Delegate method in the ios coreplot framework for CPTScatterPlot does not work

问题

I was trying to use the delegate method

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

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!

回答1:

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

来源：https://stackoverflow.com/questions/11550624/delegate-method-in-the-ios-coreplot-framework-for-cptscatterplot-does-not-work