<BR><SPAN lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: ËÎÌå; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">All,<BR>I currently need to display a diffusion tensor image. I have get a tensor array of the image in Matlab6.5 and save the tensor data in the format of *.png . I don¡¯t know how to express the tensor field of the image in vtk. I have looked for the documents of the vtk and found two class named as vktTensor and vtkDataReader respectively, but I don¡¯t know how to use it to reader the vtkTensor and express it. I know there is a correct way to do this, I just can't find a better way to do so on the net. Any suggestions or pointers to examples would be greatly appreciated.<BR>Thanks in advance,</SPAN><br><br><a href='http://mail.21cn.com/huodong/0510/sfmail/index.html' target='_blank'><img src='http://mail.21cn.com/ads/Channel/sfycx_540x60.gif' width='540' height='60' border='0'></a><br>