Ely - thanks. I had already come up with a somewhat less efficient
solution, so this helps.
The Cartesian tip was helpful also - though the offset settings are a bit
cryptic at first.
- Tom
At 12:55 PM 10/6/2005, you wrote:
>Sure Tom. You've got the basics in your outline below. Basically, you
>want something like:
>
>Function genDP(original:Array):Array
>{
> var result:Array = [];
> for(var i=0;i<original.length;i++) {
> var v:Object = result[i]
> result[i] = {
> sum: v.apple + v.orange + v.banana,
> apple: v.apple,
> orangeMin: v.apple,
> orangeMax: v.orange + v.apple,
> ...
> }
> }
> return result;
>}
>Regarding clustering...you can't tweak the clustering behavior in
>ColumnChart, but all the clustering is doing is setting the offset and
>columnWidthRatio properties of the individual ColumnSeries objects to
>make them line up. So if you used a CartesianChart with some
>ColumnSeries in it, you could manually set the offset/columnWidthRatio
>properties to whatever you wanted.
>
>Ely.
>
>
>
>-----Original Message-----
>From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On
>Behalf Of Tom Fitzpatrick
>Sent: Thursday, October 06, 2005 7:17 AM
>To: flexcoders@yahoogroups.com
>Subject: RE: [flexcoders] Waterfall chart
>Importance: High
>
>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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