value in ('outside'):
            self.SetTickLocationToOutside()
        elif value in ('both'):
            self.SetTickLocationToBoth()
        else:
            raise ValueError(
                f'Value of tick_location ("{value}") should be either "inside", "outside", '
                'or "both".',
            )

    @property
    def bounds(self) -> BoundsLike:  # numpydoc ignore=RT01
        """Return or set the bounding box."""
        return self.GetBounds()

    @bounds.setter
    def bounds(self, bounds: BoundsLike):  # numpydoc ignore=GL08
        self.SetBounds(bounds)
        self._update_labels()
        self.x_axis_range = float(bounds[0]), float(bounds[1])
        self.y_axis_range = float(bounds[2]), float(bounds[3])
        self.z_axis_range = float(bounds[4]), float(bounds[5])

    @property
    def x_axis_range(self) -> tuple[float, float]:  # numpydoc ignore=RT01
        """Return or set the x-axis range."""
        return self.GetXAxisRange()

    @x_axis_range.setter
    def x_axis_range(self, value: tuple[float, float]):  # numpydoc ignore=GL08
        self.SetXAxisRange(value)
        self._update_x_labels()

    @property
    def y_axis_range(self) -> tuple[float, float]:  # numpydoc ignore=RT01
        """Return or set the y-axis range."""
        return self.GetYAxisRange()

    @y_axis_range.setter
    def y_axis_range(self, value: tuple[float, float]):  # numpydoc ignore=GL08
        self.SetYAxisRange(value)
        self._update_y_labels()

    @property
    def z_axis_range(self) -> tuple[float, float]:  # numpydoc ignore=RT01
        """Return or set the z-axis range."""
        return self.GetZAxisRange()

    @z_axis_range.setter
    def z_axis_range(self, value: tuple[float, float]):  # numpydoc ignore=GL08
        self.SetZAxisRange(value)
        self._update_z_labels()

    @property
    def label_offset(self) -> float:  # numpydoc ignore=RT01
        """Return or set the distance between labels and the axis."""
        return self.GetLabelOffset()

    @label_offset.setter
    def label_offset(self, offset: float):  # numpydoc ignore=GL08
        self.SetLabelOffset(offset)

    @property
    def title_offset(self) -> float:  # numpydoc ignore=RT01
        """Return or set the distance between title and labels."""
        return self.GetTitleOffset()

    @title_offset.setter
    def title_offset(self, offset: float):  # numpydoc ignore=GL08
        self.SetTitleOffset(offset)

    @property
    def camera(self) -> pyvista.Camera:  # numpydoc ignore=RT01
        """Return or set the camera that performs scaling and translation."""
        return self.GetCamera()

    @camera.setter
    def camera(self, camera: pyvista.Camera):  # numpydoc ignore=GL08
        self.SetCamera(camera)

    @property
    def x_axis_minor_tick_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set visibility of the x-axis minior tick."""
        return bool(self.GetXAxisMinorTickVisibility())

    @x_axis_minor_tick_visibility.setter
    def x_axis_minor_tick_visibility(self, value: bool):  # numpydoc ignore=GL08
        self.SetXAxisMinorTickVisibility(value)

    @property
    def y_axis_minor_tick_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set visibility of the y-axis minior tick."""
        return bool(self.GetYAxisMinorTickVisibility())

    @y_axis_minor_tick_visibility.setter
    def y_axis_minor_tick_visibility(self, value: bool):  # numpydoc ignore=GL08
        self.SetYAxisMinorTickVisibility(value)

    @property
    def z_axis_minor_tick_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set visibility of the z-axis minior tick."""
        return bool(self.GetZAxisMinorTickVisibility())

    @z_axis_minor_tick_visibility.setter
    def z_axis_minor_tick_visibility(self, value: bool):  # numpydoc ignore=GL08
        self.SetZAxisMinorTickVisibility(value)

    @property
    def x_label_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set the visibility of the x-axis labels."""
        return self._x_label_visibility

    @x_label_visibility.setter
    def x_label_visibility(self, value: bool):  # numpydoc ignore=GL08
        self._x_label_visibility = bool(value)
        self._update_x_labels()

    @property
    def y_label_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set the visibility of the y-axis labels."""
        return self._y_label_visibility

    @y_label_visibility.setter
    def y_label_visibility(self, value: bool):  # numpydoc ignore=GL08
        self._y_label_visibility = bool(value)
        self._update_y_labels()

    @property
    def z_label_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set the visibility of the z-axis labels."""
        return self._z_label_visibility

    @z_label_visibility.setter
    def z_label_visibility(self, value: bool):  # numpydoc ignore=GL08
        self._z_label_visibility = bool(value)
        self._update_z_labels()

    @property
    def x_axis_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set the visibility of the x-axis."""
        return bool(self.GetXAxisVisibility())

    @x_axis_visibility.setter
    def x_axis_visibility(self, value: bool):  # numpydoc ignore=GL08
        self.SetXAxisVisibility(value)

    @property
    def y_axis_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set the visibility of the y-axis."""
        return bool(self.GetYAxisVisibility())

    @y_axis_visibility.setter
    def y_axis_visibility(self, value: bool):  # numpydoc ignore=GL08
        self.SetYAxisVisibility(value)

    @property
    def z_axis_visibility(self) -> bool:  # numpydoc ignore=RT01
        """Return or set the visibility of the y-axis."""
        return bool(self.GetZAxisVisibility())

    @z_axis_visibility.setter
    def z_axis_visibility(self, value: bool):  # numpydoc ignore=GL08
        self.SetZAxisVisibility(value)

