def getTransformFromNumpy(mat):
'''
Given a numpy 4x4 array, return a vtkTransform.
'''
m = vtk.vtkMatrix4x4()
for r in xrange(4):
for c in xrange(4):
m.SetElement(r, c, mat[r][c])
t = vtk.vtkTransform()
t.SetMatrix(m)
return t
def getTransformFromNumpy(mat):
'''
Given a numpy 4x4 array, return a vtkTransform.
'''
m = vtk.vtkMatrix4x4()
for r in xrange(4):
for c in xrange(4):
m.SetElement(r, c, mat[r][c])
t = vtk.vtkTransform()
t.SetMatrix(m)
return t
def getTransformFromAxes(xaxis, yaxis, zaxis):
t = vtk.vtkTransform()
m = vtk.vtkMatrix4x4()
axes = np.array([xaxis, yaxis, zaxis]).transpose().copy()
vtk.vtkMath.Orthogonalize3x3(axes, axes)
for r in xrange(3):
for c in xrange(3):
m.SetElement(r, c, axes[r][c])
t.SetMatrix(m)
return t
def getTransformFromAxes(xaxis, yaxis, zaxis):
t = vtk.vtkTransform()
m = vtk.vtkMatrix4x4()
axes = np.array([xaxis, yaxis, zaxis]).transpose().copy()
vtk.vtkMath.Orthogonalize3x3(axes, axes)
for r in xrange(3):
for c in xrange(3):
m.SetElement(r, c, axes[r][c])
t.SetMatrix(m)
return t