Point clipping - 2-d viewing and clipping, Computer Graphics

Assignment Help:

Point clipping - 2-d viewing and clipping

Point clipping is the method related to suitable display of points in the scene, though this type of clipping is utilized less frequently in comparison to the other types, that is, line and polygon clipping. Although, in several situations, for example: the scenes that involve particle movements as explosion, dust and so on, this is quite helpful. For the sake of simplicity, suppose that the clip window is rectangular in shape. Consequently, the minimum and maximum coordinate value, that is, (Xwmax, Ywmax) and (Xwmin, Ywmin) are sufficient to identify window size and any point (X,Y), that can be displayed or shown should satisfy the subsequent inequalities. Or else, the point will not be visible. Hence, the point will be clipped or not can be determined on the basis of subsequent inequalities.

   Ywmax

≤ X ≤ Xw Xwmin  max

≤ Y ≤ Yw Ywmin  max

     Ywmin 

Xw      Xw min max

Figure: Point Clipping

This is to be noticed that (Xwmax, Ywmax) and (Xwmin, Ywmin) can be either world coordinate window boundary or viewport boundary. Additionally, if any one of these four inequalities is not satisfied then the point is clipped that is not saved for display.


Related Discussions:- Point clipping - 2-d viewing and clipping

Please give me ans, Differences between digital differential analyzer and ...

Differences between digital differential analyzer and VECGEN line algorithm?

Define resolution, What is Resolution, how to adjust it.  Resolution: T...

What is Resolution, how to adjust it.  Resolution: The maximum number of points that can be displayed without overlap on a CRT is referred to as the resolution . A more prec

Define b-spline curve, Define B-Spline curve?  A B-Spline curve is a se...

Define B-Spline curve?  A B-Spline curve is a set of piecewise (usually cubic) polynomial segments that pass close to a set of control points. Though the curve does not pass by

Derive the single combined transformation matrix, A 2D geometric shape is r...

A 2D geometric shape is rotated about a point with coordinates (1,2)  by 90°  in a clockwise direction.  Then, the shape is scaled about the same point in the x-coordinate by 2 tim

Acquire the perspective transformation, Acquire the perspective transformat...

Acquire the perspective transformation onto z = - 2 Plane, where (0, 0, 18) is the center of projection. Solution: Now centre of projection, C (a, b, c) = (0, 0, 18) ∴ (n 1

Soft image and strata studio - computer animation, Soft Image and Strata ...

Soft Image and Strata Studio - Computer Animation SoftImage It is the one of most well known computer animation software packages. It is used in several top production

How to identify window area - raster graphics and clipping, A convex polygo...

A convex polygonal region having n- vertices {P 0 , P 1 , P 2 ..., P n - 1 , P n , P 0 } or lattice points to be identified by the user includes the convex window area. To be exact

Visible surface detection - modeling and rendering , Visible Surface Detect...

Visible Surface Detection - Modeling and Rendering Provided a set of 3-Dimentional objects and a viewing position for the generation of realistic graphics show, we want to de

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