LightSource ( azdeg=315, altdeg=45, hsv_min_val=0, hsv_max_val=1, hsv_min_sat=1, hsv_max_sat=0 ) ¶Ĭreate a light source coming from the specified azimuth and elevation.Īngles are in degrees, with the azimuth measuredĬlockwise from north and elevation up from the zero plane of the surface. Set color to be used for low out-of-range values. Requires norm.clip = False set_under ( color=u'k', alpha=None ) ¶ Set color to be used for high out-of-range values. is_gray ( ) ¶ set_bad ( color=u'k', alpha=None ) ¶ The default value for the extend keyword in the Is not False, colorbar creation will pick up colorbar_extend as When this colormap exists on a scalar mappable and colorbar_extend Matplotlib.cm.ScalarMappable subclasses make heavy use of thisĭata->normalize->map-to-color processing chain. For scaling of data into the interval see The interval to the RGBA color that the respective Colormap Typically Colormap instances are used to convert data values (floats) from
Colormap ( name, N=256 ) ¶īaseclass for all scalar to RGBA mappings. Special case to handle “no color”: if c is “none” (case-insensitive), to_rgba_array ( c, alpha=None ) ¶Īccepts a single mpl color spec or a sequence of specs. If arg is an RGBA sequence and alpha is not None,Īlpha will replace the original A. In addition, if arg is “none” (case-insensitive), Returns an RGBA tuple of four floats from 0-1.įor acceptable values of arg, see to_rgb(). If arg is RGBA, the A will simply be discarded. a string representation of a float, like ‘0.4’,.Returns an RGB tuple of three floats from 0-1.Īrg can be an RGB or RGBA sequence or a string in any of Ordinarily only the single instance instantiated in this module,ĬolorConverter, is needed. Provides methods for converting color specifications to RGB or RGBAĬaching is used for more efficient conversion upon repeated calls If high these are converted to valid indices byĬolormap._call_(). Out-of-range values are mapped to -1 if low and ncolors
For the basic built-in colors, you can use a single letter Specifications or sequences of them to RGB or RGBA.Ĭommands which take color arguments can use several formats to specify The module also provides a single instance, colorConverter, of theĬolorConverter class providing methods for converting single color ListedColormap, which is used for generating a custom colormap from a LinearSegmentedColormap, which is used to generate all the built-inĬolormap instances, but is also useful for making custom colormaps, and
Subclass then this number in the 0-1 range is mapped to a color using an Mapped onto the range 0-1 using an instance of Normalize or of a Colormapping typically involves two steps: a data array is first This module includes functions and classes for color specificationĬonversions, and for mapping numbers to colors in a 1-D array of colors calledĪ colormap. RGB and RGBA are sequences of, respectively, 3 or 4 floats in the A module for converting numbers or color arguments to RGB or RGBA
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