Expand Taurus with FFT solver

The current version is consistent with the features and results in the VIS22 paper. It means code doesn't include the FFT solver.

How to use Taurus

cd build
./compile.sh
./main filename

Start

To use Taurus, you just need to include this library and define a graph, and then you can construct the structure of the graph by input file or customize the topology of the graph.

graph g
g.initgraph(filename)

Before drawing a graph, you can choose the initial layout of the graph. The library provides two initial layouts: random layout (default)、PivotMDS layout. Besides, You can use customized coordinates from the input file as initial coordinates.

g.initRandomPosition
g.initPivotMDSPosition
g.initPosition(filename)

Taurus implements six graph layout methods:SM, FDP, LinLog, Maxent, FMMM, BSM. You can use these methods by inputting a graph by calling the corresponding interface.

SMLayout(g)
FDPLayout(g)
...

The library also supports customizing one's own graph layout. You can set the force model and pass it to Layout interface.

Layout(g,force)

Layout results are stored in g as coordinates. The library provides an interface to draw the layout results as svg.

g.drawSVG(filename,method-name)