On Dec 6, 2007, at 10:35 PM, Kevan Miller wrote:
On Dec 6, 2007, at 9:29 PM, Erik B. Craig wrote:
All,
Currently the monitoring client is using Dojo 0.4.3 charting, which
does not necessarily behave as expected on Firefox/Safari on a mac,
or on IE6 on Windows.
I consider this to be a shortcoming, and given the new version of
Dojo available (1.0.1), began investigating migrating the
monitoring client over to the new version of Dojo, only to find
that the new version of dojo appears to be a significant rewrite of
the old code base, leaving out some features that I consider to be
very visually pleasing and important for statistics viewing. While
rummaging through the Dojo forums, I stumbled upon another
Javascript graphing framework called Timeplot, which is part of the
SIMILE project at MIT, and while this has it's own set of
limitations... I'm trying to figure out the lesser of three evils
before it comes a time that this monitoring plugin will be
released, so that I have enough time (read: 3-5 days) to migrate
the javascript generation over to something new if necessary.
I have created a small demonstration page that shows all three
options graphed with the same data series, as well as weighing some
of the advantages/disadvantages I could come up with,
Please have a look, and let me know your thoughts.
http://people.apache.org/~ecraig/graphdemo/
Personally, I think it would be really cool if we could use the
Timeplot graphing libraries, as it is all BSD licensed and
therefore friendly I believe (right, Kevan?)... and also EXTREMELY
cool for showing multiple data series in one chart.
I'll take a look at the license info for Timeplot.
However, if Timeplot doesn't work in IE, that's a severe
disadvantage. Can you explain what doesn't work?
From what I understand as far as Timeplot goes, it's due to Timeplot
using 'Canvas' to do the rendering, which is not something that
Internet Explorer has support for, and they are looking to begin using
an open sourced google library called 'explorer canvas' to enable
internet explorer support in the next release
(reference here on their site: http://simile.mit.edu/wiki/Timeplot_Limitations
)
As far as current dojo (0.4.3) is concerned, from what i can tell -
any browser on a Mac will not draw any of the surrounding text on a
graph... at least as implemented in a portlet. (The Axis labels and
values are absent).
I have also been unable to get IE6 to draw the graphs in the current
portlet as implemented.
--kevan
Thanks for taking a look at the license Kevan.
-Thanks,
Erik B. Craig
