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 |