Terms and Definitions. Information processing systems. Machine graphics. Terms and definitions Permanent marker GOST 27459 87

GOST 27459-87
Group E00

INTERSTATE STANDARD

INFORMATION PROCESSING SYSTEMS

MACHINE GRAPHICS

Terms and Definitions

Information processing systems. Computer graphics.
Terms and definitions

ISS 01.040.35
35.140
OKSTU 4001

Date of introduction 1988-07-01

INFORMATION DATA

1. By Decree of the USSR State Committee on Standards dated October 28, 1987 N 4052, the standard of the Council for Mutual Economic Assistance ST CMEA 5712-86 "Information processing systems. Computer graphics. Terms and definitions" was put into effect directly as a state standard of the USSR from 07/01/88

2. INTRODUCED FOR THE FIRST TIME

3. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

4. REISSUE

This standard establishes terms and definitions of concepts in the field of computer graphics.
The terms established by this standard are required for use in documentation and literature of all types within the scope of standardization or using the results of this activity.
The standard must be applied in conjunction with GOST 15971 and GOST 19781.

1. Standardized terms with definitions are given in Table 1.

Table 1

Term

Definition

GENERAL CONCEPTS

GENERAL CONCEPTS

1. Machine graphics
Computer graphics

A set of methods and techniques for converting data into a graphical representation or graphical representation into data using a computer

2. Line graphics
Line graphics

An area of ​​computer graphics in which images are generated using rendering commands and coordinate data

3. Raster graphics
Raster graphics

An area of ​​computer graphics in which images are generated from an array of pixels arranged in rows and columns

4. Visualization Team
Display command

A command that changes the state or controls the action of a graphics device.
Note. A graphics device is understood as a device that provides input into a computer and (or) output of graphic data from a computer.

5. Absolute Rendering Team
Absolute command

Rendering command that uses absolute coordinates

6. Relative render command
Relative command

Render command that uses relative coordinates

7. Addressability
Addressability

Number of addressable positions along each coordinate axis of physical space

8. Addressable position
Addressable point

Any point in physical space that can be specified by coordinates

PRESENTATION AND STORAGE OF IMAGES

9. Encoded Image
Coded image

Presentation of an image in a form convenient for storage and processing using a computer

10. Absolute coordinate
Absolute coordinate

One of the coordinates defining the position of the addressed point relative to the origin of a given coordinate system

11. Relative coordinate
Relative coordinate

One of the coordinates defining the position of the addressed point relative to another addressed point

12. Incremental coordinate
Incremental coordinate

Relative coordinate in case the previous addressed position is the reference point

13. User coordinate
User coordinate

Coordinate specified by the user and expressed in a coordinate system, independent of devices

14. World coordinate
World coordinate

Device-independent Cartesian coordinate used in an application program to specify graphical inputs and outputs

15. Device coordinate
Device coordinate

Coordinate specified in a device-specific coordinate system

16. Normalized coordinate
Normalized device coordinate

A coordinate specified in an intermediate, device-independent coordinate system and normalized relative to some range, usually from 0 to 1.
Note. The image, expressed in normalized coordinates, is located in the same relative positions when rendered to any device

17. Output primitive
Output primitive

A basic graphic element that can be used to construct an image.
Note. Output primitives can be, for example, a point, a line segment, a sequence of characters

18. invisible line
Hidden line

A line segment on the projection of a three-dimensional object that is missing from the image because it is covered by the surface of the same or another object

19. Wireframe view
Wire frame representation

A rendering mode that shows the edges of a 3D object regardless of whether they are visible or not

20. Segment
Segment

A collection of output primitives that can be manipulated as a single unit.
Note. A segment can consist of several individual points, line segments, or other output primitives

21. Marker
Marker

A symbol of a given type that is used to indicate a specific position on the rendering surface

22. Input primitive
Input primitive

A collection of data received from input devices.
Note. Input devices can be: keyboard, alternative input device, position input device, pointing device, number input device or position array input device

23. Virtual space
Virtual space

A space in which the coordinates of output primitives are independent of devices

VISUALIZATION OF IMAGES

24. Visualization
Display

Visual representation of data

25. Image
Display image

A set of output primitives and (or) segments that can be simultaneously displayed on the visualization surface

26. Soft copy
Soft copy

Unstorable image of graphic data

27. Physical space
Device space

The space defined by the full set of addressable positions of the graphics device

