XML Forms Data Format (XFDF) Specification - Adobe Partners

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Appendix: XFDF Definitions for Comments on 3D or Rich Media Annotations XML Forms Data Format Specification angularmarkup 130 The text layout is defined in the similar manner as for other dimensions. The lower left corner of the text box is positioned at the text anchor point (TP) and the text’s X axis is defined by the vector TX. The vector TX is expected to be orthogonal with the annotation plane normal. The text’s up direction is defined as the cross product of the annotation plane normal and the text X axis, in the direction defined by the TY parameter. The measurement value is interpreted as either being in degrees or radians as defined by the (DR) value and the appropriate label string is created. There are three parts to the text string displayed with the measuremen;, a numeric value, a degree, or radians string and an optional user string. The display of the numeric value field number is also controlled by the precision value, which indicates how many digits to the right of the decimal point should be displayed. The viewer can convert the numeric value to a string and combine it with the degrees or radians string and user text as appropriate; this process is viewer dependent. Special cases: ● Parallel direction vectors are invalid and no markup is generated. ● If the text position TP is outside the cone of the angle, an extension line is added to connect the text with the angle arc. The following is an example of an angular measurement. Measurement1 -1.000000 0.000000 0.000000 -0.051400 -0.146100 0.052200 0.000000 0.701517 0.712652 Base -0.051400 -0.152400 0.036819 0.000000 0.000000 -1.000000 Base -0.051400 -0.136501 0.047616 0.000000 -0.707953 -0.706260 -0.000000 -0.706260 0.707953 20.000000 0.000000 1.000000 0.000000 135.451096 3 angularmarkup The angularmarkup tag is a container that holds the data defining an instance of a angular measurement between two linear geometric items. Content model (annoplane & anchor1 & anchor1partname & leaderdirection1 & anchor2 & anchor2partname & leaderdirection2 & textposition & textydirection & textsize & markupcolor & value & units & precision & usertext)
Appendix: XFDF Definitions for Comments on 3D or Rich Media Annotations XML Forms Data Format Specification annoplane 131 Attributes radians Optional Boolean. If true, the angle measure is defined in radians. The default is false (angle in degrees). annoplane The annoplane tag contains a list of three doubles defining the normal for the 3D annotation plane on which the measurement markup will lie. Content model A list of three doubles. Attributes anchor1 None. The anchor1 tag contains a list of three doubles defining the model space position of the first anchor point in world space. It is assumed that this is a position on the 3D model associated with this view. Content model A list of three doubles. Attributes None. anchor1partname The anchor1partname tag defines the node name for the part that the point anchor1 lies on. Content model Text String. Attributes None. leaderdirection1 The leaderdirection1 tag contains a list of three doubles defining the model space direction of the leader line associated with anchor point 1.
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XML Forms Data Format Specification
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Introduction to XFDF XML Forms Data
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XFDF Reference XML Forms Data Forma
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XML Forms Data Format (XFDF) Specification - Adobe Partners

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