Thanks, Ely. Can you point to or provide a simple example of dataprovider
preprocessing?
If my data structure is as follows:
<data>
<result>
<apple></apple>
<orange></orange>
<banana></banana>
</result>
...
</data>
I can see that I need to perform some math on the "result" nodes to create
the new dataProvider:
- add a <total></total> node that is the sum of the "apple" "orange" and
"banana" values
- set the minValue for "orange" as the yValue of "apple', and set the
yValue of "orange" as "apple" plus "orange"
- set the minValue for "banana" as the yValue of "orange" and set the
yValue of "banana" the same as "total"
The "generating chart data" example in the docs seems close, but it's based
on random values rather than manipulating a real xml source.
Another question while I'm at it: is it possible to change the spacing for
just one of four columns in a cluster? I'd like to "total" column to be
separated from the "waterfall" by a space.
- Tom
At 01:00 PM 10/5/2005, you wrote:
>Hi Tom. The best way to do this is to pre-process your dataprovider into
>a synthetic one that has all of the summed values in it. Use that as the
>dataprovider for the chart, and set the various min/max fields of the
>series appropriately.
>
>
>Ely.
>
>
>-----Original Message-----
>From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
>Behalf Of Tom Fitzpatrick
>Sent: Wednesday, October 05, 2005 6:35 AM
>To: flexcoders@yahoogroups.com
>Subject: [flexcoders] Waterfall chart
>Importance: High
>
>I'd like to make a "waterfall" chart (at least that's one name for it)
>- a version of the stacked bar chart. The first column is the total of
>three values. The next three columns represent the three separate values
>that make up the total, but instead of stacking they "float" next to
>each other at the appropriate height and with the appropriate color and
>tooltip info.
>
>My question is - can the values in the ColumnSeries be determined using
>a function - kind of like a labelFunction for charts? This would enable
>me to calculate the value for the "total" column and the starting and
>ending values for the three floating columns. Or is there an
>easier/better way to accomplish this?
>
>- Tom
>
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