28. Visualization space
Display space

The portion of physical space corresponding to the area available for displaying images

29. Pixel
Pixel

The smallest element of a rendering surface that can be independently assigned color, intensity, and other image characteristics

30. Absolute vector
Absolute vector

A vector whose starting and ending points are specified in absolute coordinates

31. Relative vector
Incremental vector

A vector whose end point is specified as an offset from its starting point

32. Increment value
Increment size

Distance between adjacent addressable positions on the rendering surface

33. Raster unit
Raster unit

A unit defined by the distance between the centers of adjacent pixels

34. Plotter step
Plotter step size

Increment value on the plotter

35. Image blanking
Blanking

Suppress rendering of one or more output primitives or segments

36. Image flickering
Blinking

Intentional periodic change in the intensity of one or more output primitives or segments

37. Flashing image
Flicker

Unwanted pulsations in the image on the cathode ray tube screen.
Note. Flickering occurs when the refresh rate is too low relative to the characteristics of the screen's phosphor coating

38. Wrapping an image
Wraparound

An effect in which part of the image that extends beyond one of the boundaries of the visualization space appears at the opposite boundary of this space

FUNCTIONAL DEVICES

39. Rendering surface
Display surface

The physical environment of the graphics device on which images are rendered.
Note. The visualization surface can be a cathode ray tube screen, paper in a plotter

40. Graphic terminal
Display console

A terminal that includes at least one rendering surface and may include one or more input devices

41. Raster display
Raster display device

A display in which an image is generated using raster graphics techniques

42. Vector display
Directed beam display device

A display in which output primitives can be generated in any order specified by the program

43. Memory cathode ray tube
Storage tube

According to GOST 13820

44. Plasma panel
Plasma panel

Part of a display that consists of a grid of electrodes in a flat panel filled with gas.
Note. The image can exist for a long time without regeneration

45. Drum plotter
Drum plotter

A plotter that displays an image on a rendering surface mounted on a rotating drum

46. Tablet plotter
Flatbed plotter

A plotter that displays an image on a flat storage medium

47. Raster plotter
Raster plotter

A plotter that generates an image on a rendering surface using line-by-line input

48. Electrostatic plotter
Electrostatic plotter

A raster plotter in which the coloring matter is electrostatically fixed to the paper using a series of electrodes

49. Plotter writing unit
Plotting head

The part of the plotter that is used to make a mark on the rendering surface

50. Character generator
Character generator

A functional device that, in order to represent characters, converts their encoded representation into a graphical one

51. Line character generator
Stroke character generator

A character generator that generates character images made up of line segments

52. Dot character generator

A symbol generator that generates symbol images made up of dots

53. Curve generator
Curve generator

A functional device that converts a coded representation of a curve into a graphical one

54. Vector generator
Vector generator

A functional device that generates directed straight line segments

55. UVP position input device
Locator

Input device providing position coordinates

56. Ball pointer
Control ball

A ball rotating about its center, used as a position input device

57. Lever indicator
Joy-stick

A lever that has at least two degrees of freedom, used as a position input device

58. Wheel type device
"Wheel"
Tumb wheel

A wheel rotating around its axis representing the value of a scalar quantity.
Note. A pair of wheels can be used as a position input device

59. Mouse type device
"Mouse"
"Mouse"

A position input device that is actuated by movement across a surface.
Note. To control a mouse-type device, use a ball or a pair of wheels

60. Tablet
Tablet

A position input device, which is a special surface with a mechanism that allows you to specify the coordinates of its location

61. Pointing device
Pick device

An input device that is used to specify a specific output primitive or segment

62. Light pen
Light-pen

A light-sensitive pointing device that is used by pointing it at an imaging surface

63. Light button
Light button

Output primitives used to emulate a function key using a pointing device

64. Number input device
Valuator

An input device that provides the value of a scalar quantity.
Note. Such devices include a wheel-type device, a potentiometer

65.
Choice device

An input device that provides one value from a set of alternatives.
Note. Such a device could be a functional keyboard

66.
Stroke device

An input device that provides an ordered sequence of coordinates that corresponds to the path of motion of the input device.
Note. The position input device reads data at a constant rate

PROCESSES AND METHODS OF OPERATION

67. Image regeneration
Image regeneration

The sequence of actions required to regenerate an image from its memory representation

68. Regeneration
Refresh

The process of repeatedly reproducing an image on a rendering surface so that the image remains visible

69. Regeneration frequency
Refresh rate

Number of image reproductions performed in 1 second

70. Echo
Echo

Immediate notification to the graphic terminal operator of the current values ​​that may be represented by the input device

71. Cursor
Cursor

A movable visible mark used to indicate the position on the render surface at which the next operation will be performed

72. Tracing
Tracking

Move a trace symbol

73. Trace symbol
Tracking symbol

A symbol on a rendering surface that indicates a position corresponding to coordinate data provided by a position input device

74. Light pen pointing
Light pen detection

Light pen detection of light generated by an output primitive on a render surface

75. Aiming symbol
Aiming symbol

A circle or other illuminated shape on the rendering surface used to indicate the area in which the presence of a light pen can currently be detected

76. Detectable element
Detectable element

An output primitive that can be detected by a pointing device

77. Rubber thread method
Rubber banding

Moves the common ends of a set of straight line segments while leaving the other line segment ends fixed

78. Drawing
Inking

Creating lines by moving the position input device across the rendering surface, leaving a trail behind it, similar to a pencil drawing a line on paper

79. Towing method
Dragging

Moving one or more segments along the display surface by shifting them along the path defined by the position input device

80. Selection
Highlighting

An action aimed at highlighting an image of an output primitive or segment by modifying its visual attributes

81. Transfer
Translating

Offset output primitives by the same vector

82. Scaling
Scaling

Enlarge or reduce all or part of the image.
Note. Scaling can be carried out optionally with the same factor in all directions

83. Turn
Rotation

Rotating output primitives around a given axis

84. Mirror reflection
Mirroring

Rotate output primitives 180° around some axis in the plane of the rendering surface

85. Window
Window

A given part of virtual space

86. Output field
Viewport

A specified portion of the visualization space

87. View conversion
Viewing transformation

A transformation that binds the borders and contents of a window to the borders and contents of an output field

88. Clipping
Clipping

Removing output primitives or parts thereof that lie outside the specified area

89. Shielding
Shielding

Suppressing output primitives or parts thereof that fall inside a specified region

90. Scrolling
Scrolling

Moves a window vertically or horizontally so that new data appears inside the output field and old data disappears

91. Vertical scrolling
Rolling

Scrolling limited to up and down directions

92. Zoom
Zooming

A gradual change in the scale of an image in order to create a visual sensation of movement of the entire visualized group or part of it towards or away from the observer.
Note. Scaling factors should be the same in all directions

93. Tumbling
Tumbling

Dynamic representation of output primitives rotating around an axis whose orientation continuously changes in space

94. Pan
Panning

Gradual transfer of the image in order to create a visual sensation of movement in the horizontal direction.
Note. Panning can be limited to the output field

95. Background image
Background image

A portion of an image, similar to a standard shape, that remains unchanged under certain sequences of operations

96. Overlay image
Foreground image

Part of the image that can change during any operation

97. Standard form
Form overlay

A form used as the main image.
Note. Forms include a sheet, grid or map

98. Visualization of a standard form
Form flash

Visual representation of a typical form

2. For each concept, one standardized term is established.
The use of terms that are synonyms of a standardized term is not allowed.

2.1. For individual standardized terms, Table 1 provides short forms for reference, which are allowed to be used in cases that exclude the possibility of their different interpretations.

2.2. The given definitions can be changed, if necessary, by introducing derived features into them, revealing the meanings of the terms used in them, indicating the objects included in the scope of the defined concept. Changes must not affect the scope and content of the concepts defined in this standard.

2.3. Table 1 shows the equivalent standardized terms in English for reference.

3. Alphabetical indexes of terms contained in the standard in Russian and English are given in Tables 2 and 3.

4. Standardized terms are in bold font, their short forms are in light font.

ALPHABETICAL INDEX OF TERMS IN RUSSIAN LANGUAGE

table 2

Term

Term number

Addressability

Vector absolute

Vector relative

Increment value

Visualization

Visualization of a standard form

Selection

Image blanking

Vector generator

Curve generator

Character generator

Dot character generator

Linear character generator

Image generation repeated

Linear graphics

Machine graphics

Raster graphics

Drum plotter

Tablet plotter

Raster plotter

Electrostatic plotter

Vector display

Raster display

Unit raster

Wrapping an image

Image

Encoded image

Image overlay

Background image

Light button

"Wheel"

