Grafiklar. Matplotlib moduli

import pylab
import matplotlib.patches
import matplotlib.lines
import matplotlib.path
def drawRect(color):
pylab.xlim(-2, 2)
pylab.ylim(-2, 2)
pylab.grid()
axes = pylab.gca()
axes.set_aspect("equal")
rect_back = matplotlib.patches.Rectangle((-0.5, -0.5), 1, 1, color='k')
rect_front = matplotlib.patches.Rectangle((-1, -1), 2, 2, color=color)
axes.add_patch(rect_back)
axes.add_patch(rect_front)
pylab.text(-1.5, 1.7, u'color = {}'.format(color))
pylab.show()
if __name__ == "__main__":
color = 'goldenrod'
drawRect(color)
Натижа:

Bundan tashqari, rangni HTML va CSS-da odatdagidek RGB formatida, o'n olti raqamli son tizimida rang qismlarini o'rnatib qo'yish mumkin. Masalan:
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import pylab
import matplotlib.patches
import matplotlib.lines
import matplotlib.path
def drawRect(color):
pylab.xlim(-2, 2)
pylab.ylim(-2, 2)
pylab.grid()
axes = pylab.gca()
axes.set_aspect("equal")
rect_back = matplotlib.patches.Rectangle((-0.5, -0.5), 1, 1, color='k')
rect_front = matplotlib.patches.Rectangle((-1, -1), 2, 2, color=color)
axes.add_patch(rect_back)
axes.add_patch(rect_front)
pylab.text(-1.5, 1.7, u'color = {}'.format(color))
pylab.show()
if __name__ == "__main__":
color = '#31D115'
drawRect(color)
Натижа:

Qisqartirilgan shaklda, masalan, '#ABC', ranglarni ko'rsatib bo'lmaydi. Rangni belgilashning yana bir usuli - bu mos ravishda R, G va B tarkibiy qismlarini aniqlaydigan uchta elementning ro'yxati yoki uchta elementdan foydalanish. Rangni aniqlashning ushbu usulining asosiy xususiyati shundaki, rang tarkibiy qismlari 0.0 dan 1.0 oralig'ida o'zgaruvchan nuqtali raqam bilan ko'rsatilishi kerak. Masalan:
#!/usr/bin/env python
# -*- coding: utf-8 -*-