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Make a grid using ImageMagick

posted by rajbot on May 23rd, 2007  

I needed a jpeg with gridlines on it. Here is a python script that will generate the arguments to ImageMagick to create a grid:

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#!/usr/bin/python
 
cmd = 'convert -size 1000x1000 xc:white -strokewidth 1 '
 
for i in range(0, 999, 100):
  cmd += "-draw 'line "+str(i)+",0 "+str(i)+",999' "
 
for i in range(0, 999, 100):
  cmd += "-draw 'line 0,"+str(i)+" 999,"+str(i)+"' "
 
cmd += "grid.jpg"
 
print cmd

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