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About chartcomposite [message #491428]

Wed, 14 October 2009 14:21

shan

Messages: 7
Registered: September 2009

Junior Member

Hello,
I want to know if there is any possiblity to test chartcomposite with Swtbot? Thank you.

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Re: About chartcomposite [message #492194 is a reply to message #491428]

Mon, 19 October 2009 12:09

Ketan Padegaonkar

Messages: 873
Registered: July 2009

Senior Member

On 14/10/09 7:51 PM, shan wrote:
> Hello,
> I want to know if there is any possiblity to test chartcomposite with
> Swtbot? Thank you.

By chartcomposite, I presume you mean the one that ships with
JFreeCharts. The answer is yes an no.

The degree of testability will depend on the kind of model that's behind
your chart. If there's no model your best bet would be to screenscrape
the canvas (pixel by pixel) to get values -- painful I know :)

By model I mean something similar to:

years = bar_chart.x_values();
population = bar_chart.y_values();

population_every_year_list = bar_chart.plot_values();

Or something like:

population_distribution_by_age = pie_graph.values();

--
Ketan
http://studios.thoughtworks.com/twist | http://twitter.com/ketanpkr

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