GNU Health/Plugins

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Introduction[edit]

The GNU Health Plugins are client-side programs that provide extra functionality. They are installed locally.

Initialize the plugin directory[edit]

The GNU Health plugins are installed in your $HOME directory, under "gnuhealth_plugins".

mkdir $HOME/gnuhealth_plugins

In order to keep the GNU Health plugins across the Tryton compatible with the current GNU Health, you need to create a link to the GNU Health plugins directory

ln -si $HOME/gnuhealth_plugins $HOME/.config/tryton/3.8/plugins

The GNU Health Camera[edit]

The GNU Health camera plugin allows to visualize, transfer and store media from a webcam device ( camera, microscope, ... ).

There are many contexts where the camera is useful, some of them :

  • Person or patient registration
  • Domiciliary units surveys
  • Histological studies
  • EKG strips
  • Telemedicine
  • Dx Imaging
  • ...

The information captured by the device will be transferred and stored in the GNU Health server.

Installing OpenCV[edit]

The GNU Health camera uses the excellent Open Computer Vision library ("OpenCV"). You need to install the opencv package for your operating system.

How to check the correct installation of OpenCV: import the module CV2 in the python interpreter

$ python2
Python 2.7.11 (default, Mar 31 2016, 06:18:34) 
[GCC 5.3.0] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import cv2
>>>

If no errors, the installation is successful!

Installing the GNU Health Camera[edit]

Download and uncompress the latest version from GNU into your home directory

cd $HOME
wget ftp://ftp.gnu.org/gnu/health/plugins/gnuhealth-camera-plugin-latest.tar.gz
tar -xzvf gnuhealth-camera-plugin-latest.tar.gz

Restart the client

Invoking the GNU Health Camera[edit]

Invoking the GNU Health camera from the client

From the client, click on the Launch action icon, and select "GNU Health Camera"

Gnuhealth camera plugin


Using the Camera[edit]

"a" : attach any media taken from the camera device into the current model.

[SPACE] : store the media as a binary field, for instance, as the person / patient picture. To store the media as a picture, press the SPACE bar. Currently GNU Health has the party model person picture predefined.

"h" : Show the help menu

"q" : Quit the camera

After you transfer the media, you need to refresh the current view [CONTROL + R]

GNU Health Crypto plugin[edit]

GNU Health allows signing and encrypting documents with the GNU Privacy Guard plugin.

The Crypto plugin works along with the GNU Health Crypto Module .

In order to use it, you need the following in your client:

  • The GNU Health crypto plugin for the Tryton client, shipped with the main tarball (under the backend/plugins directory). Since 2.8.0, the GNU Health Tryton crypto plugin will be a separate package.
  • The GPG package (comes with most modern operating systems).
  • The python-gnupg library (https://pypi.python.org/pypi/python-gnupg).


Installation of the Crypto plugin[edit]

We assume you have installed the Tryton client using the sources . Suppose you are using the Tryton client 3.4.1 in your $HOME dir

Place the "crypto" directory containing the plugin under the "gnuhealth_plugins" of your client.

cp -a gnuhealth_crypto_plugin_dir $HOME/gnuhealth_plugins