-
Notifications
You must be signed in to change notification settings - Fork 39
/
__init__.py
449 lines (387 loc) · 15.7 KB
/
__init__.py
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
from pivy import coin
from pivy.utils import get_point_on_screen
from .colors import COLORS
from .plot import plot
from .mesh import simple_quad_mesh, simple_poly_mesh
class Object3D(coin.SoSeparator):
std_col = "black"
ovr_col = "red"
sel_col = "yellow"
non_col = "grey"
def __init__(self, points, dynamic=False):
super(Object3D, self).__init__()
self.data = coin.SoCoordinate3()
self.color = coin.SoMaterial()
self.set_color()
self += [self.color, self.data]
self.start_pos = None
self.dynamic = dynamic
# callback function lists
self.on_drag = []
self.on_drag_release = []
self.on_drag_start = []
self._delete = False
self._tmp_points = None
self.enabled = True
self.points = points
def set_disabled(self):
self.color.diffuseColor = COLORS[self.non_col]
self.enabled = False
def set_enabled(self):
self.color.diffuseColor = COLORS[self.std_col]
self.enabled = True
def set_color(self, col=None):
self.std_col = col or self.std_col
self.color.diffuseColor = COLORS[self.std_col]
@property
def points(self):
return self.data.point.getValues()
@points.setter
def points(self, points):
# check if we got a list of 3D points
assert(len(points[0]) == len(points[-1]) == 3)
self.data.point.setValue(0, 0, 0)
self.data.point.setValues(0, len(points), points)
def set_mouse_over(self):
if self.enabled:
self.color.diffuseColor = COLORS[self.ovr_col]
def unset_mouse_over(self):
if self.enabled:
self.color.diffuseColor = COLORS[self.std_col]
def select(self):
if self.enabled:
self.color.diffuseColor = COLORS[self.sel_col]
def unselect(self):
if self.enabled:
self.color.diffuseColor = COLORS[self.std_col]
def drag(self, mouse_coords, fact=1.):
if self.enabled:
pts = self.points
for i, pt in enumerate(pts):
pt[0] = mouse_coords[0] * fact + self._tmp_points[i][0]
pt[1] = mouse_coords[1] * fact + self._tmp_points[i][1]
pt[2] = mouse_coords[2] * fact + self._tmp_points[i][2]
self.points = pts
for foo in self.on_drag:
foo()
def drag_release(self):
if self.enabled:
for foo in self.on_drag_release:
foo()
def drag_start(self):
self._tmp_points = self.points
if self.enabled:
for foo in self.on_drag_start:
foo()
@property
def drag_objects(self):
if self.enabled:
return [self]
return []
def delete(self):
if self.enabled and not self._delete:
self._delete = True
def check_dependency(self):
pass
class Marker(Object3D):
def __init__(self, points, dynamic=False):
super(Marker, self).__init__(points, dynamic)
self.marker = coin.SoMarkerSet()
self.marker.markerIndex = coin.SoMarkerSet.CIRCLE_FILLED_9_9
self.addChild(self.marker)
class Line(Object3D):
def __init__(self, points, dynamic=False):
super(Line, self).__init__(points, dynamic)
self.drawstyle = coin.SoDrawStyle()
self.line = coin.SoLineSet()
self.addChild(self.drawstyle)
self.addChild(self.line)
class Point(Object3D):
def __init__(self, points, dynamic=False):
super(Point, self).__init__(points, dynamic)
self.drawstyle = coin.SoDrawStyle()
self.point = coin.SoPointSet()
self.addChild(self.drawstyle)
self.addChild(self.point)
class Polygon(Object3D):
def __init__(self, points, dynamic=False):
super(Polygon, self).__init__(points, dynamic)
self.polygon = coin.SoFaceSet()
self.addChild(self.polygon)
class Arrow(Line):
def __init__(self, points, dynamic=False, arrow_size=0.04, length=2):
super(Arrow, self).__init__(points, dynamic)
self.arrow_sep = coin.SoSeparator()
self.arrow_rot = coin.SoRotation()
self.arrow_scale = coin.SoScale()
self.arrow_translate = coin.SoTranslation()
self.arrow_scale.scaleFactor.setValue(arrow_size, arrow_size, arrow_size)
self.cone = coin.SoCone()
arrow_length = coin.SoScale()
arrow_length.scaleFactor = (1, length, 1)
arrow_origin = coin.SoTranslation()
arrow_origin.translation = (0, -1, 0)
self.arrow_sep += [self.arrow_translate, self.arrow_rot, self.arrow_scale]
self.arrow_sep += [arrow_length, arrow_origin, self.cone]
self += [self.arrow_sep]
self.set_arrow_direction()
def set_arrow_direction(self):
pts = self.points
self.arrow_translate.translation = tuple(pts[-1])
