What is the recommended way to load the google visualization libraries?

[Ben]

Hi,

What is the recommended way to load the visualization libraries?

I noticed in the documentations there are two methods:

OPTION 1
http://code.google.com/apis/chart/interactive/docs/quick_start.html

<!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/
jsapi"></script>
<script type="text/javascript">

// Load the Visualization API and the piechart package.
google.load('visualization', '1.0', {'packages':['corechart']});

// Set a callback to run when the Google Visualization API is
loaded.
google.setOnLoadCallback(drawChart);


OPTION 2
<!-- One script tag loads all the required libraries! Do not
specify any chart types in the autoload statement. -->
<script type="text/javascript"
src='https://www.google.com/jsapi?autoload={"modules":
[{"name":"visualization","version":"1"}]}'>
</script>
<script type="text/javascript">
google.setOnLoadCallback(drawVisualization);

Which one should we use or which one is better?

thanks

[asgallant]

The first allows you to make some decisions about which module(s) to load programatically; I think the second method is a tiny bit faster (maybe a few milliseconds).  I don't think there is a "recommended" way to do it.  Use whichever you find easier.

[Viz Kid]

Indeed the second option is a bit faster as it reduces one round trip to Google servers. You can however specify all the options in both loading schemes (unlike the example you wrote where you did not load 'corechart' at all).

For easy usage of the second method, there is the auto loader wizard: http://code.google.com/apis/loader/autoloader-wizard.html

Hope this helps,

  Viz Kid

On Wed, Aug 31, 2011 at 10:02 PM, asgallant <drew_g...@abtassoc.com> wrote:

The first allows you to make some decisions about which module(s) to load programatically; I think the second method is a tiny bit faster (maybe a few milliseconds).  I don't think there is a "recommended" way to do it.  Use whichever you find easier.

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