Difference between revisions of "OpenDX"

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The [http://opendx.org/ OpenDX software is a powerful program for visualising multi-dimensional data].
 
The [http://opendx.org/ OpenDX software is a powerful program for visualising multi-dimensional data].
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== See also ==
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* [[Install_dx]]
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* [[Dx_map]]
  
 
== How to use dx ==
 
== How to use dx ==
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With a bit of zooming, clicking on <code>File -> Save image</code> in the <code>Surface</code> window, <code>allowing rendering</code>, and outputting to a large TIFF file, <code>save current</code>, then <code>apply</code>.
 
With a bit of zooming, clicking on <code>File -> Save image</code> in the <code>Surface</code> window, <code>allowing rendering</code>, and outputting to a large TIFF file, <code>save current</code>, then <code>apply</code>.
 
An example image cropped and converted to PNG in the GIMP at https://gna.org/bugs/download.php?file_id=20641.
 
  
 
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.
 
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 ==
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[[Category:OpenDX]]
* [[Install_dx]]
 
* [[Dx_map]]
 
 
 
[[Category:Software]]
 

Latest revision as of 18:50, 21 October 2020

This article is a stub. Please help to improve the relax wiki by expanding the article.

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

See also

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.