在matplotlib中命名的颜色 [英] Named colors in matplotlib
本文介绍了在matplotlib中命名的颜色的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
在matplotlib中有什么命名的颜色可用于绘图?我可以在matplotlib文档中找到一个列表,声明这些是唯一的名称:
b:blue
但是,我发现这些颜色也可以使用,至少在这种情况下:
g: green
r:red
c:cyan
m:magenta
y:yellow
k:black
w:white
<$> p $ p>分散(X,Y,颜色='red')
分散(X,Y,color ='orange' 'darkgreen')
但这些不在上面的列表中。有没有人知道可用的命名颜色的详尽列表?
解决方案
Matplotlib使用一个字典从它的colors.py模块。
要打印名称,请使用:
#python2:
pre>
import matplotlib
名称,十六进制在matplotlib.colors.cnames.iteritems():
print(name,hex)
#python3:
import matplotlib
名称,hex在matplotlib.colors.cnames.items()中:
print(name,hex)
这是完整的字典:
cnames = {
'aliceblue':'#F0F8FF',
'antiquewhite':'#FAEBD7',
'aqua':'#00FFFF',
'aquamarine':'#7FFFD4' ,
'azure':'#F0FFFF',
'beige':'#F5F5DC',
'bisque':'#FFE4C4',
'black':' 000000',
'blanchedalmond':'#FFEBCD',
'blue':'#0000FF',
'blueviolet':'#8A2BE2',
'brown' '#A52A2A',
'burlywood':'#DEB887',
'cadetblue':'#5F9EA0',
'chartreuse':'#7FFF00',
'巧克力':'#D2691E',
'coral':'#FF7F50',
'cornflowerblue':'#6495ED',
'cornsilk':'#FFF8DC',
'crimson':'#DC143C',
'cyan':'#00FFFF',
'darkblue':'#00008B',
'darkcyan':'#008B8B',
'darkgoldenrod':'#B8860B',
'darkgray':'#A9A9A9',
'darkgreen':'#006400',
'darkkhaki':'#BDB76B'
'darkmagenta':'#8B008B',
'darkolivegreen':'#556B2F',
'darkorange':'#FF8C00',
'darkorchid':'#9932CC ',
'darkred':'#8B0000',
'darksalmon':'#E9967A',
'darkseagreen':'#8FBC8F',
'darkslateblue' #483D8B',
'darkslategray':'#2F4F4F',
'darkturquoise':'#00CED1',
'darkviolet':'#9400D3',
'deeppink' :'#FF1493',
'deepskyblue':'#00BFFF',
'dimgray':'#696969',
'dodgerblue':'#1E90FF',
' firebrick':'#B22222',
'floralwhite':'#FFFAF0',
'forestgreen':'#228B22',
'fuchsia':'#FF00FF',
'gainsboro':'#DCDCDC',
'ghostwhite':'#F8F8FF',
'gold':'#FFD700',
'goldenrod':'#DAA520',
'grey':'#808080',
'green':'#008000',
'greenyellow':'#ADFF2F',
'honeydew':'#F0FFF0' ,
'hotpink':'#FF69B4',
'indianred':'#CD5C5C',
'indigo':'#4B0082',
'ivory':' FFFFF0',
'khaki':'#F0E68C',
'lavender':'#E6E6FA',
'lavenderblush':'#FFF0F5',
'lawngreen' '#7CFC00',
'lemonchiffon':'#FFFACD',
'lightblue':'#ADD8E6',
'lightcoral':'#F08080',
' ':'#E0FFFF',
'lightgoldenrodyellow':'#FAFAD2',
'lightgreen':'#90EE90',
'lightgray':'#D3D3D3',
'lightpink':'#FFB6C1',
'lightsalmon':'#FFA07A',
'lightseagreen':'#20B2AA',
'lightskyblue':'#87CEFA',
'lightslategray':'#778899',
'lightsteelblue':'#B0C4DE',
'lightyellow':'#FFFFE0',
'lime':'#00FF00'
'limegreen':'#32CD32',
'linen':'#FAF0E6',
'magenta':'#FF00FF',
'maroon':'#800000 ',
'mediumaquamarine':'#66CDAA',
'mediumblue':'#0000CD',
'mediumorchid':'#BA55D3',
'mediumpurple' #9370DB',
'mediumseagreen':'#3CB371',
'mediumslateblue':'#7B68EE',
'mediumspringgreen':'#00FA9A',
'mediumturquoise' :'#48D1CC',
'mediumvioletred':'#C71585',
'midnightblue':'#191970',
'mintcream':'#F5FFFA',
' mistyrose':'#FFE4E1',
'moccasin':'#FFE4B5',
'navajowhite':'#FFDEAD',
'navy':'#000080',
'oldlace':'#FDF5E6',
'olive':'#808000',
'olivedrab':'#6B8E23',
'orange':'#FFA500',
'orangered':'#FF4500',
'orchid':'#DA70D6',
'palegoldenrod':'#EEE8AA',
'palegreen':'#98FB98' ,
