组合图表 实时图表
Combined Chart Real-Time graph
我对 MPAndroidChart 的实时组合图表有点问题。我有两个不同的图表，它在两个单独的图表中工作，但我想合并为一个。主要问题是当值传入时，图中没有任何内容。我看到了，参考文献没问题。
这是我的代码：
private void IntialcombinedChart(){
mChart = (CombinedChart) findViewById(R.id.chartFetalandToco);
mChart.setDescription("");
mChart.setNoDataText("No data yet");
mChart.setDrawGridBackground(false);
mChart.setTouchEnabled(true);
mChart.setDragEnabled(true);
mChart.setScaleEnabled(true);
mChart.setDrawGridBackground(false);
mChart.setVisibleXRangeMaximum((float)10);
XAxis x1 = mChart.getXAxis();
x1.setDrawGridLines(false);
x1.setAxisMaxValue(1200);
x1.setAvoidFirstLastClipping(true);
YAxis y1 = mChart.getAxisLeft();
y1.setAxisMaxValue(255);
y1.setAxisMinValue(0);
y1.setDrawGridLines(true);
YAxis y12 = mChart.getAxisRight();
y12.setEnabled(false);
cData = new CombinedData();
cData.setData(new LineData());
cData.setData(new ScatterData());
mChart.setData(cData);
mChart.invalidate();
}
public ScatterDataSet createFetalSet(){
ScatterDataSet set = new ScatterDataSet(null,"Fetal");
set.setScatterShapeSize(7.5f);
set.setDrawValues(false);
set.setValueTextSize(10f);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[2]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
private LineDataSet createTocoSet(){
LineDataSet set = new LineDataSet(null,"Toco");
set.setDrawCircles(false);
set.setDrawCubic(true);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[3]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
public void AddFetalEntry(float sinValue){
CombinedData data = mChart.getData();
if (data != null) {
LineDataSet dataSetGraphA = (LineDataSet) data.getDataSetByIndex(0);
ScatterDataSet dataSetGraphB = (ScatterDataSet) data.getDataSetByIndex(1);
if (dataSetGraphA == null) {
dataSetGraphA = createTocoSet();
data.addDataSet(dataSetGraphA);
}
if (dataSetGraphB == null) {
dataSetGraphB = createFetalSet();
data.addDataSet(dataSetGraphB);
}
data.addXValue("");
data.addEntry(new Entry(sinValue, dataSetGraphA.getEntryCount()), 0);
data.addEntry(new Entry(sinValue, dataSetGraphB.getEntryCount()), 1);
data.notifyDataChanged();
// let the chart know it's data has changed
mChart.notifyDataSetChanged();
mChart.invalidate(); // refresh
mChart.setVisibleXRangeMaximum(2000);
//int valueCount = data.getXValCount();
mChart.moveViewToX(data.getXValCount() - 2000);
}
}
我认为我写了一个很好的代码，但它不起作用。我尝试了很多方法来解决这个问题，但我做不到。当图表上出现相同的值时，我会很高兴。
我希望有人能帮助我。
所以，我花了更多的时间来了解mpandroid图表系统。首先，我创建了一个带有数据集的空散点线数据和一个带有线数据集的空线数据。之后我不得不在组合数据中寻找这个图表数据，这是我从组合图表中得到的。
这是我的代码：
private void IntialcombinedChart(){
mChart = (CombinedChart) findViewById(R.id.chartFetalandToco);
mChart.setDescription("");
mChart.setNoDataText("No data yet");
mChart.setDrawGridBackground(false);
mChart.setTouchEnabled(true);
mChart.setDragEnabled(true);
mChart.setScaleEnabled(true);
mChart.setDrawGridBackground(false);
mChart.setVisibleXRangeMaximum((float)10);
XAxis x1 = mChart.getXAxis();
x1.setDrawGridLines(false);
x1.setAxisMaxValue(1200);
x1.setAvoidFirstLastClipping(true);
YAxis y1 = mChart.getAxisLeft();
y1.setAxisMaxValue(255);
y1.setAxisMinValue(0);
y1.setDrawGridLines(true);
YAxis y12 = mChart.getAxisRight();
y12.setEnabled(false);
mChart.getLegend().setEnabled(false);
cData = new CombinedData();
cData.setData(generateLineData());
cData.setData(generateScatterData());
mChart.setData(cData);
mChart.invalidate();
}
protected ScatterData generateScatterData() {
ScatterData d = new ScatterData();
d.addDataSet(createFetalSet());
return d;
}
private LineData generateLineData() {
LineData d = new LineData();
d.addDataSet(createTocoSet());
