YY.2 An Example of Distance Line Defined As A Combined Graphic Object
Now, a distance line is defined as a combined graphic object, i.e., grouping a text object with a polyline graphic object (see Figure YY-2). Distance lines are typically used for measurements and for computing the grayscale values along this line to build up a profile curve.
This simple example is intended to show how the Graphic Group ID (0070,0295) is used for grouping of graphic annotations.
Table YY-3. Graphic Group Module
|
Attribute Name
|
Tag
|
Attribute Value
|
|
Graphic Group Sequence
|
(0070,0234)
|
|
|
>Graphic Group ID
|
(0070,0295)
|
1
|
|
>Graphic Group Label
|
(0070,0207)
|
DistanceLine
|
|
>Graphic Group Description
|
(0070,0208)
|
Measurement Tool
|
Table YY-4. Graphic Annotation Module Attributes
|
Attribute Name
|
Tag
|
Attribute Value
|
|
Graphic Annotation Sequence
|
(0070,0001)
|
…
|
|
…
|
|
|
|
>Text Object Sequence
|
(0070,0008)
|
|
|
>>Anchor Point Annotation Units
|
(0070,0004)
|
PIXEL
|
|
>>Anchor Point
|
(0070,0014)
|
70/20
|
|
>>Anchor Point Visibility
|
(0070,0015)
|
N
|
|
>>Unformatted Text Value
|
(0070,0006)
|
52.20 mm
|
|
>>Graphic Group ID
|
(0070,0295)
|
1
|
|
…
|
|
|
|
>Compound Object Sequence
|
(0070,0009)
|
|
|
>>Graphic Annotation Units
|
(0070,0005)
|
PIXEL
|
|
>>Graphic Dimensions
|
(0070,0020)
|
2
|
|
>>Number of Graphic Points
|
(0070,0021)
|
2
|
|
>>Graphic Data
|
(0070,0022)
|
10\10\150\10
|
|
>>Graphic Type
|
(0070,0023)
|
POLYLINE
|
|
>>Graphic Group ID
|
(0070,0295)
|
1
|
