自定義標籤不會顯示[core-plot]

我正在嘗試繪製使用core-plot的折線圖，並且遇到了x軸標籤的問題。這裏是我的代碼：自定義標籤不會顯示[core-plot]

graph = [[CPTXYGraph alloc] initWithFrame:self._graphView.bounds]; 

CPTTheme *theme = [CPTTheme themeNamed:kCPTPlainWhiteTheme]; 

[graph applyTheme:theme]; 

CPTGraphHostingView *hostingView = (CPTGraphHostingView *)self._graphView; 

[hostingView setHostedGraph:graph]; 

[self.view addSubview:hostingView]; 

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

graph.plotAreaFrame.paddingLeft = 55.0; 
graph.plotAreaFrame.paddingTop = 50.0; 
graph.plotAreaFrame.paddingRight = 20.0; 
graph.plotAreaFrame.paddingBottom = 90.0; 

CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *)graph.defaultPlotSpace; 

plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(0) length:CPTDecimalFromInt([examValues count])]; 

plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromInt(0) length:CPTDecimalFromDouble([self getYRange] + 10)]; 

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

CPTXYAxisSet *axisSet = (id)graph.axisSet; 
axisSet.xAxis.labelingPolicy = CPTAxisLabelingPolicyEqualDivisions; 
axisSet.xAxis.orthogonalCoordinateDecimal = CPTDecimalFromString(@"0"); 
axisSet.xAxis.majorTickLineStyle = lineStyle; 
axisSet.xAxis.minorTickLineStyle = lineStyle; 
axisSet.xAxis.axisLineStyle = lineStyle; 

NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[examValues count]]; 
static CPTMutableTextStyle *labelTextStyle = nil; 
labelTextStyle = [[CPTMutableTextStyle alloc] init]; 
labelTextStyle.color = [CPTColor blackColor]; 
labelTextStyle.fontSize = 10.0f; 

int index = 1; 
for (SmartAssetInspectionResultHistoryDTO *result in examValues) { 
    CPTAxisLabel *newLabel = [[CPTAxisLabel alloc] initWithText:result._inspectiondate textStyle:labelTextStyle]; 
    newLabel.tickLocation = CPTDecimalFromInt(index); 
    newLabel.offset = axisSet.xAxis.labelOffset + axisSet.xAxis.majorTickLength; 
    newLabel.rotation = M_PI/4; 
    [customLabels addObject:newLabel]; 
    [newLabel release]; 

    index ++; 
} 

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

axisSet.yAxis.majorIntervalLength = CPTDecimalFromString(@"20"); 
axisSet.yAxis.orthogonalCoordinateDecimal = CPTDecimalFromInt(0); 
axisSet.yAxis.majorTickLineStyle = lineStyle; 
axisSet.yAxis.minorTickLineStyle = lineStyle; 
axisSet.yAxis.axisLineStyle = lineStyle; 
axisSet.yAxis.labelOffset = 3.0f; 

CPTScatterPlot *plot = [[[CPTScatterPlot alloc] init] autorelease]; 

CPTMutableLineStyle *dataLineStyle = [CPTMutableLineStyle lineStyle]; 
plot.identifier = @"Date Plot"; 

dataLineStyle.lineWidth = 1.0f; 
dataLineStyle.lineColor = [CPTColor redColor]; 
plot.dataLineStyle = dataLineStyle; 
plot.dataSource = self; 

CPTPlotSymbol *greenCirclePlotSymbol = [CPTPlotSymbol ellipsePlotSymbol]; 
greenCirclePlotSymbol.fill = [CPTFill fillWithColor:[CPTColor greenColor]]; 
greenCirclePlotSymbol.size = CGSizeMake(5.0, 5.0); 
plot.plotSymbol = greenCirclePlotSymbol; 

[graph addPlot:plot];

一些評論：

examValues <--- A NSMutableArray storing some data . 
SmartAssetInspectionResultHistoryDTO <--- Detail info object stored in examValues . 
result._inspectiondate <--- Date info I want to display in the x axis' labels .

我的麻煩：沒有日期顯示下方X軸，但浮動值，像 '1.0'， '2.0' ... 誰可以告訴我問題在哪裏？

來源

2012-07-26 Sabbath

通過改變你labelingPolicy無人只是嘗試.. 「axisSet.xAxis.labelingPolicy = CPTAxisLabelingPolicyNone」

來源

2012-07-26 07:22:23 prakash

這工作。謝謝。 – Sabbath 2012-07-26 08:20:55

自定義標籤不會顯示[core-plot]

回答

相關問題