XML Forms Data Format (XFDF) Specification - Adobe Partners
XML Forms Data Format (XFDF) Specification - Adobe Partners
XML Forms Data Format (XFDF) Specification - Adobe Partners
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Appendix: <strong>XFDF</strong> Definitions for Comments on 3D or Rich Media Annotations<br />
<strong>XML</strong> <strong>Forms</strong> <strong>Data</strong> <strong>Format</strong> <strong>Specification</strong> usertext 123<br />
Content model<br />
Integer.<br />
Attributes<br />
usertext<br />
None.<br />
The usertext tag contains an optional text string that is appended to the end of the measurement.<br />
Content model<br />
Text String.<br />
Attributes<br />
None.<br />
Perpendicular Dimension Related Elements<br />
A perpendicular measurement is used to denote the perpendicular distance between two geometric<br />
entities (normally two lines or a point and a line), as displayed in the following figure.<br />
As illustrated in the figures above, a perpendicular measurement markup consists of two filled circles at<br />
the anchor points, and two parallel extension lines (referred to as leader lines) that start at the anchor<br />
points and extend away from the anchor points. There is also a labeled line with arrowheads on both sides<br />
(referred to as the measure line), which indicates that the distance shown is the perpendicular distance<br />
between the two parallel lines.<br />
The following figure displays the parameters associated with the perpendicular dimension.