Music Encoding Initiative Guidelines

Module

MEI

Used by

Attribute ClassesThese class-based attributes use data.MEASUREMENTUNSIGNED

att.stems/@stem.lenEncodes the stem length.

att.width/@widthMeasurement of the horizontal dimension of an entity.

att.hairpin.vis/@openingSpecifies the distance between the lines at the open end of a hairpin dynamic mark.

Data TypesThese other Data Types reference data.MEASUREMENTUNSIGNED

data.LINEWIDTHDatatype of line width measurements.

data.MEASUREMENTTYPOGRAPHYUNSIGNEDMeasurements used for typographical features. Unlike data.MEASUREMENTTYPOGRAPHYSIGNED, only positive values are allowed.

Declaration


                                 <macroSpec rend="add" ident="data.MEASUREMENTUNSIGNED" module="MEI" type="dt">
                                    
                                    <desc xml:lang="en">Measurement expressed in real-world (
                                       <abbr>e.g.</abbr>, centimeters, millimeters, inches, points,
                                       picas, or pixels) or virtual units (vu). 'vu' is the default value. Unlike
                                       data.MEASUREMENTSIGNED, only positive values are allowed.</desc>
                                    
                                    <content>
                                       
                                       <rng:data type="token">
                                          
                                          <rng:param name="pattern">(\+)?\d+(\.\d+)?(cm|mm|in|pt|pc|px|vu)?
</rng:param>
                                          </rng:data>
                                       </content>
                                    </macroSpec>