What is digitizers, Computer Engineering

Assignment Help:

What is Digitizers

A common device for drawing, painting, or interactively selecting coordinate positions on an object is a digitizer. These devices can be used to input coordinating values in either a two-dimensional or a three-dimensional space. Typically, a digitizer is used to scan over a drawing or object and to input a set of discrete coordinate positions, which can be joined with straight-line segments to approximate the curve or surface shapes. One type of digitizers is the graphics tablet (also referred to as a data tablet) which is used to input two-dimensional coordinates by activating a hand cursor or stylus at selected positions on a flat surface. A hand cursor contains cross hairs for sighting positions, while a stylus is a pencil-shaped device that is pointed a positions on the tablet. Tablet size varies from 12 by 12 inches for desktop models to 44 by 60 inches or larger for floor models. Graphics table provide a highly accurate method for selecting coordinate positions, with an accuracy that varies from about 0.2 mm on desktop models to about 0.5 mm or less on longer models. Many graphics tablet are constructed with a rectangular grid of wires embedded in the tablet surface. Electromagnetic pulses are generated in sequence along the wires, and an electric signal is induced in a wire coil in an activated stylus or hand cursor to record a tablet position. Depending on the technology, either signal strength, coded pulses, or phase shifts can be used to determine the position on the tablet.

 


Related Discussions:- What is digitizers

What are the uses of ramps, What are the uses of Ramps? Ramps: I...

What are the uses of Ramps? Ramps: It is a network planning method which makes the most efficient use of manpower, cash resources and materials among various projects go

Wireless Networking, Suppose you work in a network security company, and yo...

Suppose you work in a network security company, and you need to prepare a survey report of a particular security issue of wireless networking. To start with, select an area of wire

two arguments are passed, The velocity of sound in air is 49.02 feet p...

The velocity of sound in air is 49.02 feet per second where is the air temperature in degrees Rankine.  Write a function to execute this.  If just 1 argument is passed to the f

Give introduction to object oriented analysis and design, Introduction to o...

Introduction to object oriented Analysis & design: tools In case of OOAD, Unified Modelling Language (UML) is a well accepted language. It is used for constructing, visualizin

Constant voltage sources, Constant Voltage Sources An ideal constant v...

Constant Voltage Sources An ideal constant voltage source maintains a given voltage across its load regardless of the current drawn from it .Most 'every-day' power supplies a

What is a multiplexer tree, What is a Multiplexer Tree? Ans Multip...

What is a Multiplexer Tree? Ans Multiplexer Tree: The largest available MUX IC is 16 to 1. Meeting the larger input requires there must be a provision to expand this. It

Hypertext vs hypermedia, Hypertext vs Hypermedia     Hypertext is basic...

Hypertext vs Hypermedia     Hypertext is basically the similar as regular text - it can be stored, read, searched, or edited - with a significant exception: hypertext having co

What is a javabean, JavaBeans are reusable software components written in t...

JavaBeans are reusable software components written in the Java programming language, designed to be influenced visually by a software development environment, like JBuilder or Visu

What are the types of convergences, What are the types of convergences? ...

What are the types of convergences? Three different types of convergences are: a. The convergence of wireless and e-commerce technology b. The Convergence of E-Commerce a

Explain about server synchronization, Q. Explain about Server synchronizati...

Q. Explain about Server synchronization? Server synchronization: It updates atom by server process of requesting process. In this method an atom acts as a unique update server.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd