17.18.81 ST_SignedTwipsMeasure

This simple type specifies that its contents contain either:

• A positive or negative whole number, whose contents consist of a measurement in twentieths of a point
• (equivalent to 1/1440th of an inch), or
• A positive decimal number immediately following by a unit identifier.

The contents of this measurement are interpreted based on the context of the parent XML element.

[Example: Consider an attribute value of 720 whose simple type is ST_SignedTwipsMeasure. This attribute value specifies a size of one-half of an inch or 36 points (720 twentieths of a point = 36 points = 0.5 inches). end example]

[Example: Consider an attribute value of -12.7mm whose type is ST_SignedTwipsMeasure. This attribute value specifies a size of -0.0127 meter or negative one-half of an inch or -36 points. end example]

This simple type is a union of the following types:

• The ST_UniversalMeasure simple type (22.9.2.15).
• The W3C XML Schema integer datatype.

[Note: The W3C XML Schema definition of this simple type’s content model (ST_SignedTwipsMeasure) is located in A.1. end note]