[英]Core Plot: Increase space between ticks on the x-axis?
I have this code for making ticks and labels on the x-axis: 我有这个代码用于在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;
I was wondering if I could expand the distance between each tick, because right now it just looks like a squished together mess that does not align with the points. 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一个混乱的混乱,与点不对齐。 Is there any way to make more space in between each tick, say 10 pixels?
有没有办法在每个刻度之间留出更多空间,比如10个像素? Thanks!
谢谢!
I checked into it, and it all lied in the CGFloat location = i++;
我检查了它,它都在
CGFloat location = i++;
撒谎CGFloat location = i++;
. 。 I changed that to what I wanted (5, as in pixels) like this:
我将其更改为我想要的(5,像素一样),如下所示:
CGFloat location = i+=5;
and that worked. 那很有效。
Assuming you use CPTXYGraph
and its CPTXYPlotSpace
. 假设您使用
CPTXYGraph
及其CPTXYPlotSpace
。 Using the plotSpace.globalXRange
and plotSpace.xRange
properties you can adjust proper scale for the X-axis. 使用
plotSpace.globalXRange
和plotSpace.xRange
属性,您可以调整X轴的适当比例。
The globalXRange
defines the whole plot area, while the xRange
defines its visible space. globalXRange
定义整个绘图区域,而xRange
定义其可见空间。 If you do not use scrolling, then xRange
must be equal to globalXRange
. 如果不使用滚动,则
xRange
必须等于globalXRange
。
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