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// Code generated by "go generate”; DO NOT EDIT.
// Copyright ©2014 The Gonum Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package unit
import (
// Length represents a length in metres.
type Length float64
const Metre Length = 1
// Unit converts the Length to a *Unit.
func (l Length) Unit() *Unit {
return New(float64(l), Dimensions{
LengthDim: 1,
// Length allows Length to implement a Lengther interface.
func (l Length) Length() Length {
return l
// From converts the unit into the receiver. From returns an
// error if there is a mismatch in dimension.
func (l *Length) From(u Uniter) error {
if !DimensionsMatch(u, Metre) {
*l = Length(math.NaN())
return errors.New("unit: dimension mismatch")
*l = Length(u.Unit().Value())
return nil
func (l Length) Format(fs fmt.State, c rune) {
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "%T(%v)", l, float64(l))
case 'e', 'E', 'f', 'F', 'g', 'G':
p, pOk := fs.Precision()
w, wOk := fs.Width()
const unit = " m"
switch {
case pOk && wOk:
fmt.Fprintf(fs, "%*.*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), p, float64(l))
case pOk:
fmt.Fprintf(fs, "%.*"+string(c), p, float64(l))
case wOk:
fmt.Fprintf(fs, "%*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), float64(l))
fmt.Fprintf(fs, "%"+string(c), float64(l))
fmt.Fprint(fs, unit)
fmt.Fprintf(fs, "%%!%c(%T=%g m)", c, l, float64(l))