Cumulative XType Extension

Description

The Cumulative XType extension is a WeeWX extension that installs an XType that provides cumulative series data with a flexible, user settable reset date-time. When used with the WeeWX image generator this enables the generation of cumulative plots that reset at a specified time or date and time. For example, a cumulative rain plot can be produced for a day with the rainfall resetting to zero at midnight:

The extension consists of a single WeeWX XType and an associated WeeWX service. A number of config options can be used to control the operation of the Cumulative XType.

Pre-requisites

The Cumulative XType extension requires WeeWX v4.6.0 or greater and will operate under Python 2 or Python 3.

Installation Instructions

1. Download the Cumulative XType extension package:

   $ wget -P /var/tmp https://github.com/gjr80/weewx-xcumulative/releases/download/v0.1.0/xcum-0.1.0.tar.gz
   

2. Install the Cumulative XType extension:

   $ wee_extension --install=/var/tmp/xcum-0.1.0.tar.gz
   

   Note: Depending on your system/installation the above command may need to be prefixed with sudo.

   Note: Depending on your WeeWX installation wee_extension may need to be prefixed with the path to wee_extension.

3. Restart the WeeWX daemon:

   $ sudo /etc/init.d/weewx restart
   

   or

   $ sudo service weewx restart
   

   or

   $ sudo systemctl restart weewx
   

4. You may now use the aggregate type cumulative to produce cumulative series data with user selectable reset times.