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· Computer Graphics Lecture 2 1 Lecture 2 Transformations 2 Transformations. What is a transformation? • P′=T(P) What does it do? Transform the coordinates / normal vectors of objects Why use them? • Modelling-Moving the objects to the desired location in the environment -Multiple instances of a prototype ahang-mardom-azar-varadoga.com Composite transformations 1. Composite TransformationMore complex geometric & coordinate transformations can be built from the basic transformation by using the process of composition of ahang-mardom-azar-varadoga.come: Scaling about a fixed ahang-mardom-azar-varadoga.comormation sequence to produce scalingw.r.t a selected fixed position (h, k) using ascaling function that can only scale relative tothe coordinate origin are: ahang-mardom-azar-varadoga.com  · 2D TRANSFORMATIONS AND MATRICES y bx dy x ax cy y x b d a c y x = + = + = ' ' ' ' General Transformation of 2D points: Solid body transformations – the above equation is valid for all set of points and lines of COMPOSITE TRANSFORMATIONS If we want to apply a series of transformations T 1, T 2, ahang-mardom-azar-varadoga.com~vplab/courses/CG/PDF/ahang-mardom-azar-varadoga.com

# 2d composite transformation in computer graphics pdf

· etc. When a transformation takes place on a 2D plane, it is called 2D transformation. Transformations play an important role in computer graphics to reposition the graphics on the screen and change their size or orientation. Homogenous Coordinates To perform a sequence of transformation such as translation followed by rotation and scaling, weahang-mardom-azar-varadoga.com  · Geometry for Computer Graphics 6 Computer Graphics and Visualisation A square matrix is much easier to deal with so the matrix is extended to a 3×3 matrix The column vectors representing points now have an extra entry. If the bottom row of the matrix is [0 0 1] then w' will be 1 and we can ignore it. The effect of set-ahang-mardom-azar-varadoga.com /informatica_grafica/ahang-mardom-azar-varadoga.com  · Computer Graphics Lecture 2 1 Lecture 2 Transformations 2 Transformations. What is a transformation? • P′=T(P) What does it do? Transform the coordinates / normal vectors of objects Why use them? • Modelling-Moving the objects to the desired location in the environment -Multiple instances of a prototype ahang-mardom-azar-varadoga.comComposite transformations. 2. Homogeneous Coordinates. • Homogeneous coordinates are key to all computer graphics systems. • Hardware Rotation (2D ). Here you will learn about composite transformations. Look at the following diagram. It involves two translations. Identify the two translations of triangle ABC. CS Introduction to Computer Graphics We translate a 2D point by adding translation distances, tx and ty, to the .. Composite Transformation Matrix.

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Composite Transformation, time: 12:35
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Two Dimensional Composite Transformation in Computer Graphics, time: 8:01
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