CODEWITHSUNDEEP
iosswiftgraphcore-plottvos
mike.tihonchik
mike.tihonchik

Reputation: 6933

CorePlot: bring grid lines to the foreground?

Just like the title says, is there a way to bring grid lines into foreground (namely, in front of the graph, but behind symbols)? What I have right now is:

enter image description here

And my code is as follows (using Swift 3):

    let gridLineStyle = CPTMutableLineStyle()
    gridLineStyle.lineWidth = 0.75
    gridLineStyle.lineColor = CPTColor.white()

    let bottomXAxis = axisSet.axis(for: .X, at: 0)  as! CPTXYAxis
    bottomXAxis.labelingPolicy = .none
    axisLineStyle.lineWidth = 2.0
    bottomXAxis.majorTickLineStyle = axisLineStyle
    bottomXAxis.majorTickLength = 4.0
    bottomXAxis.minorTicksPerInterval = 0
    bottomXAxis.labelTextStyle = axisTitleStyle
    bottomXAxis.labelOffset = -2.0
    bottomXAxis.majorGridLineStyle = gridLineStyle

Upvotes: 1

Views: 107

Answers (1)

Eric Skroch
Eric Skroch

Reputation: 27381

Plot symbols are drawn in the same layer as the scatter plot. You can rearrange the drawing layers with the topDownLayerOrder, but that still keeps the plots together.

One possible solution is to use a partially transparent fill for the area fills under the scatter plots. That would allow the grid line to show through. Another solution would be to draw your own grid lines with another scatter plot. Use separate plots to draw the fills, the grid, and the plot symbols so you can control the layering.

Upvotes: 1

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