Geographic primitives in the graphics editor are. Graphic primitives in the graphic editor are. Line as a primitive
Various graphic vector editors have their own distinctive features, may contain different functionality and a peculiar interface. But, despite the differences, any vector editor is based on a standard set of graphic primitives.
Graphics Primitives these are predefined elements that can be placed in a drawing with a single command. Each graphic primitive is formed based on the geometric description of the object. Primitives can be classified as monosyllabic and compound, flat and voluminous.
Basic graphic primitives:
Dot is one of the simplest primitives, which is characterized by three spatial X,Y coordinates and Z.
Line is the part of a straight line defined by two extreme points with zero width (1 pixel). The line is the most fundamental primitive for any drawing.
polyline - broken line
Rectangle- a figure for which the coordinates of the initial and opposite corner points are indicated.
Arc - the part of a circle that is geometrically defined by a center, a radius, and two central angles.
Circle (ellipse) - part of the plane bounded by a circle.
Figure - this is a part of the plane bounded by a quadrilateral (triangle).
Each primitive is formed by its own command, most often they coincide in name with the primitive. For some primitives, the user is offered several ways to build the same primitive from different input data, for example, a circle can be built by center and radius, center and diameter, three points on the plane, etc. Each primitive has a number of properties (for example, belonging to a layer, color, visibility, line type, etc.).
Primitives have the following properties:
line type;
Linetype scale;
Layer belonging;
level and height.
You can perform the following operations on primitives:
Create,
Delete,
set properties,
receive copies,
Move,
Turn,
mirror image,
To scale,
hatch,
Paint over etc.
Basics of working in design editors
In design editors, the user receives two types of information: symbolic messages of the system and a synthesized graphic image. Symbolic messages include system requests, pointers to system modes (states), displays of the current cursor coordinates.
Below are the basic information you need to know when working in drawing editors
Operating modes
Cursor is a multifunctional tool used both for drawing (similar to a pencil, compass and ruler), and for controlling the system by selecting commands, specifying drawing elements subject to a particular operation, etc.
Drawing modes implemented in editors can greatly facilitate and speed up the creation and editing of images, while ensuring high accuracy of constructions.
Mode Grid most effective for obtaining images with a regular structure. Such images can be, for example, drawings of simple shafts. A square or rectangular grid is obtained on the screen after entering the appropriate command and grid step values. Any elements that are built on this grid will automatically "capture" the nearest nodes.
Mode Ortho provides the construction of horizontal and vertical segments. If the snap grid is rotated, the direction of the Ortho mode is changed by the angle of rotation.
Mode object snap provides maximum drawing accuracy and allows you to "snap" to the characteristic points of objects existing in the drawing. The object snap mechanism is activated whenever the corresponding point is requested.
Mode auxiliary constructions simulates constructions in "thin lines" of parallel and perpendicular lines, various circles and arcs in order to obtain the desired points of intersection and tangency geometric elements. In the future, according to the obtained segments, arcs and points, a “stroke” is made, and the “thin lines” are erased when the drawing is completed. Auxiliary elements are not displayed on a hard copy.
Usage window allows you to see the image at the desired scale. The operation, in which the entire drawing or some part of it can be seen through the window, is called zooming. In this case, the distances between points in arbitrary units of measurement always remain constant. The user, as a rule, is provided with several options for specifying the window, for example: by specifying two points on the diagonal of the window (in this case, a “rubber” rectangle of the new window being formed will be visible on the screen), and the center point of the new window will be the center of the rectangle; indicating the center point and scale of the window. In addition, the user is given the opportunity to view any part of the drawing without changing the scale, when the window, as it were, moves across the drawing field. This operation is called panning.
Usage species- splitting the screen field and, accordingly, the drawing field into different, independent rectangular areas in the drawing is not mandatory. At the drawing editing stages, views can be renamed, moved, rotated, scaled, copied (including from other drawings), deleted.
Usage layers allows you to arrange individual parts of the image in different layers. The drawing is mentally divided into a number of planes (layers). Each of these planes can be assigned different graphical elements. The principle of "stratification" is easy to understand if you imagine several drawings, each of which is made on a separate transparent plate. You can view either each plate individually, or, by superimposing several plates on top of each other, to obtain a joint image.
