Author Topic: What does the color mean in ldos with isosurface type?  (Read 3896 times)

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Offline beauyy

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I drew the ldos of some devices. Some of ldos is red, and some is blue. What are the differences between the red and blue colors?
« Last Edit: April 1, 2015, 05:03 by beauyy »

Offline beauyy

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Re: What does the color mean in ldos with isosurface type?
« Reply #1 on: April 1, 2015, 05:05 »
Can anybody answer this question?

Offline kstokbro

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Re: What does the color mean in ldos with isosurface type?
« Reply #2 on: April 1, 2015, 10:26 »
Which version of VNL are you using?
In the latest versions we have a color bar which relates the color to a value. Without the color bar and no other information about your system and VNL setup it is difficult to answer your question.

Offline beauyy

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Re: What does the color mean in ldos with isosurface type?
« Reply #3 on: May 22, 2015, 10:40 »
I am using VNL 2014.2 to show the ldos. The color map I am using is HSV type, the isovalue is set as 0.01. I have attached the LDOS as below. I still don't know what the color mean in LDOS with isosurface type. I can not find the color bar .

Offline Anders Blom

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Re: What does the color mean in ldos with isosurface type?
« Reply #4 on: May 22, 2015, 16:21 »
For an isosurface of a real quantity like electron density, the color doesn't mean anything, except in cases where the grid contains negative and positive values, in which case (optionally) the color will distinguish areas of +X and -X, where the isosurface itself maps areas of the grid where the absolute value is X (the isovalue chosen).

For complex grids, the color indicates the phase.