lsst.shapelet.tractor Namespace Reference

Functions
def	registerRadialProfiles ()
def	evaluateRadial (basis, r, sbNormalize=False, doComponents=False)
def	integrateNormalizedFluxes (maxRadius=20.0, nSteps=5000)
	After normalizing by surface brightness at r=1 r_e, integrate the profiles to compare relative fluxes between the true profiles and their approximations. More...
def	plotSuite (doComponents=False)

Function Documentation

evaluateRadial()

def lsst.shapelet.tractor.evaluateRadial	(		basis,
			r,
			sbNormalize = False,
			doComponents = False
	)

Plot a single-element MultiShapeletBasis as a radial profile.

Definition at line 90 of file tractor.py.

integrateNormalizedFluxes()

def lsst.shapelet.tractor.integrateNormalizedFluxes	(		maxRadius = 20.0,
			nSteps = 5000
	)

After normalizing by surface brightness at r=1 r_e, integrate the profiles to compare relative fluxes between the true profiles and their approximations.

Parameters

[in]	maxRadius	Maximum radius to integrate the profile, in units of r_e.
[in]	nSteps	Number of concrete points at which to evaluate the profile to do the integration (we just use the trapezoidal rule).

Definition at line 113 of file tractor.py.

plotSuite()

def lsst.shapelet.tractor.plotSuite

(

doComponents = False

)

Plot all the profiles defined in this module together: true exp and dev, the SDSS softended/truncated
lux and luv, and the multi-Gaussian approximations to all of these.

To plot the individual Gaussians that form the multi-Gaussian approximations, pass doComponents=True.

Returns a tuple of (figure, axes), where 'figure' is the matplotlib figure that contains the plot,
and axes is a 2x4 NumPy array of matplotlib axes objects

Definition at line 134 of file tractor.py.

registerRadialProfiles()

def lsst.shapelet.tractor.registerRadialProfiles

(

)

Register the pickled profiles in the data directory with the RadialProfile singleton registry.

This should only be called at import time by this module; it's only a function to avoid polluting
the module namespace with all the local variables used here.

Definition at line 48 of file tractor.py.