ios coreplot框架中的CPTScatterPlot委托方法不起作用 [英] Delegate method in the ios coreplot framework for CPTScatterPlot does not work

问题描述

我正在尝试使用委托方法

I was trying to use the delegate method

-(void)ScatterPlot:(CPTScatterPlot *)plot plotSymbolWasSelectedAtRecordIndex:(NSUInteger)index  

。不幸的是，它似乎不起作用。此方法在头文件CPTScatterPlot.h中声明。请帮忙！！谢谢！

in the ios coreplot framework. Unfortunately, it does not seem to work. This method is declared in the header file CPTScatterPlot.h . Please help!! Thanks!

推荐答案

尝试增加 plotSymbolMarginForHitDetection 。默认值0.0表示您必须精确击中绘图点才能注册。

Try increasing the plotSymbolMarginForHitDetection. The default of 0.0 means you have to hit the plot point exactly for it to register.

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