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わかりました私は困惑しています。iOS アプリで Core Plot 1.2 を使用しようとしていますが、1 つの画面に 2 つのプロットを追加しようとしています。私のView Controllerのコードは以下の通りです。NIB ファイルもありますが、空です - UIView だけのデフォルト ビューです。タイプ CPTGraphHostingView の 2 つのサブビューを作成し、これらを self.view の suvview として追加してから、グラフを作成します。以下のコードでは、グラフの 1 つを作成するメソッドをコメントアウトして、表示するグラフを 1 つでも取得できるかどうかを確認しましたが、表示されるのは空白の白い画面だけです。

各プロットのテスト目的で単純な X**2 関数を使用しています。

私は何を間違っていますか?2 つまたは 3 つの別々の XY スタイル プロットを 1 つの画面に表示する簡単な方法はありますか?

@interface SensorPlotSecondViewController : UIViewController <CPTPlotDataSource>
{
    CPTGraphHostingView *accelSubview;
    CPTGraphHostingView *gyroSubview;
    CPTGraphHostingView *magSubview;

    CPTXYGraph *accelGraph;
    CPTXYGraph *gyroGraph;
    CPTXYGraph *magGraph;
}

-(NSUInteger)numberOfRecordsForPlot:(CPTPlot *)plot;

-(NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)idx;

@end


@implementation SensorPlotSecondViewController

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        self.title = NSLocalizedString(@"Second", @"Second");
        self.tabBarItem.image = [UIImage imageNamed:@"second"];

        CGRect frm1=CGRectMake(0,0,320,150);
        accelSubview=[[CPTGraphHostingView alloc] initWithFrame:frm1];
        [self.view addSubview:accelSubview];

        CGRect frm2=CGRectMake(0,150,320,150);
        gyroSubview=[[CPTGraphHostingView alloc] initWithFrame:frm2];
        [self.view addSubview:gyroSubview];

    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    [self createAccelGraph];

    //[self createGyroGraph];
}

-(void)createAccelGraph
{
    accelGraph = [[CPTXYGraph alloc] initWithFrame: accelSubview.bounds];

    //CPTTheme *theme=[CPTTheme themeNamed:kCPTPlainWhiteTheme];
    //[accelGraph applyTheme:theme];

    accelGraph.plotAreaFrame.borderLineStyle = nil;

    CPTGraphHostingView *hostingView = (CPTGraphHostingView *)accelSubview;
    hostingView.hostedGraph=accelGraph;
    accelGraph.paddingLeft = 0.0;
    accelGraph.paddingTop = 0.0;
    accelGraph.paddingRight = 0.0;
    accelGraph.paddingBottom = 0.0;

    //accelGraph.fill=nil;

    CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)accelGraph.defaultPlotSpace;
    plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0)
                                                    length:CPTDecimalFromFloat(10)];
    plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0)
                                                    length:CPTDecimalFromFloat(30)];

    CPTMutableLineStyle *lineStyle = [CPTMutableLineStyle lineStyle];
    lineStyle.lineColor = [CPTColor blackColor];
    lineStyle.lineWidth = 2.0f;

    CPTXYAxisSet *axisSet = (CPTXYAxisSet *)accelGraph.axisSet;
    axisSet.xAxis.majorIntervalLength = CPTDecimalFromString(@"5");

    axisSet.xAxis.minorTicksPerInterval = 4;
    axisSet.xAxis.majorTickLineStyle = lineStyle;
    axisSet.xAxis.minorTickLineStyle = lineStyle;
    axisSet.xAxis.axisLineStyle = lineStyle;
    axisSet.xAxis.minorTickLength = 5.0f;
    axisSet.xAxis.majorTickLength = 7.0f;
    axisSet.xAxis.labelOffset = 3.0f;

    axisSet.xAxis.visibleAxisRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0") length:CPTDecimalFromString(@"10")];

    axisSet.yAxis.majorIntervalLength = CPTDecimalFromString(@"5");
    axisSet.yAxis.minorTicksPerInterval = 4;
    axisSet.yAxis.majorTickLineStyle = lineStyle;
    axisSet.yAxis.minorTickLineStyle = lineStyle;
    axisSet.yAxis.axisLineStyle = lineStyle;
    axisSet.yAxis.minorTickLength = 5.0f;
    axisSet.yAxis.majorTickLength = 7.0f;
    axisSet.yAxis.labelOffset = 3.0f;

    axisSet.yAxis.visibleAxisRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0") length:CPTDecimalFromString(@"25")];

    accelGraph.plotAreaFrame.paddingLeft = 40.0;
    accelGraph.plotAreaFrame.paddingTop = 80.0;
    accelGraph.plotAreaFrame.paddingRight = 40.0;
    accelGraph.plotAreaFrame.paddingBottom = 300.0;

    CPTScatterPlot *xSquaredPlot = [[[CPTScatterPlot alloc] initWithFrame:accelSubview.bounds] autorelease];
    //CPTScatterPlot *xSquaredPlot = [[[CPTScatterPlot alloc] init] autorelease];
    xSquaredPlot.identifier = @"X Squared Plot";

    CPTMutableLineStyle *dataLineStyle = [CPTMutableLineStyle lineStyle];
    dataLineStyle.lineWidth = 1.0f;
    dataLineStyle.lineColor = [CPTColor redColor];
    xSquaredPlot.dataLineStyle=dataLineStyle;
    xSquaredPlot.dataSource = self;

    [accelGraph addPlot:xSquaredPlot];

    CPTPlotSymbol *greenCirclePlotSymbol = [CPTPlotSymbol ellipsePlotSymbol];
    greenCirclePlotSymbol.fill = [CPTFill fillWithColor:[CPTColor greenColor]];
    greenCirclePlotSymbol.size = CGSizeMake(2.0, 2.0);
    //xSquaredPlot.defaultPlotSymbol = greenCirclePlotSymbol;
    xSquaredPlot.plotSymbol = greenCirclePlotSymbol;