return d;
}
public ScatterDataSet createFetalSet(){
ScatterDataSet set = new ScatterDataSet(null,"Fetal");
set.setScatterShapeSize(10f);
set.setDrawValues(true);
set.setValueTextSize(10f);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[2]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
private LineDataSet createTocoSet(){
LineDataSet set = new LineDataSet(null,"Toco");
set.setDrawCircles(false);
set.setDrawCubic(true);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[3]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
public void AddFetalEntry(float sinValue){
fmDetected ++;
CombinedData data = mChart.getData();
if (data != null) {
ScatterData scatterDataData = data.getScatterData();
if(scatterDataData != null){
ScatterDataSet set = (ScatterDataSet) data.getDataSetByIndex(1);
if (set == null) {
set = createFetalSet();
data.addDataSet(set);
}
scatterDataData.addXValue("");
LineData tocoData = data.getLineData();
if(tocoData != null) {
LineDataSet pakk = (LineDataSet) data.getDataSetByIndex(0);
scatterDataData.addEntry(new Entry(sinValue,pakk.getEntryCount()-1), 0);
}
mChart.notifyDataSetChanged();
mChart.invalidate();
}
data.addXValue("");
data.notifyDataChanged();
// let the chart know it's data has changed
mChart.notifyDataSetChanged();
mChart.invalidate();
mChart.setVisibleXRangeMaximum(1200);
//int valueCount = data.getXValCount();
mChart.moveViewToX(data.getXValCount() - 7);
}
}
public void AddTocoEntry(float sinValue){
CombinedData data = mChart.getData();
if (data != null) {
LineData tocoData = data.getLineData();
if(tocoData != null){
LineDataSet set = (LineDataSet) data.getDataSetByIndex(0);
if (set == null) {
set = createTocoSet();
data.addDataSet(set);
}
tocoData.addXValue("");
tocoData.addEntry(new Entry(sinValue,set.getEntryCount()),0);
mChart.notifyDataSetChanged();
mChart.invalidate();
}
data.addXValue("");
data.notifyDataChanged();
// let the chart know it's data has changed
mChart.notifyDataSetChanged();
mChart.invalidate();
mChart.setVisibleXRangeMaximum(1200);
//int valueCount = data.getXValCount();
mChart.moveViewToX(data.getXValCount() - 7);
}
}
如果有人能帮助我，让我的代码看起来更好，我将不胜感激。 :)
试试这个：
ILineDataSet dataSetGraphA = (ILineDataSet) data.getDataSetByIndex(0);
IScatterDataSet dataSetGraphB = (IScatterDataSet) data.getDataSetByIndex(1);
并用实际数据初始化图表：
cData = new CombinedData();
cData.setData(generateLineData());
cData.setData(generateScatterData());
mChart.setData(cData);
private ScatterData generateScatterData() {
ScatterData d = new ScatterData();
ArrayList<Entry> entries = new ArrayList<Entry>();
for (int index = 0; index < 3; index++)
entries.add(new Entry(getRandom(20, 15), index));
ScatterDataSet set = new ScatterDataSet(entries, "Scatter DataSet");
set.setColor(Color.GREEN);
set.setScatterShapeSize(7.5f);
set.setDrawValues(false);
set.setValueTextSize(10f);
d.addDataSet(set);
return d;
}
private LineData generateLineData() {
LineData d = new LineData();
ArrayList<Entry> entries = new ArrayList<Entry>();
for (int index = 0; index < 3; index++)
entries.add(new Entry(index + 0.5f, getRandom(15, 5)));
LineDataSet set = new LineDataSet(entries, "Line DataSet");
set.setColor(Color.rgb(240, 238, 70));
set.setLineWidth(2.5f);
set.setCircleColor(Color.rgb(240, 238, 70));
set.setCircleRadius(5f);
set.setFillColor(Color.rgb(240, 238, 70));
set.setMode(LineDataSet.Mode.CUBIC_BEZIER);
set.setDrawValues(true);
set.setValueTextSize(10f);
set.setValueTextColor(Color.rgb(240, 238, 70));
set.setAxisDependency(YAxis.AxisDependency.LEFT);
d.addDataSet(set);
return d;
}
