graphics concepts - unit ii
Post on 06-Nov-2015
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GRAPHICS CONCEPTS
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Coordinate systemsModel Coordinate System (MCS)
World Coordinate System (WCS)
Screen Coordinate System (SCS)
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Model Coordinate SystemThe MCS is defined as the reference space of the model with respect to which all the model geometrical data is stored. The origin of MCS can be arbitrary chosen by the user.
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World Coordinate System
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Screen Coordinate System
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TransformationsTranslationScalingReflectionRotation Concatenated transformation
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TRANSLATION
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SCALING
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REFLECTION
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HIDDEN LINE REMOVAL
Visibility Techniques
Hidden line removal Algorithm
Priority AlgorithmArea oriented algorithm
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VISIBILITY TECHNIQUESMinimax test
Containment test
Computing silhouettes
Surface test
Edge intersection
Segment comparison
Homogeneity test
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MINIMAX TEST
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CONTAINMENT TEST
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COMPUTING SILHOUETTES
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