Set color axis limits for plots.
The argument limits should be a 2 element vector specifying the lower and upper limits to assign to the first and last value in the colormap. Values outside this range are clamped to the first and last colormap entries.
If limits is 'auto', then automatic colormap scaling is applied, whereas if limits is 'manual' the colormap scaling is set to manual.
Called without any arguments to current color axis limits are returned.
If an axes handle is passed as the first argument, then operate on this axes rather than the current axes.