Installation
Dependencies
numpy, matplotlib, astropy, cartopy, geopy, h5py, pysofa
Installation
Before installing cavsiopy some of the dependencies need special installation instructions:
cartopy
If you are installing cartopy via pip (on Ubuntu/Debian) first libgeos-dev has to be on your system:
$ sudo apt -y install libgeos-dev
$ pip install -r requirements.txt
Follow the installation guide for other systems: https://scitools.org.uk/cartopy/docs/latest/installing.html
for installation of cartopy with conda:
$ conda install -c conda-forge cartopy
pysofa
pysofa is the Python wrapper for the Standards of Fundamental Astronomy (SOFA) written by Brian Kloppenborg. cavsiopy depends on pysofa for determining the ICRF to ITRF rotation matrix.
Here we follow <https://kloppenborg.net/blog/building-sofa-for-pysofa/> for pysofa installation.
$ sudo apt-get install python python-all-dev build-essential cmake
Download and extract SOFA from the official download page (https://www.iausofa.org/2010_1201_C/sofa_c-20101201.tar.gz)
After extracting SOFA, cd into the main directory and create a CMakeLists.txt file with the following content
cmake_minimum_required(VERSION 2.6)
project(sofa_c C)
# Set a few variables
set(LIBS ${LIBS} m)
# Extract all of the source files
file(GLOB_RECURSE C_SOURCE . src/"\\*".c)
# Build a shared library
add_library(sofa_c SHARED ${C_SOURCE})
# Now define the installation options
install(TARGETS sofa_c LIBRARY DESTINATION lib)
Save and close the file.
Execute the following comments:
$ cmake .
$ make
$ make install
$ sudo ldconfig
Now, we are ready to install pysofa:
pip install pysofa
you may need some more tweaking for the installation of pysofa. Possible solutions are listed below:
ModuleNotFoundError: No module named ‘pysofa_ctypes’
copy the contents of pysofa_ctypes.py to __init__.py, located in the installation directory for pysofa.
if __sofa_version < (2010, 12, 01):
SyntaxError: leading zeros in decimal integer literals are not permitted; use an 0o prefix for octal integers
find and replace all 2010, 12, 01 with 2010, 12, 1 in __init__.py
Other packages and requirements
pip install --no-deps astropy
pip install geopy
pip install -r requirements.txt
** Now, we are good to go! **
pip install cavsiopy
Credits: C. Eyiguler, Warren Holley, Andrew D. Howarth, Donald W. Danskin, Kuldeep Pandey, Carley Martin
Contributing: Glenn C. Hussey, Robert Gillies, Andrew W. Yau
License: GNU LESSER GENERAL PUBLIC LICENSE Version 3, 29 June 2007