Visualization Team

Render Command Absolute

Render command relative

Absolute coordinate

Coordinate incremental

World coordinate

Normalized coordinate

Relative coordinate

User coordinate

Device coordinate

Soft copy

Tumbling

Cursor

invisible line

Marker

Scaling

Image flickering

Towing method

Rubber thread method

Flashing image

Window

Mirror reflection

Clipping

Plasma panel

Pan

Transfer

Light pen

Pixel

Tablet

Rendering surface

Turn

Addressable position

Output field

Wireframe representation

View transformation

Input primitive

Output primitive

Scrolling

Scrolling vertical

Visualization space

Virtual space

Space physical

Regeneration

Drawing

Segment

Aiming symbol

Trace symbol

Graphic terminal

Zoom

Tracing

Cathode ray storage tube

UVP

Plotter node writing

Light pen pointing

Lever indicator

Ball pointer

Alternative input device

Position input device

Position sequence input device

Number input device

Wheel type device

Mouse type device

Pointing device

Standard form

Regeneration frequency

Plotter step

Shielding

Detectable element

Echo

ALPHABETIC INDEX OF TERMS IN ENGLISH

Table 3

Term

Term number

Absolute command

Absolute coordinate

Absolute vector

Addressability

Addressable point

Aiming symbol

Background image

Character generator

Choice device

Computer graphics

Control ball

Curve generator

Detectable element

Device coordinate

Device space

Directed beam display device

Display command

Display console

Display image

Display space

Display surface

Dot matrix character generator

Drum plotter

Electrostatic plotter

Flatbed plotter

Foreground image

Form overlay

Highlighting

Image regeneration

Incremental coordinate

Incremental vector

Increment size

Input primitive

Light button

Light pen detection

Line graphics

Normalized device coordinate

Output primitive

Plasma panel

Plotter step size

Plotting head

Raster display device

Raster graphics

Raster plotter

Refresh rate

Relative command

Relative coordinate

Rubber banding

Storage tube

Stroke character generator

Stroke device

Tracking symbol

User coordinate

Vector generator

Viewing transformation

Virtual space

Wire frame representation

World coordinate

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GOST 27459-87 (St sev 5712-86) date of introduction 07/01/88 this standard establishes terms and definitions of concepts in the field of computer graphics. the terms established by this standard are mandatory for use in all types of documentation and literature that are within the scope of standardization or use the results of this activity. This standard must be applied in conjunction with GOST 15971-84 and GOST 19781-83.

GOST 27459-87
(ST SEV 5712-86)
Date of introduction 01.07.88
This standard establishes terms and definitions of concepts in the field of computer graphics.
The terms established by this standard are mandatory for use in all types of documentation and literature that are within the scope of standardization or that use the results of this activity.
This standard must be used in conjunction with GOST 15971-84 and GOST 19781-83.
1. Standardized terms with definitions are given in table. 1.
2. For each concept, one standardized term is established. The use of terms that are synonyms of a standardized term is not allowed.
2.1. For individual standardized terms in table. 1 provides short forms for reference purposes, which are permitted to be used in cases where there is no possibility of their different interpretation.
2.2. The given definitions can be changed, if necessary, by introducing derived features into them, revealing the meanings of the terms used in them, indicating the objects included in the scope of the defined concept. Changes must not violate the scope and content of the concepts defined in this standard.
2.3. In table 1 foreign language equivalents of standardized terms in English are given for reference.
3. Alphabetical indexes of terms contained in the standard in Russian and their foreign language equivalents are given in Table. 2-3.
4.Standardized terms are in bold font, their short form is in light font.
2-60 (0
Reproduction is prohibited
Term number
Addressability

7
Vector absolute

30
Vector relative

31
Increment value

32
Visualization

24
Visualization of a standard form

98
Selection

80
Image blanking

35
Vector generator

54
Curve generator

53
Character generator

50
Dot character generator

52
Linear character generator

51
Image generation repeated

67
Linear graphics

2
Machine graphics

1
Raster graphics

3
Drum plotter

45
Tablet plotter

46
Raster plotter

47
Electrostatic plotter

GOST 27459-87 (ST SEV 5712-86) P. 13
Continuation of the table. 2
Term

Term number
Vector display

42
Raster display

41
Unit raster

33
Wrapping an image

38
Image

25
Encoded image

9
Image overlay

96
Typical form image

98
Background image

95
Light button

63
"Wheel"

