Главная Случайная страница


Полезное:

Как сделать разговор полезным и приятным Как сделать объемную звезду своими руками Как сделать то, что делать не хочется? Как сделать погремушку Как сделать неотразимый комплимент Как сделать так чтобы женщины сами знакомились с вами Как сделать идею коммерческой Как сделать хорошую растяжку ног? Как сделать наш разум здоровым? Как сделать, чтобы люди обманывали меньше Вопрос 4. Как сделать так, чтобы вас уважали и ценили? Как сделать лучше себе и другим людям Как сделать свидание интересным?

Категории:

АрхитектураАстрономияБиологияГеографияГеологияИнформатикаИскусствоИсторияКулинарияКультураМаркетингМатематикаМедицинаМенеджментОхрана трудаПравоПроизводствоПсихологияРелигияСоциологияСпортТехникаФизикаФилософияХимияЭкологияЭкономикаЭлектроника






Types of graphics software





Computer graphics are pictures created, changed or processed by computers. There are two categories.

1. Bitmapped graphicsrepresent images as bitmaps;they are stored as pixels and can become a bit distorted when they are manipulated. The density of dots, known as the resolution and expressed in dots per inch, determines how sharp the image is.

2. Vector graphicsrepresent images as mathematical formulae, so they can be changed or scaled without losing quality. They are ideal for high-resolution output.

There are different types of graphics software.

Image manipulation programslet you edit yourfavourite images. For example, you can scan a picture into your PC or transfer a photo from your camera and then add different effects, or filters.

■ Painting and drawing programs,also called illustration packages,offer facilities for freehand drawing, with a wide choice of pens and brushes, colours and patterns. One example is Windows Paint.

■ Business graphics programs,also called presentation software,let you create pie charts, bar charts and line graphs of all kinds for slide shows and reports. You can import data from a database or spreadsheet to generate the graphs.

Computer-aided design (CAD)is used by engineers and architects to design everything from cars and planes to buildings and furniture. First they make a wireframe,a drawing with edges and contour lines. Then if they want to colour the objects and add texture, they create a surface for the object; this is called “filling the surface”. Finally, the design is renderedto make the object look realistic. Renderingis a process that adds realism to graphics by using shading, light sources and reflections.

Desktop publishing (DTP)is based around a page layout program, which lets you import text from a word processor, clip-art(ready-made pictures) from graphics packages, and images from scanners or cameras, and arrange them all on a page. It is used to design and publish books, newspapers, posters, advertisements, etc.

Digital art,or computer art,is done with applets that use mathematical formulae to create beautiful bright shapes called fractals. A fractalis a geometrical figure with special properties, e.g. the Koch snowflake or the Mandelbrot set. Fractals can also be used to model real objects like clouds, coastlines or landscapes.

Computer animationuses graphics programs (e.g. digital cartooning systems) to create or edit moving pictures. Each image in a sequence of images is called a “frame”.

Geographic information systems (GIS)allow cartographers to create detailed maps.






Date: 2015-10-19; view: 248; Нарушение авторских прав

mydocx.ru - 2015-2019 year. (0.013 sec.) Все материалы представленные на сайте исключительно с целью ознакомления читателями и не преследуют коммерческих целей или нарушение авторских прав - Пожаловаться на публикацию