svg:CoordinateType

http://www.w3.org/TR/SVG/types.html#DataTypeCoordinate
a <co-ordinate>
 

a coordinate, which is a number optionally followed immediately by a unit identifier. Perhaps it is possible to represent this as a union by declaring unit idenifiers as a type?

Simple Type Information

Used By

Attributes svg:circleType/@cx, svg:circleType/@cy, svg:cursorType/@x, svg:cursorType/@y, svg:descTitleMetadata/@x, svg:descTitleMetadata/@y, svg:ellipseType/@cx, svg:ellipseType/@cy, svg:filterType/@x, svg:filterType/@y, svg:filter_primitive_attributes/@x, svg:filter_primitive_attributes/@y, svg:foreignObjectType/@x, svg:foreignObjectType/@y, svg:imageType/@x, svg:imageType/@y, svg:lineType/@x1, svg:lineType/@x2, svg:lineType/@y1, svg:lineType/@y2, svg:linearGradientType/@x1, svg:linearGradientType/@x2, svg:linearGradientType/@y1, svg:linearGradientType/@y2, svg:markerType/@refX, svg:markerType/@refY, svg:maskType/@x, svg:maskType/@y, svg:patternType/@x, svg:patternType/@y, svg:radialGradientType/@cx, svg:radialGradientType/@cy, svg:radialGradientType/@fx, svg:radialGradientType/@fy, svg:rectType/@x, svg:rectType/@y, svg:svgType/@x, svg:svgType/@y, svg:textType/@x, svg:textType/@y, svg:useType/@x, svg:useType/@y

Source 

<simpleType name="CoordinateType">
  <annotation>
    <documentation source="http://www.w3.org/TR/SVG/types.html#DataTypeCoordinate">a <co-ordinate></documentation>
    <documentation>a coordinate, which is a number optionally followed immediately by a unit identifier. Perhaps it is possible to represent this as a union by declaring unit idenifiers as a type?</documentation>
  </annotation>
  <restriction base="string">
    <pattern value="((((\+|\-)?((\d+)))|((\+|\-)?(((((\d+)?\.(\d+))|((\d+)\.))([eE](\+|\-)?(\d+))?)|((\d+)([eE](\+|\-)?(\d+))))))(em|ex|px|pt|pc|cm|mm|in|%)?)"/>
  </restriction>
</simpleType>