Package topo :: Package pattern :: Module basic :: Class Sigmoid

Class Sigmoid

Two-dimensional sigmoid pattern, dividing the plane into positive and negative halves with a smoothly sloping transition between them.

Nested Classes

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Inherited from param.parameterized.Parameterized: __metaclass__

Instance Methods

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function(self, p)
Function to draw a pattern that will then be scaled and rotated.

source code

Inherited from base.patterngenerator.PatternGenerator: __call__

Inherited from base.patterngenerator.PatternGenerator (private): _apply_mask, _create_and_rotate_coordinate_arrays, _setup_xy

Inherited from param.parameterized.Parameterized: __getstate__, __init__, __repr__, __setstate__, __str__, debug, defaults, force_new_dynamic_value, get_param_values, get_value_generator, inspect_value, message, print_param_values, script_repr, set_default, set_dynamic_time_fn, set_param, state_pop, state_push, verbose, warning

Inherited from param.parameterized.Parameterized (private): _add_parameter, _instantiate_param, _set_name, _setup_params

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __subclasshook__

Class Methods

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Inherited from param.parameterized.Parameterized: params, print_param_defaults

Class Variables

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slope = param.Number(default= 10.0, bounds= (None, None), soft...
Multiplicative parameter controlling the smoothness of the transition between the two regions; high values give a sharp transition.

name = <param.parameterized.String object at 0xb1eacac>
String identifier for this object.

Inherited from base.patterngenerator.PatternGenerator: bounds, mask, mask_shape, offset, orientation, output_fns, position, scale, size, x, xdensity, y, ydensity

Inherited from param.parameterized.Parameterized: print_level

Properties

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Inherited from object: __class__

Method Details

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function(self, p)

source code

Function to draw a pattern that will then be scaled and rotated.

Instead of implementing __call__ directly, PatternGenerator subclasses will typically implement this helper function used by __call__, because that way they can let __call__ handle the scaling and rotation for them. Alternatively, __call__ itself can be reimplemented entirely by a subclass (e.g. if it does not need to do any scaling or rotation), in which case this function will be ignored.

Overrides: base.patterngenerator.PatternGenerator.function: (inherited documentation)

Class Variable Details

[hide private]

slope

Multiplicative parameter controlling the smoothness of the transition between the two regions; high values give a sharp transition.

Value:

param.Number(default= 10.0, bounds= (None, None), softbounds= (-100.0, 100.0), doc
= """
        Multiplicative parameter controlling the smoothness of the transition 
        between the two regions; high values give a sharp transition.""")