1
我必須在條形圖中添加四個等寬的水平條。但是我得到的第一個寬度小於剩餘的寬度。我已將baroffSet值設置爲0.0。當我將欄偏移值更改爲0.3時，我獲得了所有具有相同寬度的欄，但當我更改baroffset值時，標籤位置得不到正確。 請任何人幫助我。在iphone中使用核心圖的水平條不能獲得相同的寬度sdk
在此先感謝 Madan。
CPTColor *color = [CPTColor colorWithComponentRed:0.2705882352941 green:0.5058823529412 blue:0.6588235294118 alpha:0.6] ;
CPTBarPlot *barPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor colorWithComponentRed:0.2705882352941 green:0.5058823529412 blue:0.6588235294118 alpha:0.6] horizontalBars:NO];
barPlot.dataSource = self;
barPlot.baseValue = CPTDecimalFromString(@"0");
barPlot.barOffset = CPTDecimalFromFloat(0.0f);
barPlot.barCornerRadius = 0.0f;
barPlot.barWidth=CPTDecimalFromFloat(0.30f);
CPTGradient *fillGradient = [CPTGradient gradientWithBeginningColor:[CPTColor colorWithComponentRed:0.2705882352941 green:0.5058823529412 blue:0.6588235294118 alpha:0.4] endingColor:color beginningPosition:0.0 endingPosition:1.0];
//fillGradient.angle = -90.0 ;
barPlot.shadowColor = [[UIColor blackColor]CGColor];
barPlot.shadowRadius = 1;
barPlot.shadowOffset = CGSizeMake(1,-1);
barPlot.shadowOpacity = 0.9;
barPlot.fill = [CPTFill fillWithGradient:fillGradient];
barPlot.identifier = @"Current Period";
barPlot.delegate = self;
[barChart addPlot:barPlot toPlotSpace:plotSpace];
[barChart release];