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Page 1276​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Shadow Offset Y​

(0070,0246)​

1C​

Floating point value that defines the shadow offset in Y direction in Anchor​

 

 

 

Point Annotation Units (0070,0004) if used in Text Object Sequence​

 

 

 

(0070,0008)ItemorinGraphicAnnotationUnits(0070,0005)ifusedinGraphic​

 

 

 

Object Sequence (0070,0009) Item. See Section C.10.5.1.3.13.1​

 

 

 

Required if Shadow Style (0070,0244) value is not OFF.​

>ShadowColorCIELab​

(0070,0247)​

1C​

AcolortripletvalueusedtoencodetheShadowColor.Theunitsarespecified​

Value​

 

 

inPCS-Values,andthevalueisencodedasCIELab.SeeSectionC.10.7.1.1.​

 

 

 

Required if Shadow Style (0070,0244) value is not OFF.​

>Shadow Opacity​

(0070,0258)​

1C​

Encodes the shadow opacity. The value is encoded as floating point alpha​

 

 

 

value (0.0-1.0).​

 

 

 

Required if Shadow Style (0070,0244) value is not OFF.​

>Underlined​

(0070,0248)​

1​

Specifies whether or not the text shall be rendered underlined.​

 

 

 

Enumerated Values:​

 

 

 

Y​yes​

 

 

 

N​no​

>Bold​

(0070,0249)​

1​

Specifies whether or not the text shall be rendered in bold.​

 

 

 

Enumerated Values:​

 

 

 

Y​yes​

 

 

 

N​no​

>Italic​

(0070,0250)​

1​

Specifies whether or not the text shall be rendered italicized.​

 

 

 

Enumerated Values:​

Y​yes​

N​no​

C.10.5.1.3.12.1 Text Alignment​

Horizontal Alignment (0070,0242) and Vertical Alignment (0070,0243) define the position of the text relative to the bounding box of​ the text object (see Figure C.10.5-10).​

Top

 

 

Your text here

 

 

 

Center

 

 

Your text here

Your text here

Your text here

 

Your text here

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Your text here

 

 

 

 

Bottom

 

 

Left

Center

Right

 

 

Vertical Alignment

Horizontal Alignment

 

Figure C.10.5-10. Example of Horizontal and Vertical CENTER Alignment​

C.10.5.1.3.13 Line Style Sequence​

Table C.10-5b specifies the Attributes that describe Line Style Sequence Macro.​

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DICOM PS3.3 2020a - Information Object Definitions​ Page 1277​

Table C.10-5b. Line Style Sequence Macro Attributes​

Attribute Name​

Tag​

Type​

 

Attribute Description​

Line Style Sequence​

(0070,0232)​

3​

Sequence that describes the line style.​

 

 

 

Only a single Item shall be included in this Sequence.​

>Pattern On Color CIELab​

(0070,0251)​

1​

Acolortripletvalueusedtoencodetheforeground.Theunitsarespecified​

Value​

 

 

in PCS-Values, and the value is encoded as CIELab. See​

 

 

 

Section C.10.7.1.1.​

 

 

 

ThisvalueshalloverridetheGraphicLayerRecommendedDisplayCIELab​

 

 

 

Value (0070,0401).​

>Pattern Off Color CIELab​

(0070,0252)​

3​

A color triplet value used to encode the color of parts of the line that are​

Value​

 

 

off, i.e., the background. The units are specified in PCS-Values, and the​

 

 

 

value is encoded as CIELab. See Section C.10.7.1.1.​

>Pattern On Opacity​

(0070,0284)​

1​

Encodes the foreground opacity. The value is encoded as floating point​

 

 

 

alpha value (0.0-1.0).​

>Pattern Off Opacity​

(0070,0285)​

3​

Encodes the background opacity. The value is encoded as floating point​

 

 

 

alpha value (0.0-1.0).​

>Line Thickness​

(0070,0253)​

1​

Specifies the line thickness. The dimension for this Attribute is defined by​

 

 

 

Graphic Annotation Units (0070,0005) or Compound Graphic Units​

 

 

 

(0070,0282).​

>Line Dashing Style​

(0070,0254)​

1​

The dashing style of the line to be displayed.​

 

 

 

Enumerated Values:​

 

 

 

SOLID​

 

 

 

 

DASHED​Draws one part of the line with the Pattern On Color CIELab​

 

 

 

 

Value (0070,0251) and the other part with the Pattern Off Color​

 

 

 

 