2) Edit commands can be divided into three groups:
Object transformations;
Deleting selected objects;
Correction of parameters and properties of objects.
When using editing commands, the system prompts you to select one or more objects for processing. This set of objects is called a selection set. You can interactively add objects to or remove objects from the kit. The system displays the selected objects on the screen. The simplest and most effective is the selection (selection) with the mouse. Object selection carried out in the following most common ways:
Alternate pointing by the cursor to the graphic primitives to be edited;
Framing objects with a frame, which is determined by specifying its diagonal vertices, while the selected objects will be those that are completely inside the frame;
Framing objects with a secant frame, in which not only objects that are completely inside the frame are selected, but also those that are intersected by it.
Object Transformation Commands include in their composition the group: affine transformations, non-discontinuous deformations and changes in the shape of fragments).
Commands for deleting objects, usually combined in one section of the menu. The following objects are removed:
Selected objects;
Auxiliary curves and points;
Part of the curve;
Part of a curve between two points;
Region;
Chamfer / rounding;
Commands for Correcting Parameters and Properties of Objects. Editors provide the user with extensive control over object styles.
Dimensioning
Dimensions express the basic geometric characteristics of objects.
There are four main types of sizes: linear, angular, diametrical, radial.
Linear dimensions are divided into horizontal, vertical, parallel, rotated. There are methods of applying dimensions from one or more common bases.
Graphic editors provide dimensioning tools that greatly simplify this time-consuming process. The most common is the semi-automatic dimensioning mode. In this mode, the user needs to specify the desired element and set the dimension number to the desired point. Based on this data, the system automatically generates extension and dimension lines and calculates the dimension number. The type of dimensions and how they are entered into the database is determined by a set of dimension variables. Dimensional variables can be manipulated. Most systems provide the ability to create associative dimensions that are automatically recalculated and redrawn when editing the corresponding image fragments.
Graphic primitives are the minimal graphical objects that make up a vector drawing - like the bricks that make up a building.
To graphic primitives in OpenOffice.org Draw relate:
- lines and arrows;
- rectangles;
- circles, ellipses, arcs, segments and sectors;
- curves;
- connecting lines;
- three-dimensional objects (cube, ball, cylinder, etc.);
- text.
Graphic primitives can compose more complex objects thanks to the combination function and logical operations on forms; this will be discussed later.
Creation of graphic primitives
To create a primitive, make a long click on the button of the corresponding group of primitives on the toolbar; then, after selecting the desired primitive from the drop-down list of icons, release the button. As a result, the primitive creation mode is activated, in which you need to specify the location of the key points and distances of the primitive using the mouse. Different primitives have different number of parameters; for example, a simple line has only two parameters, while a curve has an unlimited number. Below we will talk about the features of creating various primitives.
Lines and arrows
To create a line, specify the start and end point of the line on the drawing sheet: the start point of the line is set with the left mouse button; then, without releasing the button, move the cursor to the end point of the line and release the button. The line has been created.
trunk line
This object is created in the same way as a normal line. A feature of a connecting line is the ability to snap to objects, so when creating a connecting line, instead of specifying the start or end point of the line, you can specify some object and the program itself will select the best point for connecting the line to it.
Rectangles
Here you need to specify the position of two opposite vertices of the rectangle - the first one is indicated by pressing the left mouse button; then, without releasing it, move the cursor to the second point and fix the figure by releasing the button.
Circles, Ellipses, Arcs, Segments and Sectors
To create a circle and an ellipse, it is enough to specify the overall dimensions of the primitive with two points by pressing, dragging and releasing the left mouse button. In the case of an arc, segment or sector, you need to specify two more points on the primitive outline by simply pressing and releasing the left button.
3D objects
Any three-dimensional object is created by specifying its maximum size in one of two dimensions. A three-dimensional object is created in fixed proportions, which change after its creation.
Text
The text is created by simply clicking the left mouse button in the right place on the sheet; a typing frame appears with a text cursor.
When creating text that fits within a frame, first set the frame with two points by right-click-drag-and-drop, then type the text. The font size will be automatically adjusted so that the text occupies the entire area of the specified frame.
