Method Z

plotter/heat_test.go:28–28

(c, r int)

func (g offsetUnitGrid) Dims() (c, r int)   { r, c = g.Data.Dims(); return c, r }
func (g offsetUnitGrid) Z(c, r int) float64 { return g.Data.At(r, c) }
func (g offsetUnitGrid) X(c int) float64 {
	_, n := g.Data.Dims()
	if c < 0 || c >= n {