58
Visualization Team

4
Render Command Absolute

5
Render command relative

6
Absolute coordinate

10
Coordinate incremental

12
World coordinate

14
Normalized coordinate

16
Relative coordinate

11
User coordinate

13
Device coordinate

15
Soft copy

26
Tumbling

93
Cursor

71
invisible line

18
Marker

21
Scaling

82
Image flickering

36
Towing method

79
Rubber thread method

77
Flashing image

37
"Mouse"

59
Window

85
Mirror reflection

84
Clipping

88
Plasma panel

44
Pan

94
Transfer

81
Light pen

62
Pixel

29
Tablet

60
Turn

83
Rendering surface

39
Addressable position

8
Output field

86
Wireframe representation

19
View transformation

87
Input primitive

22
Output primitive

P. 14 GOST 27459-87 (ST SEV 5712-86)
Continuation of the table. 2
Term

Term number
Scrolling

90
Scrolling vertical

91
Virtual space

23
Visualization space

28
Space physical

27
Regeneration

68
Drawing

78
Segment

20
Aiming symbol

75
Trace symbol

73
Graphic terminal

40
Tracing

72
Zoom

92
Cathode ray storage tube

43
UVP

55
Plotter node writing

49
Light pen pointing

74
Lever indicator

57
Ball pointer

56
Alternative input device

65
Position sequence input device

66
Position input device

55
Number input device

64
Wheel-type device

58
Mouse-type device

59
Pointing device

61
Standard form

97
Regeneration frequency

69
Plotter step

34
Shielding

89
Detectable element

76
Echo

70
ALPHABETICAL INDEX OF TERMS IN ENGLISH
Table 3
Term

Term number
Absolute command Absolute coordinate Absolute vector Addressability Addressable point Aiming symbol Background image

GOST 27459-87 (ST SEV 5712-86) P. 15
Continuation of the table. 3
Term

Term number
Blanking

36
Character generator

50
Choice device

88
Coded image

9
Computer graphics

1
Control ball

71
Curve generator

53
Detectable element

76
Device coordinate

15
Device space

27
Directed beam display device

24
Display command

4
Display console

40
Display image

25
Display space

28
Display surface

39
Dot matrix character generator

79
Drum plotter

70
Electrostatic plotter

48
Flatbed plotter

37
Foreground image

96
Form flash

98
Form overlay

97
Hidden line

18
Highlighting

80
Image regeneration

67
Increment size

32
Incremental coordinate

12
Incremental vector

78
Input primitive

57
Light button

62
Light pen detection

74
Line graphics

59
Normalized device coordinate

16
Output primitive

P. 16 GOST 27459-87 (ST SEV 5712-86)
Continuation of the table. 3
Term
Term number
Panning

94
Pick device

29
Plasma panel

44
Plotter step size

34
Plotting head

49
Raster display device

41
Raster graphics

3
Raster plotter

47
Raster unit

33
Relative command

6
Relative coordinate

68
Refresh rate

83
Rubber banding

82
Shielding

26
Storage tube

43
Stroke character generator

51
Stroke device

72
Tracking symbol

73
Translating

93
Tumb wheel

58
User coordinate

64
Vector generator

54
Viewing transformation

86
Virtual space

85
Wire frame representation

19
World coordinate

14
Wraparound

GOST 27459-87 (ST SEV 5712-86) P. 17

1. By Decree of the USSR State Committee on Standards dated October 28, 1987 No. 4052, standard of the Council for Mutual Economic Assistance ST CMEA 5712-86 “Information processing systems. Machine graphics. Terms and definitions" was put into effect directly as a state standard of the USSR from 07/01/88
2. The date of the first inspection is 1993, the inspection frequency is 10 years.
3. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS
Designation of the referenced technical document
Term number
GOST 13820-77
43

INTERSTATE STANDARD

Date of introduction 01.07.88

This standard establishes terms and definitions of concepts in the field of computer graphics.

The terms established by this standard are mandatory for use in all types of documentation and literature that are within the scope of standardization or that use the results of this activity.

This standard must be used in conjunction with GOST 15971 and GOST 19781.

1. Standardized terms with definitions are given in table. 1.

2. For each concept, one standardized term is established. The use of synonymous terms of a standardized term is not allowed.

