[jfreechart-dev] StackedBarRenderer3D

A discussion forum for JFreeChart (a 2D chart library for the Java platform).
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DaveLaw
Posts: 8
Joined: Fri Feb 04, 2011 10:23 pm
antibot: No, of course not.

[jfreechart-dev] StackedBarRenderer3D

Post by DaveLaw » Fri Feb 04, 2011 10:33 pm

Hallo Martin,

thanks or the info, I'll get things ready.

I was just wondering what strategy you're taking regarding JDK version.
I read in the FAQ about v1.3.1 compatibility & while I find backward
compatibility a virtue, there comes a time when you have to call it a day.

I would say JDK 1.3.1 has had its day & half of the day after. :D

Surely its time to move on?

Best regards,
DaveLaw


On 04.02.2011 08:50, Martin Höller wrote:
> Hi David!
>
> Am Freitag 04 Februar 2011, 00:24:15 schrieb David Law:
>> Hi all,
>>
>> my first posting:
>>
>> A colleague complained to me that StackedBarRenderer3D ignores
>> transparency.
>>
>> It doesn't really, but because 5 of the 6 faces are "darker" &
>> Color.darker() throws away the alha channel, the end-result can look
>> pretty non-3D and is certainly never transparent.
>>
>> I've created a PaintUtil class with a darker method which honours
>> transparency.
>>
>> Having done that I decide to take a look at other Paints & have extended
>> the above to cover: GradientPaint
>> RadialGradientPaint (since JDK v1.6!!)
>>
>> I've also been fiddling with
>> TexturePaint
>>
>> ...which is a bit trickier because of the different Colour Models.
>> In particular, its difficult to dredge up Test Images for some of
>> the more obscure models.
>>
>> ...and I'm not yet sure what the correct way to handle Images
>> with pre-multiplied alpha is.
>>
>> But, so far for the mainstream its looking pretty good.
>>
>> Are you interested in the code when I'm finished?
>
> This list was never very active and the main contributor of JFreeChart David
> Gilbert is "lost" since some time. However, there is a forum at
> http://www.jfree.org/phpBB2/viewforum.php?f=3 which is quite active. This
> would probably be a better place to ask for feedback or discussion.
>
> Your work sounds interesting. If you could provide the code via the
> Sourceforge project-page when you are done, that would be great. Eventually
> someone would integrate it into a new Version of JFreeChart.
>
> hth,
> - martin

matinh
Posts: 483
Joined: Fri Aug 11, 2006 10:08 am
Location: Austria

Re: [jfreechart-dev] StackedBarRenderer3D

Post by matinh » Tue Feb 08, 2011 3:24 pm

Hi David!

As currently nobody is (actively) maintaining JFreeChart there is no strategy at all :(.
AFAIK JFreeChart 1.0.13 was still compatible with JDK 1.3. Who knows what the next version will be and what it is going to run on?

If your code runs on JDK 1.3, fine. If it doesn't, try so post it anyway, so others can benefit from it.

kind regards,
- martin

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