Chart::Clicker - Perl charting library

Version 2.4.2: Tabular Legend

gphat — Sun, 23 Aug 2009 15:46:45 +0000

As requested by in #chart-clicker I’ve added a tabular legend.

You can learn how to use it by checkout out the docs for Legend::Tabular on CPAN (when it shows up!).

Version 2.4.1: Titles

gphat — Thu, 30 Jul 2009 23:46:01 +0000

As requested by nelish in #chart-clicker I’ve added titles.

The font used is the beautiful new Calluna.

Latest Work: Book

gphat — Sat, 11 Jul 2009 16:31:46 +0000

Lately I’ve ben playing with the idea of writing a book about Clicker. Ultimately I play to offer it for sale at a sane price as a PDF with an option to buy a dead-tree version. In the interest of getting some work out I’m releasing an early version (PDF). Let me know what you think!

Using User-Installed Fonts with Clicker

gphat — Sat, 23 May 2009 15:38:09 +0000

If you are a Mac user and have tried to use fonts that you installed in your local Fonts directory, you may have had some trouble. I’ve tried to fix this a few times, but never found the hint I needed. Today that changed!

Create a ~/.fonts.conf that contains the following:

 version="1.0"?>


>
 


 
        >/System/Library/Fonts>
        >/Library/Fonts>
        >~/Library/Fonts>
 
>

This should enable any font-config enabled application to find your precious fonts!

New Renderer: CandleStick

gphat — Sat, 09 May 2009 04:51:52 +0000

This has been on my list for quite some time and tonight I finally got around to it.

It’s included in the latest release, just uploaded to CPAN.

Proper Text Rotation

gphat — Sat, 02 May 2009 16:45:10 +0000

The just-uploaded 2.24 release of Chart::Clicker depends on a fresh release of the Graphics::Primitive Cairo driver. This is important because Clicker’s ornery text-rotation bug is now gone. Previously, rotation didn’t calculate a bounding box, it instead allocated space that was a square as big as original box’s largest dimension. The yield can be seen quickly in this composite of a before (0.36) and after (0.37) shot of a simple chart:

You can see how much space was wasted on the vertical y-axis label. On the right things are sized properly.

The only other “major” bug I’ve got hanging around in Clicker is an overflow bug due to broken legend wrapping. I’ll attack this next.

Refining The Line

gphat — Tue, 28 Apr 2009 00:43:39 +0000

The latest release of Clicker fixes some undocumented behavior of the Line renderer and makes it easier to add borders to shapes added to the line, like so:

This is a comment effect used in many modern charts. I’m not sure as to the utility of it, but it increases the ink-to-data ratio, thereby passing one of the tests installed by my study of Tufte.

You can use this feature in the upcoming 2.23 release.

New Renderer: Stacked Line

gphat — Sun, 05 Apr 2009 23:24:45 +0000

Well, not really new. The Line renderer is now capable of producing stacked output. All you need to do is set the additive attribute to a true value!

This will be available on the 2.22 release, being uploaded to CPAN now.

New Renderer: Stacked Area

gphat — Sat, 28 Mar 2009 04:33:31 +0000

Per a few requests, I implemented a Stacked Area renderer tonight:

I also fixed a bug in StackedBar, adjusted “fade” gradients in and made some other small improvements. Version 2.20 was just uploaded to the CPAN.

Over Axis

gphat — Fri, 13 Feb 2009 02:10:52 +0000

Just finished some new work that I wanted to show.

This is accomplished via the new OverAxis decoration that will be included in the next Clicker release.