Adobe 12020596 Supplement Manual page 68

Adobe Acrobat SDK
Adobe® Supplement to the ISO 32000
An angular measurement markup consists of two anchor points,
two linear entities whose angle is being measured. Connected to each anchor point is an extension line
that is collinear with the edge it measures. A labeled arc, with an arrowhead at each end, connects the two
extension lines, making it clear which angle is being measured.
In addition to the entries in
following entries are defined for a 3D measurement dictionary with a
angular measurement.
KEY
AP
A1
D1
N1
A2
D2
"TABLE 9.39a Entries in a 3D measurement/markup dictionary" on page
TABLE 9.39d Additional entries in a 3D measurement/markup dictionary
for a 3D angular dimension measurement
TYPE VALUE
array (Required; ExtensionLevel 3) A three-element array of numbers specifying
the 3D annotation plane on which the measurement markup lies.
array (Required; ExtensionLevel 3) A three-element array of numbers specifying
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.
array (Required; ExtensionLevel 3) A three-element array of numbers specifying
the direction vector for the leader line associated with the first anchor
point (
text string (Optional; ExtensionLevel 3) The name of the part (or model tree node)
associated with anchor point 1 (
the part exists and is visible. If not, the measurement is not displayed. If
omitted, no validation occurs.
array (Required; ExtensionLevel 3) A three-element array of numbers specifying
the model space position of the second anchor point in world space. It is
assumed that this is a position on the 3D model associated with this
view.
array (Required; ExtensionLevel 3) A three-element array of numbers specifying
the direction vector for the leader line associated with the second
anchor point (
Multimedia Features (Chapter 9 in PDF Reference)
9.5.6 Persistence of 3D Measurements and Markups
FIGURE 9.22
).
A1
).
A2
FIGURE 9.22, one located on each of the
value of
Subtype
). The part name is used to verify that
A1
68
62, the
for 3D
AD3