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コア プロットを使用して x 軸に月をプロットし、y 軸に 200 の倍数が必要です。これまで Excel シートから取得していたこのデータに加えて、誰かが私を助けてくれます。前もって感謝します....

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4 に答える 4

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このコードのように、あなたが望むことをしました。申し訳ありませんが、ここではコードを明確にしませんが、ここで使用しているものをメソッド全体に貼り付けます。

これがあなたが望むものに役立つことを願っています。ここでは、テーブルビューのように更新できる新しい方法でグラフを実装しました。配列の値を変更してから [graph reloadData] を呼び出します。

- (void)constructScatterPlotForFeedback
 {
// Create graph from theme
[graph release];

graph = [[CPXYGraph alloc] initWithFrame:CGRectZero];
graph.delegate = self;
CPTheme *theme = [CPTheme themeNamed:kCPPlainWhiteTheme];
[graph applyTheme:theme];
feedbackChart.hostedGraph = graph;
[feedbackChart setBackgroundColor:[UIColor clearColor]];

graph.paddingLeft = 0.0;
graph.paddingTop = 0.0;
graph.paddingRight = 0.0;
graph.paddingBottom = 0.0;

graph.plotAreaFrame.paddingLeft = 5.0;
graph.plotAreaFrame.paddingTop = 10.0;
graph.plotAreaFrame.paddingRight = 10.0;
graph.plotAreaFrame.paddingBottom = 10.0;

NSTimeInterval oneHour =  60 * 60;

// Setup plot space
CPXYPlotSpace *plotSpace = (CPXYPlotSpace *)graph.defaultPlotSpace;
plotSpace.allowsUserInteraction = YES;
plotSpace.delegate = self;

float xRange;
xRange = [chartData count] + 1.0;

if (xRange>5) {
    xRange = 5.0;
}
plotSpace.xRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(0.0) length:CPDecimalFromFloat(fiveHour*3)];
plotSpace.yRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(-20.0) length:CPDecimalFromFloat(40.0)];


CPLineStyle *gridline = [CPLineStyle lineStyle];
gridline.lineColor = [CPColor grayColor];
gridline.lineWidth = 1.0f;  

// Axes
CPXYAxisSet *axisSet = (CPXYAxisSet *)graph.axisSet;
    CPXYAxis *x = axisSet.xAxis;
   //   x.orthogonalCoordinateDecimal = CPDecimalFromString(@"0");
x.majorIntervalLength = CPDecimalFromFloat(fiveHour);
 //x.majorIntervalLength = CPDecimalFromFloat(10.0);
//x.majorIntervalLength = CPDecimalFromString(@"10");
x.minorTicksPerInterval = 0;
x.labelOffset=0;
   //   x.labelingPolicy = CPAxisLabelingPolicyNone;

 NSDate *refDate = [NSDate date];
 NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
  //    dateFormatter.dateStyle = kCFTimeZoneNameStyleShortGeneric;
 dateFormatter.dateFormat = @"HH:mm:ss";
  //    dateFormatter.dateStyle = kCFDateFormatterShortStyle;
CPTimeFormatter *timeFormatter = [[[CPTimeFormatter alloc] init   WithDateFormatter:dateFormatter] autorelease];
timeFormatter.referenceDate = refDate;
x.labelFormatter = timeFormatter;

//NSLog(@"refence date : %@", timeFormatter);
CPXYAxis *y = axisSet.yAxis;

y.minorTicksPerInterval = 0;
y.orthogonalCoordinateDecimal = CPDecimalFromString(@"0.0");
y.majorIntervalLength = CPDecimalFromString(@"5");
y.majorGridLineStyle = nil;
   //y.visibleRect 

 y.visibleRange = [CPPlotRange plotRangeWithLocation:CPDecimalFromFloat(-20.0f)   length:CPDecimalFromFloat(40.0f)];
CPConstraints yConstraints = {CPConstraintNone, CPConstraintFixed};
y.isFloatingAxis=YES;
y.constraints=yConstraints;

