以下是我的代码片段,一切正常。只是好奇而不是具有特定颜色的显示条,可以将图像应用于条形图,例如国家标志等(请忽略我不一致的参数传递顺序)
感谢
string a = "1000000001001000100000010100001001010100010000011";
long int value;
value = atoi(a.c_str());
cout <<"converted value "<<value;
答案 0 :(得分:2)
AFAIK没有内置的方法来执行此操作,尽管matplotlib
确实允许在条形图中使用阴影线。例如,请参阅hatch_demo。
但是以条形图的形式组合几次调用plt.imshow
并不是非常困难。这是一个相当粗略的功能,可以用来制作使用图像的基本条形图,使用标志作为图像。
import numpy as np
import matplotlib.pyplot as plt
from scipy.misc import imread
def image_plot(heights, images, spacing=0):
# Iterate through images and data, autoscaling the width to
# the aspect ratio of the image
for i, (height, img) in enumerate(zip(heights, images)):
AR = img.shape[1] / img.shape[0]
width = height * AR
left = width*i + spacing*i
right = left + width
plt.imshow(img, extent=[left, right, 0, height])
# Set x,y limits on plot window
plt.xlim(0, right)
plt.ylim(0, max(heights)*1.1)
# Read in flag images
usa_flag = imread('american_flag.png')
aussie_flag = imread('australian_flag.png').swapaxes(0, 1)
turkish_flag = imread('turkish_flag.png').swapaxes(0, 1)
# Make up some data about each country
usa_data = 33
aussie_data = 36
turkish_data = 27
data = [usa_data, aussie_data, turkish_data]
flags = [usa_flag, aussie_flag, turkish_flag]
image_plot(data, flags, spacing=2)
如果不对x
和y
轴做任何想法,请返回此图。