Package topo :: Package pattern :: Module basic :: Class Ring
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Class Ring

source code

                        object --+        
                                 |        
 param.parameterized.Parameterized --+    
                                     |    
base.patterngenerator.PatternGenerator --+
                                         |
                                        Ring

2D ring pattern generator.

See the Disk class for a note about the Gaussian fall-off.

Nested Classes [hide private]

Inherited from param.parameterized.Parameterized: __metaclass__

Instance Methods [hide private]
 
function(self, params)
Function to draw a pattern that will then be scaled and rotated.
source code

Inherited from base.patterngenerator.PatternGenerator: __call__

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_dynamic_time_fn, state_pop, state_push, verbose, warning

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

Class Methods [hide private]

Inherited from param.parameterized.Parameterized: params, print_param_defaults

Class Variables [hide private]
  thickness = param.Number(default= 0.015, bounds= (0.0, None), ...
Thickness (line width) of the ring.
  smoothing = param.Number(default= 0.1, bounds= (0.0, None), so...
Width of the Gaussian fall-off inside and outside the ring.
  aspect_ratio = param.Number(default= 1.0, bounds= (0.0, None),...
Ratio of width to height; size*aspect_ratio gives the overall width.
  size = param.Number(default= 0.5)
Determines the overall size of the pattern.

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

Inherited from param.parameterized.Parameterized: name, print_level

Properties [hide private]

Inherited from object: __class__

Method Details [hide private]

function(self, params)

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]

thickness

Thickness (line width) of the ring.
Value:
param.Number(default= 0.015, bounds= (0.0, None), softbounds= (0.0, 0.5), preceden\
ce= 0.60, doc= "Thickness (line width) of the ring.")

smoothing

Width of the Gaussian fall-off inside and outside the ring.
Value:
param.Number(default= 0.1, bounds= (0.0, None), softbounds= (0.0, 0.5), precedence\
= 0.61, doc= "Width of the Gaussian fall-off inside and outside the ring.")

aspect_ratio

Ratio of width to height; size*aspect_ratio gives the overall width.
Value:
param.Number(default= 1.0, bounds= (0.0, None), softbounds= (0.0, 2.0), precedence\
= 0.31, doc= "Ratio of width to height; size*aspect_ratio gives the overall width.\
")