VariablePSF

class romanisim.psf.VariablePSF(corners, psf)

Bases: object

Spatially variable PSF wrapping GalSim profiles.

Linearly interpolates between four corner PSF profiles by summing weighted GalSim PSF profiles.

Methods Summary

at_position(x, y)

Instantiate a PSF profile at (x, y).

Methods Documentation

at_position(x, y)

Instantiate a PSF profile at (x, y).

Linearly interpolate between the four corners to obtain the PSF at this location.

Parameters:

xfloat

x position

yfloat

y position

Returns:

GalSim profile representing PSF at (x, y).