/
testGMDS.py
486 lines (428 loc) · 16.2 KB
/
testGMDS.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
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
#Based off of http://wiki.wxpython.org/GLCanvas
#Lots of help from http://wiki.wxpython.org/Getting%20Started
from OpenGL.GL import *
import wx
from wx import glcanvas
from Primitives3D import *
from PolyMesh import *
from LaplacianMesh import *
from Geodesics import *
from PointCloud import *
from Cameras3D import *
from ICP import *
from sys import exit, argv
import random
import numpy as np
import scipy.io as sio
from pylab import cm
import os
import subprocess
import math
import time
#from sklearn import manifold
from GMDS import *
DEFAULT_SIZE = wx.Size(1200, 800)
DEFAULT_POS = wx.Point(10, 10)
PRINCIPAL_AXES_SCALEFACTOR = 1
def saveImageGL(mvcanvas, filename):
view = glGetIntegerv(GL_VIEWPORT)
img = wx.EmptyImage(view[2], view[3] )
pixels = glReadPixels(0, 0, view[2], view[3], GL_RGB,
GL_UNSIGNED_BYTE)
img.SetData( pixels )
img = img.Mirror(False)
img.SaveFile(filename, wx.BITMAP_TYPE_PNG)
def saveImage(canvas, filename):
s = wx.ScreenDC()
w, h = canvas.size.Get()
b = wx.EmptyBitmap(w, h)
m = wx.MemoryDCFromDC(s)
m.SelectObject(b)
m.Blit(0, 0, w, h, s, 70, 0)
m.SelectObject(wx.NullBitmap)
b.SaveFile(filename, wx.BITMAP_TYPE_PNG)
class MeshViewerCanvas(glcanvas.GLCanvas):
def __init__(self, parent):
attribs = (glcanvas.WX_GL_RGBA, glcanvas.WX_GL_DOUBLEBUFFER, glcanvas.WX_GL_DEPTH_SIZE, 24)
glcanvas.GLCanvas.__init__(self, parent, -1, attribList = attribs)
self.context = glcanvas.GLContext(self)
self.parent = parent
#Camera state variables
self.size = self.GetClientSize()
#self.camera = MouseSphericalCamera(self.size.x, self.size.y)
self.camera = MousePolarCamera(self.size.width, self.size.height)
#Main state variables
self.MousePos = [0, 0]
self.initiallyResized = False
self.bbox = BBox3D()
self.unionbbox = BBox3D()
random.seed()
#Face mesh variables and manipulation variables
self.mesh1 = None
self.mesh1Dist = None
self.mesh1DistLoaded = False
self.mesh2 = None
self.mesh2DistLoaded = False
self.mesh2Dist = None
self.mesh3 = None
#Holds the transformations of the best iteration in ICP
self.transformations = []
self.savingMovie = False
self.movieIter = 0
self.displayMeshFaces = True
self.displayMeshEdges = False
self.displayMeshVertices = False
self.displayMeshNormals = False
self.displayPrincipalAxes = False
self.vertexColors = np.zeros(0)
self.cutPlane = None
self.displayCutPlane = False
self.GLinitialized = False
#GL-related events
wx.EVT_ERASE_BACKGROUND(self, self.processEraseBackgroundEvent)
wx.EVT_SIZE(self, self.processSizeEvent)
wx.EVT_PAINT(self, self.processPaintEvent)
#Mouse Events
wx.EVT_LEFT_DOWN(self, self.MouseDown)
wx.EVT_LEFT_UP(self, self.MouseUp)
wx.EVT_RIGHT_DOWN(self, self.MouseDown)
wx.EVT_RIGHT_UP(self, self.MouseUp)
wx.EVT_MIDDLE_DOWN(self, self.MouseDown)
wx.EVT_MIDDLE_UP(self, self.MouseUp)
wx.EVT_MOTION(self, self.MouseMotion)
#self.initGL()
def initPointCloud(self, pointCloud):
self.pointCloud = pointCloud
def centerOnMesh1(self, evt):
if not self.mesh1:
return
self.bbox = self.mesh1.getBBox()
self.camera.centerOnBBox(self.bbox, theta = -math.pi/2, phi = math.pi/2)
self.Refresh()
def centerOnMesh2(self, evt):
if not self.mesh2:
return
self.bbox = self.mesh2.getBBox()
self.camera.centerOnBBox(self.bbox, theta = -math.pi/2, phi = math.pi/2)
self.Refresh()
def centerOnBoth(self, evt):
if not self.mesh1 or not self.mesh2:
return
self.bbox = self.mesh1.getBBox()
self.bbox.Union(self.mesh2.getBBox())
self.camera.centerOnBBox(self.bbox, theta = -math.pi/2, phi = math.pi/2)
self.Refresh()
def MDSMesh1(self, evt):
if not self.mesh1:
print "ERROR: Mesh 1 not loaded yet"
return
if not self.mesh1DistLoaded:
print "ERROR: Mesh 1 distance matrix not loaded"
return
mds = manifold.MDS(n_components=2, dissimilarity="precomputed", n_jobs=1)
print "Doing MDS on mesh 1...."
