# Revision history [back]

### How to show lines and images on a chess board (matrix_plot)

Hi, I naively created a chess board with a matrix_plot.

m = matrix_plot([[1,0,1,0,1,0,1,0], [0,1,0,1,0,1,0,1], [1,0,1,0,1,0,1,0], [0,1,0,1,0,1,0,1], [1,0,1,0,1,0,1,0], [0,1,0,1,0,1,0,1], [1,0,1,0,1,0,1,0], [0,1,0,1,0,1,0,1], [1,0,1,0,1,0,1,0]] ) Shown alone, it looks almost like a chess board, but it has axes and white padding on the periphery

(m).show(aspect_ratio=1)

I then naively tried to add a line to that plot - Q = line([(-0.5,0),(1,1)]) (m+Q).show()

Somehow I have lost the whole matrix plot . This is version 8.7 in a jupyter notebook Q = line([(-0.5,0),(1,1)]) (m+Q).show() i only get 2 rows - the rest is truncated.

Question - how to graph lines on top of this matrix plot without truncating the apprearance?

Merci! Pat

 2 None FrédéricC 4893 ●3 ●41 ●104

### How to show lines and images on a chess board (matrix_plot)

Hi, I naively created a chess board with a matrix_plot.

m = matrix_plot([[1,0,1,0,1,0,1,0],
[0,1,0,1,0,1,0,1],
[1,0,1,0,1,0,1,0],
[0,1,0,1,0,1,0,1],
[1,0,1,0,1,0,1,0],
[0,1,0,1,0,1,0,1],
[1,0,1,0,1,0,1,0],
[0,1,0,1,0,1,0,1],
[1,0,1,0,1,0,1,0]]
)


Shown alone, it looks almost like a chess board, but it has axes and white padding on the periphery

(m).show(aspect_ratio=1)

 (m).show(aspect_ratio=1)


I then naively tried to add a line to that plot -

Q = line([(-0.5,0),(1,1)])
(m+Q).show()(m+Q).show()


Somehow I have lost the whole matrix plot . This is version 8.7 in a jupyter notebook notebook

Q = line([(-0.5,0),(1,1)])
(m+Q).show()


i only get 2 rows - the rest is truncated.

Question - how to graph lines on top of this matrix plot without truncating the apprearance?

Merci! Pat