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我想在我的代码中手动滚动CPScatterPlot
。我能够滚动绘图区但滚动globalXRange & globalYRange
时无法正常工作。我可以滚动(手动点击按钮)超出图表。一旦达到全球范围,我想限制滚动区域。iPhone - 核心图,手动滚动CPScatterPlot
这里是代码我使用,
-(IBAction)moveLineLocation:(id)sender {
isButtonClicked = TRUE;
currentTag = [sender tag];
CPPlotRange *rangeX = plotSpace.xRange;
CPPlotRange *rangeY = plotSpace.yRange;
if([sender tag] == 1) {
rangeX.location = CPDecimalAdd(rangeX.location, CPDecimalFromFloat(-0.5));
}
else if([sender tag] == 2) {
rangeY.location = CPDecimalAdd(rangeY.location, CPDecimalFromFloat(0.5));
}
else if([sender tag] == 3) {
rangeX.location = CPDecimalAdd(rangeX.location, CPDecimalFromFloat(0.5));
}
else {
rangeY.location = CPDecimalAdd(rangeY.location, CPDecimalFromFloat(-0.5));
}
plotSpace.xRange = rangeX;
plotSpace.yRange = rangeY;
[graph.axisSet relabelAxes];
[graph reloadData];
}
我怎么能限制来自这个问题过来吗?
P.S-联系事件globalXRange & globalYRange
工作绝对完美。
感谢
PRATIK