ios - 核心剧情: Increase space between ticks on the x-axis?

Question

我有这段代码可以在 x 轴上制作刻度和标签:

    CPTAxis *x = axisSet.xAxis;
    x.title = @"Hour of Day";
    x.titleTextStyle = axisTitleStyle;
    x.titleOffset = 15.0f;
    x.axisLineStyle = axisLineStyle;
    x.labelingPolicy = CPTAxisLabelingPolicyNone;
    x.labelTextStyle = axisTextStyle;
    x.majorTickLineStyle = axisLineStyle;
    x.majorTickLength = 4.0f;
    x.tickDirection = CPTSignNegative;
    CGFloat dateCount = [timestamps count];
    NSMutableSet *xLabels = [NSMutableSet setWithCapacity:dateCount];
    NSMutableSet *xLocations = [NSMutableSet setWithCapacity:dateCount];
    NSInteger i = 0;
    for (NSString *date in timestampStrings) {
        CPTAxisLabel *label = [[CPTAxisLabel alloc] initWithText:date textStyle:x.labelTextStyle];
        CGFloat location = i++;
        label.tickLocation = CPTDecimalFromCGFloat(location);
        label.offset = x.majorTickLength;
        if (label) {
            [xLabels addObject:label];
            [xLocations addObject:[NSNumber numberWithFloat:location]];
        }
    }
    x.axisLabels = xLabels;
    x.majorTickLocations = xLocations;

我想知道我是否可以扩大每个刻度线之间的距离，因为现在它看起来像是一团压在一起的困惑，没有与点对齐。有没有办法在每个刻度线之间留出更多空间，比如 10 个像素？谢谢!

Answer 1

我检查了一下，发现它都在 CGFloat location = i++; 中。我将其更改为我想要的(5，以像素为单位)，如下所示:

CGFloat location = i+=5;

这奏效了。