101 lines
2.3 KiB
Python
101 lines
2.3 KiB
Python
from __future__ import absolute_import
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import __init__
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import sys
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import math
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import re
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import os
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import struct
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from util import util3d
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class meshFace(object):
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def __init__(self, v0, v1, v2):
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self.v = [v0, v1, v2]
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class mesh(object):
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def __init__(self):
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self.faces = []
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self.vertexes = []
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def addFace(self, v0, v1, v2):
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self.faces.append(meshFace(v0, v1, v2))
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self.vertexes.append(v0)
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self.vertexes.append(v1)
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self.vertexes.append(v2)
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def _createOrigonalVertexCopy(self):
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self.origonalVertexes = list(self.vertexes)
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for i in xrange(0, len(self.origonalVertexes)):
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self.origonalVertexes[i] = self.origonalVertexes[i].copy()
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self.getMinimumZ()
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def getMinimumZ(self):
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minv = self.vertexes[0].copy()
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maxv = self.vertexes[0].copy()
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for v in self.vertexes:
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minv.x = min(minv.x, v.x)
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minv.y = min(minv.y, v.y)
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minv.z = min(minv.z, v.z)
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maxv.x = max(maxv.x, v.x)
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maxv.y = max(maxv.y, v.y)
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maxv.z = max(maxv.z, v.z)
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self.min = minv
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self.max = maxv
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self.size = maxv - minv
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return self.min.z
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def getMaximum(self):
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return self.max
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def getMinimum(self):
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return self.min
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def getSize(self):
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return self.size
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def setRotateMirror(self, rotate, mirrorX, mirrorY, mirrorZ, swapXZ, swapYZ):
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rotate = rotate / 180.0 * math.pi
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scaleX = 1.0
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scaleY = 1.0
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scaleZ = 1.0
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if mirrorX:
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scaleX = -scaleX
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if mirrorY:
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scaleY = -scaleY
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if mirrorZ:
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scaleZ = -scaleZ
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mat00 = math.cos(rotate) * scaleX
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mat01 =-math.sin(rotate) * scaleY
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mat10 = math.sin(rotate) * scaleX
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mat11 = math.cos(rotate) * scaleY
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for i in xrange(0, len(self.origonalVertexes)):
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x = self.origonalVertexes[i].x
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y = self.origonalVertexes[i].y
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z = self.origonalVertexes[i].z
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if swapXZ:
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x, z = z, x
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if swapYZ:
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y, z = z, y
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self.vertexes[i].x = x * mat00 + y * mat01
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self.vertexes[i].y = x * mat10 + y * mat11
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self.vertexes[i].z = z * scaleZ
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for face in self.faces:
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v1 = face.v[0]
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v2 = face.v[1]
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v3 = face.v[2]
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face.normal = (v2 - v1).cross(v3 - v1)
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face.normal.normalize()
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minZ = self.getMinimumZ()
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minV = self.getMinimum()
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maxV = self.getMaximum()
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for v in self.vertexes:
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v.z -= minZ
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v.x -= minV.x + (maxV.x - minV.x) / 2
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v.y -= minV.y + (maxV.y - minV.y) / 2
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self.getMinimumZ()
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if __name__ == '__main__':
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for filename in sys.argv[1:]:
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stlModel().load(filename)
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