    // Create a green plot area
CPScatterPlot *dataSourceLinePlot = [[[CPScatterPlot alloc] init] autorelease];
   dataSourceLinePlot.identifier = @"FeedBack Plot";
dataSourceLinePlot.dataLineStyle.lineWidth = 3.f;
dataSourceLinePlot.dataLineStyle.lineColor = [CPColor blackColor];
dataSourceLinePlot.dataLineStyle.dashPattern = [NSArray arrayWithObjects:[NSNumber numberWithFloat:1.0f], [NSNumber numberWithFloat:1.0f], nil];
dataSourceLinePlot.dataSource = self;

// Animate in the new plot, as an example
dataSourceLinePlot.opacity = 0.0f;
dataSourceLinePlot.cachePrecision = CPPlotCachePrecisionDecimal;


CABasicAnimation *fadeInAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];
fadeInAnimation.duration = 1.0f;
fadeInAnimation.removedOnCompletion = NO;
fadeInAnimation.fillMode = kCAFillModeForwards;
fadeInAnimation.toValue = [NSNumber numberWithFloat:1.0];
[dataSourceLinePlot addAnimation:fadeInAnimation forKey:@"animateOpacity"];

CPColor *areaColor1 = [CPColor colorWithComponentRed:0.3 green:0.3 blue:1.0 alpha:0.8];
CPGradient *areaGradient1 = [CPGradient gradientWithBeginningColor:areaColor1 endingColor:[CPColor clearColor]];
areaGradient1.angle = -90.0f;

NSUInteger i;

[graph addPlot:dataSourceLinePlot];

NSMutableArray *contentArray1 = [NSMutableArray arrayWithCapacity:100];

NSMutableArray *customTickLocations = [[NSMutableArray alloc] init];
NSMutableArray *xAxisLabels = [[NSMutableArray alloc] init];
for ( i = 0; i < [chartData count]; i++ ) {
//for ( i = 0; i < 10; i++ ) {  
    [customTickLocations addObject:[NSDecimalNumber numberWithInt:i]];
    [xAxisLabels addObject:[NSString stringWithFormat:@"%0.1f", 5.0 * i]];
    Pulse *objPulse1 = (Pulse *)[chartData objectAtIndex:i];
          //id x = [NSNumber numberWithFloat:i*fiveHour];
    id x = [NSNumber numberWithFloat:i];
    id y = [NSNumber numberWithFloat:[objPulse1.feedBack floatValue]];
    NSLog(@"point of gragh for Performance x:%@, y : %@ ", x, y);
    [contentArray1 addObject:[NSMutableDictionary dictionaryWithObjectsAndKeys:x, @"x", y, @"y", nil]];
}

NSLog(@"Axis lable count : %d", [xAxisLabels count]);
NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[chartData count]];
NSUInteger labelLocation = 0;

for (NSNumber *tickLocation in customTickLocations) {
    NSLog(@">>>>>>>>>>>>>>>>> tick location");
    CPAxisLabel *newLabel = [[CPAxisLabel alloc] initWithText: [xAxisLabels objectAtIndex:labelLocation++] textStyle:x.labelTextStyle];
    newLabel.tickLocation = [tickLocation decimalValue];
    newLabel.offset = x.labelOffset + x.majorTickLength - 5.0f;
     // newLabel.rotation = M_PI/(2);
    newLabel.rotation = 0;
    [customLabels addObject:newLabel];
    [newLabel release];
}

x.axisLabels =  [NSSet setWithArray:customLabels];

  //    [arrScatter removeAllObjects];
arrScatter = contentArray1;
[arrScatter retain];
  //    NSLog(@">>>>>>>>>>>> :%d", [arrScatter count]);
   }

  -(NSUInteger)numberOfRecordsForPlot:(CPPlot *)plot 
  {

if ( [(NSString *)plot.identifier isEqualToString:@"FeedBack Plot"] ) {
    return [chartData count];
   //       return 10;
}

return 0;
   }


  -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:( NSUInteger)index
   {
switch ( fieldEnum ) {
    case CPScatterPlotFieldX:
        return (NSDecimalNumber *)[NSDecimalNumber numberWithUnsignedInteger:index*fiveHour];
    case CPScatterPlotFieldY:
    {
        Pulse *objPulse1 = (Pulse *)[chartData objectAtIndex:index];
        return [NSNumber numberWithFloat:[objPulse1.feedBack floatValue]];          
    }
}
return nil;
   }

   -(CGPoint)plotSpace:(CPPlotSpace *)space willDisplaceBy:(CGPoint)displacement {

  //    NSLog(@">>>>>>>>>>>>>>>>>> : %f", displacement.x);
   return CGPointMake(displacement.x, 0);
   }


