Files
gonum/unit/force.go
2019-03-11 10:32:40 +10:30

95 lines
2.1 KiB
Go

// 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"
)
// Force represents a force in Newtons.
type Force float64
const (
Yottanewton Force = 1e24
Zettanewton Force = 1e21
Exanewton Force = 1e18
Petanewton Force = 1e15
Teranewton Force = 1e12
Giganewton Force = 1e9
Meganewton Force = 1e6
Kilonewton Force = 1e3
Hectonewton Force = 1e2
Decanewton Force = 1e1
Newton Force = 1.0
Decinewton Force = 1e-1
Centinewton Force = 1e-2
Millinewton Force = 1e-3
Micronewton Force = 1e-6
Nanonewton Force = 1e-9
Piconewton Force = 1e-12
Femtonewton Force = 1e-15
Attonewton Force = 1e-18
Zeptonewton Force = 1e-21
Yoctonewton Force = 1e-24
)
// Unit converts the Force to a *Unit
func (f Force) Unit() *Unit {
return New(float64(f), Dimensions{
LengthDim: 1,
MassDim: 1,
TimeDim: -2,
})
}
// Force allows Force to implement a Forcer interface
func (f Force) Force() Force {
return f
}
// From converts the unit into the receiver. From returns an
// error if there is a mismatch in dimension
func (f *Force) From(u Uniter) error {
if !DimensionsMatch(u, Newton) {
*f = Force(math.NaN())
return errors.New("Dimension mismatch")
}
*f = Force(u.Unit().Value())
return nil
}
func (f Force) Format(fs fmt.State, c rune) {
switch c {
case 'v':
if fs.Flag('#') {
fmt.Fprintf(fs, "%T(%v)", f, float64(f))
return
}
fallthrough
case 'e', 'E', 'f', 'F', 'g', 'G':
p, pOk := fs.Precision()
w, wOk := fs.Width()
const unit = " N"
switch {
case pOk && wOk:
fmt.Fprintf(fs, "%*.*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), p, float64(f))
case pOk:
fmt.Fprintf(fs, "%.*"+string(c), p, float64(f))
case wOk:
fmt.Fprintf(fs, "%*"+string(c), pos(w-utf8.RuneCount([]byte(unit))), float64(f))
default:
fmt.Fprintf(fs, "%"+string(c), float64(f))
}
fmt.Fprint(fs, unit)
default:
fmt.Fprintf(fs, "%%!%c(%T=%g N)", c, f, float64(f))
}
}