direction = pts[-1] - pts[-2]
direction.normalize()
_rot = coin.SbRotation()
_rot.setValue(coin.SbVec3f(0, 1, 0), coin.SbVec3f(*direction))
self.arrow_rot.rotation.setValue(_rot)
class InteractionSeparator(coin.SoSeparator):
pick_radius = 10
def __init__(self, render_manager):
super(InteractionSeparator, self).__init__()
self.render_manager = render_manager
self.objects = coin.SoSeparator()
self.dynamic_objects = []
self.static_objects = []
self.over_object = None
self.selected_objects = []
self.drag_objects = []
self.on_drag = []
self.on_drag_release = []
self.on_drag_start = []
self._direction = None
self.events = coin.SoEventCallback()
self += self.events, self.objects
def register(self):
self._highlight_cb = self.events.addEventCallback(
coin.SoLocation2Event.getClassTypeId(), self.highlight_cb)
self._select_cb = self.events.addEventCallback(
coin.SoMouseButtonEvent.getClassTypeId(), self.select_cb)
self._grab_cb = self.events.addEventCallback(
coin.SoKeyboardEvent.getClassTypeId(), self.grab_cb)
self._delete_cb = self.events.addEventCallback(
coin.SoKeyboardEvent.getClassTypeId(), self.delete_cb)
self._select_all_cb = self.events.addEventCallback(
coin.SoKeyboardEvent.getClassTypeId(), self.select_all_cb)
def unregister(self):
self.events.removeEventCallback(
coin.SoLocation2Event.getClassTypeId(), self._highlight_cb)
self.events.removeEventCallback(
coin.SoMouseButtonEvent.getClassTypeId(), self._select_cb)
self.events.removeEventCallback(
coin.SoKeyboardEvent.getClassTypeId(), self._grab_cb)
self.events.removeEventCallback(
coin.SoKeyboardEvent.getClassTypeId(), self._delete_cb)
self.events.removeEventCallback(
coin.SoKeyboardEvent.getClassTypeId(), self._select_all_cb)
#-----------------------HIGHLIGHTING-----------------------#
# a SoLocation2Event calling a function which sends rays #
# into the scene. This will return the object the mouse is #
# currently hoovering. #
def highlight_object(self, obj):
if self.over_object:
self.over_object.unset_mouse_over()
self.over_object = obj
if self.over_object:
self.over_object.set_mouse_over()
self.color_selected()
def highlight_cb(self, attr, event_callback):
event = event_callback.getEvent()
pos = event.getPosition()
obj = self.send_ray(pos)
self.highlight_object(obj)
def send_ray(self, mouse_pos):
"""sends a ray through the scene and return the nearest entity"""
ray_pick = coin.SoRayPickAction(self.render_manager.getViewportRegion())
ray_pick.setPoint(coin.SbVec2s(*mouse_pos))
ray_pick.setRadius(10)
ray_pick.setPickAll(True)
ray_pick.apply(self.render_manager.getSceneGraph())
picked_point = ray_pick.getPickedPointList()
return self.obj_by_id(picked_point)
def obj_by_id(self, picked_point):
for point in picked_point:
path = point.getPath()
length = path.getLength()
point = path.getNode(length - 2)
point = list(filter(
lambda ctrl: ctrl.getNodeId() == point.getNodeId(),
self.dynamic_objects))
if point != []:
return point[0]
return None
#------------------------SELECTION------------------------#
def select_object(self, obj, multi=False):
if not multi:
for o in self.selected_objects:
o.unselect()
self.selected_objects = []
if obj:
if obj in self.selected_objects:
self.selected_objects.remove(obj)
else:
self.selected_objects.append(obj)
self.color_selected()
self.selection_changed()
def select_cb(self, attr, event_callback):
event = event_callback.getEvent()
if (event.getState() == coin.SoMouseButtonEvent.DOWN and
event.getButton() == event.BUTTON1):
pos = event.getPosition()
obj = self.send_ray(pos)
self.select_object(obj, event.wasCtrlDown())
def deselect_all(self):
if self.selected_objects:
for o in self.selected_objects:
o.unselect()
self.selected_objects = []
def color_selected(self):
for obj in self.selected_objects:
obj.select()
def selection_changed(self):
pass
def select_all_cb(self, attr, event_callback):
event = event_callback.getEvent()
if (event.getKey() == ord("a")):
if event.getState() == event.DOWN:
if self.selected_objects:
for o in self.selected_objects:
o.unselect()
self.selected_objects = []
else:
for obj in self.dynamic_objects:
if obj.dynamic:
self.selected_objects.append(obj)
self.color_selected()
self.selection_changed()
