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A family of function objects for transforming one set of coordinates into another.
Coordinate mapper functions are useful for defining magnifications and other kinds of transformations on sheet coordinates, e.g. for defining retinal magnification using a CFProjection. A CoordinateMapperFn (e.g. MagnifyingMapper), is applied to an (x,y) pair and returns a new (x,y) pair. To apply a mapping to a CF projection, set the CFProjection's coord_mapper parameter to an instance of the desired CoordinateMapperFn.
$Id: __init__.py 8938 2008-08-21 13:29:50Z ceball $
Version: $Revision: 8938 $
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AffineTransform Remaps the input with an affine transform. |
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Cartesian2Polar Maps from Cartesian (x,y) to polar (radius,angle). |
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ConstantMapper Map all values to the same constant, pre-specified coordinates. |
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CoordinateMapperFn Abstract base class for functions mapping from a 2D coordinate into another one. |
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Grid Divides the 2D area into a grid, where all points within each grid element map to the same location. |
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IdentityMF Return the x coordinate of the given coordinate. |
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Jitter Additively modifies calculated x,y coordinates, e.g. |
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MagnifyingMapper Exponential (magnifying) mapping function. |
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NormalJitter Additively modifies calculated x,y coordinates with Gaussian random noise. |
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OttesSCMapper Abstract class for superior colliculus mappings. |
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OttesSCMotorMapper Efferent superior colliculus mapping. |
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OttesSCSenseMapper Afferent superior colliculus mapping. |
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Pipeline Applies a sequence of coordmappers, left to right. |
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Polar2Cartesian Map from polar (radius,angle) to Cartesian (x,y) coordinates. |
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ReducingMapper Provides a mapping that reduces the center of the activity. |
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Rotate2d Rotate the input around the origin by an angle in radians. |
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Scale2d Scale the input along the x and y axes by sx and sy, respectively. |
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SingleDimensionMapper Coordinate Mapper that uses an origin-centered 1-D mapping function. |
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Translate2d Translate the input by xoff,yoff. |
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__package__ = |
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