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__init__(self,
xname,
yname,
nullc_array,
x_relative_scale=1)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature |
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__call__(self,
x)
Returns a scalar if x is scalar. |
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createParameterization(self)
Creates a (non-arc-length) parameterization |
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tgt_vec(self,
x,
rescale=False)
Return tangent vector to an interior point of nullcline, normalized
to length 1. |
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curvature(self,
xdata)
Signed curvature at x is returned (scalar) for scalar x, otherwise
array of such scalars for 1D array x. |
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grad_curvature(self,
xdata)
Derivative of the curvature at x is returned (scalar) for scalar x,
otherwise array of such scalars for 1D array x. |
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curvature_at_sample_points(self,
refine=0)
Returns array of signed scalars for each x data point (knot) of the
nullcline spline (computed just inside endpoints by 1% of distance to
next innermost sample point). |
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grad_curvature_at_sample_points(self,
refine=0)
Returns array of signed scalars for each x data point (knot) of the
nullcline spline (computed just inside endpoints by 1% of distance to
next innermost sample point). |
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concavity(self,
xdata)
Concavity scalar +/- 1 or 0 at x is returned for scalar x, otherwise
array of such scalars for 1D array x. |
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concavity_at_sample_points(self,
refine=0)
Returns array of +/- 1 or 0 scalars for each x data point (knot) of
the nullcline spline (computed just inside endpoints by 1% of
distance to next innermost sample point). |
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crop(self,
xdom,
ydom,
resample_frac=0.1)
Returns a new Nullcline object cropped to the (x, y) domain given by
pairs xdom and ydom. |
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Inherited from object :
__delattr__ ,
__getattribute__ ,
__hash__ ,
__new__ ,
__reduce__ ,
__reduce_ex__ ,
__repr__ ,
__setattr__ ,
__str__
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