CIELab Value (0070,0252).​

 

 

 

See Section C.10.5.1.3.13.1.​

>Line Pattern​

(0070,0255)​

1C​

Pattern that defines the line dashing style. The Line Pattern is a 32 bit​

 

 

 

value. If the bit inside the pattern is set to 1 the foreground color is drawn,​

 

 

 

else the background color is drawn.​

 

 

 

Note​

 

 

 

For example, 00FFH defines the dashes with an equal size.​

 

 

 

Required if Line Dashing Style (0070,0254) has a value of DASHED.​

>Shadow Style​

(0070,0244)​

1​

The shadow style of the line to be displayed.​

 

 

 

Enumerated Values:​

 

 

 

NORMAL​ theshadowisdrawnon1sideofthecontourofthetextobject​

 

 

 

OUTLINED​the shadow is drawn around the contour of the text object​

 

 

 

OFF​

no shadow​

 

 

 

See Section C.10.5.1.3.13.2​

>Shadow Offset X​

(0070,0245)​

1​

FloatingpointvaluethatdefinestheshadowoffsetinXdirectioninGraphic​

 

 

 

Annotation Units (0070,0005). See Section C.10.5.1.3.13.2.​

>Shadow Offset Y​

(0070,0246)​

1​

FloatingpointvaluethatdefinestheshadowoffsetinYdirectioninGraphic​

 

 

 

Annotation Units (0070,0005). See Section C.10.5.1.3.13.2.​

>Shadow Color CIELab​

(0070,0247)​

1​

A color triplet value used to encode the Shadow Color. The units are​

Value​

 

 

specified in PCS-Values, and the value is encoded as CIELab. See​

 

 

 

Section C.10.7.1.1.​

- Standard -​

Page 1278​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Shadow Opacity​

(0070,0258)​

1​

Encodestheshadowopacity.Thevalueisencodedasfloatingpointalpha​

 

 

 

value (0.0-1.0).​

C.10.5.1.3.13.1 Line Dashing Style​

TheLineDashingStyle(0070,0254)valueSOLIDindicatesthelinetobedrawnwiththeforegroundcolor,whichisspecifiedbyPattern​

On Color CIELab Value (0070,0251).​

TheLineDashingStyle(0070,0254)Attributedoesnotapplytoshadows,whichshallalwaysberenderedinSOLIDbackgroundcolor.​

C.10.5.1.3.13.2 Shadows​

Shadow Style (0070,0244) contains one of the values OFF, NORMAL or OUTLINED (see Figure C.10.5-11 and Figure C.10.5-12).​ Shadow shall be applied after rotation. The coordinate system of the shadow is relative to the line. Shadow Offset X (0070,0245)​ extends to the right and Shadow Offset Y (0070,0246) extends downward.​

Shadow Offset X = 1

 

 

 

Shadow Offset X = 3

 

 

 

(0070,0245)

(0070,0245)

Shadow Offset Y = 1

 

 

 

Shadow Offset Y = -5

 

 

 

(0070,0246)

 

 

(0070,0246)

 

Figure C.10.5-11. Example for Shadow Style (0070,0244) NORMAL​

The OUTLINED shadow defines a filled outline shadow. The length of the vector given by Shadow Offset X (0070,0245) and Shadow​ Offset Y (0070,0246) defines the radius of the shadow.​

Shadow Offset X = 1 (-1)

 

 

 

Shadow Offset X = 3 (-3)

 

 

 

(0070,0245)

(0070,0245)

Shadow Offset Y = 1 (-1)

 

 

 

Shadow Offset Y = -5 (5)

 

 

 

(0070,0246)

 

 

(0070,0246)

 

Figure C.10.5-12. Example for Shadow Style (0070,0244) OUTLINED​

C.10.5.1.3.14 Fill Style Sequence​

Table C.10-5c specifies the Attributes that describe Fill Style Sequence Macro.​

Table C.10-5c. Fill Style Sequence Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Fill Style Sequence​

(0070,0233)​

3​ Sequence that describes the fill style.​

 

 

 

Only a single Item is permitted in this Sequence.​

>Pattern On Color CIELab​

(0070,0251)​

1​ A color triplet value used to encode the foreground color. The units are​

Value​

 

 

specified in PCS-Values, and the value is encoded as CIELab. See​

 

 

 

Section C.10.7.1.1.​

 

 

 

ThisvalueshalloverridetheGraphicLayerRecommendedDisplayCIELab​

 

 