    /****
     CPTScatterPlot *xInversePlot = [[[CPTScatterPlot alloc] init] autorelease];
     xInversePlot.identifier = @"X Inverse Plot";

     CPTMutableLineStyle *dataLineStyle2 = [CPTMutableLineStyle lineStyle];
     dataLineStyle2.lineWidth = 1.0f;
     dataLineStyle2.lineColor = [CPTColor blueColor];
     xInversePlot.dataLineStyle=dataLineStyle2;
     xInversePlot.dataSource = self;
     [accelGraph addPlot:xInversePlot];
     ****/

}

-(void)createGyroGraph
{
    gyroGraph = [[CPTXYGraph alloc] initWithFrame: gyroSubview.bounds];

    CPTTheme *theme=[CPTTheme themeNamed:kCPTPlainWhiteTheme];
    [gyroGraph applyTheme:theme];

    gyroGraph.plotAreaFrame.borderLineStyle = nil;

    CPTGraphHostingView *hostingView = (CPTGraphHostingView *)gyroSubview;
    hostingView.hostedGraph=gyroGraph;
    gyroGraph.paddingLeft = 0.0;
    gyroGraph.paddingTop = 0.0;
    gyroGraph.paddingRight = 0.0;
    gyroGraph.paddingBottom = 0.0;

    gyroGraph.fill=nil;

    CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)gyroGraph.defaultPlotSpace;
    plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0)
                                                    length:CPTDecimalFromFloat(10)];
    plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0)
                                                    length:CPTDecimalFromFloat(30)];

    CPTMutableLineStyle *lineStyle = [CPTMutableLineStyle lineStyle];
    lineStyle.lineColor = [CPTColor blackColor];
    lineStyle.lineWidth = 2.0f;

    CPTXYAxisSet *axisSet = (CPTXYAxisSet *)gyroGraph.axisSet;
    axisSet.xAxis.majorIntervalLength = CPTDecimalFromString(@"5");

    axisSet.xAxis.minorTicksPerInterval = 4;
    axisSet.xAxis.majorTickLineStyle = lineStyle;
    axisSet.xAxis.minorTickLineStyle = lineStyle;
    axisSet.xAxis.axisLineStyle = lineStyle;
    axisSet.xAxis.minorTickLength = 5.0f;
    axisSet.xAxis.majorTickLength = 7.0f;
    axisSet.xAxis.labelOffset = 3.0f;

    axisSet.xAxis.visibleAxisRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0") length:CPTDecimalFromString(@"10")];

    axisSet.yAxis.majorIntervalLength = CPTDecimalFromString(@"5");
    axisSet.yAxis.minorTicksPerInterval = 4;
    axisSet.yAxis.majorTickLineStyle = lineStyle;
    axisSet.yAxis.minorTickLineStyle = lineStyle;
    axisSet.yAxis.axisLineStyle = lineStyle;
    axisSet.yAxis.minorTickLength = 5.0f;
    axisSet.yAxis.majorTickLength = 7.0f;
    axisSet.yAxis.labelOffset = 3.0f;

    axisSet.yAxis.visibleAxisRange=[CPTPlotRange plotRangeWithLocation:CPTDecimalFromString(@"0") length:CPTDecimalFromString(@"25")];

    gyroGraph.plotAreaFrame.paddingLeft = 40.0;
    gyroGraph.plotAreaFrame.paddingTop = 200.0;
    gyroGraph.plotAreaFrame.paddingRight = 40.0;
    gyroGraph.plotAreaFrame.paddingBottom = 150.0;

    CPTScatterPlot *xSquaredPlot = [[[CPTScatterPlot alloc] initWithFrame:gyroSubview.bounds] autorelease];
    //CPTScatterPlot *xSquaredPlot = [[[CPTScatterPlot alloc] init] autorelease];
    xSquaredPlot.identifier = @"X Squared Plot";

    CPTMutableLineStyle *dataLineStyle = [CPTMutableLineStyle lineStyle];
    dataLineStyle.lineWidth = 1.0f;
    dataLineStyle.lineColor = [CPTColor redColor];
    xSquaredPlot.dataLineStyle=dataLineStyle;
    xSquaredPlot.dataSource = self;

    [gyroGraph addPlot:xSquaredPlot];

    CPTPlotSymbol *greenCirclePlotSymbol = [CPTPlotSymbol ellipsePlotSymbol];
    greenCirclePlotSymbol.fill = [CPTFill fillWithColor:[CPTColor greenColor]];
    greenCirclePlotSymbol.size = CGSizeMake(2.0, 2.0);
    //xSquaredPlot.defaultPlotSymbol = greenCirclePlotSymbol;
    xSquaredPlot.plotSymbol = greenCirclePlotSymbol;

    /****
     CPTScatterPlot *xInversePlot = [[[CPTScatterPlot alloc] init] autorelease];
     xInversePlot.identifier = @"X Inverse Plot";

     CPTMutableLineStyle *dataLineStyle2 = [CPTMutableLineStyle lineStyle];
     dataLineStyle2.lineWidth = 1.0f;
     dataLineStyle2.lineColor = [CPTColor blueColor];
     xInversePlot.dataLineStyle=dataLineStyle2;
     xInversePlot.dataSource = self;
     [accelGraph addPlot:xInversePlot];
     ****/

}
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1 に答える 1

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プロット エリア フレームのパディングが大きすぎます。グラフの高さは 150 ピクセルしかありませんが、プロット エリアを 380 ピクセル挿入しようとしており、プロットを描画する余地がありません。

于 2013-04-19T01:42:53.033 に答える