[英]Androidplot chart is duplicating label values x-axis & y-axis
我正在使用androidplot顯示圖形,標簽重復出現。 我搜索了論壇,並且stackoverflow尚未找到任何解決方案。
現在我注意到,如果x軸或y軸的arraysize小於10,則數組值將重復。
屏幕截圖顯示左軸重復值0,1,2。 x軸值越來越重復。 解決此重復標簽問題的最佳建議是什么? 任何幫助將不勝感激。 如果您需要任何進一步的信息,請告訴我。
/**
* A simple XYPlot
*/
public class SimpleXYPlotActivity extends Activity {
private XYPlot plot;
String[] domainLabels;
String oldDateStr, newDateStr;
Date newDate;
int totalDays;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.graph_xy_plot_example);
// initialize our XYPlot reference:
plot = (XYPlot) findViewById(R.id.plot);
Intent intent = getIntent();
Bundle bd = intent.getExtras();
DateFormat format = new SimpleDateFormat("yyyy-MM-dd", Locale.ENGLISH);
if (bd != null) {
oldDateStr = (String) bd.get("START_DATE");
newDateStr = (String) bd.get("END_DATE");
plot.setTitle("From: "+oldDateStr+" To: "+newDateStr);
try {
Date date1 = format.parse(oldDateStr);
Date date2 = format.parse(newDateStr);
long diff = date2.getTime() - date1.getTime();
totalDays = Integer.parseInt(String.valueOf(TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS)));
System.out.println ("Days: " + TimeUnit.DAYS.convert(diff, TimeUnit.MILLISECONDS));
} catch (ParseException e) {
e.printStackTrace();
}
}
SimpleDateFormat formatterDateGraph = new SimpleDateFormat("MMM d");
SimpleDateFormat formatterDate = new SimpleDateFormat("yyyy-MM-dd");
try {
newDate = format.parse(newDateStr);
} catch (ParseException e) {
e.printStackTrace();
}
DatabaseHandler db = new DatabaseHandler(this);
Calendar cal = GregorianCalendar.getInstance();
cal.setTime(newDate);
domainLabels= new String[totalDays];
Number[] series1Numbers = new Number[totalDays];
//domain 0 set outside loop for oldDateStr
domainLabels[0]=String.valueOf(formatterDateGraph.format(newDate.getTime()));
List<Orders> reportForDayList = db.getReportByTranType(oldDateStr, oldDateStr,"1");
series1Numbers[0]=reportForDayList.size();
for (int i = 1; i <totalDays ; i++) {
cal.add(Calendar.DAY_OF_YEAR, -1);
domainLabels[i] = String.valueOf(formatterDateGraph.format(cal.getTime()));
//fetch ordercount for that day
reportForDayList = db.getReportByTranType(formatterDate.format(cal.getTime()),formatterDate.format(cal.getTime()),"1");
series1Numbers[i]=reportForDayList.size();
}
series1Numbers = reverseSeries(series1Numbers);
domainLabels = reverseDomain(domainLabels);
//reverseNumber array
// domainLabels = reverseNumber(domainLabels);
// turn the above arrays into XYSeries':
// (Y_VALS_ONLY means use the element index as the x value)
XYSeries series1 = new SimpleXYSeries(
Arrays.asList(series1Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Sales");
/* XYSeries series2 = new SimpleXYSeries(
Arrays.asList(series2Numbers), SimpleXYSeries.ArrayFormat.Y_VALS_ONLY, "Series2");*/
// create formatters to use for drawing a series using LineAndPointRenderer
// and configure them from xml:
LineAndPointFormatter series1Format = new LineAndPointFormatter(Color.RED, Color.GREEN, Color.BLUE, null);
LineAndPointFormatter series2Format = new LineAndPointFormatter(Color.RED, Color.GREEN, Color.BLUE, null);
// add an "dash" effect to the series2 line:
/* series2Format.getLinePaint().setPathEffect(new DashPathEffect(new float[] {
// always use DP when specifying pixel sizes, to keep things consistent across devices:
PixelUtils.dpToPix(20),
PixelUtils.dpToPix(15)}, 0));*/
// just for fun, add some smoothing to the lines:
// see: http://androidplot.com/smooth-curves-and-androidplot/
series1Format.setInterpolationParams(
new CatmullRomInterpolator.Params(10, CatmullRomInterpolator.Type.Centripetal));
series2Format.setInterpolationParams(
new CatmullRomInterpolator.Params(10, CatmullRomInterpolator.Type.Centripetal));
// add a new series' to the xyplot:
plot.addSeries(series1, series1Format);
// plot.addSeries(series2, series2Format);
plot.getGraph().getLineLabelStyle(XYGraphWidget.Edge.LEFT).setFormat(new DecimalFormat("#"));
plot.getGraph().getLineLabelStyle(XYGraphWidget.Edge.BOTTOM).setFormat(new Format() {
@Override
public StringBuffer format(Object obj, StringBuffer toAppendTo, FieldPosition pos) {
int i = Math.round(((Number) obj).floatValue());
return toAppendTo.append(domainLabels[i]);
}
@Override
public Object parseObject(String source, ParsePosition pos) {
return null;
}
});
}
public static Number[] reverseSeries(Number[] a)
{
int l = a.length;
for (int j = 0; j < l / 2; j++)
{
Number temp = a[j];
a[j] = a[l - j - 1];
a[l - j - 1] = temp;
}
return a;
}
public static String[] reverseDomain(String[] a)
{
int l = a.length;
for (int j = 0; j < l / 2; j++)
{
String temp = a[j];
a[j] = a[l - j - 1];
a[l - j - 1] = temp;
}
return a;
}
}
您正在通過將6天的范圍轉換為長值,然后將這些值內的總范圍細分為10個不同的細分來創建域值:您無法從6天的范圍中獲得10天的標簽。
要解決此問題,您可以減少要顯示的域段的數量,也可以顯示更多天的數據。
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