A legend is a frame with an arrow, which is usually used to explain some part of a drawing. It is created by pressing-stretching-release with the right mouse button; you can then insert text inside the legend box by double-clicking the box. As you enter text, the legend box automatically resizes.
Bezier curves, drawn curves, polygons
Based on trigonometric equations, the French mathematician and engineer Pierre Bezier created a special way to easily and at the same time flexible description of complex contours for metal-cutting machines used in the automotive industry; this method was called Bezier curves and, due to its simplicity and flexibility, subsequently became one of the most important methods of computer graphics.
Bezier curves built on several points and guide lines. The points on which the curve is built are called reference points; each of them is characterized by two segments located on the tangent to the Bezier curve at the reference point (they are called guides). The length of each defines the steepness of the next or previous curve segment, and the tangent angle defines the direction to either side of the reference point.
When creating a curve in OpenOffice.org Draw its reference points are sequentially indicated with the help of the left mouse button. If you do not release the button after pressing the button to create a reference point, you can set the angle and length of the guides; if the button is not held, then the length of the guides will be zero, and such a point will be a corner one. The guide of the first anchor point must be specified, otherwise the operation is cancelled. Double-clicking with the left mouse button ends the curve drawing.
Note that when creating a curve, the length of the guides in both directions is the same. You can change the lengths of the guides individually after creating the curve using the point editing tool.
Key holding Shift in the process of creating a curve allows you to specify angles that are multiples of 45 degrees; you can use the key to close the curve alt.
hand drawn line is also a Bezier curve, only the number of anchor points, values and angles of the guides are automatically determined by the program. To create a drawn line, you need to press and hold the left mouse button and draw the desired curve by hand.
Creation polygons consists in specifying all the vertices of the polygon. The second vertex must be indicated by releasing the pressed left mouse button, otherwise the operation will be canceled; the remaining vertices are indicated by a normal click, and the last vertex by a double click. Just like when creating a curve, you can use the keys alt and Shift to close the polygon and draw with angles that are multiples of 45 degrees, respectively.
Option 2
One of the main functions of the graphic editor is:
image input;
image code storage;
creating images;
viewing and displaying the contents of the video memory.
The elementary object used in the raster graphics editor is:
screen point (pixel);
rectangle;
Color palette;
Image deformation when resizing a picture is one of the disadvantages:
vector graphics;
raster graphics.
Primitives in the graphics editor are called:
the simplest figures drawn with the help of special tools of the graphic editor;
operations performed on files containing images created in a graphics editor;
graphics editor environment;
mode of operation of the graphic editor.
Toolbar buttons, palette, workspace, menus form:
a complete set of graphic primitives of the graphic editor;
graphics editor environment;
list of operating modes of the graphic editor;
a set of commands that can be used when working with a graphical editor.
The smallest screen surface element for which an address, color and intensity can be specified is:
phosphor grain;
pixel
The grid that the pixels form on the screen is called:
video memory;
video adapter;
raster;
display processor.
fractal;
raster;
vector;
rectilinear.
A pixel on a monitor screen is:
the minimum area of the image, which can be independently assigned a color;
binary code of graphic information;
electron beam;
a set of 16 phosphor grains.
The video adapter is:
a device that controls the operation of the monitor;
a program that allocates video memory resources;
an electronic volatile device for storing information about the graphic image;
monitor processor.
Video memory is:
an electronic device for storing a binary code of the image displayed on the screen;
a program that distributes PC resources during image processing;
a device that controls the operation of the monitor;
part of the working memory.
To store a 256-color image, one pixel is allocated for encoding:
1 byte.
Option 3
Graphics with representation of the image in the form of sets of points is called:
a) fractal;
b) raster;
c) point;
d) vector;
e) rectilinear.
The video adapter is:
a) a program that allocates video memory resources;
b) a device that controls the operation of a graphic display;
c) an electronic, volatile device for storing information about a graphic image;
d) display processor;
e) component processor.
The grid of horizontal and vertical columns that pixels form on the screen is called:
a) a vector;
b) video adapter;
c) video memory;
d) raster;
e) display processor.
