3D Geometric Transformations

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3D Geometric Transformations
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Kinds of Transformations

• Translation
• Rotation
• Reflection
• Scaling
• Shearing

NOTES

• These transformations are an important component
  of computer graphics programming
• Each transformation type can be expressed in a (4
  x 4) matrix, called the Transformation Matrix

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Translation
Moving the object from one position to another
4
Rotation

• Rotating the object about an axis

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Reflection
Mirroring an object about a plane
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Scaling
Reducing or enlarging the object
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Shearing
Moving selected vertices of an object linearly
along an axis
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AutoCAD Transformation Commands
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Rotations Positive and Negative
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Rotations Positive about x,y,z
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Multiple Rotations
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3D Transformations

• The End