  /*
  -(NSNumber *)numberForPlot:(CPPlot *)plot field:(NSUInteger)fieldEnum recordIndex:   (NSUInteger)index 
  {
     NSDecimalNumber *num = nil;

if ( [(NSString *)plot.identifier isEqualToString:@"FeedBack Plot"] ) {
    if ( [arrScatter count] != 0) {
        num = [[arrScatter objectAtIndex:index] valueForKey:(fieldEnum == CPScatterPlotFieldX ? @"x" : @"y")];
    }
}
   return num;
   }
   */

    -(CPLayer *)dataLabelForPlot:(CPPlot *)plot recordIndex:(NSUInteger)index {

    Pulse *objPulse1 = (Pulse *)[chartData objectAtIndex:index];
    float value = [objPulse1.feedBack floatValue];       
    //CPTextLayer *textLayer = [[CPTextLayer alloc] initWithText:[NSString stringWithFormat:@"%d", value]];

    CPTextStyle *textStyle = [CPTextStyle textStyle];
    textStyle.color = [CPColor blackColor];

    CPTextLayer *textLayer = [[CPTextLayer alloc] initWithText:[NSString stringWithFormat:@"%0.1f", value] style:textStyle];
    return textLayer;
 }
于 2012-06-04T07:04:35.373 に答える
0

以下は、最近のプロジェクトから取ったサンプル コードです。私の x 軸データは NSDates の配列でした。axisSet を通常どおりに設定し、以下のコードを追加しました。

axisSet.xAxis.labelingPolicy = CPTAxisLabelingPolicyNone;

NSMutableArray *countingXPoints=[[NSMutableArray alloc] init];
NSMutableArray *datesAsStrings=[[NSMutableArray alloc] init];

NSDateFormatter *df=[[NSDateFormatter alloc] init];
[df setDateFormat:@"MM-yy"];

for(int i=0; i<[self.xAxisData count]; i++)
{
    [countingXPoints addObject:[NSNumber numberWithInt:i]];
    [datesAsStrings addObject:[df stringFromDate:[self.xAxisData objectAtIndex:i]]];
}

NSArray *xCustomTickLocations = [NSArray arrayWithArray:(NSArray *)countingXPoints];
NSArray *xAxisLabels = [NSArray arrayWithArray:(NSArray *) datesAsStrings];
NSUInteger xLabelLocation = 0;
NSMutableArray *xCustomLabels = [[NSMutableArray alloc] initWithCapacity:[xAxisLabels count]];
for (NSNumber *xTickLocation in xCustomTickLocations)
{
    CPTAxisLabel *newXLabel = [[CPTAxisLabel alloc] initWithText: [xAxisLabels objectAtIndex:xLabelLocation++] textStyle:axisSet.xAxis.labelTextStyle];

    newXLabel.tickLocation = [xTickLocation decimalValue];
    newXLabel.offset = 0.0f;
    newXLabel.rotation = M_PI/4.0;
    [xCustomLabels addObject:newXLabel];
}

axisSet.xAxis.axisLabels=[NSSet setWithArray:xCustomLabels];

質問の y 軸部分については、目盛り間隔 (CPTXYAxis の属性) を調整できます。正しい軸の高さ/長さを実現するには、プロットスペースの xRange、yRange、globalXRange、および globalYRance 属性を調べます。

于 2012-06-04T06:32:04.470 に答える
0

他の回答に記載されているように、CPTTimeFormatter の代わりに CPTCalendarFormatter を使用してください。CPTTimeFormatter は、時間間隔のオフセットを秒単位で設定する必要がある場合 (例: 時間 = 60*60、日 = 24*60*60) に適していますが、月の日数/秒は可変 (30*24*60*60 または31*24*60*60、28、閏年など)。CPTCalendarFormatter を使用すると、ラベルの日付計算のカレンダー単位を決定できます。このように、基準日と基準暦単位を固定し、datasource メソッドで、基準日から始まるそれらの単位の数を返す必要があります。

これが完全なコードです。お楽しみください。

viewDidLoad または他の場所で、グラフを初期化します。

[...]

