1 from __future__ import absolute_import
7 numpy.seterr(all='ignore')
9 class printableObject(object):
12 self._position = numpy.array([0.0, 0.0])
13 self._matrix = numpy.matrix([[1,0,0],[0,1,0],[0,0,1]], numpy.float64)
14 self._transformedMin = None
15 self._transformedMax = None
16 self._transformedSize = None
17 self._boundaryCircleSize = None
18 self._drawOffset = None
22 ret = printableObject()
23 ret._matrix = self._matrix.copy()
24 ret._transformedMin = self._transformedMin.copy()
25 ret._transformedMax = self._transformedMin.copy()
26 ret._transformedSize = self._transformedSize.copy()
27 ret._boundaryCircleSize = self._boundaryCircleSize
28 ret._drawOffset = self._drawOffset.copy()
29 for m in self._meshList[:]:
31 m2.vertexes = m.vertexes
32 m2.vertexCount = m.vertexCount
39 self._meshList.append(m)
42 def _postProcessAfterLoad(self):
43 for m in self._meshList:
47 def applyMatrix(self, m):
51 def processMatrix(self):
52 self._transformedMin = numpy.array([999999999999,999999999999,999999999999], numpy.float64)
53 self._transformedMax = numpy.array([-999999999999,-999999999999,-999999999999], numpy.float64)
54 self._boundaryCircleSize = 0
56 for m in self._meshList:
57 transformedVertexes = m.getTransformedVertexes()
58 transformedMin = transformedVertexes.min(0)
59 transformedMax = transformedVertexes.max(0)
60 for n in xrange(0, 3):
61 self._transformedMin[n] = min(transformedMin[n], self._transformedMin[n])
62 self._transformedMax[n] = max(transformedMax[n], self._transformedMax[n])
64 #Calculate the boundary circle
65 transformedSize = transformedMax - transformedMin
66 center = transformedMin + transformedSize / 2.0
67 boundaryCircleSize = round(math.sqrt(numpy.max(((transformedVertexes[::,0] - center[0]) * (transformedVertexes[::,0] - center[0])) + ((transformedVertexes[::,1] - center[1]) * (transformedVertexes[::,1] - center[1])) + ((transformedVertexes[::,2] - center[2]) * (transformedVertexes[::,2] - center[2])))), 3)
68 self._boundaryCircleSize = max(self._boundaryCircleSize, boundaryCircleSize)
69 self._transformedSize = self._transformedMax - self._transformedMin
70 self._drawOffset = (self._transformedMax + self._transformedMin) / 2
71 self._drawOffset[2] = self._transformedMin[2]
72 self._transformedMax -= self._drawOffset
73 self._transformedMin -= self._drawOffset
75 def getPosition(self):
77 def setPosition(self, newPos):
78 self._position = newPos
83 return self._transformedMax
85 return self._transformedMin
87 return self._transformedSize
88 def getDrawOffset(self):
89 return self._drawOffset
90 def getBoundaryCircle(self):
91 return self._boundaryCircleSize
93 def mirror(self, axis):
94 matrix = [[1,0,0], [0, 1, 0], [0, 0, 1]]
95 matrix[axis][axis] = -1
96 self.applyMatrix(numpy.matrix(matrix, numpy.float64))
100 numpy.linalg.norm(self._matrix[::,0].getA().flatten()),
101 numpy.linalg.norm(self._matrix[::,1].getA().flatten()),
102 numpy.linalg.norm(self._matrix[::,2].getA().flatten())], numpy.float64);
104 def setScale(self, scale, axis, uniform):
105 currentScale = numpy.linalg.norm(self._matrix[::,axis].getA().flatten())
106 scale /= currentScale
110 matrix = [[scale,0,0], [0, scale, 0], [0, 0, scale]]
112 matrix = [[1.0,0,0], [0, 1.0, 0], [0, 0, 1.0]]
113 matrix[axis][axis] = scale
114 self.applyMatrix(numpy.matrix(matrix, numpy.float64))
116 def setSize(self, size, axis, uniform):
117 scale = self.getSize()[axis]
122 matrix = [[scale,0,0], [0, scale, 0], [0, 0, scale]]
124 matrix = [[1,0,0], [0, 1, 0], [0, 0, 1]]
125 matrix[axis][axis] = scale
126 self.applyMatrix(numpy.matrix(matrix, numpy.float64))
128 def resetScale(self):
129 x = 1/numpy.linalg.norm(self._matrix[::,0].getA().flatten())
130 y = 1/numpy.linalg.norm(self._matrix[::,1].getA().flatten())
131 z = 1/numpy.linalg.norm(self._matrix[::,2].getA().flatten())
132 self.applyMatrix(numpy.matrix([[x,0,0],[0,y,0],[0,0,z]], numpy.float64))
134 def resetRotation(self):
135 x = numpy.linalg.norm(self._matrix[::,0].getA().flatten())
136 y = numpy.linalg.norm(self._matrix[::,1].getA().flatten())
137 z = numpy.linalg.norm(self._matrix[::,2].getA().flatten())
138 self._matrix = numpy.matrix([[x,0,0],[0,y,0],[0,0,z]], numpy.float64)
142 transformedVertexes = self.getTransformedVertexes()
143 minZvertex = transformedVertexes[transformedVertexes.argmin(0)[2]]
146 for v in transformedVertexes:
147 diff = v - minZvertex
148 len = math.sqrt(diff[0] * diff[0] + diff[1] * diff[1] + diff[2] * diff[2])
