Unit functions

Unit functions are used to define and get information of units, like range and lowerbound

• baseunit - configure values units as base units, e.g. meter or second.

• tiledunit - configure segmented/tiled domain unit

• nrofrows - set the number of elements of a domain unit
• range - sets the range for a unit
• cat_range - sets the range for a categorical unit
• gridset - configures a grid domain with a projection to a coordinate system

• lowerbound - the minimum allowed value for the unit argument
• upperbound - the maximum allowed value for the unit argument
• boundcenter - the mean value for the unit argument
• boundrange - the size of the range of the unit

• domainunit - a reference to the domain unit of attribute a
• valuesunit - a reference to the values unit of attribute a
• defaultunit - the literal valuetype

• getprojectionbase - get the unit used for the coordinate system
• getprojectionoffset - get the coordinate of the top left grid cell in the coordinate system
• getprojectionfactor - get the gridsize in both X and Y directions.
• getmetricfactor - get the factor in the metric of the unit used for the coordinate system