public void onSensorChanged(SensorEvent event) {
String valuesString = "";
int counter = 0;
for (float value : event.values) {
valuesString += String.format("%d) %f ", counter++, value);
}
valuesString += " , " + pressureHistory.size();
textViewPressure.setText(valuesString);
double value = pressureSmoothingWin.push((double) event.values[0]);
// Number[] series1Numbers = {event.values[0], event.values[1],
// event.values[2]};
// get rid the oldest sample in history:
if (pressureHistory.size() > HISTORY_SIZE) {
pressureHistory.removeFirst();
}
// add the latest history sample:
pressureHistory.addLast(value); // event.values[0]);
value = altitudeSmoothingWin.push((double) event.values[1]);
if (altitudeHistory.size() > HISTORY_SIZE) {
altitudeHistory.removeFirst();
}
altitudeHistory.addLast(value); // event.values[0]);
value = tempSmoothingWin.push((double) event.values[2]);
if (tempHistory.size() > HISTORY_SIZE) {
tempHistory.removeFirst();
}
tempHistory.addLast(value);
if (cooler++ % 2 == 0) return;
// update the plot with the updated history Lists:
if (sensorId == 0) {
pressureHistorySeries.setModel(pressureHistory, SimpleXYSeries.ArrayFormat.Y_VALS_ONLY);
preHistoryPlot.setRangeLabel("Pressure (hPa)");
} else if (sensorId == 1) {
pressureHistorySeries.setModel(altitudeHistory, SimpleXYSeries.ArrayFormat.Y_VALS_ONLY);
preHistoryPlot.setRangeLabel("Altitude (m)");
} else {
pressureHistorySeries.setModel(tempHistory, SimpleXYSeries.ArrayFormat.Y_VALS_ONLY);
preHistoryPlot.setRangeLabel("Temperature (ºC)");
}
// redraw the Plots:
preHistoryPlot.redraw();
}
private void graphLine(Number X1, Number Y1, Number X2, Number Y2, SimpleXYSeries ser) {
LinkedList<Number> points = new LinkedList<Number>();
points.add(X1);
points.add(Y1);
points.add(X2);
points.add(Y2);
ser.setModel(points, ArrayFormat.XY_VALS_INTERLEAVED);
}
private void plotTemperatureHistory() {
SensorHistory temperatureLongHistory =
new SensorHistory(
Environment.getExternalStorageDirectory().getPath() + "/Sensors/temperature.dat");
longHistoryPlot.setRangeLabel("Temperature (ºC)");
longHistoryPlot.getRangeLabelWidget().pack();
longHistorySeries.setModel(temperatureLongHistory, SimpleXYSeries.ArrayFormat.Y_VALS_ONLY);
longHistoryPlot.redraw();
}
private void plotAltitudeHistory() {
SensorHistory altitudeLongHistory =
new SensorHistory(
Environment.getExternalStorageDirectory().getPath() + "/Sensors/altitude.dat");
longHistoryPlot.setRangeLabel("Altitude (m)");
longHistoryPlot.getRangeLabelWidget().pack();
longHistorySeries.setModel(altitudeLongHistory, SimpleXYSeries.ArrayFormat.Y_VALS_ONLY);
longHistoryPlot.redraw();
}
