SurfacePlotMark.SurfaceFunction

DelegateChartGuruChartGuru.3D

public delegate float SurfacePlotMark.SurfaceFunction(float x, float z)

The height function a SurfacePlotMark samples: it returns the Y value at data coordinates (x, z), and a NaN or infinite result marks an undefined sample, next to which SurfacePlotMark.Boundary(SurfaceBoundaryMode) decides how the surface ends.