plt

import numpy as np import pandas as pd import matplotlib.pyplot as plt df = pd.read_csv("filesc/file1.csv") df.head() BBox = ((df.x.min(), df.x.max(), df.y.min(), df.y.max())) ruh_m = plt.imread('map.png') print(BBox) fig, ax = plt.subplots(figsize = (8,7)) ax.scatter(df.x, df.y, zorder=1, alpha= 0.2, c='b', s=10) ax.set_title('Plotting Spatial Data on Map') ax.set_xlim(BBox[0],BBox[1]) ax.set_ylim(BBox[2],BBox[3]) ax.imshow(ruh_m, zorder=0, extent = BBox, aspect= 'equal') plt.show()

python matplotlib how to graph point on line

import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111)
ax.set_xlim(0,10)
ax.set_ylim(0,10)

# draw lines
xmin = 1
xmax = 9
y = 5
height = 1
plt.hlines(y, xmin, xmax)
plt.vlines(xmin, y - height / 2., y + height / 2.)
plt.vlines(xmax, y - height / 2., y + height / 2.)
average = (xmax+xmin)/2

# draw a point on the line
px = 5 
plt.plot(px,y, 'ro', ms = 15, mfc = 'r')

# add an arrow
plt.annotate('Point', (px,y), xytext = (px+0.35, y+0.5), 
horizontalalignment='right')

# add numbers
plt.text(xmin - 0.1, y, 'Left', horizontalalignment='right')
plt.text(xmax + 0.1, y, 'Right', horizontalalignment='left')

plt.axis('off')
plt.show()

Posted by: Guest on August-06-2020

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