Highcharts - Realtime

Revision as of 21:14, 28 November 2012 by Mcrossley (talk | contribs)
Name: Realtime_Highchart
Type: PHP,AJAX
Author: Mark Crossley
Contact: 'MCrossley' via the forum
Last update: 28 November 2012
Version: 0.1

Dynamically Updating a Highcharts Graph from Realtime.txt

This page describes how to implement a simple dynamically updating chart using Highcharts, PHP, realtime.txt, and AJAX.

Requirements

The web server must have..

  • PHP
  • Cumulus Realtime.txt


Installation

Next you have to decide where and how the realtime log file will be created. The zip file contains a simple Windows batch file that will create a log file of a specified length. If you have a Windows web server you could run it directly on there (this is how I do it), or run it on your Cumulus computer and get Cumulus to upload the log file periodically.

Alternatively Kevin at TNET Weather has created a PHP script to create such a log file. The batch file is simple and creates a limited length log file, the TNET scripts typically create much larger log files, and the realtimeLogParser.php script I have written returns all the entries it finds in the file. It would require amendment to work with the larger TNET logs.