[Gnuplot-info] Plot matrix with GNUplot. Slow

[FortCpp <lyh...@gm...>]

I am using GNUplot for plotting a small matrix. The matrix is 100x100 by
size. e.g.

1.23212 2.43123 -1.24312 ......
-4.23123 2.00458 5.60234 ......
......
The data is not neatly stored in the file. So from C++ point of view, due to
the lack of length per data, there is no way to load a whole number, but it
has to check when the number is loading. I guess this should be the reason
of the slow plotting speed.

Now I have 3 questions:
Q1: Is loading the bottle neck?

Q2: If I can make the data file neatly stored (setw). e.g.

 1.23212  2.43123 -1.24312 ......
-4.23123  2.00458  5.60234 ......
......
Does the plotting speed get any improvement? (Maybe GNUplot can check what
the pattern is. Thus improve the loading speed. Not sure.)

Q3: Any other options that I can set to make it faster?

Thanks!



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