Hi, thanks for your repleys. I have tried matplotlib but it is extremely slow. I think it is more optimized for good looking plots instead of speed. I do not know the Python bindings of gnuplot and Veusz. To clarify the issue again, by 25000 data points I mean 25000 pixels, i.e. corresponding (x,y) pairs. Thus the mapping to one pixel on the screen is not unique.
Now, that I have to implement this problem on my own I am very impressed by the plotting capabilities of LabView which brings thounds of data points on screen in an extremely short time. Thanks for your help. Best regards, Daniel -- http://mail.python.org/mailman/listinfo/python-list
