[Gnuplot-info] pm3d map grid question

[Raphael <ro...@cl...>]

Hi all

I have a question regarding to color-map a dataset. Lets say I have 9
datapoints (3x3). If I plot this datafile with pm3d map, than I only get
4 colored boxes (color between the points). Is there a way to get 9
boxes (in such a way that my (x,y)-coordinate is centered in that
colored rectangle and not at the edge?). I have my data like this in the
file :

x1   y1    value
x1   y2    value
x1   y3    value

x2   y1   value
  :
  :

etc

Or do I have to transform my grid my hand?


greetings
Raphael