Skip to content

053118 minor update #16

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
dwhan89 wants to merge 3 commits into
base: master
Choose a base branch
from
Open

053118 minor update #16

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
dfef77e
extent functionality
dwhan89 Mar 13, 2018
0fc95fe
Merge branch 'master' of github.com:ACTCollaboration/flipper
dwhan89 May 31, 2018
97946b0
switching to interp1d for interpolation stability
dwhan89 May 31, 2018
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 5 additions & 29 deletions flipper/liteMap.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -12,8 +12,6 @@

import astropy.wcs
import astropy.io.fits as pyfits
#import astropy.wcs as pywcs
#import pyfits
import flipper.fft as fftfast

import astLib
Expand All @@ -26,7 +24,7 @@
import healpy
import utils
import time
from scipy.interpolate import splrep,splev
from scipy.interpolate import interp1d
class gradMap:
"""
@brief Class describing gradient of a liteMap
Expand Down Expand Up @@ -111,19 +109,10 @@ def fillWithGaussianRandomField(self,ell,Cell,bufferFactor = 1):
iy, ix = np.mgrid[0:Ny,0:Nx]
modLMap[iy,ix] = np.sqrt(ly[iy]**2+lx[ix]**2)

s = splrep(ell,Cell,k=3)

ll = np.ravel(modLMap)
kk = splev(ll,s)
kk = interp1d(ell, Cell, bounds_error=False, fill_value=0.)(ll)
id = np.where(ll>ell.max())
kk[id] = 0.
#add a cosine ^2 falloff at the very end
#id2 = np.where( (ll> (ell.max()-500)) & (ll<ell.max()))
#lEnd = ll[id2]
#kk[id2] *= np.cos((lEnd-lEnd.min())/(lEnd.max() -lEnd.min())*np.pi/2)

#pylab.loglog(ll,kk)

kk[id] = 0

area = Nx*Ny*self.pixScaleX*self.pixScaleY
p = np.reshape(kk,[Ny,Nx]) /area * (Nx*Ny)**2
Expand Down Expand Up @@ -174,23 +163,10 @@ def fillWithGRFFromTemplate(self,twodPower,bufferFactor = 1):
if bufferFactor > 1:
ell = np.ravel(twodPower.modLMap)
Cell = np.ravel(twodPower.powerMap)
print ell
print Cell
s = splrep(ell,Cell,k=3)


ll = np.ravel(modLMap)
kk = splev(ll,s)


kk = interp1d(ell, Cell, bounds_error=False, fill_value=0.)(ll)
id = np.where(ll>ell.max())
kk[id] = 0.
# add a cosine ^2 falloff at the very end
# id2 = np.where( (ll> (ell.max()-500)) & (ll<ell.max()))
# lEnd = ll[id2]
# kk[id2] *= np.cos((lEnd-lEnd.min())/(lEnd.max() -lEnd.min())*np.pi/2)

# pylab.loglog(ll,kk)
kk[id] = 0

area = Nx*Ny*self.pixScaleX*self.pixScaleY
p = np.reshape(kk,[Ny,Nx]) /area * (Nx*Ny)**2
Expand Down