Coreplot在ScatterPLot位置滑动

Question

我已升级到最新版本的Coreplot（1.2）并遇到了问题。

我的图表里面有两个图。条形图和散点图。散点图是连接条形的线条表示。一切都在版本1.1中运行良好，但当我切换1.2时，Scatter图似乎放错了位置。这是从一点开始的开始。这是图像：

那些符号符号和整个散点图与条形图同步（即符号位于freen条的中间，而不是在它之外，符号在网格线上）应该如此。从numberForPlot返回的点数值相同。

以下是我的numberForPlot方法，以防万一：

- (NSNumber *)numberForPlot:(CPTPlot *)plot field:(NSUInteger)fieldEnum recordIndex:(NSUInteger)idx
{
if ([plot.identifier isEqual:kBarPlot] )
{
    if (fieldEnum == CPTBarPlotFieldBarLocation)
        return [NSNumber numberWithInt:[self.intervalStringArray indexOfObject:[allKeys objectAtIndex:idx]]];

    NSArray *activitiesForDate = [activitiesByDate valueForKey:[allKeys objectAtIndex:idx]];
    double activityAmount = 0.0;
    if (activitiesForDate)
    {
        //compute value
    }

    DebugLog(@"Barplot returning Y= %f forindex = %d", activityAmount, idx);
    return [NSNumber numberWithDouble:activityAmount];
}
if ([plot.identifier isEqual:kScatterPlot])
{
    NSString *currentDate = [[self activityDatesAsString] objectAtIndex:idx];
    if (fieldEnum == CPTScatterPlotFieldX)
    {
        int currentIndex = [self.intervalStringArray indexOfObject:currentDate];
        return [NSNumber numberWithInt:currentIndex];
    }


    NSArray *activitiesForDate = [self activitiesForDate:[self.dateFormatter dateFromString:currentDate]];
    float netActivity = 0.0;

    //compute netActvity
    DebugLog(@"SCATTERPLOT returning %@ for index %d", [NSNumber numberWithFloat:netActivity], idx);
    return [NSNumber numberWithFloat:netActivity];
}
return nil;

}

最后，日志输出是;

SCATTERPLOT returning -8 for index 0
SCATTERPLOT returning -4 for index 1
Barplot returning Y= -8.000000 for  index = 0
Barplot returning Y= -4.000000 for  index = 1

编辑：虽然我已经差不多完成了这里的代码发布，但问题仍然存在，即使散点图在图表中是独自存在的。我发现了这个问题，但我不知道它是否正常或是否是一个错误。问题在于CPTMutableShadow：

CPTScatterPlot *netActivityPlot = [[[CPTScatterPlot alloc] init] autorelease];
   netActivityPlot.identifier = kNetActivityPlot;
   netActivityPlot.title = @"Net Activity";

   CPTMutableLineStyle *lineStyle = [[netActivityPlot.dataLineStyle mutableCopy] autorelease];
   lineStyle.lineWidth              = 2.0;
   lineStyle.lineColor              = _cptNetActivityLineColor;
   netActivityPlot.dataLineStyle = lineStyle;
   netActivityPlot.dataSource    = self;
   CPTMutableShadow *shadow = [CPTMutableShadow shadow];
   shadow.shadowColor = [CPTColor lightGrayColor];
   shadow.shadowOffset = CGSizeMake(2.0, -2.0);
   shadow.shadowBlurRadius = 4.0f;
   netActivityPlot.shadow = shadow;
   [activityGraph addPlot:netActivityPlot];

   netActivityPlot.plotSpace = (CPTXYPlotSpace *)activityGraph.defaultPlotSpace;

当我移除阴影时，情节适合于线条。

Answer 1

据报道，这是一个错误。在核心地图issue tracker上作为新问题发布。