RE: [jCharts-users] Trying to subclass

[Lora L. <Lor...@sa...>]

I am attaching an image of the chart we are using (please let me know if =
you can not view it).  The new chart types that were created are the =
overlays (green line and red Ibars).  I was wondering if you could tell =
me if it was possible to create these overlays with the existing =
library. =20

Again I appreciate your quick response.

Thank you,
Lora Lantzy



-----Original Message-----
From: Nathaniel G. Auvil [mailto:nat...@ya...]=20
Sent: Friday, April 23, 2004 11:31 AM
To: jch...@li...
Subject: RE: [jCharts-users] Trying to subclass



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=20
> modified ChartType.java and AxisChart.java.
>=20
> If I am understanding you, then the correct way to add the new chart=20
> types is to modify these source files instead of subclassing.
>=20
> I appreciate your quick response.
>=20
> Thank you,
> Lora Lantzy
>=20
> -----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
>=20
>=20
>=20
> Are you trying to add your own chart type?  If so, you would have to=20
> do several things to the internals of jcharts, including modifying=20
> that file.
>=20
> the classes are abstract because they only contain static methods for=20
> rendering the chart. It gets driven by AxisChart.  And unless you are=20
> creating a new chart type, this should not be of concern as you would=20
> not call these classes directly.
>=20
>=20
>=20
>=20
> --- Lora Lantzy <Lor...@sa...> wrote:
> > I inherited some JCharts code from another developer and am trying=20
> > 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=20
> > ChartType.java.  The constructor is private and thus I am unable to=20
> > subclass it.  I am sure there is a reason for making it private but =
I=20
> > am hoping there is a solution for those who need to subclass=20
> > 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.
> >=20
> > Thank you,
> > Lora Lantzy
> >=20
> >=20
> >=20
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