Operating Aviz - Color Setting
One has many options for coloring the spins using a dialog box that will pop up after clicking on Elements --> Spins at the menu bar.
The first field in the Set Spins dialog box is Type. Note that at xyz files each spin (each row) is designated by a one or two-character string determining its 'type'. For instance in this example all the spins are labeled as 'Sp', and in this one they are labeled as various 'types' like 'd', 'Sc', 'T' etc. The Type field allows assigning different properties of color and size to spins labeled by different strings. All the 'types' defined in the corresponding xyz file appear at the Type field.
When a certain 'type' of spins is selected in this field, all the color and size properties determined in the dialog box (more details in this page) will be assign only to spins of the selected 'type'.
Take a look at this example showing the steps for obtaining a rendering of an xyz file containing different 'types' of spins.
One can choose the size and thickness of the spins and press on Apply (the Rel.Render Size option is disabled if the determined style in the aviz interface is 'Lines').
At the Color Criterion field one can choose the style for coloring the array, simply by marking the desired criterion:
Type - all the spins are colored in the same color determined in the Set Colors panel opened when the Set Color button is pressed.
The Set Colors panel is in a way a palette in which the color is determined by mixing three basic colors. When a desired color is attained, press Apply to watch the array colored with the new color. Press Done to dismiss the panel. If Cancel is pressed instead, the new color is not retained.
Position - allows color gradient along an axis specified (example - color gradient along the x axis). The edge colors of the gradient can be specified at the Set Colors panel, again, opened by pressing the Set Color button. Don't forget to press Apply or Done.
Property - each one of the numbers determines some other property (energy, velocity etc) for coloring the array according to the additional columns provided at the xyz file. The numbers at the Property field correspond to the additional columns respectively. In spin visualization case the three columns determining the orientation of spins are considered as additional columns. Hence in this case, marking 3, like in the example below, is good for distinguishing spins according to their inclination, since the spins are colored according to their z - component magnitude.
For instance in the spins are colored according to their z - component, namely spins with large z component tend to be bright pink and spins with small z component tend to be blue.