2.1. For individual standardized terms in table. 1 provides short forms for reference purposes, which are permitted to be used in cases where there is no possibility of their different interpretation.

2.2. The given definitions can be changed, if necessary, by introducing derived features into them, revealing the meanings of the terms used in them, indicating the objects included in the scope of the defined concept. Changes must not violate the scope and content of the concepts defined in this standard.

2.3. In table 1 foreign language equivalents of standardized terms in English are given for reference.

3. Alphabetical indexes of terms contained in the standard in Russian and their foreign language equivalents are given in Table. 2 - 3.

4. Standardized terms are in bold font, their short form is in light font.

Table 1

Definition

GENERAL CONCEPTS

1. Machine graphics

Computer graphics

A set of methods and techniques for converting data into a graphical representation or graphical representation into data using a computer

2. Line graphics

An area of ​​computer graphics in which images are generated using rendering commands and coordinate data

3. Raster graphics

An area of ​​computer graphics in which images are generated from an array of pixels arranged in rows and columns

4. Visualization Team

A command that changes the state or controls the action of a graphics device.

Note. A graphics device is understood as a device that provides input into a computer and (or) output of graphic data from a computer

5. Absolute Rendering Team

Absolute command

Rendering command that uses absolute coordinates

6. Relative render command

Relative command

Render command that uses relative coordinates

7. Addressability

Number of addressable positions along each coordinate axis of physical space

8. Addressable position

Addressable point

Any point in physical space that can be specified by coordinates

PRESENTATION AND STORAGE OF IMAGES

9. Encoded Image

Presentation of an image in a form convenient for storage and processing using a computer

10. Absolute coordinate

Absolute coordinate

One of the coordinates defining the position of the addressed point relative to the origin of a given coordinate system

11. Relative coordinate

Relative coordinate

One of the coordinates defining the position of the addressed point relative to another addressed point

12. Incremental coordinate

Incremental coordinate

Relative coordinate in case the previous addressed position is the reference point

13. User coordinate

Coordinate specified by the user and expressed in a coordinate system, independent of devices

14. World coordinate

World coordinate

Device-independent Cartesian coordinate used in an application program to specify graphical inputs and outputs

15. Device coordinate

Device coordinate

Coordinate specified in a device-specific coordinate system

16. Normalized coordinate

Normalized device coordinate

A coordinate specified in an intermediate, device-independent coordinate system and normalized relative to some range, usually from 0 to 1.

Note. The image, expressed in normalized coordinates, is located in the same relative positions when rendered to any device

17. Output primitive

Output primitive

A basic graphic element that can be used to construct an image.

Note. Output primitives can be, for example, a point, a line segment, a sequence of characters

18. invisible line

A line segment on the projection of a three-dimensional object that is missing from the image because it is covered by the surface of the same or another object

19. Wireframe view

Wire frame representation

A rendering mode that shows the edges of a 3D object regardless of whether they are visible or not

20. Segment

A collection of output primitives that can be manipulated as a single unit.

Note. A segment can consist of several individual points, line segments, or other output primitives

21. Marker

A symbol of a given type that is used to indicate a specific position on the rendering surface

22. Input primitive

A collection of data received from input devices.

Note. Input devices can be: keyboard, alternative input device, position input device, pointing device, number input device or position array input device

23. Virtual space

A space in which the coordinates of output primitives are independent of devices

VISUALIZATION OF IMAGES

24. Visualization

Visual representation of data

25. Image

A set of output primitives and (or) segments that can be simultaneously displayed on the visualization surface

26. Soft copy

Unstorable image of graphic data

27. Physical space in

The space defined by the full set of addressable positions of the graphics device

28. Visualization space

The portion of physical space corresponding to the area available for displaying images

29. Pixel

The smallest element of a rendering surface that can be independently assigned color, intensity, and other image characteristics

30. Absolute vector

A vector whose starting and ending points are specified in absolute coordinates

31. Relative vector

Incremental vector

A vector whose end point is specified as an offset from its starting point

32. Increment value

Distance between adjacent addressable positions on the rendering surface

33. Raster unit

A unit defined by the distance between the centers of adjacent pixels

34. Plotter step

Plotter step size

Increment value on the plotter

35. Image blanking

Suppress rendering of one or more output primitives or segments

36. Image flickering

Intentional periodic change in the intensity of one or more output primitives or segments

37. Flashing image

Unwanted pulsations in the image on the cathode ray tube screen.