pos = mds.fit(self.mesh1Dist).embedding_
print "Finished MDS on mesh 1"
for i in range(pos.shape[0]):
self.mesh1.vertices[i].pos = Point3D(pos[i, 0], pos[i, 1], pos[i, 2])
self.mesh1.needsDisplayUpdate = True
self.Refresh()
def MDSMesh2(self, evt):
if not self.mesh2:
print "ERROR: Mesh 2 not loaded yet"
return
if not self.mesh2DistLoaded:
print "ERROR: Mesh 2 distance matrix not loaded"
return
mds = manifold.MDS(n_components=2, dissimilarity="precomputed", n_jobs=1)
print "Doing MDS on mesh 2..."
pos = mds.fit(self.mesh2Dist).embedding_
print "Finished MDS on mesh 2"
for i in range(pos.shape[0]):
self.mesh2.vertices[i].pos = Point3D(pos[i, 0], pos[i, 1], pos[i, 2])
self.mesh2.needsDisplayUpdate = True
self.Refresh()
def doGMDS(self, evt):
if self.mesh1 and self.mesh2:
if not self.mesh1DistLoaded:
print "Mesh 1 distance not loaded"
return
if not self.mesh2DistLoaded:
print "Mesh 2 distance not loaded"
return
N = len(self.mesh1.vertices)
VX = np.zeros((N, 3))
for i in range(N):
V = self.mesh1.vertices[i].pos
VX[i, :] = np.array([V.x, V.y, V.z])
print "Doing GMDS..."
t, u = GMDSPointsToMesh(VX, self.mesh1Dist, self.mesh2, self.mesh2Dist)
print "Finished GMDS"
#Update the vertices based on the triangles where they landed
#and the barycentric coordinates of those triangles
for i in range(N):
Vs = [v.pos for v in self.mesh2.faces[int(t[i].flatten()[0])].getVertices()]
pos = Point3D(0, 0, 0)
for k in range(3):
pos = pos + u[i, k]*Vs[k]
self.mesh1.vertices[i].pos = pos
self.mesh1.needsDisplayUpdate = True
else:
print "ERROR: One or both meshes have not been loaded yet"
self.Refresh()
def displayMeshFacesCheckbox(self, evt):
self.displayMeshFaces = evt.Checked()
self.Refresh()
def displayMeshEdgesCheckbox(self, evt):
self.displayMeshEdges = evt.Checked()
self.Refresh()
def displayCutPlaneCheckbox(self, evt):
self.displayCutPlane = evt.Checked()
self.Refresh()
def displayMeshVerticesCheckbox(self, evt):
self.displayMeshVertices = evt.Checked()
self.Refresh()
def displayPrincipalAxesCheckbox(self, evt):
self.displayPrincipalAxes = evt.Checked()
self.Refresh()
def processEraseBackgroundEvent(self, event): pass #avoid flashing on MSW.