'paleturquoise':'#AFEEEE',
'palevioletred':'#DB7093',
'papayawhip':'#FFEFD5',
'peachpuff':' FFDAB9',
'peru':'#CD853F',
'pink':'#FFC0CB',
'plum':'#DDA0DD',
'powderblue' '#B0E0E6',
'purple':'#800080',
'red':'#FF0000',
'rosybrown':'#BC8F8F',
'royalblue ':'#4169E1',
'saddlebrown':'#8B4513',
'salmon':'#FA8072',
'sandybrown':'#FAA460',
'seagreen':'#2E8B57',
'seashell':'#FFF5EE',
'sienna':'#A0522D',
'silver':'#C0C0C0',
'skyblue':'#87CEEB',
'slateblue':'#6A5ACD',
'slategray':'#708090',
'snow':'#FFFAFA'
'springgreen':'#00FF7F',
'steelblue':'#4682B4',
'tan':'#D2B48C',
'teal':'#008080 ',
'thistle':'#D8BFD8',
'tomato':'#FF6347',
'turquoise':'#40E0D0',
'violet' #EE82EE',
'wheat':'#F5DEB3',
'white':'#FFFFFF',
'whitesmoke':'#F5F5F5',
'yellow' :'#FFFF00',
'yellowgreen':'#9ACD32'}
这样绘制:
import matplotlib.pyplot as plt
import matplotlib.patches as patches
import matplotlib.colors as colors
import math
fig = plt.figure()
ax = fig.add_subplot(111)
ratio = 1.0 / 3.0
count = math.ceil(math.sqrt(len(colors.cnames)))
x_count = count * ratio
y_count = count / ratio
x = 0
y = 0
w = 1 / x_count
h = 1 / y_count
用于colors.cn中的c:
pos =(x / x_count,y / y_count)
ax.add_patch(patches.Rectangle(pos,w,h,color = c))
ax.annotate(c,xy = pos)
如果y> = y_count -1:
x + = 1
y = 0
else:
y + = 1
$ b plt.show()
What named colors are available in matplotlib for use in plots? I can find a list on the matplotlib documentation that claims that these are the only names:
b: blue g: green r: red c: cyan m: magenta y: yellow k: black w: white
However, I've found that these colors can also be used, at least in this context:
scatter(X,Y, color='red') scatter(X,Y, color='orange') scatter(X,Y, color='darkgreen')
but these are not on the above list. Does anyone know an exhaustive list of the named colors that are available?
解决方案Matplotlib uses a dictionary from its colors.py module.
To print the names use:
# python2: import matplotlib for name, hex in matplotlib.colors.cnames.iteritems(): print(name, hex) # python3: import matplotlib for name, hex in matplotlib.colors.cnames.items(): print(name, hex)
This is the complete dictionary:
cnames = { 'aliceblue': '#F0F8FF', 'antiquewhite': '#FAEBD7', 'aqua': '#00FFFF', 'aquamarine': '#7FFFD4', 'azure': '#F0FFFF', 'beige': '#F5F5DC', 'bisque': '#FFE4C4', 'black': '#000000', 'blanchedalmond': '#FFEBCD', 'blue': '#0000FF', 'blueviolet': '#8A2BE2', 'brown': '#A52A2A', 'burlywood': '#DEB887', 'cadetblue': '#5F9EA0', 'chartreuse': '#7FFF00', 'chocolate': '#D2691E', 'coral': '#FF7F50', 'cornflowerblue': '#6495ED', 'cornsilk': '#FFF8DC', 'crimson': '#DC143C', 'cyan': '#00FFFF', 'darkblue': '#00008B', 'darkcyan': '#008B8B', 'darkgoldenrod': '#B8860B', 'darkgray': '#A9A9A9', 'darkgreen': '#006400', 'darkkhaki': '#BDB76B', 'darkmagenta': '#8B008B', 'darkolivegreen': '#556B2F', 'darkorange': '#FF8C00', 'darkorchid': '#9932CC', 'darkred': '#8B0000', 'darksalmon': '#E9967A', 'darkseagreen': '#8FBC8F', 'darkslateblue': '#483D8B', 'darkslategray': '#2F4F4F', 'darkturquoise': '#00CED1', 'darkviolet': '#9400D3', 