// Graph host view
CPTGraphHostingView* hostView = [[CPTGraphHostingView alloc] initWithFrame:self.view.frame];
[self.view addSubview: hostView];

// Your graph
CPTGraph* graph = [[CPTXYGraph alloc] initWithFrame:hostView.bounds];
hostView.hostedGraph = graph;
CPTXYAxisSet *axisSet = (CPTXYAxisSet *)[graph axisSet];    

// xAxis configuration
CPTXYAxis *xAxis = [axisSet xAxis];
[xAxis setLabelingPolicy:CPTAxisLabelingPolicyFixedInterval];
// Prepare dateFormat for current Locale, we want "JAN 2014" "FEB 2014" and so on
NSString *dateComponents = @"MMMYY";
NSString *localDateFormat = [NSDateFormatter dateFormatFromTemplate:dateComponents options:0 locale:[NSLocale currentLocale]];
NSDateFormatter *labelDateFormatter=[[NSDateFormatter alloc] init];
labelDateFormatter.dateFormat=localDateFormat;    
// Set xAxis date Formatter
CPTCalendarFormatter *xDateYearFormatter = [[CPTCalendarFormatter alloc] initWithDateFormatter:labelDateFormatter];
//Keep in mind this reference date, it will be used to calculate NSNumber in dataSource method
xDateYearFormatter.referenceDate = [NSDate dateWithTimeIntervalSince1970:0];
xDateYearFormatter.referenceCalendarUnit=NSMonthCalendarUnit;    
[xAxis setLabelFormatter:xDateYearFormatter];

// yAxis configuration
CPTXYAxis *yAxis = [axisSet yAxis];
[yAxis setMajorIntervalLength:CPTDecimalFromFloat(_YOURYINTERVAL_)];
[yAxis setLabelingPolicy:CPTAxisLabelingPolicyFixedInterval];
[yAxis setLabelFormatter:_YOURYFORMATTER_];
[yAxis setAxisConstraints:[CPTConstraints constraintWithLowerOffset:0.0]]

// Get the (default) plotspace from the graph so we can set its x/y ranges
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *) graph.defaultPlotSpace;
NSDate *startDate=_YOURSTARTINGDATE_
//Number of months since the reference date
NSInteger xStart=[[[NSCalendar currentCalendar] components: NSCalendarUnitMonth
                                 fromDate: xDateYearFormatter.referenceDate
                                   toDate: _YOURSTARTINGDATE_
                                  options: 0] month];    
[plotSpace setXRange: [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInteger(xStart)     length:CPTDecimalFromInteger(_YOURDATESARRAY_.count-1)]];
[plotSpace setYRange: [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0.0) length:CPTDecimalFromFloat(_YOURMAXYVALUE_)]];

[...]

軸上の値を返すデータソース メソッド:

 -(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)index
{
    switch (fieldEnum) {

        case CPTScatterPlotFieldX: {

            NSInteger monthsOffset=[[[NSCalendar currentCalendar] components: NSCalendarUnitMonth  fromDate: [NSDate dateWithTimeIntervalSince1970:0] toDate: [_YOURDATESARRAY_ objectAtIndex:index] options: 0] month];                
            NSNumber *val = [NSNumber numberWithInteger:monthsOffset];    
            return val;
            break;
        }
        case CPTScatterPlotFieldY: {
            NSNumber *val=_YOURVALUEFORYAXIS_;
            return val;
            break;
        }
        default:
            break;
    }

    return nil;
}
于 2014-10-30T20:08:38.927 に答える
-1

答えが少し遅れましたが、たまたまこれを行ったばかりです：

まず、ラベルを定義する必要があります。

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"MMM"]; CPTTimeFormatter *timeFormatter = [[CPTTimeFormatter alloc] initWithDateFormatter:dateFormatter];

これにより、Jan、Feb、Mar などの結果が得られます。

次に、軸を日に設定します。コア プロットの例では、これが日付プロットで行われていることがわかります。大まかな見積もりは毎月 30 日なので、これらを使用して次のように定義します。

ONE_DAY (24*60*60) を定義 ONE_MONTH (30*ONE_DAY) を定義

次に、X 軸を設定します。

x.majorIntervalLength = CPTDecimalFromFloat(ONE_MONTH);

Y 軸は次のとおりです。y.majorIntervalLength = CPTDecimalFromFloat(200);

于 2013-10-20T20:49:06.460 に答える