Applying vector graphics versus raster graphics:
a) increases the amount of memory required to store the image;
b) does not affect the amount of memory required to store the image, and the complexity of image editing;
c) does not change how the image is encoded;
d) complicates the editing of the drawing;
e) reduces the amount of memory required to store the image and makes it easier to edit the latter.
To display graphic information, use:
a) display screen;
b) keyboard;
d) scanner;
e) joystick.
A set of icons depicting drawing tools, palette, workspace, menus form:
a) graphics editor environment;
b) a complete set of graphic primitives of the editor;
c) list of operating modes of the graphic editor;
d) a set of graphics editor commands;
e) working field of the graphic editor.
In the process of converting a bitmap graphic file, the number of colors decreased from 65536 to 256. The file size decreased by:
a) 8 times;
e) 32 times.
The RBG color coding method is typically used for:
a) encoding images displayed on a color display screen;
b) organization of work on printing devices;
c) scanning images;
d) storing information in video memory;
e) recording an image to an external device.
The CMYK color coding method is usually used for:
a) coding of images displayed on the color display screen;
b) scanning images;
c) storing information in video memory;
d) recording an image to an external device;
e)organization of work on printing devices.
Pixel is:
a) binary code of graphic information
b) the binary code of one character in the computer's memory;
c) the minimum area of the image on the display screen, which can be independently assigned a color;
d) code of one natural language alphabet;
e) one character in computer memory.
A raster graphic file contains a black and white image with 16 shades of gray and a size of 10 x 10 pixels. What is the information volume of this file:
400 bytes;
For binary encoding of a color drawing (256 colors) with a size of 10 x 10 dots, you need:
100 bytes;
word processorMicrosoftWord
Test on the topic "Mastering the word processor environment"
Option 1
1. Text editor - a program designed for
creating, editing and formatting text information;
work with images in the process of creating game programs;
management of PC resources when creating documents;
automatic translation from symbolic languages to machine codes;
2. In the series "symbol" - ... - "line" - "text fragment" is missing:
"page";
"word";
3. The main functions of the text editor include:
copying, moving, destroying and sorting text fragments;
creation, editing, saving and printing of texts;
strict adherence to spelling;
automatic processing of information presented in text files.
4. The character entered from the keyboard when typing is displayed on the display screen in the position determined by:
the position of the previous letter typed.
given coordinates;
cursor position;
space;
colon.
8. Using a computer text information can:
store, receive and process:
only store;
receive only;
only process.
9. Text editing is:
the process of making changes to the existing text;
a procedure for saving text to disk as a text file;
the process of transmitting textual information over a computer network;
the procedure for reading previously created text from an external storage device.
10. Which operation does not apply to text editing:
text printing;
deleting an incorrectly typed character in the text;
inserting a missing character;
replacement of an incorrectly typed character;
11. The text is typed in a text editor:
IT SIMPLY CONTAINS PROCEDURES FOR PROCESSING THE DATE AND TIME OF THE DAY, ANALYSIS OF THE STATE OF MAGNETIC DISK, ROBOT TOOLS WITH DIRECTORIES AND SEPARATE FILES.
The "Find and Replace All" command to fix all errors might look like:
find P replace with RA;
find RO replace with RA;
find ROB replace with RAB;
find BROB replace with BRAB;
find BROBO replace with BRABO;
12. The procedure for automatic text formatting provides:
write text to the buffer;
deleting text;
canceling the previous operation performed on the text;
automatic arrangement of text according to certain rules.
13. In a text editor, when setting page parameters, the following are set:
Typeface, size, style;
Indent, spacing;
Fields, orientation;
Style, pattern.
14. Copying a text fragment in a text editor primarily involves:
specifying the position from which the object should be copied;
selection of the copied fragment;
selection of the corresponding menu item;
opening a new text window.
15. The text editor menu is:
part of its interface, providing a transition to performing various operations on the text;
a subroutine that provides PC resource management when creating a document;
a kind of "window" through which the test is viewed on the screen;
information about the current state of the text editor.
16. Searching for a word in a text according to a given pattern is a process:
information processing;
information storage;
transfer of information;
destruction of information.