其余代码应该没问题。
我对 MPAndroidChart 的实时组合图表有点问题。我有两个不同的图表，它在两个单独的图表中工作，但我想合并为一个。主要问题是当值传入时，图中没有任何内容。我看到了，参考文献没问题。
这是我的代码：
private void IntialcombinedChart(){
mChart = (CombinedChart) findViewById(R.id.chartFetalandToco);
mChart.setDescription("");
mChart.setNoDataText("No data yet");
mChart.setDrawGridBackground(false);
mChart.setTouchEnabled(true);
mChart.setDragEnabled(true);
mChart.setScaleEnabled(true);
mChart.setDrawGridBackground(false);
mChart.setVisibleXRangeMaximum((float)10);
XAxis x1 = mChart.getXAxis();
x1.setDrawGridLines(false);
x1.setAxisMaxValue(1200);
x1.setAvoidFirstLastClipping(true);
YAxis y1 = mChart.getAxisLeft();
y1.setAxisMaxValue(255);
y1.setAxisMinValue(0);
y1.setDrawGridLines(true);
YAxis y12 = mChart.getAxisRight();
y12.setEnabled(false);
cData = new CombinedData();
cData.setData(new LineData());
cData.setData(new ScatterData());
mChart.setData(cData);
mChart.invalidate();
}
public ScatterDataSet createFetalSet(){
ScatterDataSet set = new ScatterDataSet(null,"Fetal");
set.setScatterShapeSize(7.5f);
set.setDrawValues(false);
set.setValueTextSize(10f);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[2]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
private LineDataSet createTocoSet(){
LineDataSet set = new LineDataSet(null,"Toco");
set.setDrawCircles(false);
set.setDrawCubic(true);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[3]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
public void AddFetalEntry(float sinValue){
CombinedData data = mChart.getData();
if (data != null) {
LineDataSet dataSetGraphA = (LineDataSet) data.getDataSetByIndex(0);
ScatterDataSet dataSetGraphB = (ScatterDataSet) data.getDataSetByIndex(1);
if (dataSetGraphA == null) {
dataSetGraphA = createTocoSet();
data.addDataSet(dataSetGraphA);
}
if (dataSetGraphB == null) {
dataSetGraphB = createFetalSet();
data.addDataSet(dataSetGraphB);
}
data.addXValue("");
data.addEntry(new Entry(sinValue, dataSetGraphA.getEntryCount()), 0);
data.addEntry(new Entry(sinValue, dataSetGraphB.getEntryCount()), 1);
data.notifyDataChanged();
// let the chart know it's data has changed
mChart.notifyDataSetChanged();
mChart.invalidate(); // refresh
mChart.setVisibleXRangeMaximum(2000);
//int valueCount = data.getXValCount();
mChart.moveViewToX(data.getXValCount() - 2000);
}
}
我认为我写了一个很好的代码，但它不起作用。我尝试了很多方法来解决这个问题，但我做不到。当图表上出现相同的值时，我会很高兴。
我希望有人能帮助我。
所以，我花了更多的时间来了解mpandroid图表系统。首先，我创建了一个带有数据集的空散点线数据和一个带有线数据集的空线数据。之后我不得不在组合数据中寻找这个图表数据，这是我从组合图表中得到的。
这是我的代码：
private void IntialcombinedChart(){
mChart = (CombinedChart) findViewById(R.id.chartFetalandToco);
mChart.setDescription("");
mChart.setNoDataText("No data yet");
mChart.setDrawGridBackground(false);
mChart.setTouchEnabled(true);
mChart.setDragEnabled(true);
mChart.setScaleEnabled(true);
mChart.setDrawGridBackground(false);
mChart.setVisibleXRangeMaximum((float)10);
XAxis x1 = mChart.getXAxis();
x1.setDrawGridLines(false);
x1.setAxisMaxValue(1200);
x1.setAvoidFirstLastClipping(true);
YAxis y1 = mChart.getAxisLeft();
y1.setAxisMaxValue(255);
y1.setAxisMinValue(0);
y1.setDrawGridLines(true);
YAxis y12 = mChart.getAxisRight();
y12.setEnabled(false);
mChart.getLegend().setEnabled(false);
cData = new CombinedData();
cData.setData(generateLineData());
cData.setData(generateScatterData());
mChart.setData(cData);
mChart.invalidate();
}
protected ScatterData generateScatterData() {
ScatterData d = new ScatterData();
d.addDataSet(createFetalSet());
return d;
}
private LineData generateLineData() {
LineData d = new LineData();
d.addDataSet(createTocoSet());
return d;
}
public ScatterDataSet createFetalSet(){
ScatterDataSet set = new ScatterDataSet(null,"Fetal");
set.setScatterShapeSize(10f);
set.setDrawValues(true);
set.setValueTextSize(10f);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[2]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
private LineDataSet createTocoSet(){
LineDataSet set = new LineDataSet(null,"Toco");
set.setDrawCircles(false);
set.setDrawCubic(true);
set.setDrawValues(false);
set.setColor(ColorTemplate.COLORFUL_COLORS[3]);
set.setAxisDependency(YAxis.AxisDependency.LEFT);
return set;
}
public void AddFetalEntry(float sinValue){
fmDetected ++;
CombinedData data = mChart.getData();
if (data != null) {
ScatterData scatterDataData = data.getScatterData();
if(scatterDataData != null){
ScatterDataSet set = (ScatterDataSet) data.getDataSetByIndex(1);
if (set == null) {
set = createFetalSet();
data.addDataSet(set);
}
scatterDataData.addXValue("");
LineData tocoData = data.getLineData();
if(tocoData != null) {
LineDataSet pakk = (LineDataSet) data.getDataSetByIndex(0);
scatterDataData.addEntry(new Entry(sinValue,pakk.getEntryCount()-1), 0);
}
mChart.notifyDataSetChanged();
mChart.invalidate();
}
data.addXValue("");
data.notifyDataChanged();
// let the chart know it's data has changed
mChart.notifyDataSetChanged();
mChart.invalidate();
mChart.setVisibleXRangeMaximum(1200);
//int valueCount = data.getXValCount();
mChart.moveViewToX(data.getXValCount() - 7);
}
}
public void AddTocoEntry(float sinValue){
CombinedData data = mChart.getData();
if (data != null) {
LineData tocoData = data.getLineData();
if(tocoData != null){
LineDataSet set = (LineDataSet) data.getDataSetByIndex(0);
if (set == null) {
set = createTocoSet();
data.addDataSet(set);
}
tocoData.addXValue("");
tocoData.addEntry(new Entry(sinValue,set.getEntryCount()),0);
mChart.notifyDataSetChanged();
mChart.invalidate();
}
data.addXValue("");
data.notifyDataChanged();
// let the chart know it's data has changed
mChart.notifyDataSetChanged();
mChart.invalidate();
mChart.setVisibleXRangeMaximum(1200);
//int valueCount = data.getXValCount();
mChart.moveViewToX(data.getXValCount() - 7);
}
}
如果有人能帮助我，让我的代码看起来更好，我将不胜感激。 :)
试试这个：
ILineDataSet dataSetGraphA = (ILineDataSet) data.getDataSetByIndex(0);
IScatterDataSet dataSetGraphB = (IScatterDataSet) data.getDataSetByIndex(1);
并用实际数据初始化图表：
cData = new CombinedData();
cData.setData(generateLineData());
cData.setData(generateScatterData());
mChart.setData(cData);
private ScatterData generateScatterData() {
ScatterData d = new ScatterData();
ArrayList<Entry> entries = new ArrayList<Entry>();
for (int index = 0; index < 3; index++)
entries.add(new Entry(getRandom(20, 15), index));
ScatterDataSet set = new ScatterDataSet(entries, "Scatter DataSet");
set.setColor(Color.GREEN);
set.setScatterShapeSize(7.5f);
set.setDrawValues(false);
set.setValueTextSize(10f);
d.addDataSet(set);
return d;
}
private LineData generateLineData() {
LineData d = new LineData();
ArrayList<Entry> entries = new ArrayList<Entry>();
for (int index = 0; index < 3; index++)
entries.add(new Entry(index + 0.5f, getRandom(15, 5)));
LineDataSet set = new LineDataSet(entries, "Line DataSet");
set.setColor(Color.rgb(240, 238, 70));
set.setLineWidth(2.5f);
set.setCircleColor(Color.rgb(240, 238, 70));
set.setCircleRadius(5f);
set.setFillColor(Color.rgb(240, 238, 70));
set.setMode(LineDataSet.Mode.CUBIC_BEZIER);
set.setDrawValues(true);
set.setValueTextSize(10f);
set.setValueTextColor(Color.rgb(240, 238, 70));
set.setAxisDependency(YAxis.AxisDependency.LEFT);
d.addDataSet(set);
return d;
}
其余代码应该没问题。