如何默认选中折线图某个点

[yl3066882156]

第一张图是设计图，第二张时我添加的marker，以下是代码片段

//折线数组，多条线就增加元素
    NSMutableArray *series = [[NSMutableArray alloc]init];
    [self.temperatureDataSourceArray enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
            
        NSArray *array = obj;
        
        NSMutableArray *dataSource = [[NSMutableArray alloc]init];
        dataSource = array.mutableCopy;
        [array enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger idx, BOOL * _Nonnull stop) {
           
            CGFloat num = [[NSString stringWithFormat:@"%@", obj] floatValue];
            if (idx == array.count - 1) {
                
                AADataElement *singleSpecialData = AADataElement.new
                .markerSet(AAMarker.new
                           .lineColorSet(idx == 0 ? @"#0DBAFE" : @"#7DDAFF")//外边框颜色
                           .lineWidthSet(@5)//边框宽度
                           .fillColorSet(idx == 0 ? @"#0DBAFE" : @"#7DDAFF")//中心填充色
                           .radiusSet(@5)/*半径*/
                           )
                .ySet([NSNumber numberWithFloat:num]);
                
                [dataSource  replaceObjectAtIndex:idx withObject:singleSpecialData];
            }
        }];
        
        //折线数据1
        AASeriesElement *element1 = AASeriesElement.new
            .lineWidthSet(@2)
            .statesSet(AAStates.new
                       .hoverSet(AAHover.new
                                 .enabledSet(true)
                                 //手指盘旋或选中图表时,禁止线条变粗
                                 .lineWidthPlusSet(@0)))
            .markerSet(AAMarker.new
                       .radiusSet(@0)
                       .symbolSet(AAChartSymbolTypeCircle)
                       .statesSet(AAMarkerStates.new
                                  .hoverSet(AAMarkerHover.new
//                                            .enabledSet(false)
                                            .lineColorSet(idx == 0 ?@"#0DBAFE" : @"#7DDAFF")//外边框颜色
                                            .lineWidthSet(@5)//边框宽度
                                            .fillColorSet(idx == 0 ?@"#0DBAFE" : @"#7DDAFF")//中心填充色
                                            .radiusSet(@5)/*半径*/)))
            .dataSet(dataSource);
        
        //折线数组，多条线就增加元素
        [series addObject:element1];
        
    }];

但是我滑动时，添加的marker是不会消失的，还是半径5，怎么在滑动时，让他消失，也就是默认选中某个点，而不是我这样手动加上这个点，最终呈现这样的

[AAChartModel]

参考 demo 中的如下配置示例, 运行查看交互效果:

//https://api.highcharts.com/highcharts/plotOptions.series.marker.states.hover
//https://api.highcharts.com/highcharts/plotOptions.series.events.mouseOver
//https://api.highcharts.com/class-reference/Highcharts.Point#select
//https://github.com/AAChartModel/AAChartKit/issues/1532
+ (AAOptions *)defaultSelectedAPointForLineChart {
    AADataElement *defaultPointData = AADataElement.new
        .ySet(@29.9)
        .selectedSet(@true);

    NSArray *dataArr = @[@29.9, @71.5, @106.4, @129.2, @144.0, @176.0, @135.6, @148.5, @216.4, @194.1, @95.6, defaultPointData];
    NSInteger defaultPointIndex = dataArr.count - 1;

    AAOptions *options = AAOptions.new
        .xAxisSet(AAXAxis.new
            .categoriesSet(@[@"Jan", @"Feb", @"Mar", @"Apr", @"May", @"Jun", @"Jul", @"Aug", @"Sep", @"Oct", @"Nov", @"Dec"]))
        .plotOptionsSet(AAPlotOptions.new
            .seriesSet(AASeries.new
                .eventsSet(AASeriesEvents.new
                    .mouseOverSet([NSString stringWithFormat:@AAJSFunc(function () {
                        if(this.hasRun) return;

                        var series = this;
                        var defaultPointIndex = %ld;
                        if (series.data.length > defaultPointIndex) {
                            defaultPoint = series.data[defaultPointIndex];
                            defaultPoint.select(false);
                        }

                        this.hasRun = true;
                    }), (long)defaultPointIndex]))
                .allowPointSelectSet(@true)
                .markerSet(AAMarker.new
                    .statesSet(AAMarkerStates.new
                        .selectSet(AAMarkerSelect.new
                            .fillColorSet(@"red")
                            .lineWidthSet(@10)
                            .lineColorSet(@"yellow")
                            .radiusSet(@20))))))
        .seriesSet(@[
            AASeriesElement.new
                .dataSet(dataArr)
        ]);

    return options;
}

[AAChartModel]

1. 想要查看以上的配置内容, 需要下载最新 demo 代码.
2. 想要在你的项目中使用以上配置的话, 需要更新 AAChartKit 的 pod 库.
   参考:
   • 如何更新 AAChartKit 至最新内容? #1337