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我正在繪製一個繪圖儀應用程序。創建繪圖區後,我設法使用-addCurve:index
將圖添加到該區域,如下所示。在覈心繪圖中繪製切線圖
-(void)addCurve:(int)index {
// identifier
NSString *identifier = [NSString stringWithFormat:@"plot%d", index];
CPTScatterPlot *boundLinePlot = [[CPTScatterPlot alloc] init];
CPTMutableLineStyle *lineStyle = [CPTMutableLineStyle lineStyle];
lineStyle.miterLimit = 1.0f;
lineStyle.lineWidth = 3.0f;
lineStyle.lineColor = [CPTColor colorWithCGColor:[colorArray[index-1] CGColor]];
boundLinePlot.dataLineStyle = lineStyle;
boundLinePlot.identifier = identifier;
boundLinePlot.dataSource = self;
[graph addPlot:boundLinePlot toPlotSpace:plotSpace];
// interpolatiom
boundLinePlot.interpolation = CPTScatterPlotInterpolationCurved;
}
然而,當我繪製一個正切函數時,最高點和最低點連接並且每兩條曲線之間出現垂直線。任何人都知道我能如何擺脫它們?謝謝。
非常感謝你! – user 2015-02-10 10:25:53