17. The text typed in the test editor is stored on an external storage device:
as a file;
encoding tables;
directory;
directories.
18. Hypertext is
structured text, which can be navigated by selected labels;
ordinary, but very large text;
text whose letters are typed in a very large font;
distributed set of databases containing texts.
19. When opening a document from disk, the user must specify:
file sizes;
file type;
File name;
file creation date.
Test on the topic "Mastering the word processor environment"
Option 2
MICROSOFTWORD is...
A) a word processor
B) Text editor
C) A program designed to edit a text document.
What alignment method is not in the word processorMSWORD
A) left alignment
B) right-aligned
B) height alignment
The minimum object used in a text editor is:
A) word
B) pixel
B) paragraph
D) symbol
What symbols are used to print Roman numerals?
A) uppercase latin letters
B) capital Russian letters
B) numbers
The main elements of the word processor window are:
A) title bar, menu bar, toolbar, format bar, workspace, scrollbar
B) title bar, working field
C) toolbar, palette, workspace
The character entered from the keyboard when typing is displayed on the display screen in a position determined by:
a) input coordinates;
b) address;
c) the position of the previous typed letter;
d) cursor position;
e) arbitrarily.
When typing in text editors, one word is separated from another:
a) a colon
b) a space;
c) a point;
d) a comma;
e) an apostrophe.
A text editor is typically used to:
a) creating drawings;
By informatics designed...
Guidelines for the organization of extracurricular activities in educational institutions of the Tomsk region Dozmorova E. V., Ph.D., Vice-Rector for Scientific Research
GuidelinesFor the weather, test-system "Nitrate- test”, tellurium, ... laboratory experiments on standard sections school course physics is... Informatics. Therefore, the author's well informatics main general education includes the following meaningful lines ...
Option 1
1. One of the main functions of the graphic editor is:
1) image scaling;
2) storage of the image code;
3) creating images;
4) viewing and displaying the contents of the video memory.
2. An elementary object used in a raster graphics editor,
is:
1) dot (pixel);
2) object (rectangle, circle, etc.);
3) color palette;
4) familiarity (symbol
3. Grid of horizontal and vertical columns, which is formed on the screen
pixels is called:
1) video memory;
2) video adapter;
3) raster;
4) display processor;
4. Graphics with the representation of the image as a set of objects
called:
1) fractal;
2) raster;
3) vector;
4) rectilinear.
5. A pixel on a display screen is:
1) the minimum area of the image, which can be independently
set color;
2) binary code of graphic information;
3) electron beam;
4) a set of 16 phosphor grains.
6. Video controller is:
1) display processor;
2) a program that allocates video memory resources;
3) an electronic volatile device for storing information about
graphic image;
4) a device that controls the operation of the graphic display.
7. The color of the dot on the display screen with a 16-color palette is formed from the signals:
1) red, green and blue;
2) red, green, blue and brightness;
3) yellow, green, blue and red;
4) yellow, blue, red and brightness.
8. Which way of presenting graphic information is more economical in terms of
memory usage:
1) raster;
2) vector.
Test on the topic "Coding and processing of graphic information"
Option 2
1. Toolbar buttons, palette, workspace, menus form:
1) a complete set of graphic primitives of the graphic editor;
2) the environment of the graphic editor;
3) list of operating modes of the graphic editor;
4) a set of commands that can be used when working with a graphic
editor.
2. The smallest element of the screen surface for which
address, color and intensity, is:
1) symbol;
2) phosphor grain;
3) pixel;
4) raster.
3. Deformation of the image when changing the size of the picture is one of the disadvantages:
1) vector graphics;
2) raster graphics.
4. Video memory is:
1) an electronic device for storing a binary image code,
displayed on the screen;
2) a program that distributes PC resources during image processing;
3) a device that controls the operation of the graphic display;
4) part of the random access memory.
5. Graphics with the representation of the image in the form of sets of points is called:
1) rectilinear;
2) fractal;
3) vector;
4) raster.
6. What devices are included with the graphics adapter?
1) display processor and video memory;
2) display, display processor and video memory;
3) display processor, RAM, backbone;
4) backbone, display processor and video memory.
