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

Plot2fnhand, Write a function "plot2fnhand" that will receive 2 function ha...

Write a function "plot2fnhand" that will receive 2 function handles as input arguments, and will show in two Figure Windows plots of these functions, with the function names in the

Explain about microcomputers, Q. Explain about Microcomputers? Microco...

Q. Explain about Microcomputers? Microcomputers: A microcomputer's CPU is a microprocessor. They are characteristically used as single usercomputer though present day microco

Show some characteristics of linux, Show some characteristics of Linux? ...

Show some characteristics of Linux? It's a Unix-like computer operating system one of the most major examples of free software and open source development: typically all underl

Determine a program that is in execution, Determine a program that is in ex...

Determine a program that is in execution is known as Program in execution is known as Process

Define device interface, Define device interface. The buffer registers ...

Define device interface. The buffer registers DATAIN and DATAOUT and the status flags SIN and SOUT are part of circuitry commonly called as a device interface.

What do you mean by memory mapped i/o, What do you mean by memory mapped I/...

What do you mean by memory mapped I/O? In Memory mapped I/O, there is no particular input or output instructions. The CPU can manipulate I/O data residing in interface register

Which one is better hardware or software firewall, Which one is better hard...

Which one is better hardware or software firewall While deciding whether to buy a hardware or software firewall, the user must consider important factors such as performance an

Interrupt and scanning method of keypad operation, INTERRUPT METHOD - USING...

INTERRUPT METHOD - USING PORTB CHANGE INTERRUPT By using 4 by 4 matrix keypad connected to PORTA and PORTB. The rows are connected to PORTA-Low (RA1-RA4) and the columns are co

Show the spawned program, Q. Show the spawned program? include "pvm3.h"...

Q. Show the spawned program? include "pvm3.h"  main() {    int ptid, msgtag;    char buf[100];    ptid = pvm_parent();    strcpy(buf, "hello, world from ");

Uneven load distribution in parallel computers, Q. Uneven Load Distribution...

Q. Uneven Load Distribution in parallel computers? In parallel computers the problem is split in sub-problems in addition is assigned for computation to several processors howe

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