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我有文件的所有者設置爲這種觀點筆尖文件，它只有一個觀點，即有一個自定義類CPTGraphHostingView集。它通過一個插座連接到這個視圖。這個視圖加載，但它顯示的是一個非常小的條形圖。我真的不確定爲什麼。而且，任何添加到IB視圖中的東西都會顛倒過來。如何使用Core Plot設置圖表寬度？
在這一點是圖表獲得的寬度設置爲它？我假設使用self.view.bounds只會使圖表用盡所有可用的屏幕空間。
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
self = [super initWithNibName:@"PollResultView" bundle:nil];
self.title = @"Results";
return self;
}
#pragma mark - View lifecycle
- (void)viewDidLoad {
[super viewDidLoad];
graph = [[CPTXYGraph alloc] initWithFrame:self.view.bounds];
CPTXYPlotSpace *barPlotSpace = [[[CPTXYPlotSpace alloc] init] autorelease];
barPlotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0)
length:CPTDecimalFromFloat(100)];
barPlotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0)
length:CPTDecimalFromFloat(30)];
[graph addPlotSpace:barPlotSpace];
CPTMutableLineStyle *majorGridLineStyle = [CPTMutableLineStyle lineStyle];
majorGridLineStyle.lineWidth = 1.0f;
majorGridLineStyle.lineColor = [[CPTColor whiteColor] colorWithAlphaComponent:0.75f];
CPTMutableLineStyle *minorGridLineStyle = [CPTMutableLineStyle lineStyle];
minorGridLineStyle.lineWidth = 1.0f;
minorGridLineStyle.lineColor = [[CPTColor whiteColor] colorWithAlphaComponent:0.25f];
CPTXYAxisSet *axisSet = (CPTXYAxisSet *)graph.axisSet;
CPTXYAxis *x = axisSet.xAxis;
x.majorIntervalLength = CPTDecimalFromInteger(10);
x.minorTicksPerInterval = 9;
x.orthogonalCoordinateDecimal = CPTDecimalFromInteger(0);
x.majorGridLineStyle = majorGridLineStyle;
x.minorGridLineStyle = minorGridLineStyle;
x.axisLineStyle = nil;
x.majorTickLineStyle = nil;
x.minorTickLineStyle = nil;
x.labelOffset = 10.0f;
x.visibleRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(-0.5f)
length:CPTDecimalFromFloat(10.0f)];
x.gridLinesRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0.0f)
length:CPTDecimalFromFloat(100.0f)];
x.title = @"X Axis";
x.titleOffset = 30.0f;
x.titleLocation = CPTDecimalFromFloat(5.0f);
x.plotSpace = barPlotSpace;
CPTXYAxis *y = axisSet.yAxis;
y.majorIntervalLength = CPTDecimalFromInteger(10);
y.minorTicksPerInterval = 9;
y.orthogonalCoordinateDecimal = CPTDecimalFromInteger(-0.5);
y.preferredNumberOfMajorTicks = 8;
y.majorGridLineStyle = majorGridLineStyle;
y.minorGridLineStyle = minorGridLineStyle;
x.axisLineStyle = nil;
x.majorTickLineStyle = nil;
x.minorTickLineStyle = nil;
x.labelOffset = 10.0f;
y.labelRotation = M_PI/2;
y.visibleRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(0.0f)
length:CPTDecimalFromFloat(100.0f)];
y.gridLinesRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromFloat(-0.5f)
length:CPTDecimalFromFloat(10.0f)];
y.title = @"Y Axis";
y.titleOffset = 30.0f;
y.titleLocation = CPTDecimalFromInteger(55);
y.plotSpace = barPlotSpace;
graph.axisSet.axes = [NSArray arrayWithObjects:x, y, nil];
CPTMutableLineStyle *barLineStyle = [[[CPTMutableLineStyle alloc] init] autorelease];
barLineStyle.lineWidth = 1.0f;
barLineStyle.lineColor = [CPTColor whiteColor];
CPTBarPlot *barPlot = [[[CPTBarPlot alloc] init] autorelease];
barPlot.lineStyle = barLineStyle;
barPlot.fill = [CPTFill fillWithColor:[CPTColor colorWithComponentRed:1.0f
green:0.0f
blue:0.5f
alpha:0.5f]];
barPlot.barBasesVary = YES;
barPlot.barWidth = CPTDecimalFromFloat(0.5f); // bar is 50% of the available space
barPlot.barCornerRadius = 10.0f;
barPlot.barsAreHorizontal = NO;
CPTMutableTextStyle *whiteTextStyle = [CPTMutableTextStyle textStyle];
whiteTextStyle.color = [CPTColor whiteColor];
barPlot.barLabelTextStyle = whiteTextStyle;
// barPlot.delegate = self;
barPlot.dataSource = self;
barPlot.identifier = @"Bar Plot 1";
[graph addPlot:barPlot toPlotSpace:barPlotSpace];
CPTBarPlot *barPlot2 = [CPTBarPlot tubularBarPlotWithColor:[CPTColor blueColor]
horizontalBars:NO];
barPlot2.lineStyle = barLineStyle;
barPlot2.fill = [CPTFill fillWithColor:[CPTColor colorWithComponentRed:0.0f
green:1.0f
blue:0.5f
alpha:0.5f]];
barPlot2.barBasesVary = YES;
barPlot2.barWidth = CPTDecimalFromFloat(1.0f);
barPlot2.barCornerRadius = 2.0f;
barPlot2.barsAreHorizontal = NO;
//barPlot2.delegate = self;
barPlot2.dataSource = self;
barPlot2.identifier = @"Bar Plot 2";
[graph addPlot:barPlot2 toPlotSpace:barPlotSpace];
CPTLegend *theLegend = [CPTLegend legendWithGraph:graph];
theLegend.numberOfRows = 2;
theLegend.fill = [CPTFill fillWithColor:[CPTColor colorWithGenericGray:0.15]];
theLegend.borderLineStyle = barLineStyle;
theLegend.cornerRadius = 10.0;
theLegend.swatchSize = CGSizeMake(20.0, 20.0);
whiteTextStyle.fontSize = 16.0;
theLegend.textStyle = whiteTextStyle;
theLegend.rowMargin = 10.0;
theLegend.paddingLeft = 12.0;
theLegend.paddingTop = 12.0;
theLegend.paddingRight = 12.0;
theLegend.paddingBottom = 12.0;
NSArray *plotPoint = [NSArray arrayWithObjects:[NSNumber numberWithInteger:0], [NSNumber numberWithInteger:95], nil];
CPTPlotSpaceAnnotation *legendAnnotation = [[[CPTPlotSpaceAnnotation alloc] initWithPlotSpace:barPlotSpace anchorPlotPoint:plotPoint] autorelease];
legendAnnotation.contentLayer = theLegend;
legendAnnotation.contentAnchorPoint = CGPointMake(0.0f, 1.0f);
[graph.plotAreaFrame.plotArea addAnnotation:legendAnnotation];
graphHostingView.hostedGraph = graph;
}
-1，因爲積空間確定是可見的在該圖中，在視圖中而不是它的物理尺寸的數據範圍。 –
http://i.imgur.com/SLj7H.png我影響了這些行和其他一些，並改爲CGRectZero，現在我終於得到了傳說，但酒吧仍然很小。 – Tatsh