Module enthought.chaco._speedups_fallback

API Reference for Enthought Tool Suite 3.0.1

Module that implements pure-python equivalents of the functions in the _speedups extension module.

Functions
Imported Names

Function summary

array_combine(a, b, op = operator.and_, func = lambda x: x)
scatterplot_gather_points(index, index_low, index_high, value, value_low, value_high, index_mask = None, index_sel = None, index_sel_mask = None, value_mask = None, value_sel = None, value_sel_mask = None)

Functions

array_combine(a, b, op = operator.and_, func = lambda x: x)

Returns op(func(a), func(b)) if a and b are both not None; if one is None, then returns func() on the non-None array; if both are None, then returns None.
scatterplot_gather_points(index, index_low, index_high, value, value_low, value_high, index_mask = None, index_sel = None, index_sel_mask = None, value_mask = None, value_sel = None, value_sel_mask = None)

Takes index and value arrays, masks, and optional selection arrays, and returns the list of points and corresponding selection mask for those points.

Parameters

index : float array (1D)

Array of indexes of the points

index_low : float or None

The minimum acceptable value in the index array

index_high : float or None

The maximum acceptable value in the index array

value : float array (1D)

Array of values of the points

value_low : float or None

The minimum acceptable value in the value array

value_high : float or None

The maximum acceptable value in the value array

Optional Parameters

index_mask : bool or int array (1D)

Mask array for the indexes

index_sel : sequence of ints

A list/tuple/array of indices of selected positions in the index array

index_sel_mask : array of ints or bools

An mask array with True values indicating which points are selected

value_mask : bool or int array (1D)

Mask array for the values

value_sel : sequence of ints

A list/tuple/array of indices of selected positions in the value array

value_sel_mask : array of ints or bools

An mask array with True values indicating which points are selected

Returns

points : float array (Nx2)

The points that match all the masking criteria

sel_mask : bool array (1D)

Mask indicating which indices in points are selected

Imported Names

Local name	Refers to
array	numpy.array
compress	numpy.compress
invert	numpy.invert
isnan	numpy.isnan
operator	operator
transpose	numpy.transpose
zeros	numpy.zeros

© Copyright 2002-2008 Enthought, Inc.