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From "Martin Desruisseaux (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (SIS-378) Too aggressive simplification of some units of measurement
Date Thu, 05 Apr 2018 13:42:00 GMT

     [ https://issues.apache.org/jira/browse/SIS-378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Martin Desruisseaux reassigned SIS-378:
---------------------------------------

    Assignee: Martin Desruisseaux

> Too aggressive simplification of some units of measurement
> ----------------------------------------------------------
>
>                 Key: SIS-378
>                 URL: https://issues.apache.org/jira/browse/SIS-378
>             Project: Spatial Information Systems
>          Issue Type: Bug
>          Components: Utilities
>    Affects Versions: 0.8
>            Reporter: Martin Desruisseaux
>            Assignee: Martin Desruisseaux
>            Priority: Major
>             Fix For: 1.0
>
>
> In the left column, some units used by the World Meteorological Organisation (WMO). In
the right column, the result of parsing with Apache SIS. Some simplifications are too aggressive,
in particular with dimensionless units like radians.
> || WMO units       || After SIS parsing || Ok ||
> |   K m2 kg-1 s-1  |       K⋅m²∕(kg⋅s)  |  (/) |
> |        m m6 m-3  |                m⁴  |  (!) |
> |          Pa s-1  |         kg∕(m⋅s³)  |  (!) |
> |           S m-1  |     A²⋅s³∕(kg⋅m³)  |  (!) |
> |   kg kg-1 m s-1  |               m∕s  |  (!) |
> |        m2/3 s-1  |  0.3333333333333333⋅m²∕s  |  (x) |
> |          J kg-1  |             m²∕s²  |  (!) |
> |       mol mol-1  |                    |  (!) |
> |         mol s-1  |             mol∕s  |  (/) |
> |           K s-1  |               K∕s  |  (/) |
> |           m s-1  |               m∕s  |  (/) |
> |           m s-2  |              m∕s²  |  (/) |
> |            Pa m  |             kg∕s²  |  (!) |
> |          m3 s-1  |              m³∕s  |  (/) |
> |      kg m-2 s-1  |         kg∕(m²⋅s)  |  (/) |
> |          μg m-3  |      1.0E-9⋅kg∕m³  |  (!) |
> |           K m-1  |               K∕m  |  (/) |
> |           W m-2  |             kg∕s³  |  (!) |
> |           N m-2  |                Pa  |  (?) |
> |     (m2 s sr)-1  |           -1⋅m²⋅s  |  (x) |
> |          kg m-2  |             kg∕m²  |  (/) |
> |          kg m-3  |             kg∕m³  |  (/) |
> |         K*m s-1  |             K⋅m∕s  |  (/) |
> |          cm/day  |  1.1574074074074074E-7⋅m∕s  |  (!) |
> |     m-2 s rad-1  |              s∕m²  |  (x) |
> |         N m-2 s  |          kg∕(m⋅s)  |  (!) |
> |     kg kg-1 s-1  |                Hz  |  (x) |
> |     kg/kg*kg/kg  |                    |  (!) |
> |           K*m/s  |             K⋅m∕s  |  (/) |
> |      kg/kg*Pa/s  |         kg∕(m⋅s³)  |  (!) |
> |       kg/kg*m/s  |               m∕s  |  (!) |
> |             day  |                 d  |  (/) |
> |          µg m-3  |      1.0E-9⋅kg∕m³  |  (!) |
> |           Pa*Pa  |       kg²∕(m²⋅s⁴)  |  (!) |
> |      W m-2 Hz-1  |             kg∕s²  |  (!) |
> |      W sr-1 m-2  |             kg∕s³  |  (x) |
> |           N m-1  |             kg∕s²  |  (!) |
> |      W m-1 sr-1  |           kg⋅m∕s³  |  (x) |
> |         m-2 s-1  |           ∕(m²⋅s)  |  (!) |
> |               °  |                 °  |  (/) |
> |         kg kg-1  |                    |  (!) |
> |           s m-1  |               s∕m  |  (/) |
> |      W m-3 sr-1  |         kg∕(m⋅s³)  |  (x) |
> |          K*Pa/s  |       K⋅kg∕(m⋅s³)  |  (!) |
> |          m3 m-3  |                    |  (!) |
> |           V m-1  |       kg⋅m∕(s³⋅A)  |  (!) |
> |          m2 s-2  |             m²∕s²  |  (/) |
> |          m2 s-1  |              m²∕s  |  (/) |
> |         mol m-3  |            mol∕m³  |  (/) |
> |             psu  |               psu  |  (/) |
> |           J m-2  |             kg∕s²  |  (!) |
> |        kg-2 s-1  |          ∕(kg²⋅s)  |  (!) |
> |             K*K  |                K²  |  (/) |
> |      kg m-3 s-1  |         kg∕(m³⋅s)  |  (/) |
> |      m3 s-1 m-1  |              m²∕s  |  (!) |
> |(kg m-3) (m s-1)  |         kg∕(m²⋅s)  |  (!) |
> |      W m-2 nm-1  |  9.999999999999999E8⋅kg∕(m⋅s³)  |  (!) |



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