POPS generates images from an input file, containing bidimensional particles. These can be of circular, triangular or squared shape

It can draw figures in png and eps format.

#Example of usage

 pops -c test/conffinal.dat 5000 0.05 -b 10 -o test/saida.png -l "N=5000" -l "Yukawa" -l "Teste" 

This line will plot the data in the file test/conffinal.dat. It will generate 5000 circles, each with radius 0.05. The box will be from (-10, -10) to (10, 10), with three labels appearing on the right-upper corner, "N=5000", "Yukawa" and "Teste".

#Compiling

To compile POPS, one will need png and freetype libraries. On Ubuntu, these can be installed using

sudo apt-get install libpng12-dev libfreetype6-dev

Also, one will need a modern c++ compiler, with c++11 features. The makefile uses g++, but one may change this by modifying the CC variable on makefile.

After resolving these dependencies, one can simply use make to build and test POPS. If everything went OK, two images will be created on test/

make
make run

To install, super user mode is needed. Once again, one may use make, running sudo.

sudo make install

#Input File

For each kind of particle, POPS expects a two-column file, containing the particles' position and no header. See the file conffinal.dat on test to an example of input file

#Runtime Options

 -h

Show help dialog

 -s filename Quantidade

Add a new kind of square, with Quantity squares. To each square, there must be five lines on the file.

 -t filename Quantidade

Add a new kind of triangle, with Quantity triangles. To each triangle, there must be four lines on the file.

 -c filename Quantidade Radius

Add a new kind of circle, with Quantity circles. To each circle, there must be one line on the file.

 -o Name

Output filename. If the extension is set to png, it will write a png. Otherwise, will write a eps.

 -f Frame

Chooses the resolution of the output file. If this flag is not set, the resolution will be 1920x1920.

 -b Box

Box size. If unset, the value will be 10.

 -r Distance

Draw a line between particle centers' if they are closer than Distance.

 -e

The standard is having the box centred on (0,0). If you wish its left-down corner to be on (0,0), set this flag.

 -w width

Chooses linewidth, relative to box size. The standard is 0.1 box.

 -l name

Adds a new label on the left-up side.

 -fs size

Selects the new font size.