Package Scientific :: Package Visualization :: Module Color :: Class SymmetricColorScale

Class SymmetricColorScale

Mapping of a symmetric number interval to a color range

The colors are red for negative numbers and green for positive numbers, with a color intensity proportional to the absolute value of the argument. Zero is mapped to white.

Instance Methods

Color

__call__(self, value)
Returns: the color corresponding to value

__init__(self, max, n=20)

Method Details

call(self, value)
(Call operator)

Parameters:

value (float) - the value within the range for which the color is requested. If the value is outside of the specified range, the edge of the range is used instead.

Returns: Color

the color corresponding to value

init(self, max, n=20)
(Constructor)

Parameters:

max (float) - a positive number defining the range, which is from -max to +max.

Class SymmetricColorScale

__call__(self, value) (Call operator)

__init__(self, max, n=20) (Constructor)

call(self, value)
(Call operator)

init(self, max, n=20)
(Constructor)