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

Deffrent, deffrent between vecgen algorithm and bresenham line algorithm in...

deffrent between vecgen algorithm and bresenham line algorithm in computer graphic

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| show different coordinates of the similar coordinate system. Here all

Storing information structures in display memory, What is the major disadva...

What is the major disadvantages of storing information structures in display memory? A major disadvantage of storing information structures in display memory is that when color an

Beam penetration method and shadow mask method, Beam Penetration Method and...

Beam Penetration Method and Shadow Mask Method Two methods exist for displaying colors in a CRT monitor - beam penetration method and shadow mask method. Beam penetration metho

Drawing, how can I draw a flower.

how can I draw a flower.

Linearly interpolate - modeling and rendering, Linearly interpolate - Model...

Linearly interpolate - Modeling and Rendering I 4 = I 1 + t (I 2 - I 1 ); here t = (|y 1 - y 2 |)/(|y 1 - y 2 |) I D = I A + t (I B - I A ); here t = (|AD|)/(|AB|)

Animated gif, Animated GIF: For combining various GIF images in a particul...

Animated GIF: For combining various GIF images in a particular file to create animation, GIF file format is used. There are several drawbacks to such functionality. The form

Diffuse reflection - polygon rendering & ray tracing methods, Diffuse Refle...

Diffuse Reflection - Polygon Rendering & Ray Tracing Methods It is characteristic of light reflected from a non-shiny, dull surface. Objects illuminated solely through diff

Introduction of curves and surfaces, Introduction of Curves and Surfaces ...

Introduction of Curves and Surfaces This section has covered the methods of generating polygons, closed and curves surfaces. Under those methods we have discussed different ty

Video controller, Video controller : A Fixed area of the system memory co...

Video controller : A Fixed area of the system memory controller for the frame buffer, and the video controller is given direct access to the frame – buffer memory, frame – buffer

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