Dynamic XY plot

[Aakash16]

can any one explain me why the plot is not dynamic ... it gets plotted an once... public void plot() {

//eData is having data to be plotted //xView initialised to 10. for (int y =0; y <1000; y++) {

        Series.appendData(
                new GraphViewData(graph2LastXValue, Double
                        .parseDouble(eData[y])), AutoScrollX);

        // X-axis control
        if (graph2LastXValue >= Xview) {
         Series.resetData(new GraphViewData[] {});
         graph2LastXValue = 0;
        } else
        graph2LastXValue += 0.1;
            graphView.setViewPort(Xview, Xview+graph2LastXValue);

                      GraphView.removeView(graphView);
              GraphView.addView(graphView);

    }

    }

[MarcDahlem]

It is not plotted dynamically, because you insert and run the loop at the same time. As soon as a new value is added with 'appendData', the graph is refreshed.

If you want a kind of 'animation', you need to do at least a Thread.sleep(time_between_two_points).

[Aakash16]

thanks MarcDahlem, actually i want to pick a value from array and display it by appending to the series... thats why i thought of using for loop.... is there a way to plot series from array and display dynamically ..... so that it seems like a real time graph plot....

[MarcDahlem]

You could simulate this behaviour for example with a timer:

private class MyTimerTask extends TimerTask {
  Random random;
  int counter;

  public MyTimerTask() {
      this.counter=0;
      this.random=new Random();
  }

  @Override
  public void run() {
      appendData...
      if (counter++ <=100) {
          //setup new timer
          int nextTime=MainActivity.MIN_DELAY+random.nextInt(MainActivity.MAX_TIMER_DEVIATION);
          MainActivity.this.timer.schedule(this, nextTime);
    }
  }
}

And in your MainActivity you need to start a single timer with this timertask.