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gistDimensionedUnits
gist8.0.0 dimensioned units of measure. This extension allows (and requires) you to have a conversion factor for all units with the same dimension. If you introduce MilesPerHour you will have to supply the conversion to MetersPerSecond (even though the system "knows" how to convert Miles to meters and hours to seconds. You will have to supply and addtional conversion when you introduce KilometersPerHour. Any new combination of primtive rations requires a new Dimension. While this is a burden, it allows units to be converted in sparql
Created with e6Tools Graphical OWL Editor from S:\_SemanticArts\Offerings\gist\__externallyReleasedGists\gist8.0.0\gist8.0.0.vsd Page:UnitDim
For a complex unit refers to a unit that has all the component parts in SI
Note this kind of conversion will only work with temperatures if they are in Kelvin or Rankine (with a true 0). You multiple to get to the base, divide to go from the base. mph to mps is .44704. The multiple from kph to mps is .277778 . To convert 60 mph to kph is (60 * .44704 / .277778 or 96.56056 kph
A ratio unit whos numerator and denominator reduce to 1
A ratio unit whos numerator and denominator reduce to 1
A unit that is expressed in units that have no conversions. It may be a simple unit. It may also be a product or ratio unit that bottoms out in simple units.
NOTE: coherent unit is the physics term for this, informally you might think of it as the standard unit for a given dimension.
NOTE: in principle, the CoherentUnit for a ProductUnit or RatioUnit can be inferred by recursively decomposing the products and ratios into their respective CoherentUnits, bottoming out in SimpleUnits
EXAMPLEs: a simple unit: kilogram
EXAMPLEs: the standard unit for acceleration is meters per square second (feet per square second requires a conversion)