Use the outline method to plot font boundaries, Computer Graphics

Assignment Help:

1. Use the outline method to plot the following font boundaries (style should remain the same). Implement your method in C language. 

 

124_Use the outline method to plot font boundaries.png

ANswer: Here letter G is produced using linear segments for outline method.  You may also use Bezier curves of higher degree to approximate the outline of the character. The outline will be drawn using the code given here. For filling the interior, you need to employ one of the fill area methods.   Vertices of the line segments are given as follows. 

GLint vt[][2]={{315,245}, { 315,195}, {316,190},{333,183},

{ 251,183}, {263,186}, { 270, 190},{272,195}, {272,225}, {

253, 238}, {242,236}, {235,229}, {231,219}, {227,198}, {

227,169}, { 228,152}, {233,133}, {242,124}, {248,120}, {

253,120}, {269,119}, { 273,121}, { 280,126}, {292,134}, {

299,141}, {305,149}, {312,162}, {312,111}, {307,110}, {307,

120}, {304, 130}, {301, 133}, {298, 131}, { 289, 125},

{279, 120}, {266, 113}, {251, 109}, {239, 110},{229,110},

{219,114}, {208,120}, {196,129}, {190,138}, {185,148},

{181, 158}, {180,172},{180,184}, {180,196}, {184, 203},

{189, 214}, {198, 226}, {211, 235}, {220,242}, {230,245},

{245,247}, {260, 247}, {271, 241}, {284, 236}, {293, 231},

{299, 231}, {306, 235}, {315,245}}; 

The code uses simple line loop to produce the character.   

void lineG(void)

{glBegin(GL_LINE_LOOP);

for(int i = 0;i<62;i++) {

 vt[i][1]=480-vt[i][1];

 glVertex2iv(vt[i]);}

 glEnd();

}  

Call the function lineG in your display function. Similar is the code for letter ' t'.


Related Discussions:- Use the outline method to plot font boundaries

Dda, what is dda

what is dda

Area subdivision method-obscures the continuing two surface, Assume here ar...

Assume here are three polygon surfaces P,Q, R along with vertices specified by as: P: P1(1,1,1), P2(4,5,2), P3(5,2,5) And as Q: Q1(2,2,0.5), Q2(3,3,1.75), Q3(6,1,0.5) R: R1(0.5,

Summary of graphic primitives, Summary of Graphic Primitives In this a...

Summary of Graphic Primitives In this all section, we have illustrated the basic graphic primitives that are line, point and circle; we have also illustrated both practical an

Sutherland hodgeman polygon clipping algorithm, What is clipping? Explain S...

What is clipping? Explain Sutherland Hodgeman polygon clipping algorithm with example.  OR Write the algorithm for Sutherland Hodgeman Polygon. Beginning with the initial set of p

Define octrees, Define Octrees?  Hierarchical tree structures called oc...

Define Octrees?  Hierarchical tree structures called octrees, are used to show solid objects in some graphics systems. Medical imaging and other applications that needs display

Area-subdivision method-computer graphics, Normal 0 false fal...

Normal 0 false false false EN-US X-NONE X-NONE

Painting and drawing, Painting and Drawing While we talk about graphic...

Painting and Drawing While we talk about graphics, we mean pictures can be either photographs or illustrations. If you want to acquire graphics into a Web page or multimedia r

Construction of an isometric projection - transformation, Construction of a...

Construction of an Isometric Projection - Transformation In this projection, the direction of projection i.e. d = (d 1 ,d 2 ,d 3 ) makes an identical angles with all the 3-pr

Color histogram, A color histogram is a representation of the distribution ...

A color histogram is a representation of the distribution of colors in an image. For digital images, a color histogram represents the number of pixels that have colors in each of a

What does refreshing of the screen mean, What does refreshing of the screen...

What does refreshing of the screen mean? Some method is required for maintaining the picture on the screen. Refreshing of screen is completed by keeping the phosphorus glowing

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