lsst.display.matplotlib.matplotlib.AsinhNormalize Class Reference

Inheritance diagram for lsst.display.matplotlib.matplotlib.AsinhNormalize:

Public Member Functions
def	__init__ (self, minimum=0, dataRange=1, Q=8)

Public Attributes
	mapping

Detailed Description

Provide an asinh stretch for mtv()

Definition at line 806 of file matplotlib.py.

Constructor & Destructor Documentation

__init__()

def lsst.display.matplotlib.matplotlib.AsinhNormalize.__init__	(		self,
			minimum = 0,
			dataRange = 1,
			Q = 8
	)

Initialise an object able to carry out an asinh mapping

@param minimum   Minimum pixel value (default: 0)
@param dataRange Range of values for stretch if Q=0; roughly the
                 linear part (default: 1)
@param Q Softening parameter (default: 8)

See Lupton et al., PASP 116, 133

Reimplemented in lsst.display.matplotlib.matplotlib.AsinhZScaleNormalize.

Definition at line 808 of file matplotlib.py.

    def __init__(self, minimum=0, dataRange=1, Q=8):
        """Initialise an object able to carry out an asinh mapping
 
        @param minimum   Minimum pixel value (default: 0)
        @param dataRange Range of values for stretch if Q=0; roughly the
                         linear part (default: 1)
        @param Q Softening parameter (default: 8)
 
        See Lupton et al., PASP 116, 133
        """
        # The object used to perform the desired mapping
        self.mapping = afwRgb.AsinhMapping(minimum, dataRange, Q)
 
        vmin, vmax = self._getMinMaxQ()[0:2]
        if vmax*Q > vmin:
            vmax *= Q
        super().__init__(vmin, vmax)
 

Member Data Documentation

mapping

lsst.display.matplotlib.matplotlib.AsinhNormalize.mapping

Definition at line 819 of file matplotlib.py.

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The documentation for this class was generated from the following file:

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-4.0.1/Linux64/display_matplotlib/gbec6a3398f+06cf436103/python/lsst/display/matplotlib/matplotlib.py