Readme more readable, added virtualenv explanation.

.gitignore

@@ -1,4 +1,5 @@
 *.pyc
 .idea/
 tests/tmp/
-build/
+build/
+venv/

README.md

@@ -1,15 +1,13 @@
-FlatCAM BETA (c) 2019 - by Marius Stanciu
+# FlatCAM BETA (c) 2019 - by Marius Stanciu
+
 Based on FlatCAM: 
 2D Computer-Aided PCB Manufacturing by (c) 2014-2016 Juan Pablo Caram
-=====================================================================
 
 FlatCAM is a program for preparing CNC jobs for making PCBs on a CNC router.
 Among other things, it can take a Gerber file generated by your favorite PCB
 CAD program, and create G-Code for Isolation routing.
 
-=====================================================================
-
--------------------------- Installation instructions ----------------
+## Installation instructions
 
 Works with Python version 3.5 or greater and PyQt5.
 More on the YouTube channel: https://www.youtube.com/playlist?list=PLVvP2SYRpx-AQgNlfoxw93tXUXon7G94_
@@ -21,7 +19,20 @@ Menu -> Help -> About FlatCAM -> Programmers -> Marius Stanciu
 - Download sources from: https://bitbucket.org/jpcgt/flatcam/downloads/
 - Unzip them on a HDD location that your user has permissions for.
 
-1.Windows
+### Linux Virtual Env
+
+1. Clone this repository.
+2. Install these packages from your distro's repository.
+On Ubuntu:
+`sudo apt install libfreetype6 libfreetype6-dev libgeos-dev libpng-dev libspatialindex-dev qt5-style-plugins python3-dev python3-gdal python3-pip python3-pyqt5 python3-pyqt5.qtopengl python3-simplejson python3-tk python3-virtualenv`
+3. Create python virtual environment in repo's folder and activate it.
+`virtualenv venv`
+`source venv/bin/activate`
+4. Install python requirements.
+`pip3 install -r requirements.txt`
+5. Now, FlatCAM can be launched with `launch.sh`.
+
+#### Windows
 
 - download the provided installer (for your OS flavor 64bit or 32bit) from:
 https://bitbucket.org/jpcgt/flatcam/downloads/
@@ -61,7 +72,7 @@ Run FlatCAM beta from the installation folder (e.g D:\FlatCAM_beta) in the Comma
 cd D:\FlatCAM_beta
 python FlatCAM.py
 
-2.Linux
+#### Linux
 
 - make sure that Python 3.8 is installed on your OS and that the command: python3 -V confirm it
 - verify that the pip package is installed for your Python installation (e.g 3.8) by running the command:
@@ -96,7 +107,7 @@ make install
 sudo make install
 ```
 
-3.MacOS
+#### MacOS
 
 Instructions from here: https://gist.github.com/natevw/3e6fc929aff358b38c0a#gistcomment-3111878
 

launch.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+cwd=$(dirname "$0")
+args=$*
+
+source "$cwd/venv/bin/activate"
+
+python "$cwd/FlatCAM.py" "$args"
+
+deactivate

requirements.txt

@@ -2,30 +2,27 @@
 # Python packages that cannot be installed with pip (e.g. PyQt5, GDAL) are not included.
 # For Windows GDAL wheel can be found here: https://www.lfd.uci.edu/~gohlke/pythonlibs/#gdal
 # Usage: pip3 install -r requirements.txt
-
-pyqt5>=5.12.1
-numpy>=1.16
-matplotlib>=3.1
-cycler>=0.10
-python-dateutil>=2.1
-kiwisolver>=1.1
-six
-setuptools
-dill
-rtree
-pyopengl
-vispy
-ortools>=7.0
-svg.path>=4.0
-simplejson
-shapely>=1.7.0
-freetype-py
-fontTools
-rasterio
-lxml
-ezdxf
-qrcode>=6.1
-reportlab>=3.5
-svglib
-gdal
-pyserial>=3.4
+cycler==0.10.0
+dill==0.3.3
+ezdxf==0.15.2
+fonttools==4.21.1
+freetype-py==2.2.0
+kiwisolver==1.3.1
+lxml==4.6.2
+matplotlib==3.3.4
+numpy==1.20.1
+ortools==8.1.8487
+PyOpenGL==3.1.5
+PyQt5==5.15.3
+pyserial==3.5
+python-dateutil==2.8.1
+qrcode==6.1
+rasterio==1.2.0
+reportlab==3.5.59
+Rtree==0.9.7
+Shapely==1.7.1
+simplejson==3.17.2
+six==1.15.0
+svg.path==4.1
+svglib==1.0.1
+vispy==0.6.6