    @property
    def x_label_format(self) -> str:  # numpydoc ignore=RT01
        """Return or set the label of the x-axis."""
        return self.GetXLabelFormat()

    @x_label_format.setter
    def x_label_format(self, value: str):  # numpydoc ignore=GL08
        self.SetXLabelFormat(value)
        self._update_x_labels()

    @property
    def y_label_format(self) -> str:  # numpydoc ignore=RT01
        """Return or set the label of the y-axis."""
        return self.GetYLabelFormat()

    @y_label_format.setter
    def y_label_format(self, value: str):  # numpydoc ignore=GL08
        self.SetYLabelFormat(value)
        self._update_y_labels()

    @property
    def z_label_format(self) -> str:  # numpydoc ignore=RT01
        """Return or set the label of the z-axis."""
        return self.GetZLabelFormat()

    @z_label_format.setter
    def z_label_format(self, value: str):  # numpydoc ignore=GL08
        self.SetZLabelFormat(value)
        self._update_z_labels()

    @property
    def x_title(self) -> str:  # numpydoc ignore=RT01
        """Return or set the title of the x-axis."""
        return self._x_title

    @x_title.setter
    def x_title(self, value: str):  # numpydoc ignore=GL08
        self._x_title = value
        self._update_x_labels()

    @property
    def y_title(self) -> str:  # numpydoc ignore=RT01
        """Return or set the title of the y-axis."""
        return self._y_title

    @y_title.setter
    def y_title(self, value: str):  # numpydoc ignore=GL08
        self._y_title = value
        self._update_y_labels()

    @property
    def z_title(self) -> str:  # numpydoc ignore=RT01
        """Return or set the title of the z-axis."""
        return self._z_title

    @z_title.setter
    def z_title(self, value: str):  # numpydoc ignore=GL08
        self._z_title = value
        self._update_z_labels()

    @property
    def use_2d_mode(self) -> bool:  # numpydoc ignore=RT01
        """Use the 2d render mode.

        This can be enabled for smoother plotting.
        """
        return bool(self.GetUse2DMode())

    @use_2d_mode.setter
    def use_2d_mode(self, value: bool):  # numpydoc ignore=GL08
        self.SetUse2DMode(value)

    @property
    def n_xlabels(self):  # numpydoc ignore=RT01
        """Number of labels on the x-axis."""
        return self._n_xlabels

    @n_xlabels.setter
    def n_xlabels(self, value: int):  # numpydoc ignore=GL08
        self._n_xlabels = value
        self._update_x_labels()

    @property
    def n_ylabels(self):  # numpydoc ignore=RT01
        """Number of labels on the y-axis."""
        return self._n_ylabels

    @n_ylabels.setter
    def n_ylabels(self, value: int):  # numpydoc ignore=GL08
        self._n_ylabels = value
        self._update_y_labels()

    @property
    def n_zlabels(self):  # numpydoc ignore=RT01
        """Number of labels on the z-axis."""
        return self._n_zlabels

    @n_zlabels.setter
    def n_zlabels(self, value: int):  # numpydoc ignore=GL08
        self._n_zlabels = value
        self._update_z_labels()

    def _update_labels(self):
        """Update all labels."""
        self._update_x_labels()
        self._update_y_labels()
        self._update_z_labels()

    def _update_x_labels(self):
        """Regenerate x-axis labels."""
        if self.x_axis_visibility:
            self.SetXTitle(self._x_title)
            if self._x_label_visibility:
                self.SetAxisLabels(
                    0,
                    make_axis_labels(*self.x_axis_range, self.n_xlabels, self.x_label_format),
                )
            else:
                self.SetAxisLabels(0, self._empty_str)
        else:
            self.SetXTitle('')
            self.SetAxisLabels(0, self._empty_str)

    def _update_y_labels(self):
        """Regenerate y-axis labels."""
        if self.y_axis_visibility:
            self.SetYTitle(self._y_title)
            if self._y_label_visibility:
                self.SetAxisLabels(
                    1,
                    make_axis_labels(*self.y_axis_range, self.n_ylabels, self.y_label_format),
                )
            else:
                self.SetAxisLabels(1, self._empty_str)
        else:
            self.SetYTitle('')
            self.SetAxisLabels(1, self._empty_str)

    def _update_z_labels(self):
        """Regenerate z-axis labels."""
        if self.z_axis_visibility:
            self.SetZTitle(self._z_title)
            if self._z_label_visibility:
                self.SetAxisLabels(
                    2,
                    make_axis_labels(*self.z_axis_range, self.n_zlabels, self.z_label_format),
                )
            else:
                self.SetAxisLabels(2, self._empty_str)
        else:
            self.SetZTitle('')
            self.SetAxisLabels(2, self._empty_str)

    @property
    def x_labels(self) -> list[str]:  # numpydoc ignore=RT01
        """Return the x-axis labels."""
        return convert_string_array(self.GetAxisLabels(0))

    @property
    def y_labels(self) -> list[str]:  # numpydoc ignore=RT01
        """Return the y-axis labels."""
        return convert_string_array(self.GetAxisLabels(1))

    @property
    def z_labels(self) -> list[str]:  # numpydoc ignore=RT01
        """Return the z-axis labels."""
        return convert_string_array(self.GetAxisLabels(2))

    def update_bounds(self, bounds):
        """Update the bounds of this actor.

        Unlike the :attr:`CubeAxesActor.bounds` attribute, updating the bounds
        also updates the axis labels.

        Parameters
        ----------
        bounds : sequence[float]
            Bounds in the form of ``[xmin, xmax, ymin, ymax, zmin, zmax]``.

        """
        self.bounds = bounds