RE: Trying to subclass

Yes the developer before me needed 4 new chart types which is why he modified ChartType.java and AxisChart.java.  

If I am understanding you, then the correct way to add the new chart types is to modify these source files instead of subclassing.  

I appreciate your quick response.  

Thank you,
Lora Lantzy

-----Original Message-----
From: Nathaniel G. Auvil [mailto:[email protected]] 
Sent: Friday, April 23, 2004 10:47 AM
To: [email protected]
Subject: Re: [jCharts-users] Trying to subclass



Are you trying to add your own chart type?  If so, you would have to do several things to the internals of jcharts, including modifying that file.

the classes are abstract because they only contain static methods for rendering the chart. It gets driven by AxisChart.  And unless you are creating a new chart type, this should not be of concern as you would not call these classes directly.




--- Lora Lantzy <[email protected]> wrote:
> I inherited some JCharts code from another developer and am trying to 
> subclass ChartType.java and AxisChart.java.  The previous programmer 
> edited the JCharts source code which has now prevented me from using 
> the latest version.  I have run into some problems especially with 
> ChartType.java.  The constructor is private and thus I am unable to 
> subclass it.  I am sure there is a reason for making it private but I 
> am hoping there is a solution for those who need to subclass 
> ChartType.  With AxisChart, I am running into problems since all the 
> classes (AreaChart, BarChart, LineChart, etc) are abstract.  I would 
> appreciate any help that can be provided.
> 
> Thank you,
> Lora Lantzy
> 
> 
> 
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