#------------------------INTERACTION------------------------#
def cursor_pos(self, event):
pos = event.getPosition()
return get_point_on_screen(self.render_manager, pos)
def constrained_vector(self, vector):
if self._direction is None:
return vector
if self._direction == "x":
return [vector[0], 0, 0]
elif self._direction == "y":
return [0, vector[1], 0]
elif self._direction == "z":
return [0, 0, vector[2]]
def grab_cb(self, attr, event_callback):
# press g to move an entity
event = event_callback.getEvent()
# get all drag objects, every selected object can add some drag objects
# but the eventhandler is not allowed to call the drag twice on an object
if event.getKey() == ord("g"):
self.drag_objects = set()
for i in self.selected_objects:
for j in i.drag_objects:
self.drag_objects.add(j)
# check if something is selected
if self.drag_objects:
# first delete the selection_cb, and higlight_cb
self.unregister()
# now add a callback that calls the dragfunction of the selected entities
self.start_pos = self.cursor_pos(event)
self._dragCB = self.events.addEventCallback(
coin.SoEvent.getClassTypeId(), self.dragCB)
for obj in self.drag_objects:
obj.drag_start()
for foo in self.on_drag_start:
foo()
def dragCB(self, attr, event_callback, force=False):
event = event_callback.getEvent()
if ((isinstance(event, coin.SoMouseButtonEvent) and
event.getState() == coin.SoMouseButtonEvent.DOWN
and event.getButton() == coin.SoMouseButtonEvent.BUTTON1) or
force):
self.register()
if self._dragCB:
self.events.removeEventCallback(
coin.SoEvent.getClassTypeId(), self._dragCB)
self._direction = None
self._dragCB = None
self.start_pos = None
for obj in self.drag_objects:
obj.drag_release()
for foo in self.on_drag_release:
foo()
self.drag_objects = []
elif (isinstance(event, coin.SoKeyboardEvent) and
event.getState() == coin.SoMouseButtonEvent.DOWN):
if event.getKey() == 65307: # esc
for obj in self.drag_objects:
obj.drag([0, 0, 0], 1) # set back to zero
self.dragCB(attr, event_callback, force=True)
return
try:
key = chr(event.getKey())
except ValueError:
# there is no character for this value
key = "_"
if key in "xyz" and key != self._direction:
self._direction = key
else:
self._direction = None
diff = self.cursor_pos(event) - self.start_pos
diff = self.constrained_vector(diff)
for obj in self.drag_objects:
obj.drag(diff, 1)
for foo in self.on_drag:
foo()
elif isinstance(event, coin.SoLocation2Event):
fact = 0.1 if event.wasShiftDown() else 1.
diff = self.cursor_pos(event) - self.start_pos
diff = self.constrained_vector(diff)
for obj in self.drag_objects:
obj.drag(diff, fact)
for foo in self.on_drag:
foo()
def delete_cb(self, attr, event_callback):
event = event_callback.getEvent()
# get all drag objects, every selected object can add some drag objects
# but the eventhandler is not allowed to call the drag twice on an object
if event.getKey() == ord(u"\uffff") and (event.getState() == 1):
self.remove_selected()
def remove_selected(self):
temp = []
for i in self.selected_objects:
i.delete()
for i in self.dynamic_objects + self.static_objects:
i.check_dependency() #dependency length max = 1
for i in self.dynamic_objects + self.static_objects:
if i._delete:
temp.append(i)
self.selected_objects = []
self.over_object = None
self.selection_changed()
for i in temp:
if i in self.dynamic_objects:
self.dynamic_objects.remove(i)
else:
self.static_objects.remove(i)
import sys
self.objects.removeChild(i)
del(i)
self.selection_changed()
# needs upper case as this must overwrite the addChild from coin.SoSeparator
def removeAllChildren(self, clear_all=False):
for i in self.dynamic_objects:
i.delete()
self.dynamic_objects = []
self.static_objects = []
self.selected_objects = []
self.over_object = None
if clear_all:
super(InteractionSeparator, self).removeAllChildren()
else:
# only deletes graphics objects
self.objects.removeAllChildren()
# needs upper case as this must overwrite the addChild from coin.SoSeparator
def addChild(self, child):
if hasattr(child, "dynamic"):
self.objects.addChild(child)
if child.dynamic:
self.dynamic_objects.append(child)
else:
self.static_objects.append(child)
else:
super(InteractionSeparator, self).addChild(child)