Left mouse button 'click and drag' rotates the 3D plot.

Tensor Field Visualization

You can use this applet to render a 4th-order tensor field given the tensor coefficients.
Tensor field coefficients:

Instructions

Technical details: This program displays a 4th-order field of symmetric Cartesian tensors. Copy and paste in the input textbox the tensor coefficients in the following order: First type the size-x and the size-y of the field and then the coefficients of the tensor at the lower left voxel (0,0) in the order D400, D040 D004, D220, D022, D202, D211, D121, D112, D310, D301, D130, D031, D103, D013, and continue with the coefficients of the voxel above (0,1) etc. The coefficients must be separated by a "space" or a "return" character.

Generate input file: You can generate an input text file in the previously described format using the following MATLAB code:
f=fopen('out.txt','wt');
fprintf(f,'%d %d ',size_x,size_y);
for x=1:size_x
for y=1:size_y
for coef=1:15
fprintf(f,'%.7f ',coefficient(x,y,coef));
end
end
end
fclosef(f);
Then you can copy the produced text and paste it into the input text box above, in order to visualize the tensor field.

System requirements: Please use Internet Explorer (Microsoft) with the latest JAVA platform installed.

Disclaimer: You can use this free software for non commercial research purposes and demonstration only without licensing fees and is provided without guarantee or warrantee expressed or implied. This program is NOT in the public domain.

For questions please feel free to contact me: Angelos Barmpoutis, abarmpou [at] cise [dot] ufl [dot] edu