Technical Definition

Provides the measure unit for all values except the font size.

Usage Notes

The default value is 1/10 of mm.

Category Notes

This field is common in ALTO files. For all, string-choice: “pixel”, “mm10” or “inch1200”.

Instantiations

CAAL alto\Description\MeasurementUnit MCH inch1200
DEAL alto\Description\MeasurementUnit MCH pixel
EUAL alto\Description\MeasurementUnit MCH mm10
F1AL alto\Description\MeasurementUnit MCH mm10
F2AL pageOCRDATA\content\altoXML\alto\Description\MeasurementUnit MCH mm10
PPAL alto\Description\MeasurementUnit MCH mm10
TRAL alto\Description\MeasurementUnit MCH pixel