Re: [flexcoders] Re: DataTransform.transformCache

[Brendan Meutzner]

Ely,I'm creating an annotation that gets rendered on the chart at a physical location determined by a particular chart element.  When I load the annotation, I know the horizontal axis value of the chart item, and I know the y-value that item represents.  I use the transformCache method to get the screen coordinates that my annotation should be placed (the top left corner of the chart item, be it a column, line data point, plot point, etc...)  My problem was that calling transformCache on the 
Chart.dataTransform object was using the left axis values for conversion.  By calling the dataTransform objects methods on the series the element belongs to solved my problem.  I really hope that made sense.  If not, I e-mailed you the application earlier today and can point directly to the code where it's being used.
Thanks,BrendanOn 9/12/06, Ely Greenfield <[EMAIL PROTECTED]> wrote:













  


    
            


 
 
Hi Brendan. Can you give a little more detail of what 
you're trying to do and how you're solving it?  I have a nagging feeling 
you still might be mis-using the API in some way.
 
Ely.
 


From: [EMAIL PROTECTED]ups.com 
[mailto:flexcoders@yahoogroups.com] On Behalf Of Brendan 
MeutznerSent: Tuesday, September 12, 2006 3:23 PMTo: 
[EMAIL PROTECTED]ups.comSubject: Re: [flexcoders] Re: 
DataTransform.transformCache


Bill,Thanks so much.  It was looking at the DataTransform object 
the wrong way.  Once you clarified below that an instance is tied to the 
Series, I was able to get my example working by calling the series instance 
related to that right axis. Thanks again,Brendan
On 9/12/06, bill_sahlas <[EMAIL PROTECTED]
> wrote:

  
  
  
  
  
  
  Hello, 
  From one of our engineers that worked on 
  Charting CartesianCharts can own multiple data transforms. Each data 
  transform is associated with a specific set of axes...one horizontal, one 
  vertical, etc.  When you specify a series, it gets associated with a 
  single data transform, and hence a single set of axes.  The built in 
  cartesian chart types have two data transforms...primary, and 
  secondary.  If you put a series in the primary set, it gets the primary 
  transform+axes....in the secondary set, it gets the secondary 
  transform+axes.  There's no supported way to reach across from a primary 
  series and transform against the secondary axes. 
  HTH, 
  Bill
  --- In [EMAIL PROTECTED]ups.com, "Brendan Meutzner" 
  <[EMAIL PROTECTED]> wrote: >> Hi,> > I'm 
  unable to figure out how to specify which verticalAxis (I have two) I> 
  want to use for the transformCache method on DataTransform. I'd like to 
  use> the secondVerticalAxis in order to do the calculation. Does 
  somebody have a > working example?> > Thanks,> 
  > Brendan>
  
  
  


      

    
    












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