'deeppink': '#FF1493', 'deepskyblue': '#00BFFF', 'dimgray': '#696969', 'dodgerblue': '#1E90FF', 'firebrick': '#B22222', 'floralwhite': '#FFFAF0', 'forestgreen': '#228B22', 'fuchsia': '#FF00FF', 'gainsboro': '#DCDCDC', 'ghostwhite': '#F8F8FF', 'gold': '#FFD700', 'goldenrod': '#DAA520', 'gray': '#808080', 'green': '#008000', 'greenyellow': '#ADFF2F', 'honeydew': '#F0FFF0', 'hotpink': '#FF69B4', 'indianred': '#CD5C5C', 'indigo': '#4B0082', 'ivory': '#FFFFF0', 'khaki': '#F0E68C', 'lavender': '#E6E6FA', 'lavenderblush': '#FFF0F5', 'lawngreen': '#7CFC00', 'lemonchiffon': '#FFFACD', 'lightblue': '#ADD8E6', 'lightcoral': '#F08080', 'lightcyan': '#E0FFFF', 'lightgoldenrodyellow': '#FAFAD2', 'lightgreen': '#90EE90', 'lightgray': '#D3D3D3', 'lightpink': '#FFB6C1', 'lightsalmon': '#FFA07A', 'lightseagreen': '#20B2AA', 'lightskyblue': '#87CEFA', 'lightslategray': '#778899', 'lightsteelblue': '#B0C4DE', 'lightyellow': '#FFFFE0', 'lime': '#00FF00', 'limegreen': '#32CD32', 'linen': '#FAF0E6', 'magenta': '#FF00FF', 'maroon': '#800000', 'mediumaquamarine': '#66CDAA', 'mediumblue': '#0000CD', 'mediumorchid': '#BA55D3', 'mediumpurple': '#9370DB', 'mediumseagreen': '#3CB371', 'mediumslateblue': '#7B68EE', 'mediumspringgreen': '#00FA9A', 'mediumturquoise': '#48D1CC', 'mediumvioletred': '#C71585', 'midnightblue': '#191970', 'mintcream': '#F5FFFA', 'mistyrose': '#FFE4E1', 'moccasin': '#FFE4B5', 'navajowhite': '#FFDEAD', 'navy': '#000080', 'oldlace': '#FDF5E6', 'olive': '#808000', 'olivedrab': '#6B8E23', 'orange': '#FFA500', 'orangered': '#FF4500', 'orchid': '#DA70D6', 'palegoldenrod': '#EEE8AA', 'palegreen': '#98FB98', 'paleturquoise': '#AFEEEE', 'palevioletred': '#DB7093', 'papayawhip': '#FFEFD5', 'peachpuff': '#FFDAB9', 'peru': '#CD853F', 'pink': '#FFC0CB', 'plum': '#DDA0DD', 'powderblue': '#B0E0E6', 'purple': '#800080', 'red': '#FF0000', 'rosybrown': '#BC8F8F', 'royalblue': '#4169E1', 'saddlebrown': '#8B4513', 'salmon': '#FA8072', 'sandybrown': '#FAA460', 'seagreen': '#2E8B57', 'seashell': '#FFF5EE', 'sienna': '#A0522D', 'silver': '#C0C0C0', 'skyblue': '#87CEEB', 'slateblue': '#6A5ACD', 'slategray': '#708090', 'snow': '#FFFAFA', 'springgreen': '#00FF7F', 'steelblue': '#4682B4', 'tan': '#D2B48C', 'teal': '#008080', 'thistle': '#D8BFD8', 'tomato': '#FF6347', 'turquoise': '#40E0D0', 'violet': '#EE82EE', 'wheat': '#F5DEB3', 'white': '#FFFFFF', 'whitesmoke': '#F5F5F5', 'yellow': '#FFFF00', 'yellowgreen': '#9ACD32'}
You could plot them like this:
import matplotlib.pyplot as plt import matplotlib.patches as patches import matplotlib.colors as colors import math fig = plt.figure() ax = fig.add_subplot(111) ratio = 1.0 / 3.0 count = math.ceil(math.sqrt(len(colors.cnames))) x_count = count * ratio y_count = count / ratio x = 0 y = 0 w = 1 / x_count h = 1 / y_count for c in colors.cnames: pos = (x / x_count, y / y_count) ax.add_patch(patches.Rectangle(pos, w, h, color=c)) ax.annotate(c, xy=pos) if y >= y_count-1: x += 1 y = 0 else: y += 1 plt.show()
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