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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> 3D Comment Related Elements 142<br />

Content model<br />

Double.<br />

Attributes<br />

None.<br />

3D Comment Related Elements<br />

3D comment notes allow users to connect a comment to a specific piece of geometry in the 3D model. The<br />

markup consists of a leader line that connects the model to a text box placed in the 3D scene. The text box<br />

is rendered so that the text is always facing the user. The anchor point defines the connection to the<br />

model. The model space text position tag defines placement of the corner of the text box that lies closest<br />

to anchor point 1 in the current view. The user string field contains the text that is to be fitted into the text<br />

box. If the text box is not large enough, the string is truncated.<br />

The following is an example of a 3D comment.<br />

<br />

3DComment1<br />

<br />

0.008982 -0.019600 0.039761<br />

Base<br />

13<br />

1<br />

0.067426 -0.086996 0.089997<br />

20.000000<br />

0.000000 0.996078 0.000000<br />

This is a 3D comment<br />

<br />

<br />

comment3dmarkup<br />

The comment3dmarkup tag is a container that holds the data defining an instance of a 3D comment<br />

associated to a geometric item.

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