151 dot = (diff[2] / len)
157 rad = -math.atan2(dotV[1], dotV[0])
158 self._matrix *= numpy.matrix([[math.cos(rad), math.sin(rad), 0], [-math.sin(rad), math.cos(rad), 0], [0,0,1]], numpy.float64)
159 rad = -math.asin(dotMin)
160 self._matrix *= numpy.matrix([[math.cos(rad), 0, math.sin(rad)], [0,1,0], [-math.sin(rad), 0, math.cos(rad)]], numpy.float64)
163 transformedVertexes = self.getTransformedVertexes()
164 minZvertex = transformedVertexes[transformedVertexes.argmin(0)[2]]
167 for v in transformedVertexes:
168 diff = v - minZvertex
169 len = math.sqrt(diff[1] * diff[1] + diff[2] * diff[2])
172 dot = (diff[2] / len)
179 rad = math.asin(dotMin)
181 rad = -math.asin(dotMin)
182 self.applyMatrix(numpy.matrix([[1,0,0], [0, math.cos(rad), math.sin(rad)], [0, -math.sin(rad), math.cos(rad)]], numpy.float64))
184 def scaleUpTo(self, size):
185 vMin = self._transformedMin
186 vMax = self._transformedMax
188 scaleX1 = (size[0] / 2 - self._position[0]) / ((vMax[0] - vMin[0]) / 2)
189 scaleY1 = (size[1] / 2 - self._position[1]) / ((vMax[1] - vMin[1]) / 2)
190 scaleX2 = (self._position[0] + size[0] / 2) / ((vMax[0] - vMin[0]) / 2)
191 scaleY2 = (self._position[1] + size[1] / 2) / ((vMax[1] - vMin[1]) / 2)
192 scaleZ = size[2] / (vMax[2] - vMin[2])
193 scale = min(scaleX1, scaleY1, scaleX2, scaleY2, scaleZ)
195 self.applyMatrix(numpy.matrix([[scale,0,0],[0,scale,0],[0,0,scale]], numpy.float64))
197 def split(self, callback):
199 for oriMesh in self._meshList:
200 ret += oriMesh.split(callback)
204 def __init__(self, obj):
210 def _addFace(self, x0, y0, z0, x1, y1, z1, x2, y2, z2):
212 self.vertexes[n][0] = x0
213 self.vertexes[n][1] = y0
214 self.vertexes[n][2] = z0
216 self.vertexes[n][0] = x1
217 self.vertexes[n][1] = y1
218 self.vertexes[n][2] = z1
220 self.vertexes[n][0] = x2
221 self.vertexes[n][1] = y2
222 self.vertexes[n][2] = z2
223 self.vertexCount += 3
225 def _prepareFaceCount(self, faceNumber):
226 #Set the amount of faces before loading data in them. This way we can create the numpy arrays before we fill them.
227 self.vertexes = numpy.zeros((faceNumber*3, 3), numpy.float32)
228 self.normal = numpy.zeros((faceNumber*3, 3), numpy.float32)
231 def _calculateNormals(self):
232 #Calculate the normals
233 tris = self.vertexes.reshape(self.vertexCount / 3, 3, 3)
234 normals = numpy.cross( tris[::,1 ] - tris[::,0] , tris[::,2 ] - tris[::,0] )
235 lens = numpy.sqrt( normals[:,0]**2 + normals[:,1]**2 + normals[:,2]**2 )
240 n = numpy.zeros((self.vertexCount / 3, 9), numpy.float32)
244 self.normal = n.reshape(self.vertexCount, 3)
245 self.invNormal = -self.normal
247 def _vertexHash(self, idx):
248 v = self.vertexes[idx]
249 return int(v[0] * 100) | int(v[1] * 100) << 10 | int(v[2] * 100) << 20
251 def _idxFromHash(self, map, idx):
252 vHash = self._vertexHash(idx)
254 if numpy.linalg.norm(self.vertexes[i] - self.vertexes[idx]) < 0.001:
257 def getTransformedVertexes(self, applyOffsets = False):
259 pos = self._obj._position.copy()
261 pos[2] = self._obj.getSize()[2] / 2
262 offset = self._obj._drawOffset.copy()
263 offset[2] += self._obj.getSize()[2] / 2
264 return (numpy.matrix(self.vertexes, copy = False) * numpy.matrix(self._obj._matrix, numpy.float32)).getA() - offset + pos
265 return (numpy.matrix(self.vertexes, copy = False) * numpy.matrix(self._obj._matrix, numpy.float32)).getA()
267 def split(self, callback):
271 for idx in xrange(0, self.vertexCount):
273 callback(idx * 100 / self.vertexCount)
274 vHash = self._vertexHash(idx)
275 if vHash not in vertexMap:
276 vertexMap[vHash] = []
277 vertexMap[vHash].append(idx)
278 vertexToFace.append([])
281 for idx in xrange(0, self.vertexCount, 3):
283 callback(idx * 100 / self.vertexCount)
284 f = [self._idxFromHash(vertexMap, idx), self._idxFromHash(vertexMap, idx+1), self._idxFromHash(vertexMap, idx+2)]
285 vertexToFace[f[0]].append(idx / 3)
286 vertexToFace[f[1]].append(idx / 3)
287 vertexToFace[f[2]].append(idx / 3)
292 for idx in xrange(0, len(faceList)):
298 while len(todoList) > 0:
300 meshFaceList.append(idx)
301 for n in xrange(0, 3):
302 for i in vertexToFace[faceList[idx][n]]:
307 obj = printableObject()
308 obj._matrix = self._obj._matrix.copy()
310 m._prepareFaceCount(len(meshFaceList))
311 for idx in meshFaceList:
312 m.vertexes[m.vertexCount] = self.vertexes[faceList[idx][0]]
314 m.vertexes[m.vertexCount] = self.vertexes[faceList[idx][1]]
316 m.vertexes[m.vertexCount] = self.vertexes[faceList[idx][2]]
318 obj._postProcessAfterLoad()