complexType ConversionToPreferredUnitType

diagram
namespace	http://www.opengis.net/gml
type	extension of gml:UnitOfMeasureType
properties	base  gml:UnitOfMeasureType
children	gml:factor gml:formula
used by	elements  conversionToPreferredUnit roughConversionToPreferredUnit
annotation	documentation The inherited attribute uom references the preferred unit that this conversion applies to. The conversion of a unit to the preferred unit for this physical quantity type is specified by an arithmetic conversion (scaling and/or offset). The content model extends gml:UnitOfMeasureType, which has a mandatory attribute uom which identifies the preferred unit for the physical quantity type that this conversion applies to. The conversion is specified by a choice of - gml:factor, which defines the scale factor, or - gml:formula, which defines a formula by which a value using the conventional unit of measure can be converted to obtain the corresponding value using the preferred unit of measure. The formula defines the parameters of a simple formula by which a value using the conventional unit of measure can be converted to the corresponding value using the preferred unit of measure. The formula element contains elements a, b, c and d, whose values use the XML Schema             type double. These values are used in the formula y = (a + bx) / (c + dx), where x is a value using this unit, and y is the corresponding value using the base unit. The elements a and d are optional, and if values are not provided, those parameters are considered to be zero. If values are not provided for both a and d, the formula is equivalent to a fraction with numerator and denominator parameters.
source	<xs:complexType name="ConversionToPreferredUnitType">   <xs:annotation>     <xs:documentation>The inherited attribute uom references the preferred unit that this conversion applies to. The conversion of a unit to the preferred unit for this physical quantity type is specified by an arithmetic conversion (scaling and/or offset). The content model extends gml:UnitOfMeasureType, which has a mandatory attribute uom which identifies the preferred unit for the physical quantity type that this conversion applies to. The conversion is specified by a choice of - gml:factor, which defines the scale factor, or - gml:formula, which defines a formula by which a value using the conventional unit of measure can be converted to obtain the corresponding value using the preferred unit of measure. The formula defines the parameters of a simple formula by which a value using the conventional unit of measure can be converted to the corresponding value using the preferred unit of measure. The formula element contains elements a, b, c and d, whose values use the XML Schema             type double. These values are used in the formula y = (a + bx) / (c + dx), where x is a value using this unit, and y is the corresponding value using the base unit. The elements a and d are optional, and if values are not provided, those parameters are considered to be zero. If values are not provided for both a and d, the formula is equivalent to a fraction with numerator and denominator parameters.</xs:documentation>   </xs:annotation>   <xs:complexContent>     <xs:extension base="gml:UnitOfMeasureType">       <xs:choice>         <xs:element name="factor" type="double"/>         <xs:element name="formula" type="gml:FormulaType"/>       </xs:choice>     </xs:extension>   </xs:complexContent> </xs:complexType>

element ConversionToPreferredUnitType/factor

diagram
namespace	http://www.opengis.net/gml
type	xs:double
properties	isRef  0 content  simple
source	<xs:element name="factor" type="double"/>

element ConversionToPreferredUnitType/formula

diagram
namespace	http://www.opengis.net/gml
type	gml:FormulaType
properties	isRef  0 content  complex
children	gml:a gml:b gml:c gml:d
source	<xs:element name="formula" type="gml:FormulaType"/>

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