Method lengthOffset

axis.go:690–695

lengthOffset returns an offset that should be added to the tick mark's line to accout for its length. I.e., the start of the line for a minor tick mark must be shifted by half of the length.

(len vg.Length)

// the line for a minor tick mark must be shifted by half of
// the length.
func (t Tick) lengthOffset(len vg.Length) vg.Length {
	if t.IsMinor() {
		return len / 2
	}
	return 0
}

// tickLabelHeight returns height of the tick mark labels.
func tickLabelHeight(sty text.Style, ticks []Tick) vg.Length {