[jCharts-developers] Fwd: Re: Mods..

[<jch...@li...>]

fyi

--- John Thomsen <jth...@bl...> wrote:
> Date: Tue, 23 Jul 2002 01:28:51 -0400
> To: "Nathaniel G. Auvil" <nat...@ya...>
> From: John Thomsen <jth...@bl...>
> Subject: Re: Mods..
> 
> Hi Nathaniel,
> 
> Another long email from me...
> 
> I am not copying the dev list, because I am not sure what you want to do 
> with the included code. ;-)
> 
> I have pretty much finished the changes I proposed in the last email - 
> except, of course, the pie chart issues, which again I have not looked at. 
> I think your idea of using preset columns is probably the fastest safest 
> way to have something done.
> 
> I have been able to get the speed cut by about 50 percent (on my machine) 
> by using the TextLayout.draw function. The SwingTest.java outputs some 
> (poor) timing information, and it displays 4 different charts - 2 of them 
> with the new BarValues tags.
> 
> To the BarValues I added user strings to the list of options.
> 
> One problem is that although the chart orientation may be swapped for all 
> AxisCharts, it is currently only supported by BarChart and 
> ClusteredBarChart. It shouldn't be too hard to convert the rest, but I did 
> a lot of testing on the BarChart graphs before I was comfortable that they 
> were working as designed. One thing I just remembered not testing is 
> vertical text output on the vertical axis. It should work though...
> 
> A design note on the XAxis/YAxis change - I gutted these and factored the 
> code upward to DataAxis and LabelAxis, and Axis itself. (DataAxis 
> implements Axis, and YAxis implements DataAxis...). I left as much of the 
> old code as I felt was necessary for backwards compatibility. Because 
> AxisChart has the calls getXAxis and getYAxis, I had to  instantiate XAxis 
> and YAxis in AxisChart, but then "type"ing them as LabelAxis,DataAxis for 
> manipulation. This gives things like labelFiltering by axis, etc..
> 
> I also added new functions in the DataSeries and similar classes to reflect 
> the DataAxis/LabelAxis instead of XAxis/YAxis - of course, I left the 
> originals (though they now call the new code) and @deprecated them.
> 
> I didn't really know where to put some of the new files 
> (TextTag,TextTagGroup,BarValuesGroup) - so I put them close at hand. But I 
> didn't put them there because I thought it made any organizational sense.
> 
> A note about style. I like the style that you use, probably because it's 
> very close to mine (coming from a C/C++ background). But there are a few 
> things that I do differently (I am sure you will notice), and I tried to 
> keep the format the same, but I am not sure I caught everything. I am sure 
> that didn't right justify long parameter lists the way you do, because I 
> couldn't figure out what your specific style on those. And I left commented 
> out debug prints in the code.
> 
> I just got busier at work, so I don't know how much more time I can 
> dedicate to this for a while... But I will have some time. If you have any 
> questions, or need me to do something or look at something, please let me know.
> 
> I am including a zip file of all the changes - the path starts at org/
> I think I have listed all the files here:
> 
> New files:
> org/jCharts/TextTagGroup.java - To hold a group of TextTags and automate 
> processing.
> org/jCharts/TextTag.java - To hold a TextTag, which can give information, 
> then render itself.
> org/jCharts/BarValueGroup.java - To hold the new Bar Value Text and 
> automate processing.
> org/jCharts/axisChart/DataAxis.java - The new data axis.
> org/jCharts/axisChart/LabelAxis.java - The new label axis.
> 
> Modified files:
> org/jCharts/test/SwingTest.java - My examples and latest tests.
> 
> org/jCharts/axisChart/Axis.java - Now contains normalized code from XAxis/YAxis
> org/jCharts/axisChart/AxisChart.java - Added support for orientation, and 
> new axis approach.
> org/jCharts/axisChart/BarChart.java - Added support for Horizontal Chart 
> display, and bar value tags.
> org/jCharts/axisChart/ClusteredBarChart.java - Added support for Horizontal 
> Chart display.
> org/jCharts/axisChart/XAxis.java - major changes.
> org/jCharts/axisChart/YAxis.java - major changes.
> 
> org/jCharts/chartData/DataSeries.java - orientation support
> org/jCharts/chartData/interfaces/IDataSeries.java - orientation support
> org/jCharts/chartData/processors/AxisChartDataProcessor.java - orientation 
> support
> 
> org/jCharts/properties/AxisProperties.java - Added orientation support.
> org/jCharts/properties/BarChartProperties.java - Added BarValues support.
> 
> 
> jt.
> 

> ATTACHMENT part 2 application/zip name=updates.zip; x-mac-type=705A4950; x-mac-creator=705A4950



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