[Matplotlib-users] Simplifying plots (reducing data points)?

Community matplotlib-users
1

I produced a line plot as:
ax.plot (x, y, ‘.’)
and saved as pdf.

Both x and y were large vectors, resulting in a large pdf, and when incorporated into a LaTeX document, the resulting pdf takes a long time to open.

Other than my manually decimating the vectors:
ax.plot (x[::100], y[::100], ‘.’)

Is there some way within mpl to simplify plots? Or perhaps post-processing the pdf?

Thanks,
Neal

···

Those who don’t understand recursion are doomed to repeat it

2

I don't know if it is acceptable to you, but may be producing a png file
would be an option (latex would accept it).
Regards,
  Juan

···

El 10/2/20 a las 10:21 AM, Neal Becker escribió:

I produced a line plot as:
ax.plot (x, y, '.')
and saved as pdf.

Both x and y were large vectors, resulting in a large pdf, and when
incorporated into a LaTeX document, the resulting pdf takes a long time
to open.

Other than my manually decimating the vectors:
ax.plot (x[::100], y[::100], '.')

Is there some way within mpl to simplify plots? Or perhaps
post-processing the pdf?

Thanks,
Neal

--
/Those who don't understand recursion are doomed to repeat it/

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3

Yes, I considered this. But to produce publication quality documents I’ve learned to avoid bitmap graphics.

···

Those who don’t understand recursion are doomed to repeat it

4

How about rasterizing just the plot? plt.plot(x, y, rasterized=True) should work I think.

пт, 2 окт. 2020 г. в 14:52, Neal Becker <ndbecker2@gmail.com>:

···

Yes, I considered this. But to produce publication quality documents I’ve learned to avoid bitmap graphics.

On Fri, Oct 2, 2020 at 9:40 AM fiolj <fiolj@yahoo.com> wrote:

I don’t know if it is acceptable to you, but may be producing a png file
would be an option (latex would accept it).
Regards,
Juan

El 10/2/20 a las 10:21 AM, Neal Becker escribió:

I produced a line plot as:
ax.plot (x, y, ‘.’)
and saved as pdf.

Both x and y were large vectors, resulting in a large pdf, and when
incorporated into a LaTeX document, the resulting pdf takes a long time
to open.

Other than my manually decimating the vectors:
ax.plot (x[::100], y[::100], ‘.’)

Is there some way within mpl to simplify plots? Or perhaps
post-processing the pdf?

Thanks,
Neal

–
/Those who don’t understand recursion are doomed to repeat it/

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5

Neal,

Do you have line simplification turned on in your rcParams?
https://matplotlib.org/3.3.2/tutorials/introductory/usage.html#line-segment-simplification

-paul

···

On Fri, Oct 2, 2020 at 6:22 AM Neal Becker <ndbecker2@gmail.com> wrote:

I produced a line plot as:
ax.plot (x, y, ‘.’)
and saved as pdf.

Both x and y were large vectors, resulting in a large pdf, and when incorporated into a LaTeX document, the resulting pdf takes a long time to open.

Other than my manually decimating the vectors:
ax.plot (x[::100], y[::100], ‘.’)

Is there some way within mpl to simplify plots? Or perhaps post-processing the pdf?

Thanks,
Neal

–

Those who don’t understand recursion are doomed to repeat it

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6

I didn’t change it from the default. Guess I could try changing ‘path.simplify_threshold’

···

Those who don’t understand recursion are doomed to repeat it