MATLAB - How to plot x,y on an image and save?

Question

File datafile.txt

code  x     y
23    22.1  33.11
23    110   22
23    11    200 
24    111   321
24    222   111
24    10    22.1
10    88.3  99.3
10    11         


        

Answer 1

There are numerous ways:

• Superimposing line plots on images

• Can I use a JPEG file as a background in a MATLAB plot?

• How do I add a background image to my GUI or figure window?

And there's always some kind of problem with adjusting the axes afterwards.