vector/path.go
func (p *Path) LineTo(x, y float32) {
	if len(p.segs) == 0 {
		p.segs = append(p.segs, []math.Segment{})
	}
	p.segs[len(p.segs)-1] = append(p.segs[len(p.segs)-1], math.Segment{p.cur, math.Point{x, y}})
	p.cur = math.Point{x, y}
}
func (p *Path) LineTo(x, y float32) {
	if len(p.segs) == 0 {
		p.segs = append(p.segs, []math.Segment{})
	}
	p.segs[len(p.segs)-1] = append(p.segs[len(p.segs)-1], math.Segment{p.cur, math.Point{x, y}})
	p.cur = math.Point{x, y}
}
// LineTo adds a math.Segment to the path, which starts from the current position and ends to the given position (x, y).
//
// LineTo updates the current position to (x, y).