ManualInterval#

class astropy.visualization.ManualInterval(vmin=None, vmax=None)[source]#

Interval based on user-specified values.

Parameters:

vminfloat, optional: The minimum value in the scaling. Defaults to the image minimum (ignoring NaNs)
vmaxfloat, optional: The maximum value in the scaling. Defaults to the image maximum (ignoring NaNs)

Methods Summary

`__call__`(values[, clip, out])	Transform values using this interval.
`get_limits`(values)	Return the minimum and maximum value in the interval based on the values provided.

Methods Documentation

__call__(values, clip=True, out=None)#

Transform values using this interval.

The vmin and vmax values are determined by the get_limits method.

The following transformation is then applied to the values:

\[{\rm result} = \frac{{\rm values} - v_{\rm min}} {v_{\rm max} - v_{\rm min}}\]

If clip is True (default), the result is then clipped to the [0:1] range.

Parameters:

valuesarray_like: The input values.
clipbool, optional: If True (default), values outside the [0:1] range are clipped to the [0:1] range.
outndarray, optional: If specified, the output values will be placed in this array (typically used for in-place calculations).

Returns:

get_limits(values)[source]#

Return the minimum and maximum value in the interval based on the values provided.

Parameters:

Returns: