Line drawing - points and lines, Computer Graphics

Assignment Help:

Line Drawing - Points and lines

Line drawing is accomplished through computing the intermediate point coordinates along the line path between two given end points. Since, screen pixels are referred along with integer values, plotted positions may only around the calculated coordinates that is pixels that are intensified are those such lie very near to the line path if not precisely on the line path that is in the case of absolutely horizontal, vertical or 45° lines merely.

562_Line Drawing - Points and lines.png

 

Figure: Stair case effect

Standard algorithms are accessible to find out which pixels provide the best approximation to the desired line. Screen resolution conversely, is a large factor towards enhancing the approximation. In a high resolution system such adjacent pixels are very closely spaced which the approximated line-pixels lay extremely close to the real line path and thus, the plotted lines appear to be vary smoother; mostly like straight lines drawn upon paper. In a low resolution system, the similar approximation technique causes lines to be shown with a "stair-step appearance" that is not smooth as demonstrated in following figure; the effect is termed as the stair case effect.


Related Discussions:- Line drawing - points and lines

Distinguish between mono and stereo sound, Problem: (a) Distinguish be...

Problem: (a) Distinguish between mono and stereo sound? (b) Calculate the size of a 5 minutes mono sound file of CD quality and with a 16 -bit rate. (c) With reference

How many times will vertex appear in the intersection points, 1. For the po...

1. For the polygon shown in Figure on the next page, how many times will the vertex V 1 appear in the set of intersection points for the scan line passing through that point?  How

What is scaling and shearing, What is scaling and shearing? The scaling...

What is scaling and shearing? The scaling transformations alters the shape of an object and can be carried out  by multiplying every vertex (x,y) by scaling factor Sx, Sy where

File format-introduction to computer graphics, File format We want an i...

File format We want an image of a Fly. The wings are incompletely transparent and to present that in our presentation what be problematic if suitable file format is not there.

Introduction, how can we write the introduction matter for graphicaluser in...

how can we write the introduction matter for graphicaluser interface

What is homogeneous coordinate, What is homogeneous coordinate? Discuss the...

What is homogeneous coordinate? Discuss the composite transformation matrix for two successive translations and scaling. In design and picture formation process, many times

Bezier surfaces - modeling and rendering, Bezier Surfaces - Modeling and Re...

Bezier Surfaces - Modeling and Rendering Two sets of Bezier curve can be utilized to design an object surface by identifying by an input mesh of control points. The Bézier su

Student, hi I need help with photoshop

hi I need help with photoshop

Write short notes on active and passive transformations, Write short notes ...

Write short notes on active and passive transformations?  In the active transformation the points x and x represent different coordinates of the similar coordinate system. Here

Transformation, Explain window to view port transformation

Explain window to view port transformation

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