I have a huge amount of 2D-coordinates, associated with a value, e.g.:
x | y | value 27.50 52.15 12.51 61.83 13.32 57.56 36.23 21.83 41.73 40.46 85.67 25.20 ...
The data is not tabular and I Want the points between two data-points to be interpolated in some way (which way is not really clear, yet)
I want to preset the data as heatmap like this:
Is there any ready-to-use package for PSTricks or TikZ to do it?