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我正在使用DynamicTimeSeriesCollection將測量值從串行端口繪製到我的圖中。 我想使用我在其他帖子中找到的代碼。DynamicTimeSeriesCollection和串行通信
我要實現的是這樣的：從另一個職位 Using JFreeChart to display recent changes in a time series
代碼，我發現：
How to combine Java plot code and Java serial code to read Arduino sensor value?
1. Move dataset and newData up to become instance variables:
DynamicTimeSeriesCollection dataset;
float[] newData = new float[1];
2. Add a method that appends your data to the chart's dataset:
public synchronized void addData(byte[] chunk) {
for (int i = 0; i < chunk.length; i++) {
newData[0] = chunk[i];
dataset.advanceTime();
dataset.appendData(newData);
}
}
3. Invoke the method from serialEvent():
demo.addChunk(chunk);
這裏是SerialCommunication類中我的序列事件方法：
public void serialEvent(SerialPortEvent oEvent) {
if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
try
{
Date d = new Date();
SimpleDateFormat dt = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
String datetime = dt.format(d);
String inputLine = input.readLine();
String[] measurements = inputLine.split(",");
double humidity = Double.parseDouble(measurements[0]);
double temp = Double.parseDouble(measurements[1]);
double ldr = Double.parseDouble(measurements[2]);
humidityList.add(humidity);
tempList.add(temp);
ldrList.add(ldr);
System.out.println(datetime+" > "+inputLine);
}
catch (Exception e) {
System.err.println(e.toString());
}
}
}
和ArrayList的串口通信類：
private ArrayList<Double> humidityList = new ArrayList<Double>();
private ArrayList<Double> tempList = new ArrayList<Double>();
private ArrayList<Double> ldrList = new ArrayList<Double>();
這裏是我怎麼沒在GUI類中聲明的ArrayList：
private static ArrayList<Double> m1;
private static ArrayList<Double> m2;
private static ArrayList<Double> m3;
public GUI(final String title,ArrayList<Double> humidity,ArrayList<Double> temp,ArrayList<Double> ldr)
{
super(title);
m1 = humidity;
m2 = temp;
m3 = ldr;
我也嘗試修改了我與我的測量，但沒有運氣找到代碼。任何想法我怎麼能做到這一點？