Column or Bar chart - highlight one column

[drozzy]

Hi guys,
I was wandering if anyone ever tried making one column in a column
chart (or barchart) stand out with a different color, like this:
http://i46.tinypic.com/106gb39.png

I tried using formatters, even tried creating two datasets (but it
just squishes the columns of the graph).
Any tips?

[drozzy]

Hello, again,
Well it seems you can use Image Chart instead.
But does that allow me for interactive behavior (i.e. can i still have
mouse overs)? Also - BackgroundColor does not work with Image Chart.

[drozzy]

OK - backgroundColor DOES work.
The only things I am missing are:
1. Events
2. X and Y axis labels.

[Bug Chart]

Hi,

1: Events

    Take a look here: http://code.google.com/apis/chart/docs/json_format.html

    This is not as difficult as it looks ;]

    Also, we intend to make it easier in the future also.

2: X and Y axis labels

    Take a look here: http://code.google.com/apis/chart/docs/chart_params.html#axis_labels

HTH,

BugChart.

[drozzy]

Hm.. isn't the whole point of SVG to allow javascript access to
object, like lines and such?

I don't know why I can't access ColumnChart attributes of a particular
column for example. Or at least is the code for visualizations
available somewhere?

Thanks but I'm not using image maps - I might have to go back to my
hand-crafted raphael js library. Damn it... but this google
visualizations business looked so promising...

[drozzy]

Well it took me a while but I finally got to it:

var frame = $$('iframe')[0];
frame.document().body.childNodes[1].children[0].childNodes[1].childNodes[25].childNodes[0].attributes['5'].value
= '#EEEEEE'

I was using prototype for $$ selector and the following addition to
prototype to enable accessing iframe object:
http://www.ridingtheclutch.com/2008/10/09/want-to-use-prototype-to-access-something-in-an-iframe.html