YY.2 AN EXAMPLE OF DISTANCELINE 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.

[pic]

Figure YY-2Combined Graphic Object ‘DistanceLine’

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