In this article, Matthew Bass, explains the Google Charts web service, which allows to create a wide range of charts very easily. The specification and data for the chart is encoded in the URL for the web service, which then returns the charts as image file.
Matthew continues to show the gchartrb library, which provides a Ruby interface for creating the Google Charts URLs. This is followed by an explanation of how to use Capistrano to cache the Google Charts created charts locally.
Read "Intro to Google Charts and gchartrb".
Matthew continues to show the gchartrb library, which provides a Ruby interface for creating the Google Charts URLs. This is followed by an explanation of how to use Capistrano to cache the Google Charts created charts locally.
Read "Intro to Google Charts and gchartrb".