Simplify build, update README and add example

README.md

@@ -19,4 +19,29 @@ To build:
 
 To run (in build):
 
-    ./simple -gf saarland.gl
+    ./simple -gf resources/test.gl
+
+gl format:
+
+```
+number of nodes
+number of edges
+X Y of node1
+...
+X Y of nodeN
+nodeFrom nodeTo width color
+...
+nodeFrom nodeTo width color
+```
+
+Example:
+
+Two nodes: node0 (1, 1) and node1 (2, 2). One arc (node0, node1) of 1px width with color 1
+
+```
+2
+1
+1 1
+2 2
+0 1 1 2
+```

build.sh

@@ -1,5 +1,7 @@
-#!/usr/bin/sh
-mkdir build
-cd build
-cmake ../
-make
+#!/bin/bash
+
+cd src
+
+g++ -W -Wall --std=c++11 simplestGraphRendering.cpp -o simplestGraphRendering -lGL -lglut -lm -lX11 -lglfw -lGLEW
+
+./simplestGraphRendering -gf ../resources/test.gl 

resources/test.gl

@@ -0,0 +1,11 @@
+4
+4
+1 1
+2 2
+1 2
+2 5
+0 1 10 1
+0 2 10 2
+0 3 10 3
+3 4 10 4
+

src/simplestGraphRendering.cpp

@@ -12,6 +12,7 @@
 #include <memory>
 #include <map>
 #include <list>
+#include <cmath>
 
 typedef unsigned int uint;