Trouble getting axis centered on Origo in AChartEngine

问题

I'm having trouble getting AChartEngine to center the actual visible axises on Origo instead of having them along the left- and bottom of the chart.

I need to have the axises like so:

Any ideas?

(This question is similar to question #2 [2]: Make x-axis in vertical center using AChartEngine but I thought that a more specific question might get an answer)

回答1:

I made some modifications to AChartEngine 1.0.0 to make it possible to display axises in the center of the plot. Use code below to set the axises to center.

XYMultipleSeriesRenderer.setXAxisAlign(Align.CENTER, 0);
XYMultipleSeriesRenderer.setYAxisAlign(Align.CENTER, 0);

XYMultipleSeriesRenderer.patch
XYChart.patch

And here is an example on how it may look

回答2:

There isn't a better answer than the one you mentioned. Just make sure that you calculate X and Y ranges such as your data fits inside and also make sure that the range you set is centered on the 0 point:

renderer.setXAxisMin(-value);
randerer.setXAxisMax(value);

and the same for the Y axis.

来源：https://stackoverflow.com/questions/12156801/trouble-getting-axis-centered-on-origo-in-achartengine