what are geometric transformation
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Answer:
In mathematics, a geometric transformation is any bijection of a set to itself (or to another such set) with some salient geometrical underpinning.[1] More specifically, it is a function whose domain and range are sets of points — most often both {\displaystyle \mathbb {R} ^{2}}\mathbb {R} ^{2} or both {\displaystyle \mathbb {R} ^{3}}\mathbb {R} ^{3} — such that the function is injective so that its inverse exists.[2] The study of geometry may be approached via the study of these transformations.[3]
Geometric transformations can be classified by the dimension of their operand sets (thus distinguishing between, say, planar transformations and spatial transformations). They can also be classified according to the properties they preserve:
Displacements preserve distances and oriented angles (e.g., translations);[4]
Isometries preserve angles and distances (e.g., Euclidean transformations);[5][6]
Similarities preserve angles and ratios between distances (e.g., resizing);[7]
Affine transformations preserve parallelism (e.g., scaling, shear);[6][8]
Projective transformations preserve collinearity;[9]
Each of these classes contains the previous one.[9]
Möbius transformations using complex coordinates on the plane (as well as circle inversion) preserve the set of all lines and circles, but may interchange lines and circles.
Original image (based on the map of France)
Isometry
Similarity
Affine transformation
Projective transformation
inversion
Diffeomorphisms (bidifferentiable transformations) are the transformations that are affine in the first order; they contain the preceding ones as special cases, and can be further refined.[10]
Conformal transformations preserve angles, and are, in the first order, similarities.
Equiareal transformations, preserve areas in the planar case or volumes in the three dimensional case.[11] and are, in the first order, affine transformations of determinant.
Homeomorphisms (bicontinuous transformations) preserve the neighborhoods of points.
Conformal transformation
Equiareal transformation
Diffeomorphism
Homeomorphism
Transformations of the same type form groups that may be sub-groups of other transformation groups.
Step-by-step explanation:
In mathematics, a geometric transformation is any bijection of a set to itself (or to another such set) with some salient geometrical underpinning. More specifically, it is a function whose domain and range are sets of points — most often both or both. — such that the function is injective so that its inverse exists.