7. Primitives in the graphic editor are called:
1) the environment of the graphic editor;
2) the simplest figures drawn with special tools
graphic editor;
3) operations performed on files containing images created
in a graphic editor;
4) modes of operation of the graphic editor.
8. What is the extension of the Paint graphics editor files?
1) .exe
2) doc
3) bmp;
4) com.
Option 1
Option 2
1
in
b
2
a
in
3
in
b
4
in
a
5
a
G
6
G
a
2. Operating systems are software products included in _____________
3. Computer maintenance programs are called _____________
4. Application programs are programs for _________________
1. The operating system is ___________________
2. Computer maintenance programs are called ____________________
3. An archiver program is a program that _______________
4. Application software includes ________________________
a) modem b) fax c) scanner d) printer
10. File is:
A) set of indexed variables
B) a set of facts and rules
C) a program or data that has a name and is stored in long-term memory
D) a program for storing data on a hard disk
11. The text editor is software included in:
A) system software
B) programming systems
B) application software
D) operating system
12. Operating system is:
A) a set of basic computer devices
B) a set of programs that ensures the joint operation of all computer devices and user access to them
C) a set of programs used for operations with documents
D) a program for the destruction of computer viruses
13. Computer maintenance programs are called:
A) loaders b) drivers c) translators
D) compilers
14. An archiver program is called:
A) file backup software
B) a program for compressing files
B) an interpreter
D) database management system
15. Computer viruses:
A) occur due to malfunctions in computer hardware
B) are written by people specifically to harm PC users
C) are generated by the work of incorrectly written programs
D) are the result of errors in the operating system.
16. Match:
File type Extension
A) sound 1) .txt, .doc
B) text 2) .bmp, .jpg, .jpeg
B) graphic 3) .avi
D) video 4) .mp3, .mid
17. List the elements of the program window:
A) workspace b) taskbar c) shortcuts
D) Scroll bars e) Close button f) Start button
Test work on the topic "PC hardware and software":
indicate the true statement (mark with a dot) the algorithm is always a certain sequence of calculationsthe algorithm may be a certain sequence of calculations, or it may be a sequence of actions of a non-mathematical nature
an algorithm is always a sequence of non-mathematical actions
Write in a column the sequence of your actions when sewing on a torn button
11. when fully formatting a floppy disk ...1) all data is erased
2) produced full check disk
3) the disk directory is being cleaned
4) the disk becomes system
12. In a multi-level hierarchical file system...
1) Files are stored in a system that is a system of nested folders
2) Files are stored in a system that is a linear sequence
13. File path:
1) it is a named area on the disk;
2) it is a sequence of directory names separated by "\";
3) this is a list of files collected in one directory;
4) this is a list of directory names collected in the root directory.
14. In the process of archiving files ...
1. Compressed without loss of information
2. Move to free sectors
3. Copied to another folder
4. Removed from the directory
15. In the process of disk defragmentation, each file is written:
1) In odd sectors
2) In arbitrary clusters
3) Mandatory in consecutive sectors
4) In even sectors
16. Device drivers:
1) is the hardware connected to the computer to perform input/output operations;
2) it software, designed to connect input / output devices;
3) it is a program that translates high-level languages into machine code;
4) this is a program that allows you to increase the speed of the user by
17. Application programs
1) Programs designed to solve specific problems
2) Operate hardware and provide services to us and our applied complexes
3) Games, drivers and translators
4) Programs that are stored on floppy disks
18. The operating system performs the following functions:
1) ensuring the organization and storage of files;
2) organizing a dialogue with the user, managing hardware and computer resources;
3) data exchange between a computer and various peripheral devices;
4) connecting input/output devices.
19. During the loading of the operating system, the following occurs:
1) Copy operating system files from floppy disk to hard disk
2) Copy operating system files from CD to hard drive
3) Sequential loading of operating system files into RAM
4) Copy content random access memory to hard drive
20. The system disk is required for:
1) Operating system downloads
2) Protect your computer from viruses
3) Creating programs using a graphical interface
4) Archive and unzip files
21. The top of the hierarchical folder system of the Windows GUI is the folder:
1. drive root directory
2. my computer
3. network environment
4. Desktop
22. The dialog box in Windows is designed to
1) dialogue between the user and the computer;
2) removal of the program;
3) displaying the program icon;
4) Display the name of the program.
