Re: [Gnuplot-info] help requested - drawing gridlines in image plot

[Thomas S. <t.s...@fz...>]

to my knowledge, only 'by hand':

set arrow 1 from 0.5,1.5 to 40.5,1.5 front nohead
set arrow 2 from 0.5,2.5 to 40.5,2.5 front nohead
...
set arrow 39 from 0.5,39.5 to 40.5,39.5 front nohead
set arrow 40 from 1.5,0.5 to 1.5,40.5 front nohead
set arrow 41 from 2.5,0.5 to 2.5,40.5 front nohead
...
set arrow 78 from 39.5,0.5 to 39.5,40.5 front nohead

it would be a good idea to produce a script containing
these commands and reading it in whenever it's needed.


melysion wrote:
> 
> Hi there
> 
> Thanks to help from this forum, I have been able to create a 40 by 40
> image plot. 
> 
> Each 'cell' in the plot has a value that is indicated by a colour. But
> there are no lines drawn to show individual cells.
> 
> Is there an option for me to do this in gnuplot?
> 
> Thanks
> 

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