Modify the dda algorithm for negative sloped lines, Computer Graphics

Assignment Help:

1. Modify the DDA algorithm for negative sloped lines; discuss both the cases i.e., slope > 1 and 0 < slope < 1.

28_Modify the DDA algorithm for negative sloped lines.png

 

Ans. For the generation of lines along with negative slopes as:

 Slope < 1: successively raise y and respectively reduces x

Slope > 1: successively raise x and respectively reduces y

Aliter: This hint will use further.

As the shown above figure say L1 and L2 are lines along with -ive slope along with a magnitude of <1 and >1 respectively. So for the generation of that line, you may take reflection of the line regarding the concerned axis and obey the general algorithm of line generation. So then you may inverse reflection the transformation and this will offer you the line generation of -ive slope.


Related Discussions:- Modify the dda algorithm for negative sloped lines

Acquire a transformation matrix for perspective projection, Acquire a trans...

Acquire a transformation matrix for perspective projection for a specified object projected onto x=3 plane as viewed by (5,0,0). Solution: Plane of projection: x = 3 as given.

Scripting systems- computer animation, Scripting Systems- Computer Animatio...

Scripting Systems- Computer Animation Scripting Systems are the earliest type of motion control systems. Scripting systems permit object specifications and animation sequenc

Describe the elements of design pattern, Question: (a) Using suitable ...

Question: (a) Using suitable examples, explain the following basic principles of design: (i) Proximity (ii) Repetition (iii) Contrast (iv) Alignment. (b) Color h

Education and training, explain in detail the application of computer graph...

explain in detail the application of computer graphics in education and training?

Briefly explain the 12 stages in image processing, QUESTION (a) In Autom...

QUESTION (a) In Automatic Contrast Adjustment briefly explain how to stretch an image to its full intensity (b) Write down a mathematical function of a Modified Automatic Con

Texturing - texture coordinate, Background Texturing is like wallpaperin...

Background Texturing is like wallpapering; you are pasting an image onto the OpenGL Quad primitive.  Recall that GL_QUAD is specified by four vertices.  An image, or a texture,

List out the various text clipping, List out the various Text clipping?  ...

List out the various Text clipping?  All-or-none string clipping -if all of the string is inside a clip window, keep it or else discards. All-or-none character clipping - disca

Introduction of 2-d and 3-d transformations, Introduction of 2-D and 3-D  ...

Introduction of 2-D and 3-D  Transformations In this, the subsequent things have been discussed in detail as given below: Different geometric transformations as transla

Different advertising hooks, Question: (a) Name two visual effects you...

Question: (a) Name two visual effects you would use to communicate: i. Good old days ii. Rebellion iii. Fear (b) Explain each of your answers given in section (a).

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