23. Does not exist on Windows
1) program windows;
2) testing windows;
3) dialog boxes;
4) document windows.
24. Computer viruses are…
1) Programs that can multiply and perform harmful actions to destroy programs and data
2) Programs that can infect TV programs
3) Viruses that are dangerous to human health
Chapter 2
Graphic Information Processing Technology
31. All computer images are divided into two types:
1. raster and vector
2. black and white and color
3. complex and simple
32. A bitmap is created using…
1. dots of different colors (pixels)
2. lines
3. circles
4. rectangles
33. Vector images are formed from…
1. objects that are called graphic primitives
2. dots of different colors (pixels)
3. rows and columns
4. drawings and photographs
34. For processing digital photographs and scanned images, the best tool is ...
35. To create drawings, diagrams and drawings, the best tool is ...
1. raster graphics editor
2. vector graphics editor
3. computer drawing system
36. Graphic file formats define...
1. Method and form of storing information in a file
2. Image quality
3. Image volume
4. Image dimension
37. In a vector graphics editor, a drawn object ...
1. Continues to retain its individuality and can be scaled and moved around the drawing
2. ceases to exist as an independent element after the end of drawing and becomes only a group of pixels in the drawing.
38. The most common application for developing presentations is…
1.Microsoft powerpoint
2.Microsoft Access
3.Microsoft Excel
4. Microsoft Word
39. Presentation files can be saved in the format ...
1.ppt
2.psd
3. tiff
4.doc
them in memory. Test work on the topic "Computer graphics" 2 option 2 Multimedia is A) receiving moving images on the display; B) an application program for creating and processing drawings; C) combining high quality images with realistic sound; D) the field of computer science dealing with the problems of drawing on a computer. 3Choose the correct sequence of stages in the development of computer graphics: a) The emergence of graphic displays; b) Character graphics; c) The emergence of plotters; d) The advent of the color printer. A) a, c, d, b; B) b, c, a, d; C) b, a, c, d; D) a, b, d, c. 3. The creation of arbitrary drawings, drawings is carried out by A) scientific graphics; B) design graphics; B) business graphics; D) illustrative graphics. 4. What computer device performs the sound sampling process? a) sound card B) columns; B) headphones D) processor. 5. A raster image is ... A) a mosaic of very small elements - pixels; B) combination of primitives; B) color palette 6. Graphic screen dot can be colored in one of the following colors: red, green, brown, black. How much video memory will be allocated to encode each pixel? A) 4 bits; B) 2 bytes; C) 4 bytes; D) 2 bits; E) 3 bits. 7. GR tool is: A) Line; B) color; B) sprinkler D) drawing. 8. A graphic primitive is: A) a line; B) eraser; B) copying D) color. 9. To obtain a 4-color image for each pixel, it is necessary to allocate A) 1 byte; B) 1 bit; C) 2 bytes; D) 2 bits 10. A discrete signal is ... A) a digital signal; B) the number of measurements made by the device in 1 second; C) the value of a physical quantity continuously changing with time; D) a table with the results of measurements of a physical quantity at fixed points in time. 11. At what sampling rate does the sound reproduce more accurately? A) 44.1 kHz; B) 11 kHz; C) 22 kHz; D) 8 kHz. 12. What can be attributed to the disadvantages of raster graphics compared to vector graphics? A) Large volume of graphic files. B) Photographic quality of the image. C) The ability to view the image on the screen of the graphic display. D) Distortion when scaling. 13. What can be attributed to the disadvantages of the LCD monitor? A) light weight B) dimming when changing the viewing angle; C) the absence of e / m radiation; D) small volume. 14Green is coded 1011. How many colors are in the palette? 15Find the size of a quad audio file to be recorded if it was recorded for 4 minutes using 16-bit audio encoding and a sampling rate of 32kHz. 16To store a 64 by 64 pixel bitmap, 512 bytes of memory were allotted. What is the maximum possible number of colors in an image's palette? 17 In the process of converting a raster graphic file, the number of colors decreased from 512 to 8. How many times has the information volume of the file decreased?
