| // Code generated by "go generate gonum.org/v1/gonum/unit”; 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 ( |
| "errors" |
| "fmt" |
| "math" |
| "unicode/utf8" |
| ) |
| |
| // Energy represents a quantity of energy in Joules. |
| type Energy float64 |
| |
| const Joule Energy = 1 |
| |
| // Unit converts the Energy to a *Unit. |
| func (e Energy) Unit() *Unit { |
| return New(float64(e), Dimensions{ |
| LengthDim: 2, |
| MassDim: 1, |
| TimeDim: -2, |
| }) |
| } |
| |
| // Energy allows Energy to implement a Energyer interface. |
| func (e Energy) Energy() Energy { |
| return e |
| } |
| |
| // From converts the unit into the receiver. From returns an |
| // error if there is a mismatch in dimension. |
| func (e *Energy) From(u Uniter) error { |
| if !DimensionsMatch(u, Joule) { |
| *e = Energy(math.NaN()) |
| return errors.New("unit: dimension mismatch") |
| } |
| *e = Energy(u.Unit().Value()) |
| return nil |
| } |
| |
| func (e Energy) Format(fs fmt.State, c rune) { |
| switch c { |
| case 'v': |
| if fs.Flag('#') { |
| fmt.Fprintf(fs, "%T(%v)", e, float64(e)) |
| return |
| } |
| fallthrough |
| case 'e', 'E', 'f', 'F', 'g', 'G': |
| p, pOk := fs.Precision() |
| w, wOk := fs.Width() |
| const unit = " J" |
| switch { |
| case pOk && wOk: |
| fmt.Fprintf(fs, "%*.*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), p, float64(e)) |
| case pOk: |
| fmt.Fprintf(fs, "%.*"+string(c), p, float64(e)) |
| case wOk: |
| fmt.Fprintf(fs, "%*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), float64(e)) |
| default: |
| fmt.Fprintf(fs, "%"+string(c), float64(e)) |
| } |
| fmt.Fprint(fs, unit) |
| default: |
| fmt.Fprintf(fs, "%%!%c(%T=%g J)", c, e, float64(e)) |
| } |
| } |