def processSizeEvent(self, event):
self.size = self.GetClientSize()
self.SetCurrent(self.context)
glViewport(0, 0, self.size.width, self.size.height)
if not self.initiallyResized:
#The canvas gets resized once on initialization so the camera needs
#to be updated accordingly at that point
self.camera = MousePolarCamera(self.size.width, self.size.height)
self.camera.centerOnBBox(self.bbox, math.pi/2, math.pi/2)
self.initiallyResized = True
def processPaintEvent(self, event):
dc = wx.PaintDC(self)
self.SetCurrent(self.context)
if not self.GLinitialized:
self.initGL()
self.GLinitialized = True
self.repaint()
def repaint(self):
#Set up projection matrix
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
farDist = (self.camera.eye - self.bbox.getCenter()).Length()*2
#This is to make sure we can see on the inside
farDist = max(farDist, self.unionbbox.getDiagLength()*2)
nearDist = farDist/50.0
gluPerspective(180.0*self.camera.yfov/M_PI, float(self.size.x)/self.size.y, nearDist, farDist)
#Set up modelview matrix
self.camera.gotoCameraFrame()
glClearColor(0.0, 0.0, 0.0, 0.0)
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLightfv(GL_LIGHT0, GL_POSITION, [3.0, 4.0, 5.0, 0.0]);
glLightfv(GL_LIGHT1, GL_POSITION, [-3.0, -2.0, -3.0, 0.0]);
glEnable(GL_LIGHTING)
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, [0.8, 0.8, 0.8, 1.0]);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, [0.2, 0.2, 0.2, 1.0])
glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, 64)
if self.mesh1:
self.mesh1.renderGL(True, True, False, False, None)
if self.mesh2:
self.mesh2.renderGL(self.displayMeshEdges, self.displayMeshVertices, self.displayMeshNormals, self.displayMeshFaces, None)
self.SwapBuffers()
def initGL(self):
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, [0.2, 0.2, 0.2, 1.0])
glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE)
glLightfv(GL_LIGHT0, GL_DIFFUSE, [1.0, 1.0, 1.0, 1.0])
glEnable(GL_LIGHT0)
glLightfv(GL_LIGHT1, GL_DIFFUSE, [0.5, 0.5, 0.5, 1.0])
glEnable(GL_LIGHT1)
glEnable(GL_NORMALIZE)
glEnable(GL_LIGHTING)
glEnable(GL_DEPTH_TEST)
def handleMouseStuff(self, x, y):
#Invert y from what the window manager says
y = self.size.height - y
self.MousePos = [x, y]
def MouseDown(self, evt):
x, y = evt.GetPosition()
self.CaptureMouse()
self.handleMouseStuff(x, y)
self.Refresh()
def MouseUp(self, evt):
x, y = evt.GetPosition()
self.handleMouseStuff(x, y)
self.ReleaseMouse()
self.Refresh()
def MouseMotion(self, evt):
x, y = evt.GetPosition()
[lastX, lastY] = self.MousePos
self.handleMouseStuff(x, y)
dX = self.MousePos[0] - lastX
dY = self.MousePos[1] - lastY
if evt.Dragging():
if evt.MiddleIsDown():
self.camera.translate(dX, dY)
elif evt.RightIsDown():
self.camera.zoom(-dY)#Want to zoom in as the mouse goes up
elif evt.LeftIsDown():
self.camera.orbitLeftRight(dX)
self.camera.orbitUpDown(dY)
self.Refresh()
class MeshViewerFrame(wx.Frame):
(ID_LOADDATASET1, ID_LOADDATASET2, ID_SAVEDATASET, ID_SAVESCREENSHOT) = (1, 2, 3, 4)
def __init__(self, parent, id, title, pos=DEFAULT_POS, size=DEFAULT_SIZE, style=wx.DEFAULT_FRAME_STYLE, name = 'GLWindow', mesh1 = None, mesh2 = None):
style = style | wx.NO_FULL_REPAINT_ON_RESIZE
super(MeshViewerFrame, self).__init__(parent, id, title, pos, size, style, name)
#Initialize the menu
self.CreateStatusBar()
self.size = size
self.pos = pos
print "MeshViewerFrameSize = %s, pos = %s"%(self.size, self.pos)
filemenu = wx.Menu()
menuOpenMesh1 = filemenu.Append(MeshViewerFrame.ID_LOADDATASET1, "&Load Mesh1","Load a polygon mesh")
self.Bind(wx.EVT_MENU, self.OnLoadMesh1, menuOpenMesh1)
menuOpenMesh2 = filemenu.Append(MeshViewerFrame.ID_LOADDATASET2, "&Load Mesh2","Load a polygon mesh")
self.Bind(wx.EVT_MENU, self.OnLoadMesh2, menuOpenMesh2)
menuSaveScreenshot = filemenu.Append(MeshViewerFrame.ID_SAVESCREENSHOT, "&Save Screenshot", "Save a screenshot of the GL Canvas")
self.Bind(wx.EVT_MENU, self.OnSaveScreenshot, menuSaveScreenshot)
menuExit = filemenu.Append(wx.ID_EXIT,"E&xit"," Terminate the program")
self.Bind(wx.EVT_MENU, self.OnExit, menuExit)
# Creating the menubar.
menuBar = wx.MenuBar()
menuBar.Append(filemenu,"&File") # Adding the "filemenu" to the MenuBar
self.SetMenuBar(menuBar) # Adding the MenuBar to the Frame content.
