New feature: Support multiple series bar chart in combined xy chart

paragp / achartengine

AChartEngine is a charting library for Android applications. It currently supports the following chart types: line chart area chart scatter chart time chart bar chart pie chart bubble chart doughnut chart range (high-low) bar chart dial chart / gauge combined (any combination of line, cubic line, scatter, bar, range bar, bubble) chart cubic line chart All the above supported chart types can contain multiple series, can be displayed with the X axis horizontally (default) or vertically and support many other custom features. The charts can be built as a view that can be added to a view group or as an intent, such as it can be used to start an activity. The model and the graphing code is well optimized such as it can handle and display huge number of values. AChartEngine is currently at the 1.0.0 release. New chart types will be added in the following releases. Please keep sending your feedback such as we can continually improve this library. Find us on Facebook, too: http://www.facebook.com/achartengine Read a short introduction to AChartEngine here: http://www.javaadvent.com/2012/12/achartengine-charting-library-for.html Another good tutorial can be read here: http://jaxenter.com/effort-free-graphs-on-android-with-achartengine-46199.html

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What steps will reproduce the problem?
Define 3 series (2 bar chart series, 1 line chart series) in a dataset for a 
combined XY chart like this:
ChartFactory.getCombinedXYChartView(ctx, dataset, renderer, new String[] { 
BarChart.TYPE, BarChart.TYPE, LineChart.TYPE });

What is the expected output? What do you see instead?
Bar charts with multiple data series are not displayed properly in 
CombinedXYChart, the series overlap each other.

Current view: http://i.imgur.com/71HAPo3.jpg
Expected view: http://i.imgur.com/Jxq0BTV.jpg

What version of the product binary library are you using?
1.2.0

Please provide any additional information below.
The attached patch will enable the support of this feature.
Basically I extended the constructor with a more detailed chart type Definition 
which is used to properly build the data series and renderer for each chart.
I also extended the demo chart CombinedTemperatureChart to demonstrate the 
usage.

Original issue reported on code.google.com by stefan.f...@gmail.com on 11 Dec 2013 at 4:14

Attachments:

patch.txt

paragp / achartengine

New feature: Support multiple series bar chart in combined xy chart #378