gnuplot - How to use dgrid3d with X and Y points to plot an intensity map -


i have file x y data points (> 10^4)

12.399999999999999  3.7333333333333334 22.13333333333334   34.93333333333333 13.600000000000001  10.133333333333333 94.26666666666667   26. 25.333333333333336  8.666666666666666 52. 38. 25.33333333333333   51.733333333333334 24.799999999999997  37.333333333333336 77.33333333333333   5.466666666666667 13.2    7.733333333333333 33.46666666666667   4.666666666666667 33.86666666666666   46. 52.8    3.466666666666667 24.400000000000002  20.933333333333334 54.53333333333334   27.6 121.73333333333335  30.133333333333333 103.73333333333333  13.466666666666667 47.599999999999994  5.333333333333333 ...........

(positive , non-gridded), plot gnuplot.

i have been looking different posts , examples, , provide function intensity or directly z values corresponding intensity, or use array of values indicating pixels or squared zones of image.

i ask if there way plot intensity map plot providing x , y points. also, know if possible indicate range plot , granularity (the bin size or interpolation order).

thank help

edit (based on comments)

i have tried set size square

set autoscale fix unset key set view map set xrange [0:200] set yrange [0:200] set dgrid3d 10,10,4 splot "data.dat" w pm3d

gnuplot tells me need third column weights. have no third column in dataset, x , y values. how correctly use dgrid3d, , plot intensity map or frequency map of points?

note: gnuplot version 5.2, , there option bin can used bin x values, not know if can bin 2d points too


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