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Project Description

Simple python code to read and work with Mangle masks.

The underlying code is in C for speed, and is based on some C++ code written by Martin White. Martin has posted his C++ code at

Currently supports ascii mangle polygon files, with and without pixelization. The code works in python2 and python3

Authors: Erin Sheldon. Long double support added by Eli Rykoff.


import pymangle

# read a mangle polygon file

# test an ra,dec point against the mask
good = m.contains(200.0, 0.0)

# test arrays of ra,dec points against the mask
ra=numpy.array([200.0, 152.7])
dec=numpy.array([0.0, -15.0])
good = m.contains(ra, dec)

# get the polygon ids
ids = m.polyid(ra,dec)

# get the weights
weights = m.weight(ra,dec)

# get poth polyids and weights
ids, weights = m.polyid_and_weight(ra, dec)

# generate random points
ra_rand, dec_rand = m.genrand(1000)

# generate randoms from the mask and with the additional constraint that they
# are within the specified rectangle.  This speeds things up if your mask is
# relatively small compared to the full sphere; choose the box just big enough
# to contain the mask.

ra_rand, dec_rand = m.genrand_range(1000,ra_min,ra_max,dec_min,dec_max)

# get the polygon weights
weights = m.weights

# read in a new set of weights

# set the weights

m.weights = weight_array

build and install python library

python install --prefix=/some/path
Release History

Release History


This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
pymangle-0.9.0.tar.gz (26.5 kB) Copy SHA256 Checksum SHA256 Source Aug 19, 2016

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