self.glcanvas = MeshViewerCanvas(self)
self.glcanvas.mesh1 = None
self.glcanvas.mesh2 = None
if mesh1:
(self.glcanvas.mesh1, self.glcanvas.mesh1Dist) = self.loadMesh(mesh1)
if self.glcanvas.mesh1Dist.shape[0] > 0:
self.glcanvas.mesh1DistLoaded = True
else:
self.glcanvas.mesh1DistLoaded = False
if mesh2:
(self.glcanvas.mesh2, self.glcanvas.mesh2Dist) = self.loadMesh(mesh2)
if self.glcanvas.mesh2Dist.shape[0] > 0:
self.glcanvas.mesh2DistLoaded = True
else:
self.glcanvas.mesh2DistLoaded = False
self.rightPanel = wx.BoxSizer(wx.VERTICAL)
#Buttons to go to a default view
viewPanel = wx.BoxSizer(wx.HORIZONTAL)
center1Button = wx.Button(self, -1, "Mesh1")
self.Bind(wx.EVT_BUTTON, self.glcanvas.centerOnMesh1, center1Button)
viewPanel.Add(center1Button, 0, wx.EXPAND)
center2Button = wx.Button(self, -1, "Mesh2")
self.Bind(wx.EVT_BUTTON, self.glcanvas.centerOnMesh2, center2Button)
viewPanel.Add(center2Button, 0, wx.EXPAND)
bothButton = wx.Button(self, -1, "Both")
self.Bind(wx.EVT_BUTTON, self.glcanvas.centerOnBoth, bothButton)
viewPanel.Add(bothButton, 0, wx.EXPAND)
self.rightPanel.Add(wx.StaticText(self, label="Views"), 0, wx.EXPAND)
self.rightPanel.Add(viewPanel, 0, wx.EXPAND)
#Buttons for MDS
MDSPanel = wx.BoxSizer(wx.HORIZONTAL)
MDS1Button = wx.Button(self, -1, "MDS Mesh1")
self.Bind(wx.EVT_BUTTON, self.glcanvas.MDSMesh1, MDS1Button)
MDSPanel.Add(MDS1Button, 0, wx.EXPAND)
MDS2Button = wx.Button(self, -1, "MDS Mesh2")
self.Bind(wx.EVT_BUTTON, self.glcanvas.MDSMesh2, MDS2Button)
MDSPanel.Add(MDS2Button, 0, wx.EXPAND)
self.rightPanel.Add(wx.StaticText(self, label="MDS on Meshes"), 0, wx.EXPAND)
self.rightPanel.Add(MDSPanel, 0, wx.EXPAND)
#Checkboxes for displaying data
self.displayMeshFacesCheckbox = wx.CheckBox(self, label = "Display Mesh Faces")
self.displayMeshFacesCheckbox.SetValue(True)
self.Bind(wx.EVT_CHECKBOX, self.glcanvas.displayMeshFacesCheckbox, self.displayMeshFacesCheckbox)
self.rightPanel.Add(self.displayMeshFacesCheckbox, 0, wx.EXPAND)
self.displayMeshEdgesCheckbox = wx.CheckBox(self, label = "Display Mesh Edges")
self.displayMeshEdgesCheckbox.SetValue(False)
self.Bind(wx.EVT_CHECKBOX, self.glcanvas.displayMeshEdgesCheckbox, self.displayMeshEdgesCheckbox)
self.rightPanel.Add(self.displayMeshEdgesCheckbox, 0, wx.EXPAND)
self.displayMeshVerticesCheckbox = wx.CheckBox(self, label = "Display Mesh Points")
self.displayMeshVerticesCheckbox.SetValue(False)
self.Bind(wx.EVT_CHECKBOX, self.glcanvas.displayMeshVerticesCheckbox, self.displayMeshVerticesCheckbox)
self.rightPanel.Add(self.displayMeshVerticesCheckbox)
#Button for doing ICP
GMDSButton = wx.Button(self, -1, "DO GMDS")
self.Bind(wx.EVT_BUTTON, self.glcanvas.doGMDS, GMDSButton)
self.rightPanel.Add(GMDSButton, 0, wx.EXPAND)
