RE: [jCharts-users] Trying to subclass

[Nathaniel G. A. <nat...@ya...>]

yes.  I guess I never really thought people would add chart types to the library; i figured people
would just use it. My bad.

Would you care to donate the new chart types to the project?





--- Lora Lantzy <Lor...@sa...> wrote:
> 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:nat...@ya...] 
> Sent: Friday, April 23, 2004 10:47 AM
> To: jch...@li...
> 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 <Lor...@sa...> 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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> 
> 
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