'Line clipping' presentation slideshows

Compositing, Clipping, Curves Week 3, Thu May 26

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Computer Graphics

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2D Viewing

2D Viewing. ????? ??? ???? ???. Contents. 3 D Rendering Pipeline 2D Rendering Pipeline Clipping Cohen-Sutherland Line Clipping Sutherland-Hodgeman Polygon Clipping Viewport Transformation Scan Conversion Summary of Transformation. 3 D Rendering Pipeline. 3 D Primitives.

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Computer Graphics

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??? ????????. World ? Device Transformation. Viewport. World. Device. Windows. WCS (World Coordinate System). PDCS (Physical Device Coordinate System). NDCS (Normalized Coordinate System). UCS (User Coordinate System). WCS?theoretically infinite.

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??? Clipping

??? Clipping. ?? ??? ???? ???????? ??? ??? ?? ? ??? ??? ???? ?? ?? ??? ????? ?? ???. Clipping. 2D Viewing. ????? ???? Line Clipping -. Cohen-Sutherland Line Clipping. 1001. 1000. 1010. 0001. 0000. 0010. 0101. 0100. 0110. Clipping window. (xwmin, ywmax). (xwmax, ywmax).

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Computer Graphics

Computer Graphics . Clipping Fall FCC 2006. Line Clipping. What happens when one or both endpoints of a line segment are not inside the specified drawing area? Draw just the portions of a line (or object) that fall within a given region/window/screen (usually rectangular). Drawing

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Computer Graphics

Computer Graphics. Chapter 8 Two-Dimensional Viewing. 1. The 2D viewing. World (2D). Window in the world. Display device (2D). Viewport in the display device. 1. The 2D viewing. (Clipping) Window : What area in the world is to be viewed? To define what we want to see

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Clipping:

Clipping:. Clipping is a process of dividing an object into visible and invisible positions and displaying the visible portion and discarding the invisible portion. Generally we have clipping algorithms for the following primitive types. Point clipping Line clipping Area clipping (Polygon)

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Computer Graphics 9: Clipping In 3D

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2D Viewing and Projection

2D Viewing and Projection. Dr. Aree Ali Mohammed Assistant Professor 2014-2015 3 rd Stage aree.ali@univsul.edu.iq. Windowing and Clipping. The process of selecting and viewing the picture with different views is called windowing.

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Computer Graphics : Clipping

Computer Graphics : Clipping. By Ureerat Suksawatchon. Contents. Clipping Introduction Brute Force Cohen-Sutherland Clipping Algorithm. Clipping Concept.

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Two-Dimensional Viewing

Two-Dimensional Viewing. 6. Contents. Window and Viewport The Viewing Transformation Window-to-Viewport coordinate transformation Point clipping Line clipping Polygon clipping Exterior clipping. Window and Viewport. Window A world-coordinate area selected for display

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Computer Graphics

Computer Graphics. Chapter 4 2D Viewing Algorithms. Coordinate Systems. y. v. (u,v). (x, y). 0. x. 0. u. Device Coordinates : Device dependent Limits Positive Integer values. World Coordinates : User-Defined Limits Floating point values. Window : A rectangular region

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Clipping

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Clipping

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Clipping

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Introduction to Computer Graphics

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