#Finally add the two main panels to the sizer
self.sizer = wx.BoxSizer(wx.HORIZONTAL)
self.sizer.Add(self.glcanvas, 2, wx.EXPAND)
self.sizer.Add(self.rightPanel, 0, wx.EXPAND)
self.SetSizer(self.sizer)
self.Layout()
self.Show()
def loadMesh(self, filepath):
print "Loading mesh %s..."%filepath
mesh = LaplacianMesh()
mesh.loadFile(filepath)
print "Finished loading mesh 1\n %s"%mesh
#Now try to load in the distance matrix
fileName, fileExtension = os.path.splitext(filepath)
matfile = sio.loadmat("%s.mat"%fileName)
D = np.array([])
if 'D' in matfile:
D = matfile['D']
else:
print "ERROR: No distance matrix found for mesh %s"%filepath
return (mesh, D)
def OnLoadMesh1(self, evt):
dlg = wx.FileDialog(self, "Choose a file", ".", "", "OBJ files (*.obj)|*.obj|OFF files (*.off)|*.off", wx.OPEN)
if dlg.ShowModal() == wx.ID_OK:
filename = dlg.GetFilename()
dirname = dlg.GetDirectory()
filepath = os.path.join(dirname, filename)
print dirname
(self.glcanvas.mesh1, self.glcanvas.mesh1Dist) = self.loadMesh(filepath)
self.glcanvas.bbox = self.glcanvas.mesh1.getBBox()
print "Mesh BBox: %s\n"%self.glcanvas.bbox
self.glcanvas.camera.centerOnBBox(self.glcanvas.bbox, theta = -math.pi/2, phi = math.pi/2)
#Now try to load in the distance matrix
if self.glcanvas.mesh1Dist.shape[0] > 0:
self.glcanvas.mesh1DistLoaded = True
self.glcanvas.Refresh()
dlg.Destroy()
return
def OnLoadMesh2(self, evt):
dlg = wx.FileDialog(self, "Choose a file", ".", "", "OBJ files (*.obj)|*.obj|OFF files (*.off)|*.off", wx.OPEN)
if dlg.ShowModal() == wx.ID_OK:
filename = dlg.GetFilename()
dirname = dlg.GetDirectory()
filepath = os.path.join(dirname, filename)
print dirname
(self.glcanvas.mesh2, self.glcanvas.mesh2Dist) = self.loadMesh(filepath)
self.glcanvas.bbox = self.glcanvas.mesh2.getBBox()
print "Mesh BBox: %s\n"%self.glcanvas.bbox
self.glcanvas.camera.centerOnBBox(self.glcanvas.bbox, theta = -math.pi/2, phi = math.pi/2)
#Now try to load in the distance matrix
if self.glcanvas.mesh2Dist.shape[0] > 0:
self.glcanvas.mesh2DistLoaded = True
self.glcanvas.Refresh()
dlg.Destroy()
return
def OnSaveScreenshot(self, evt):
dlg = wx.FileDialog(self, "Choose a file", ".", "", "*", wx.SAVE)
if dlg.ShowModal() == wx.ID_OK:
filename = dlg.GetFilename()
dirname = dlg.GetDirectory()
filepath = os.path.join(dirname, filename)
saveImageGL(self.glcanvas, filepath)
dlg.Destroy()
return
def OnExit(self, evt):
self.Close(True)
return
class MeshViewer(object):
def __init__(self, m1 = None, m2 = None):
app = wx.App()
frame = MeshViewerFrame(None, -1, 'MeshViewer', mesh1 = m1, mesh2 = m2)
frame.Show(True)
app.MainLoop()
app.Destroy()
if __name__ == '__main__':
m1 = None
m2 = None
if len(argv) >= 3:
m1 = argv[1]
m2 = argv[2]
viewer = MeshViewer(m1, m2)