目前,我可以使用CPTScatterPlot绘制这样的趋势图 30个点,红线相互连接。
但我想在每个点之间使用不同的线条颜色。
这是我的代码我试试
CPTXYGraph *graph = [[CPTXYGraph alloc] initWithFrame:self.frame];
self.hostedGraph = graph;
CPTScatterPlot *scatterPlot = [[CPTScatterPlot alloc] initWithFrame:graph.bounds];
scatterPlot.dataSource = self;
[graph addPlot:scatterPlot];
CPTMutableLineStyle *lineStyle = [CPTMutableLineStyle lineStyle];
lineStyle.lineWidth = 1.0f;
lineStyle.lineColor = [CPTColor redColor];
scatterPlot.dataLineStyle = lineStyle;
CPTXYPlotSpace *plotSpace = (CPTXYPlotSpace *) scatterPlot.plotSpace;
plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:@0 length:@(self.dataModel.data.count -1)];
plotSpace.yRange = [CPTPlotRange plotRangeWithLocation:d length:@([c integerValue] - [d integerValue])];
CPTXYAxisSet *axisSet = (CPTXYAxisSet *)graph.axisSet;
CPTXYAxis *x = axisSet.xAxis;
CPTXYAxis *y = axisSet.yAxis;
x.orthogonalPosition = z;
x.labelingPolicy = CPTAxisLabelingPolicyNone;
y.orthogonalPosition = @0;
y.labelingPolicy = CPTAxisLabelingPolicyNone;
CPTMutableLineStyle *symbolLineStyle = [CPTMutableLineStyle lineStyle];
symbolLineStyle.lineColor = [CPTColor blackColor];
symbolLineStyle.lineWidth = 1.0;
CPTPlotSymbol *plotSymbol = [CPTPlotSymbol ellipsePlotSymbol];
plotSymbol.fill = [CPTFill fillWithColor:[CPTColor redColor]];
plotSymbol.lineStyle = symbolLineStyle;
plotSymbol.size = CGSizeMake(5.0, 5.0);
scatterPlot.plotSymbol = plotSymbol;
答案 0 :(得分:1)
您必须为此使用多个散点图。每种颜色使用一种。