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position(for:)

Returns the x and y positions as a CGPoint for the given data values, or nil if either the X or the y scale is unavailable or if any data value is invalid. The returned position is relative to the plot.

Declaration

func position<X, Y>(for point: (x: X, y: Y)) -> CGPoint? where X : Plottable, Y : Plottable

Parameters

  • point:

    A tuple of x and y data values.

Return Value

The position corresponding to the data values.