Unformatted Text Value Attribute
| Tag | (0070,0006) |
|---|---|
| Type | Required (1) |
| Keyword | UnformattedTextValue |
| Value Multiplicity | 1 |
| Value Representation | Short Text (ST) |
Text data that is unformatted and whose manner of display within the defined bounding box is implementation dependent. See Section C.11.18.1.1.
The text value may contain spaces, as well as multiple lines separated by CR LF, but otherwise no format control characters (such as horizontal or vertical tab and form feed) shall be present, even if permitted by the Value Representation of ST.
The text shall be interpreted as specified by Specific Character Set (0008,0005) if present in the SOP Instance.
Note
The text may contain single or multi-byte characters and use code extension techniques as described in PS3.5 if permitted by the values of Specific Character Set (0008,0005).
Section C.11.18.1.1
C.11.18.1.1 Unformatted Text Value and Display Environment Spatial Position
The Unformatted Text Value (0070,0006) rendered in Display Environment Spatial Position (0072,0108) need not be confined to the specified bounding box.
Note
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An implementation may render text outside the confines of the bounding box if necessary to display all the specified text.
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Alternatively, an implementation may choose to render the text in a scrolling box, or a link to another fixed or popup window as appropriate.
When the text bounding box overlaps an Image Box (from the Structured Display Image Box Module), the text box has a higher display priority (i.e., it is on top of the image box). The background color of the bounding box is undefined.
Note
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Commonly, the background region of the bounding box around the text will be rendered "transparently", i.e., the image will be visible, though some implementations may choose to opacify the bounding box behind the text to improve its readability.
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With a transparent background, for example, an implementation may choose an "exclusive or" style opacification to be sure that the text is discernible over light and dark portions of the image.
The size, font, and rotation of the individual rendered text characters are unspecified.