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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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randomly not plotting line chart #425

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
I tried various patterns, but still couldn't find a definite pattern that 
outputs this issue.  Till now it seem totally random.

What is the expected output? What do you see instead?
The expected output is a line chart which happens a lot.  But sometimes a blank 
chart appears with the y and x-axis visible (as can be seen from the image).

Snippet:
String seriesTitle = "Alpha";
String seriesTitleB = "Beta";
String seriesTitleD = "Delta";
// create a new series of data
XYSeries series = new XYSeries(seriesTitle);
XYSeries seriesB = new XYSeries(seriesTitleB);
XYSeries seriesD = new XYSeries(seriesTitleD);
float x =1;
int c =0;
do{
   String s= alpha.getItems().get(c).toString();
   series.add((double)x, Double.parseDouble(s.substring(1, s.length()-1)));
   s= beta.getItems().get(c).toString();
   seriesB.add((double)x, Double.parseDouble(s.substring(1, s.length()-1)));
   s= delta.getItems().get(c).toString();
   seriesD.add((double)x, Double.parseDouble(s.substring(1, s.length()-1)));
   x++;
   c++;
}while(alpha.size() > c);

mDataset.addSeries(series);
mDataset.addSeries(seriesB);
mDataset.addSeries(seriesD);

// create a new renderer for the new series
XYSeriesRenderer renderer = new XYSeriesRenderer();
renderer.setColor(Color.argb(255, 238 , 89, 125));

// create a new renderer for the new series
XYSeriesRenderer rendererB = new XYSeriesRenderer();
rendererB.setColor(Color.argb(255, 29, 158, 225));

XYSeriesRenderer rendererD = new XYSeriesRenderer();
rendererD.setColor(Color.argb(255, 15, 122, 131));

mRenderer.addSeriesRenderer(renderer);
mRenderer.addSeriesRenderer(rendererB);
mRenderer.addSeriesRenderer(rendererD);

mChartView.repaint();

What version of the product binary library are you using?
achartengine-1.1.0.jar

Original issue reported on code.google.com by jonathan...@gmail.com on 6 Aug 2014 at 9:31

Attachments:

GoogleCodeExporter commented 9 years ago 
I used the getTimeChartView() to get a view with 2 lines in it, and repeat this 
each second. someTimes one of the lines disappeared, this may happen onece in a 
minute. 

maybe the same problem?  

1.1.0 version, too.

Original comment by 304456...@qq.com on 28 Dec 2014 at 8:37