def testLinear(self):
"""Test using a specified linear stretch"""
rgbImage = rgb.LinearMapping(-8.45, 13.44).makeRgbImage(self.images[R])
if display:
rgb.displayRGB(rgbImage)
def __init__(self, vmin=None, vmax=None, clip=False, minimum=0, dataRange=1, Q=8):
mpColors.Normalize.__init__(self, vmin, vmax, clip)
if True:
self.mapping = afwRgb.AsinhMapping(minimum, dataRange, Q)
else:
self.mapping = afwRgb.LinearMapping(minimum, minimum+dataRange, Q)
def testLinearMinMax(self):
"""Test using a min/max linear stretch
N.b. also checks that an image passed to the ctor is used as the default in makeRgbImage()
"""
rgbImage = rgb.LinearMapping(image=self.images[R]).makeRgbImage()
if display:
rgb.displayRGB(rgbImage)
def __init__(self, minimum=0, maximum=1):
"""Initialise an object able to carry out a linear mapping
@param minimum Minimum value to display
@param maximum Maximum value to display
"""
# The object used to perform the desired mapping
self.mapping = afwRgb.LinearMapping(minimum, maximum)
super().__init__(self.mapping.minimum[0], self.mapping.maximum)
def __init__(self, vmin=None, vmax=None, clip=False, minimum=0, maximum=1):
Normalize.__init__(self, vmin, vmax, clip)
self.mapping = afwRgb.LinearMapping(minimum, maximum)
