ColorMap¶

class visualife.core.styles.ColorMap(stops, **kwargs)¶

Bases: object

A class that converts a real value into a color

The constructor creates a color map from given stops

Keyword Arguments (kwargs)`(kwargs)`:
Parameters:	stops (`list` of `(float, color)` tuples, `color` is `str` in HEX format or color name) – values and colors that defines stops in ColorMap object kwargs – see below
	left_color (`color`) – a color assigned to values lover than the first stop color; by default the leftmost color is used right_color (`color`) – a color assigned to values higher than the last stop color; by default the rightmost color is used continuous_palette (`bool`) – if True creates a continuous color palette

Attributes Summary

`left_color`	Returns a color assigned to values lover than the first stop color
`max_value`	Returns the maximum value of this color scale.
`min_value`	Returns the minimum value of this color scale.
`right_color`	Returns a color assigned to values lover than the last stop color

Methods Summary

`color`(val)	Returns an RGB color (as a string) for given value
`color_tuple`(val)	Returns an RGB color (as a tuple of 3 integer components) for given value
`continuous_color`(val)	Returns a color for given value
`continuous_palette`(pal, str]], <class >}[, s])	Retrun continuous color scale

Attributes Documentation

left_color¶: Returns a color assigned to values lover than the first stop color

max_value¶

Returns the maximum value of this color scale. All values higher than this one will be painted with self.right_color color

Returns:	maximum value of this color scale

min_value¶

Returns the minimum value of this color scale. All values lower than this one will be painted with self.left_color color

Returns:	minimum value of this color scale

right_color¶: Returns a color assigned to values lover than the last stop color

Methods Documentation

color(val) → str¶

Returns an RGB color (as a string) for given value

Parameters:	val (`float`) – value for a color

color_tuple(val) → tuple¶

Returns an RGB color (as a tuple of 3 integer components) for given value

Parameters:	val (`tuple`) – value for a color

continuous_color(val: float) → str¶

Returns a color for given value

Parameters:	val (`float`) – value for a color
Returns:	string in HEX format

static continuous_palette(pal: {typing.List[typing.Tuple[float, str]], <class 'object'>}, s=0.1) → Tuple[List[float], List[str]]¶

Retrun continuous color scale

Parameters:	pal (`ColorMap` object or `list` of `(float, color)` tuples, `color` is `str` in HEX format or color name) – discreet color palette s (``float) – resolution
Returns:	`tuple` of two `list`, first holds values, second holds colors in HEX format