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Graphviz Filter is a fun little filter that treats input text as Graphviz DOT syntax, converts it using Graphviz tools to the requested format(s) and renders it in HTML. It's useful to quickly create graphs dynamically from within Drupal nodes. A particularly exciting application is to create an input format consisting of PHP code followed by Graphviz Filter, thereby allowing one to write code that outputs a DOT file, which is then rendered to HTML. For example, one could create a visual taxonomy tree with nodes hanging from the terms, and each visual node would be clickable (using the URL Graphviz attribute) to point to the actual Drupal node. Stuff like that!

Thanks to varienne for the great documentation (in the Resources section below)!

REQUIREMENTS & INSTALLATION

Graphviz package

• Ubuntu/Debian:
  

  sudo apt-get install graphviz
  

• Windows: Download the latest version.
• Mac OS X + MAMP: Download the latest version.
  

Educational block is a simple way to add tips (displayed in a block) to your node/add pages.

This module provides a mechanism for a View block to have AJAX based pagination.

Enables the creation of a views field that is the same for every row.

This is a straight, copy-paste backport of the drupal_html_to_text facility from Drupal 6. If you have any issue, please check that against Drupal 6.

Upload Log is a module which allows direct uploads from programs to a Drupal site (with authentication, through the HTTP Authentication Module). The sending of notification e-mails is possible, as is data validation.

A demonstration is available in the WaterSums software.

Any programming language that supports HTTP uploads with HTTP authentication can be used to send log files.