RGB and RGBA are sequences of, respectively, 3 or 4 floats in the range 0-1.
This module includes functions and classes for color specification conversions, and for mapping numbers to colors in a 1-D array of colors called a colormap.
Mapping data onto colors using a colormap typically involves two steps: a data array is first mapped onto the range 0-1 using a subclass of Normalize
, then this number is mapped to a color using a subclass of Colormap
. Two subclasses of Colormap
provided here: LinearSegmentedColormap
, which uses piecewise-linear interpolation to define colormaps, and ListedColormap
, which makes a colormap from a list of colors.
.. seealso::
:doc:`/tutorials/colors/colormap-manipulation` for examples of how to
make colormaps and
:doc:`/tutorials/colors/colormaps` for a list of built-in colormaps.
:doc:`/tutorials/colors/colormapnorms` for more details about data
normalization
More colormaps are available at palettable_.
The module also provides functions for checking whether an object can be interpreted as a color (is_color_like
), for converting such an object to an RGBA tuple (:None:None:`to_rgba`) or to an HTML-like hex string in the "#rrggbb" format (to_hex
), and a sequence of colors to an (n, 4) RGBA array (to_rgba_array
). Caching is used for efficiency.
Colors that Matplotlib recognizes are listed at /tutorials/colors/colors
.
<Unimplemented 'target' '.. _palettable: https://jiffyclub.github.io/palettable/'>
<Unimplemented 'target' '.. _xkcd color survey: https://xkcd.com/color/rgb/'>
A module for converting numbers or color arguments to RGB or RGBA.
A module for converting numbers or color arguments to RGB or RGBA.
RGB and RGBA are sequences of, respectively, 3 or 4 floats in the range 0-1.
This module includes functions and classes for color specification conversions, and for mapping numbers to colors in a 1-D array of colors called a colormap.
Mapping data onto colors using a colormap typically involves two steps: a data array is first mapped onto the range 0-1 using a subclass of Normalize
, then this number is mapped to a color using a subclass of Colormap
. Two subclasses of Colormap
provided here: LinearSegmentedColormap
, which uses piecewise-linear interpolation to define colormaps, and ListedColormap
, which makes a colormap from a list of colors.
.. seealso::
:doc:`/tutorials/colors/colormap-manipulation` for examples of how to
make colormaps and
:doc:`/tutorials/colors/colormaps` for a list of built-in colormaps.
:doc:`/tutorials/colors/colormapnorms` for more details about data
normalization
More colormaps are available at palettable_.
The module also provides functions for checking whether an object can be interpreted as a color (is_color_like
), for converting such an object to an RGBA tuple (:None:None:`to_rgba`) or to an HTML-like hex string in the "#rrggbb" format (to_hex
), and a sequence of colors to an (n, 4) RGBA array (to_rgba_array
). Caching is used for efficiency.
Colors that Matplotlib recognizes are listed at /tutorials/colors/colors
.
<Unimplemented 'target' '.. _palettable: https://jiffyclub.github.io/palettable/'>
<Unimplemented 'target' '.. _xkcd color survey: https://xkcd.com/color/rgb/'>
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