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

Overstriking, why overstriking is harmful.justify

why overstriking is harmful.justify

Radiosity - polygon rendering & ray tracing methods, Radiosity - Polygon Re...

Radiosity - Polygon Rendering & Ray Tracing Methods Radiosity simulates the diffuse propagation of light begin at the light sources. Because global illumination is an extremel

Advantages and deficiencies of gourand shading, Advantages and Deficiencies...

Advantages and Deficiencies of Gourand Shading Advantages of Gourand Shading: this eliminates the intensity discontinuities related with the constant shading model. Defi

Surface of revolution - modeling and rendering, Surface of Revolution - Mod...

Surface of Revolution - Modeling and Rendering In the previsions sections we have learned different type of techniques of generating curves, although if we wish to generate a

Implement cohen sutherland and liang barsky algorithm, Implement Cohen Suth...

Implement Cohen Sutherland and Liang Barsky line clipping algorithms in C-language.  Test your code for line segments with end points falling in various regions.

Shading - polygon rendering and ray tracing methods, Shading - Polygon Rend...

Shading - Polygon Rendering and Ray Tracing Methods When one thing is under the exposure of light, so the rays of light are distributed over the surface and there the distribu

Algorithm scan-line, Algorithm (scan-line): For each scan line perform ...

Algorithm (scan-line): For each scan line perform from step (1) to (3). 1) For all pixels on a scan-line, arrange depth [x]=1.0 i.e. max value and Intensity [x] = background

Explain the lofting method in maya, QUESTION 1: a) Draw a Bezier curve ...

QUESTION 1: a) Draw a Bezier curve showing the following components i. hull ii. curve CV iii. span iv. start and end point b) Maya provides highly effective tools for all t

Representation schemes used in three dimensional object, What are the vario...

What are the various representation schemes used in three dimensional objects?  Boundary representation (B-res) - explain the 3 dimensional objects as a set of surfaces that se

Normalization transformation, what is normalization transformation?why is i...

what is normalization transformation?why is it needed and important?give simple example also.

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