Struct field

plotter/field_test.go:17–20

)

type field struct {
	c, r int
	fn   func(x, y float64) plotter.XY
}

func (f field) Dims() (c, r int)           { return f.c, f.r }
func (f field) Vector(c, r int) plotter.XY { return f.fn(f.X(c), f.Y(r)) }