Changes

Dx map

110 bytes added, 18:42, 6 November 2015

→‎How to use dx: Formatting using the <code> tag.

== How to use dx ==

* Run '<code>dx'</code>,~~In teh~~ and then in the '''Data explorer''' or '''DE'''.* Click on ~~'''~~<code>Edit Visual Programs...~~'''~~</code>.* Select the <code>map.net </code> program created by relax,

Now in the ~~'''~~<code>Visual Program Editor~~'''~~ </code> or ~~'''~~<code>VPE~~'''~~</code>.* Select the menu entry '<code>Execute->Execute on change'</code>.

That's it.

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

Then:

* In the main program window, double click on the '<code>Isosurface elements'</code>.

* 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.

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

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 ~~<br>~~https://gna.org/bugs/download.php?file_id=20641.

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

== Example images ==

Bugman

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