Note. Flickering occurs when the refresh rate is too low relative to the characteristics of the screen's phosphor coating

38. Wrapping an image

An effect in which part of the image that extends beyond one of the boundaries of the visualization space appears at the opposite boundary of this space

FUNCTIONAL DEVICES

39. Rendering surface

The physical environment of the graphics device on which images are rendered

Note. The visualization surface can be a cathode ray tube screen, paper in a plotter

40. Graphic terminal

A terminal that includes at least one rendering surface and may include one or more input devices

41. Raster display

Raster display device

A display in which an image is generated using raster graphics techniques

42. Vector display

Directed beam display device

A display in which output primitives can be generated in any order specified by the program

43. Memory cathode ray tube

According to GOST 13820

44. Plasma panel

Part of a display that consists of a grid of electrodes in a flat panel filled with gas.

Note. The image can exist for a long time without regeneration

45. Drum plotter

A plotter that displays an image on a rendering surface mounted on a rotating drum

46. Tablet plotter

A plotter that displays an image on a flat storage medium

47. Raster plotter

A plotter that generates an image on a rendering surface using line-by-line input

48. Electrostatic plotter

Electrostatic plotter

A raster plotter in which the coloring matter is electrostatically fixed to the paper using a series of electrodes

49. Plotter writing unit

The part of the plotter that is used to make a mark on the rendering surface

50. Character generator

Character generator

A functional device that, in order to represent characters, converts their encoded representation into a graphical one

51. Line character generator

Stroke character generator

A character generator that generates character images made up of line segments

52. Dot character generator

A symbol generator that generates symbol images made up of dots

53. Curve generator

A functional device that converts a coded representation of a curve into a graphical one

54. Vector generator

Vector generator

A functional device that generates directed straight line segments

55. UVP position input device

Input device providing position coordinates

56. Ball pointer

A ball rotating about its center, used as a position input device

57. Lever indicator

A lever that has at least two degrees of freedom, used as a position input device

58. Wheel type device

"Wheel"

A wheel rotating around its axis representing the value of a scalar quantity.

Note. A pair of wheels can be used as a position input device

59. Mouse type device

A position input device that is actuated by movement across a surface.

Note. To control a mouse-type device, use a ball or a pair of wheels

60. Tablet

A position input device, which is a special surface with a mechanism that allows you to specify the coordinates of its location

61. Pointing device

An input device that is used to specify a specific output primitive or segment

62. Light pen

A light-sensitive pointing device that is used by pointing it at an imaging surface

63. Light button

Output primitives used to emulate a function key using a pointing device

64. Number input device

An input device that provides the value of a scalar quantity.

Note. Such devices include a “wheel” type device, a potentiometer

An input device that provides one value from a set of alternatives.

Note. Such a device could be a functional keyboard

An input device that provides an ordered sequence of coordinates that corresponds to the path of motion of the input device.

Note. The position input device reads data at a constant rate

PROCESSES AND METHODS OF OPERATION

67. Image regeneration

Image regeneration

The sequence of actions required to regenerate an image from its memory representation

68. Regeneration

The process of repeatedly reproducing an image on a rendering surface so that the image remains visible

69. Regeneration frequency

Number of image reproductions performed in 1 second

70. Echo

Immediate notification to the graphic terminal operator of the current values ​​that may be represented by the input device

71. Cursor

A movable visible mark used to indicate the position on the render surface at which the next operation will be performed

72. Tracing

Move a trace symbol

73. Trace symbol

A symbol on a rendering surface that indicates a position corresponding to coordinate data provided by a position input device

74. Light pen pointing

Light pen detection

Light pen detection of light generated by an output primitive on a render surface

75. Aiming symbol

A circle or other illuminated shape on the rendering surface used to indicate the area in which the presence of a light pen can currently be detected

76. Detectable element

Detectable element

An output primitive that can be detected by a pointing device

77. Rubber thread method

Moves the common ends of a set of straight line segments while leaving the other line segment ends fixed

78. Drawing

Creating lines by moving the position input device across the rendering surface, leaving a trail behind it, similar to a pencil drawing a line on paper

79. Towing method

Moving one or more segments along the display surface by shifting them along the path defined by the position input device

80. Selection

An action aimed at highlighting an image of an output primitive or segment by modifying its visual attributes

81. Transfer

Offset output primitives by the same vector

82. Scaling

Enlarge or reduce all or part of the image.

