public Axis xAxis() {
Axis xAxis = new Axis();
xAxis.setAutoGenerated(false);
List<AxisValue> xAxisValues = new ArrayList<AxisValue>();
GregorianCalendar now = new GregorianCalendar();
GregorianCalendar today =
new GregorianCalendar(
now.get(Calendar.YEAR), now.get(Calendar.MONTH), now.get(Calendar.DAY_OF_MONTH));
final java.text.DateFormat timeFormat = hourFormat();
timeFormat.setTimeZone(TimeZone.getDefault());
double start_hour_block = today.getTime().getTime();
double timeNow = new Date().getTime();
for (int l = 0; l <= 24; l++) {
if ((start_hour_block + (60000 * 60 * (l))) < timeNow) {
if ((start_hour_block + (60000 * 60 * (l + 1))) >= timeNow) {
endHour = start_hour_block + (60000 * 60 * (l));
l = 25;
}
}
}
for (int l = 0; l <= 24; l++) {
double timestamp = (endHour - (60000 * 60 * l));
xAxisValues.add(
new AxisValue((long) (timestamp / FUZZER), (timeFormat.format(timestamp)).toCharArray()));
}
xAxis.setValues(xAxisValues);
xAxis.setHasLines(true);
xAxis.setTextSize(axisTextSize);
return xAxis;
}
public Axis yAxis() {
Axis yAxis = new Axis();
yAxis.setAutoGenerated(false);
List<AxisValue> axisValues = new ArrayList<AxisValue>();
// for(int j = 1; j <= 12; j += 1) {
// if (doMgdl) {
// axisValues.add(new AxisValue(j * 50));
// } else {
// axisValues.add(new AxisValue(j*2));
// }
// }
axisValues.add(new AxisValue(240));
axisValues.add(new AxisValue((int) this.lowMark));
axisValues.add(new AxisValue((int) this.highMark));
yAxis.setValues(axisValues);
yAxis.setHasLines(true);
yAxis.setLineColor(Color.parseColor("#555555"));
yAxis.setMaxLabelChars(5);
yAxis.setInside(true);
yAxis.setTextSize(axisTextSize);
yAxis.setTextColor(Color.parseColor("#8D8D8D"));
yAxis.setHasTiltedLabels(true);
return yAxis;
}
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);
}
}
public Axis previewXAxis() {
List<AxisValue> previewXaxisValues = new ArrayList<AxisValue>();
final java.text.DateFormat timeFormat = hourFormat();
timeFormat.setTimeZone(TimeZone.getDefault());
for (int l = 0; l <= 24; l += hoursPreviewStep) {
double timestamp = (endHour - (60000 * 60 * l));
previewXaxisValues.add(
new AxisValue((long) (timestamp / FUZZER), (timeFormat.format(timestamp)).toCharArray()));
}
Axis previewXaxis = new Axis();
previewXaxis.setValues(previewXaxisValues);
previewXaxis.setHasLines(true);
previewXaxis.setTextSize(previewAxisTextSize);
return previewXaxis;
}
/** 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);
}
// 产生数据 实时
/////////////////////////////////////////////////////////////////////////////////////////
private void generateInitialLineData() {
int numValues = 19;
List<AxisValue> axisValues = new ArrayList<AxisValue>();
List<PointValue> values = new ArrayList<PointValue>();
for (int i = 0; i < numValues; ++i) {
values.add(new PointValue(i, 0));
axisValues.add(new AxisValue(i).setLabel(days[i]));
}
Line line = new Line(values);
line.setColor(ChartUtils.COLOR_BLUE);
line.setHasPoints(false);
line.getShape();
line.setCubic(false); // 平滑
List<Line> lines = new ArrayList<Line>();
lines.add(line);
// lines.add(line1);
// lines.add(line2);
Axis axisX = new Axis(axisValues);
Axis axisY = new Axis().setHasLines(true);
if (hasAxesNames) {
axisX.setName("时间间隔");
// axisY.setName("温度");
axisX.setTextColor(ChartUtils.HOLO_BLUE_DARK);
axisY.setTextColor(ChartUtils.HOLO_BLUE_DARK);
}
lineData = new LineChartData(lines);
lineData.setAxisXBottom(axisX.setHasLines(true));
lineData.setAxisYLeft(axisY.setMaxLabelChars(4));
realeChartTop.setLineChartData(lineData);
// For build-up animation you have to disable viewport recalculation.
// 建立动画你必须禁用视图重新计算。
realeChartTop.setViewportCalculationEnabled(false);
// And set initial max viewport and current viewport- remember to set viewports after data.
