I am plotting using Matplotlib in Python. I want create plot with grid, and here is an example from a plotting tutorial. In my plot range if the y axis is from 0 to 14 and if I use pylab.grid(True) then it makes a grid with the size of square of two, but I want the size to be 1. How can I force it?
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3 Answers
Try using ax.grid(True, which='both') to position your grid lines on both major and minor ticks, as suggested here.
EDIT: Or just set your ticks manually, like this:
import matplotlib.pyplot as plt
fig = plt.figure()
ax = fig.add_subplot(111)
ax.plot([1,2,3,14],'ro-')
# set your ticks manually
ax.xaxis.set_ticks([1.,2.,3.,10.])
ax.grid(True)
plt.show()
1 Comment
ashim
I don't have minor ticks, how can I create them?
If you want to follow along with the example you cited:
>>> import numpy
>>> import pylab
>>> t = numpy.arange(0.0, 1.0+0.1, 0.01)
>>> s = numpy.cos(2*2*numpy.pi*t)
>>> pylab.plot(t,s)
>>> pylab.grid(True)
>>> pylab.xticks([i/10.0 for i in range(0,12)])
>>> pylab.show()
Comments
import numpy as np
import matplotlib.pyplot as plt
# Define the crossword grid size
grid_size = 15 # Adjust as needed
# Initialize an empty grid with spaces
grid = np.full((grid_size, grid_size), ' ', dtype=str)
# Place words in the grid (simplified, approximate positioning)
words_across = {
(0, 0): "ALBERTEINSTEIN",
(2, 0): "BARACKOBAMA",
(4, 0): "FREDERICKBANTING",
(6, 0): "MURRAYGELLMANN",
(8, 0): "TONIMORRISON",
(10, 0): "JOHNNASH",
}
words_down = {
(0, 2): "ERNESTLAWRENCE",
(0, 4): "AZIZSANCAR",
(0, 6): "JOHNSTEINBECK",
(0, 8): "MILTONFRIEDMAN",
(0, 10): "SELMAWAKSMAN",
(0, 12): "LECHWALESA",
(0, 14): "LOUISEGLUCK",
}
# Fill the grid with words
for (row, col), word in words_across.items():
for i, letter in enumerate(word):
grid[row, col + i] = letter
for (row, col), word in words_down.items():
for i, letter in enumerate(word):
grid[row + i, col] = letter
# Plot the crossword puzzle
fig, ax = plt.subplots(figsize=(8, 8))
ax.set_xticks(np.arange(grid_size + 1) - 0.5, minor=True)
ax.set_yticks(np.arange(grid_size + 1) - 0.5, minor=True)
ax.grid(which="minor", color="black", linestyle='-', linewidth=2)
ax.tick_params(which="both", bottom=False, left=False, labelbottom=False, labelleft=False)
# Add letters to the grid
for i in range(grid_size):
for j in range(grid_size):
if grid[i, j] != ' ':
ax.text(j, i, grid[i, j], ha='center', va='center', fontsize=12, fontweight='bold')
plt.show()
1 Comment
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