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

i open an ms access database, How can I open an MS Access database that ha...

How can I open an MS Access database that has been converted to a current version? Ans) MS Access is not backwards compatible. A workaround to share tables among different versi

Determine about the memory stack, Memory Stack Stack could exist as a s...

Memory Stack Stack could exist as a stand-alone unit or could be executed in a random-access memory attached to the CPU. The implementation of a stack in a CPU is done by assig

What is pli, What is PLI Programming  Language  Interface  (PLI)  of  V...

What is PLI Programming  Language  Interface  (PLI)  of  Verilog  HDL  is  a  mechanism  to  interface  Verilog programs  with  programs  written  in  C  language.  It also pro

Which data structures used in language processing, Which structure can be u...

Which structure can be used as a criterion for classification of data structures used in language processing. And. Nature of a data structure, purpose of a data structure and l

List out the features of computer memory, List Out the Features of Computer...

List Out the Features of Computer Memory? Features of each type of memory   Type Volatile? Write able? Erase Size

Write down the basic performance equation, Write down the basic performance...

Write down the basic performance equation? T=N*S/R T=processor time N=no.of instructions S=no of steps R=clock rate

What is dvd and dvd-rom, DVD is a new technology very same to compact discs...

DVD is a new technology very same to compact discs. A DVD looks just like an ordinary compact disc, though a DVD can hold up to 25 times as much as a CD!! That's 18 gigabytes!! Thi

Ip fragmentation of user datagarm, IP specified that datagram can arrive in...

IP specified that datagram can arrive in a different order than they were sent. If a fragment from one datagram arrives at a destination before all the segments from a previous dat

Performance analysis, In order to calculate the performance of the program,...

In order to calculate the performance of the program, the normal form of analysis of the program is to simply measure the total amount of CPU time needed to implement the various p

Interactive computer graphics.., graphical adapters and input methods in co...

graphical adapters and input methods in computer graphics

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