 

Value (0070,0401).​

>Pattern Off Color CIELab​

(0070,0252)​

3​ A color triplet value used to encode the background color. The units are​

Value​

 

 

specified in PCS-Values, and the value is encoded as CIELab. See​

 

 

 

Section C.10.7.1.1.​

>Pattern On Opacity​

(0070,0284)​

1​ Encodes the foreground opacity. The value is encoded as floating point​

 

 

 

alpha value (0.0-1.0).​

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DICOM PS3.3 2020a - Information Object Definitions​

Page 1279​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>Pattern Off Opacity​

(0070,0285)​

1​

Encodes the background opacity. The value is encoded as floating point​

 

 

 

alpha value (0.0-1.0).​

 

>Fill Mode​

(0070,0257)​

1​

The texture of the closed object to be displayed.​

 

 

 

 

Enumerated Values:​

 

 

 

 

SOLID​

 

 

 

 

STIPPELED​

 

 

 

 

See Section C.10.5.1.3.14.1.​

 

>Fill Pattern​

(0070,0256)​

1C​

A binary fill pattern. A set bit corresponds to foreground. An unset bit​

 

 

 

corresponds to background.​

 

A128bytevaluedefininga32x321bitmatrix.Thisfillpatternisreplicated​ in tiles inside the boundaries of the graphic type.​

The most significant bit corresponds to the leftmost pixel in the row.​

The fill pattern relates to display pixels where one bit value corresponds​ to one display pixel.​

Required if Fill Mode (0070,0257) equals STIPPELED.​

C.10.5.1.3.14.1 Fill Mode​

Fill Mode (0070,0257) value SOLID indicates that the graphic object is filled with the foreground.​

Fill Mode (0070,0257) Attribute does not interfere with (line) shadows, which shall always be rendered in SOLID background color.​

C.10.6 Spatial Transformation Module​

This Module defines a manner of rotating an image by increments of ninety degrees and flipping an image.​

Table C.10-6. Spatial Transformation Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Image Rotation​

(0070,0042)​

1​

Howfartorotatetheimageclockwiseindegrees,beforeanyImageHorizontal​

Flip (0070,0041) is applied.​

Enumerated Values:​

270​

180​

90​

0​

Note​

Negative values are not permitted since the Value Representation​ is unsigned.​

- Standard -​

Page 1280​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

Image Horizontal Flip​

(0070,0041)​

1​

Whether or not to flip the image horizontally after any Image Rotation has​

 

 

 

been applied such that the left side of the image becomes the right side.​

Enumerated Values:​

Y​yes​

N​no​

Note​

No vertical flip is specified since the same result can be achieved by​ a combination of a 180 degree rotation and a horizontal flip.​

Note​

Given the definition of the Grayscale Transformation Sequence in PS3.4, it is apparent that the rotation, flipping and magni-​ fication will be applied AFTER the application of any bit-mapped overlays or graphic annotations that are specified in the​ image pixel spaces, but BEFORE the application of graphic annotations that apply in the Specified Displayed Area relative​ space.​

C.10.7 Graphic Layer Module​

This Module defines the characteristics of the layers in which overlays, graphic and text may be rendered.​

Layers group together graphics that are related. It is recommended that a layer be displayed such that it may be distinguished from​ other layers that have a different value for Graphic Layer Order (0070,0062).​

Note​

The transparency, opacity, and any other interaction (such as exclusive or) with underlying layers or image data are not​ specified and are at the discretion of the implementation.​

Table C.10-7. Graphic Layer Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Graphic Layer Sequence​

(0070,0060)​

1​ A Sequence of Items each of which represents a single layer in which​

 

 

 

overlays, curves, graphics or text may be rendered.​

 

 

 

One or more Items shall be included in this Sequence.​

 

 

 

An Item is required for each layer referenced from the Graphic Annotation​

 

 

 

Module or the Overlay Activation Module.​

>Graphic Layer​

(0070,0002)​

1​ A string that identifies the layer.​

Note​

This identifier may be used by other Attributes within the same​ presentation state instance to reference this layer. There is no​ requirement for the same identifiers to be used in different​ presentation states, and there is no mechanism for referencing​ layers in other presentation states. That is, a UID is not required.​

>Graphic Layer Order​ (0070,0062)​ 1​ An integer indicating the order in which it is recommended that the layer be​ rendered,ifthedisplayiscapableofdistinguishing.Lowernumberedlayers​ are to be rendered first.​

- Standard -​

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