I’m using aChartEngine’s 0.7.0 charting library for Android. I have a working XY chart that changes dynamically about every second when new data is received. However, it draws the line chart from left to right and eventually moves out of view. The only way to see the new data being drawn is to scroll the chart view to the right.
Does anyone know how to make the line draw new data on the left side so that older data eventually scrolls right out of view. Basically, reversing the direction of the chart line?
I actually decided to go with the natural flow direction of aChartEngine’s dynamic line charts. I was able to lock the graph image so that the line no longer scrolls off the screen out of view. I also remove items from the beginning of the serires to keep a certain time span visible without the graph compressing into a mass of lines. It actually works really well.
Here’s a youtube video demonstrating the charts in action: http://www.youtube.com/watch?v=mZMrOc5QaG0