private void updateChart(int total) {
int numSubcolumns = 60;
int numColumns = 1000;
List<float[]> flist = new ArrayList<>();
// if (!Constants.Queue_DrawRealtimewaterfall.isEmpty()) {
// flist = Constants.Queue_DrawRealtimewaterfall.poll();
if (!Constants.Queue_DrawRealtimeSpectrum.isEmpty()) {
flist = Constants.Queue_DrawRealtimeSpectrum.poll();
int realsize = Constants.Queue_DrawRealtimeSpectrum.size();
if (realsize >= 5) Constants.Queue_DrawRealtimeSpectrum.clear();
List<Column> columns = new ArrayList<Column>();
List<SubcolumnValue> values;
if (flist.size() != total) {
// 没收到整段就返回
return;
}
float[] ff1 = selectData(flist);
if (Xvalues.size() > 0) {
int size = Xvalues.size();
for (int i = 0; i < size; i++) {
values = new ArrayList<SubcolumnValue>();
values = Xvalues.get(i);
for (int j = numSubcolumns - 1; j > 0; j--) {
values.set(j, values.get(j - 1));
}
// int color=ChartUtils.pickColor();
int index = (int) ((ff1[i] + 150) / 8);
int color = 0;
if (index >= 20) {
color = colors[19];
} else if (index < 0) {
color = colors[0];
} else {
color = colors[(int) ((ff1[i] + 150) / 8)];
}
values.set(0, new SubcolumnValue(1, color));
Column column = new Column(values);
columns.add(column);
}
}
data = new ColumnChartData(columns);
data.setStacked(true);
data.setFillRatio(1);
Axis axisX = new Axis(Lvalues);
Axis axisY = Axis.generateAxisFromRange(0, 60, 2);
axisY.setLineColor(Color.GREEN);
axisX.setHasLines(false);
axisX.setHasSeparationLine(false);
axisY.setHasSeparationLine(false);
axisY.setHasLines(false);
axisX.setName("Axis X");
axisY.setName("Axis Y");
data.setAxisXBottom(axisX);
data.setAxisYLeft(axisY);
chart.setColumnChartData(data);
}
}
/** Generates columns with stacked subcolumns. */
private void generateStackedData(int start, int end) {
int numSubcolumns = 60;
int numColumns = 1000;
List<Column> columns = new ArrayList<Column>();
List<SubcolumnValue> values;
Lvalues = new ArrayList<>();
Xvalues = new ArrayList<List<SubcolumnValue>>();
for (int i = 0; i < numColumns; ++i) {
values = new ArrayList<SubcolumnValue>();
if (i == 0) {
Lvalues.add(new AxisValue(i).setLabel(String.valueOf(start)));
} else if (i == numColumns - 30) {
Lvalues.add(new AxisValue(i).setLabel(String.valueOf(end)));
}
for (int j = 1; j <= numSubcolumns; ++j) {
values.add(new SubcolumnValue(1, Color.WHITE));
}
Column column = new Column(values);
column.setHasLabelsOnlyForSelected(hasLabelForSelected);
columns.add(column);
Xvalues.add(values);
}
data = new ColumnChartData(columns);
data.setStacked(true);
data.setFillRatio(1);
Axis axisX = new Axis(Lvalues);
axisX.setHasSeparationLine(false);
axisX.setHasLines(false);
Axis axisY = Axis.generateAxisFromRange(0, 60, 1);
axisY.setHasSeparationLine(false);
axisY.setHasLines(false);
axisY.setLineColor(Color.GREEN);
axisX.setName("Axis X");
axisY.setName("Axis Y");
data.setAxisXBottom(axisX);
data.setAxisYLeft(axisY);
chart.setColumnChartData(data);
}