Woolz Image Processing
Version 1.7.5

WlzExtFFDefGrdExportVTK [h] [m #] [o<output file>] [input file]
h  Prints usage information. 
m  Value multiplication factor. 
o  Output file. 
ID Character  Feature  j  Determinant of the Jacobian matrix (default)  e  eigen system 
POINT_DATA <n> SCALARS jacobian float LOOKUP_TABLE default <j0> ...For the eigen system input object must contain both eigen values and eigen vectors; the POINT_DATA output is of the form:"
POINT_DATA <n> FIELD eigen_system float 1 6 <l00> <l01> <l02> <e001> ... <e012> ...Here:
n  number of points 
j0  Jacobian of at the first point 
l0i  i'th eigen value at the first point 
e0ij  j'th component of the i'th eigen vector at the first point 
WlzExtFFDefGrdExportVTK o features.vtk features.wlzReads tensor deformation gradient features from features.wlz and writes the Jacobians to an ASCII VTK file features.vtk.