Re: [Boost-users] boost::units - converting from one derived_dimension to another across systems (imperial to metric)

Subject: Re: [Boost-users] boost::units - converting from one derived_dimension to another across systems (imperial to metric)
From: Michael Powell (mwpowellhtx_at_[hidden])
Date: 2018-11-15 16:27:59

On Thu, Nov 15, 2018 at 11:11 AM Roger Leigh via Boost-users
<boost-users_at_[hidden]> wrote:
>
> On 15/11/2018 15:18, Steven Watanabe via Boost-users wrote:
> > AMDG
> >
> > On 11/14/2018 05:04 AM, Matt Vinson via Boost-users wrote:
> >> I am having trouble converting from one derived_dimension to another across systems (imperial to metric).  I'd like to convert, say, lb/in to, say, kg/m.  I thought I would do the following but get a compiler error #:
> >
> > It's not going to work.  lb is a unit of
> > force, but kg is a unit of mass.  They are not
> > compatible and there is no conversion between
> > them.
>
> lb·f (foot-pounds) is force; lb is mass.

No, lb-f is a unit of Torque. lb is a unit of Force.

> The code in question is using pounds force, so won't be convertible to
> inches as you say, just wanted to correct the terminology.
>
>
> Regards,
> Roger
>
>
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