Map-Print-O-Matic

Exposing a web API that returns a ready-to-print PDF

Installation

Setting up Python and OpenCV

This is by far the biggest hassle. Once it is done, however, it never needs to be done again. These instructions work on Ubuntu 12.04. You’ll probably need to modify them to suit your particular environment. These directions also assume you have virtualenvwrapper setup as well.

$ mkvirtualenv printmatic
$ pip install numpy
$ sudo apt-get install cmake libgtk2.0-dev pkg-config libavcodec-dev \
  libavformat-dev libswscale-dev libamd2.2.0 libblas3gf libc6 libgcc1 \
  libgfortran3 liblapack3gf libumfpack5.4.0 libstdc++6 build-essential \
  gfortran libatlas-dev libatlas-base-dev libblas-dev liblapack-dev libjpeg-dev \
  libpng-dev libtiff-dev libjasper-dev
$ wget -O opencv-2.4.9.zip http://downloads.sourceforge.net/project/opencvlibrary/opencv-unix/2.4.9/opencv-2.4.9.zip?r=http%3A%2F%2Fopencv.org%2Fdownloads.html&ts=1403558615&use_mirror=softlayer-dal
$ mkdir src && mv opencv-2.4.9.zip src && cd src
$ unzip opencv-2.4.9.zip
$ cd opencv-2.4.5/
$ mkdir release
$ cd release
$ cmake -DMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$VIRTUAL_ENV/local/ \
  -DPYTHON_EXECUTABLE=$VIRTUAL_ENV/bin/python \
  -DPYTHON_PACKAGES_PATH=$VIRTUAL_ENV/lib/python2.7/site-packages \
  -DINSTALL_PYTHON_EXAMPLES=ON ..
$ make -j8 # Set the number here to the number of processing cores you have
$ make install

Mac install

Make a virtual environment

$ mkvirtualenv printmatic

Install the required libraries

$ pip install -r requirements

Install OpenCV

This is a hassle. Maybe use brew?

I already had OpenCV installed, and had to copy cv2.so to my virtualenv's site-packages. This probably can be dealt with better by some PATH manuvering.

Install Cairo

Getting Cairo set up has been a major pain. The most common problems are caused by it simply not being found. Try:

export PKG_CONFIG_PATH=/usr/X11/lib/pkgconfig

(or just add it right to your PATH)

Install py2cairo

It seems like you have to do this by hand now:

curl http://cairographics.org/releases/py2cairo-1.10.0.tar.bz2 > py2cairo.tar.bz2
tar -xvf py2cairo.tar.bz2
./waf configure --prefix=FULL_PATH_TO_VIRTUALENV
./waf build
./waf install

Running the app

$ python app.py

hampelm/lascaux