Note. Scaling can be carried out optionally with the same factor in all directions

83. Turn

Rotating output primitives around a given axis

84. Mirror reflection

Rotating output primitives by 180 around some axis in the plane of the rendering surface

85. Window

A given part of virtual space

86. Output field

A specified portion of the visualization space

87. View conversion

Viewing transformation

A transformation that binds the borders and contents of a window to the borders and contents of an output field

88. Clipping

Removing output primitives or parts thereof that lie outside the specified area

89. Shielding

Suppression of output primitives or parts of them falling inside a specified region

90. Scrolling

Moves a window vertically or horizontally so that new data appears inside the output field and old data disappears

91. Vertical scrolling

Scrolling limited to up and down directions

92. Zoom

A gradual change in the scale of an image in order to create a visual sensation of movement of the entire visualized group or part of it towards or away from the observer.

Note. Scaling factors should be the same in all directions

93. Tumbling

Dynamic representation of output primitives rotating around an axis whose orientation continuously changes in space

94. Pan

Gradual transfer of the image in order to create a visual sensation of movement in the horizontal direction.

Note. Panning can be limited to the output field

95. Background image

Background image

A portion of an image, similar to a standard shape, that remains unchanged under certain sequences of operations

96. Overlay image

Foreground image

Part of the image that can change during any operation

97. Standard form

A form used as the main image.

Note. Forms include a sheet, grid or map

98. Visualization of a standard form

Visual representation of a typical form

ALPHABETICAL INDEX OF TERMS IN RUSSIAN LANGUAGE

table 2

Term number

Addressability

Vector absolute

Vector relative

Increment value

Visualizations

Visualization of a standard form

Selection

Image blanking

Vector generator

Curve generator

Character generator

Dot character generator

Linear character generator

Image generation repeated

Linear graphics

Machine graphics

Raster graphics

Drum plotter

Tablet plotter

Raster plotter

Electrostatic plotter

Vector display

Raster display

Unit raster

Wrapping an image

Image

Encoded image

Image overlay

Typical form image

Background image

Light button

"Wheel"

Visualization Team

Render Command Absolute

Render command relative

Absolute coordinate

Coordinate incremental

World coordinate

Normalized coordinate

Relative coordinate

User coordinate

Device coordinate

Soft copy

Tumbling

Cursor

invisible line

Marker

Scaling

Image flickering

Towing method

Rubber thread method

Flashing image

Window

Mirror reflection

Clipping

Plasma panel

Pan

Transfer

Light pen

Pixel

Tablet

Turn

Rendering surface

Addressable position

Output field

Wireframe representation

View transformation

Input primitive

Output primitive

Scrolling

Scrolling vertical

Virtual space

Visualization space

Space physical

Regeneration

Drawing

Segment

Aiming symbol

Trace symbol

Graphic terminal

Tracing

Zoom

Cathode ray storage tube

Plotter node writing

Light pen pointing

Lever indicator

Ball pointer

Alternative input device

Position sequence input device

Position input device

Number input device

Wheel type device

Mouse type device

Pointing device

Standard form

Regeneration frequency

Plotter step

Shielding

Detectable element

ALPHABETICAL INDEX OF TERMS IN ENGLISH

Table 3

Term number

Absolute command

Absolute coordinate

Addressable point

Background image

Character generator

Computer graphics

Detectable element

Device coordinate

Directed beam display device

Dot matrix character generator

Electrostatic plotter

Foreground image

Image regeneration

Incremental coordinate

Incremental vector

Light pen detection

Normalized device coordinate

Output primitive

Plotter step size

Raster display device

Relative command

Relative coordinate

Stroke character generator

Vector generator

Viewing transformation

Wire frame representation

World coordinate

INFORMATION DATA

1 By Decree of the USSR State Committee on Standards dated October 28, 1987 No. 4052, standard of the Council for Mutual Economic Assistance ST CMEA 5712-86 “Information processing systems. Machine graphics. Terms and Definitions" was put into effect directly as a state standard of the USSR from 07/01/88

2. INTRODUCED FOR THE FIRST TIME

3. REFERENCE REGULATIVE AND TECHNICAL DOCUMENTS

4. Reissue