// 设置初始值和当前视口视口记得要在数据集视图。
Viewport v = new Viewport(0, 50, 20, -10);
realeChartTop.setMaximumViewport(v);
realeChartTop.setCurrentViewport(v);
realeChartTop.setZoomType(ZoomType.HORIZONTAL);
// toggleFilled();
// toggleLabels();
toggleAxesNames();
}
///////// AXIS RELATED//////////////
public Axis yAxis() {
Axis yAxis = new Axis();
yAxis.setAutoGenerated(false);
List<AxisValue> axisValues = new ArrayList<AxisValue>();
for (int j = 1; j <= 12; j += 1) {
if (doMgdl) {
axisValues.add(new AxisValue(j * 50));
} else {
axisValues.add(new AxisValue(j * 2));
}
}
yAxis.setValues(axisValues);
yAxis.setHasLines(true);
yAxis.setMaxLabelChars(5);
yAxis.setInside(true);
yAxis.setTextSize(axisTextSize);
return yAxis;
}
private void updateGraph(Cursor cursor) {
// set up the goal line
SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
int goalCalories = Integer.parseInt(prefs.getString("preference_calorie_goal", "2000"));
List<PointValue> goalValues = new ArrayList<>();
// set up the data
List<PointValue> values = new ArrayList<>();
cursor.moveToFirst();
if (!cursor.isAfterLast()) {
goalValues.add(new PointValue(getTimeFromRow(cursor), goalCalories));
}
while (cursor.isAfterLast() == false) {
float value = cursor.getFloat(cursor.getColumnIndex("total"));
// Log.d("graph", "adding " + value + " on " + sdf.format(getTimeFromRow(cursor)));
values.add(new PointValue(getTimeFromRow(cursor), value));
cursor.moveToNext();
}
cursor.moveToLast();
goalValues.add(new PointValue(getTimeFromRow(cursor), goalCalories));
List<Line> lines = new ArrayList<Line>();
Line goalLine = new Line(goalValues).setColor(Color.parseColor("#ff0000"));
lines.add(goalLine);
Line line = new Line(values).setColor(Color.parseColor("#44a134")).setCubic(true);
// line.setFilled(true);
// line.setHasLabels(true);
lines.add(line);
LineChartData data = new LineChartData();
data.setLines(lines);
Axis timeAxis = new Axis();
// timeAxis.setName("");
// timeAxis.setTextColor(ChartUtils.COLOR_ORANGE);
timeAxis.setMaxLabelChars(5);
timeAxis.setFormatter(new TimestampAxisFormatter());
timeAxis.setHasLines(true);
timeAxis.setHasTiltedLabels(true);
data.setAxisXBottom(timeAxis);
Axis calorieAxis = new Axis();
// weightAxis.setName("");
// weightAxis.setTextColor(ChartUtils.COLOR_GREEN);
calorieAxis.setMaxLabelChars(7);
calorieAxis.setFormatter(new SimpleAxisValueFormatter().setAppendedText(" C".toCharArray()));
calorieAxis.setHasLines(true);
calorieAxis.setHasTiltedLabels(true);
data.setAxisYLeft(calorieAxis);
hellochart.setLineChartData(data);
hellochart.setZoomType(ZoomType.HORIZONTAL);
hellochart.setOnValueTouchListener(new ValueTouchListener());
// set up zoom so we can see 0 calories
Viewport viewport = new Viewport(hellochart.getMaximumViewport());
viewport.bottom = 0;
hellochart.setMaximumViewport(viewport);
hellochart.setCurrentViewport(viewport);
hellochart.invalidate();
}
public Axis chartXAxis() {
Axis xAxis = xAxis();
xAxis.setTextSize(axisTextSize);
return xAxis;
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.graph);
// generate Dates
Calendar calendar = Calendar.getInstance();
Date d1 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d2 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d3 = calendar.getTime();
Date d4 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d5 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d6 = calendar.getTime();
Date d7 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d8 = calendar.getTime();
calendar.add(Calendar.DATE, 1);
Date d9 = calendar.getTime();
GraphView graph = (GraphView) findViewById(R.id.graph);
// you can directly pass Date objects to DataPoint-Constructor
// this will convert the Date to double via Date#getTime()
LineGraphSeries<DataPoint> series =
new LineGraphSeries<DataPoint>(
new DataPoint[] {
new DataPoint(d1, 1),
new DataPoint(d2, 5),
new DataPoint(d3, 3),
new DataPoint(d4, 4),
new DataPoint(d5, 6),
new DataPoint(d6, 5),
new DataPoint(d7, 7),
new DataPoint(d8, 4),
new DataPoint(d9, 6),
});
series.setColor(getResources().getColor(android.R.color.holo_green_dark));
LineGraphSeries<DataPoint> series2 =
new LineGraphSeries<DataPoint>(
new DataPoint[] {
new DataPoint(d1, 2),
new DataPoint(d2, 3),
new DataPoint(d3, 3),
new DataPoint(d4, 4),
new DataPoint(d5, 5),
new DataPoint(d6, 5),
new DataPoint(d7, 7),
new DataPoint(d8, 4),
new DataPoint(d9, 6),
});
series.setColor(getResources().getColor(android.R.color.holo_red_dark));
graph.addSeries(series);
graph.addSeries(series2);
// set date label formatter
graph
.getGridLabelRenderer()
.setLabelFormatter(new DateAsXAxisLabelFormatter(NativeGraphActivity.this));
graph.getGridLabelRenderer().setNumHorizontalLabels(8); // only 4 because of the space
// set manual x bounds to have nice steps
graph.getViewport().setMinX(d1.getTime());
graph.getViewport().setMaxX(d9.getTime());
graph.getViewport().setXAxisBoundsManual(true);
lecho.lib.hellocharts.view.LineChartView chartView = (LineChartView) findViewById(R.id.chart);
List<PointValue> values = new ArrayList<PointValue>();
values.add(new PointValue(0, 2));
values.add(new PointValue(1, 4));
values.add(new PointValue(2, 3));
values.add(new PointValue(3, 4));
// In most cased you can call data model methods in builder-pattern-like manner.
Line line =
new Line(values)
.setColor(getResources().getColor(android.R.color.holo_red_dark))
.setCubic(false);
List<Line> lines = new ArrayList<Line>();
lines.add(line);
LineChartData data = new LineChartData();
data.setLines(lines);
Axis axis = new Axis();
axis.setHasTiltedLabels(true);
data.setAxisXBottom(new Axis().setAutoGenerated(true));
data.setAxisYLeft(new Axis().setAutoGenerated(true));
data.setBaseValue(20);
chartView.setLineChartData(data);
}