OpenDX

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The OpenDX software is a powerful program for visualising multi-dimensional data.

How to use dx

Run dx, and then in the Data explorer or DE.

• Click on Edit Visual Programs....
• Select the map.net program created by relax,

Now in the Visual Program Editor or VPE.

• Select the menu entry Execute->Execute on change.

That's it.

You now have a 3D frame, but nothing in it. Therefore the contour levels must be too low or high. From the map file, the values are in the hundreds of thousands.

Then:

• In the main program window, double click on the Isosurface elements.
• Change the values until you see surfaces. In the first the value is 500. I changed this to 500,000. Multiply all by 1000.
• In the second, 100 -> 100000.
• In the third, 20 -> 20000.
• In the last, 7 -> 7000.

This should maybe be performed by the dx.map user function, determining reasonable contour levels.

With a bit of zooming, clicking on File -> Save image in the Surface window, allowing rendering, and outputting to a large TIFF file, save current, then apply.

Note that for a good resolution plot, you will need many more increments. Using the lower and upper dx.map arguments will be useful to zoom into the space.

See also

• Install_dx
• Dx_map