Transformation for 3-d shearing, Computer Graphics

Assignment Help:

2-dimensional xy-shearing transformation, as explained in equation (19), can also be simply extended to 3-dimensional case. All coordinates are translated as a function of displacements of another two coordinates, which is,

Shxyz=      x'=x+a.y+b.z

                 y'=y+c.x+d.z                      

                 z'=z+e.x+f.y--------(46)

Here a,b,c,d,e and f are the shearing factors in the respective directions. Equation (46) in terms of homogeneous HC system, is:

7_equation 47.png

That is, P'h = Ph.Shxyz          --------------(47)

Here remember that the off-diagonal terms in the upper left 3x3 sub-matrix of the generalized 4x4 transformation matrix in equation (31) produce shear in 3-dimensions.


Related Discussions:- Transformation for 3-d shearing

Persistence of phosphor - display devices, Persistence (of phosphor) - Disp...

Persistence (of phosphor) - Display devices Time it takes the emitted light from screen to decay to one-tenth of its original intensity. The point where an electron gun strikes

Normalization transformation, Find the normalization transformation N, whic...

Find the normalization transformation N, which uses the rectangle W(1, 1); X(5, 3); Y(4, 5) and Z(0, 3) as a window and the normalized deice screen as viewpoint.

Distinguish between window port and view port, Distinguish between window p...

Distinguish between window port & view port?  A portion of a picture that is to be displayed by a window is called as window port. The display area of the part selected or the f

What are the advantages of the boundary representation, Advantages of the B...

Advantages of the Boundary Representation (i) This format gives efficient picture generation and easy access to other geometric information. (ii) The changes produced by mos

#title., what is the working procedure of CRT with diagram

what is the working procedure of CRT with diagram

What you mean by parallel projection, What you mean by parallel projection?...

What you mean by parallel projection?  Parallel projection is one in which z coordinates is discarded and parallel lines from every vertex on the object are extended unless the

Explain the bresenham line generation algorithm, 1. Explain the Bresenham ...

1. Explain the Bresenham line generation algorithm via digitizing the line with end  points as (15, 5) and also (25,13). Ans. Now we are utilizing the Bresenham line generati

What is a dot size and interdot distance, What is a dot size and interdot d...

What is a dot size and interdot distance? Dot size may be explained as the diameter of a single dot on the devices output. Dot size is also known as the Spot size.  Interdo

Time based and presentation tools, Time Based and Presentation Tools In...

Time Based and Presentation Tools In such authoring systems, components and events are organized beside a timeline, along with resolutions as high as 1/30 second. Time based to

Define emissive and non-emissive displays, What do you mean by emissive and...

What do you mean by emissive and non-emissive displays?  The emissive display changes electrical energy into light energy. The plasma panels, thin film electro-luminescent disp

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