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Chapter 4 by Mind Map: Chapter 4

1. Vector-drawn images are used in the following areas:

1.1. Computer-aided design (CAD)

1.2. graphic artists designing for print media

1.3. 3-D animation programs

1.4. application requiring drawing of graphic shapes

2. How vector-drawn images work

2.1. a line that describe by the location of its two endpoints

2.2. vector drawing makes use of Cartesian coordinates

2.3. describe a point in two-or three-dimensional space as the intersection of the X, Y, and Z axes

3. 3-D drawing

3.1. 3-D animation tools

3.2. features of a 3-D application

3.2.1. Modeling

3.2.2. Extrusion

3.2.3. Lathing

3.3. Panoramas

4. Understanding natural light & color

4.1. Additive color

4.1.1. color is created by combining colored light sources in three primary colors

4.1.1.1. red, green, blue (RCB)

4.2. Subtractive color

4.2.1. color is created by combining colored media

4.2.2. such as paints or ink

4.2.3. three primary colors

4.2.3.1. cyan, magenta,yellow

4.3. Color models

4.3.1. used specify color in computer terms

4.3.1.1. RGB model

4.3.1.2. HSB & HSL models

4.3.1.3. Other model include CMYK, CIE, YIQ, YUV & YCC

5. Color palettes

5.1. allow you change color

5.2. most common palettes are 1-,4-,8-,16- and24-bits deep

6. Image file types used in mutimedia

6.1. Macintosh formats

6.1.1. most commonly used format is PICT

6.1.2. PICT is a complicated & versatile format developed by Apple

6.2. Windows formats

6.2.1. most commonly used image file format is DIB, also known as BMP

6.2.2. Bitmap formats used most often by Windows developers are:

6.2.2.1. BMP

6.2.2.2. TIFF

6.2.2.3. PCX

6.3. Cross-platform formats

6.3.1. JPEG, GIF & PNG most commonly used format on web

6.3.2. PDF manages multimedia content

6.3.3. PSD, AI, CDR, DXF proprietary formats used by applications

6.3.4. IGS/ IGES standard for transferring CAD drawings

7. Before you start to create

7.1. Plan your approach

7.2. Organize the available tools

7.3. Configure computer workspace

8. Making still images

8.1. most important element of a multimedia project

8.2. generated in two ways:

8.2.1. Bitmaps (raster)

8.2.2. Vector-drawn graphics

8.3. Bitmaps editors called painting program

8.4. Vector editor called drawing program

9. Bitmap sorces

9.1. capture a bitmap using camera

9.2. print screen

9.3. download from an image from website

10. Vector-drawn graphics

10.1. applications of vector-drawn object

10.2. how vector-drawn images work

10.3. vector-drawn images versus bitmaps

11. Rendering

11.1. use of intricate algorithms to apply user-specified effects

12. Dithering

12.1. process whereby the color value of ech pixel is changed to closet matching color value

12.2. done using mathematical algorithm