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Geometric transformations Map, Annotation 2020-06-12 083555 - Coggle…
Geometric transformations
Map
Non-isometric
Dilation
A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.
A description of a dilation includes the scale factor (or ratio) and the center of the dilation.
Dilation by k = -1
A non-isometric transformation is a transformation that does not preserve the distances and angles between a pre-image and its image. So, in a non- isometric transformation the image is a different size or shape than its pre-image
Isometric
Translation
Translate then reflect - glide
Reflection
Reflect then translate - glide
Rotation
Rotation by 180 degrees
Rotation is a rigid transformation in which an object is turned through some angle (the angle of rotation) about a point
An isometric transformation (or isometry) is a shape-preserving transformation (movement) in the plane or in space.