VKLlib

This is a C++ library of functions to perform various lensing tasks, e.g. define a mass model, define a source, produce lensed images, etc.

Getting Started

Prerequisites

There is a number of third-party libraries required to install vkllib, namely: cfitsio, CCfits, gmp, CGAL, and *jsoncpp. In additon, cmake and autotools (the autoreconf command) are required to perform the installation.

Installing

To install vkllib one needs to call `autoreconf -i' and then the usual './configure, make, make install'. If the required third-party libraries listed above are not installed in a standard system location, they will need to be explicitly provided. This is possible via '--with-<library_name>=/path/to/library' options passed to the configure script. An example call to the configure script could look like the following:

./configure --prefix=/path/to/installation/of/vkl_lib --with-cfitsio=/path/to/libraries/cfitsio --with-CCfits=/path/to/libraries/CCfits --with-gmp=/path/to/libraries/gmp --with-CGAL=/path/to/libraries/CGAL --with-jsoncpp=/path/to/libraries/jsoncpp

Finalizing

For convenience, in order to be able to compile programs that use gerlumphpp without the need to explicitly specify the path to the headers and the libarry (e.g. the -I, -L, and -Wl,-rpath options to the g++ compiler and linker), one can define the following environment variables:

CPATH=$CPATH:/path/to/vkllib/include
LIBRARY_PATH=$LIBRARY_PATH:/path/to/installation/of/vkllib/lib
LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/path/to/installation/of/vkllib/lib

For the bash shell, one can export these variables from within the .bashrc file.

Authors

Georgios Vernardos ( github - homepage )