Re: [Gnuplot-info] "Holes" when using Smooth Bezier?

[Thomas S. <t.s...@fz...>]

omit the line
2009-02-05 04:31:00,0
from your data:

plot datafile using 1:($2 <= 0 ? 0/0 : ($2 > 10000 ? 10001 : $2)) smooth
bezier with lines title "Smooth Bezier, Capped", \
datafile using 1:($2 <= 0 ? 0/0 : $2) smooth bezier with lines title "Smooth
Bezier", \
datafile using 1:($2 > 10000 ? 10001 : $2) with lines title "Lines, Capped",
\
datafile using 1:2 with lines title "Lines", \
datafile using 1:2 with dots title "Dots"


Alexander Skwar-6 wrote:
> 
> Hi.
> 
> I'm using Gnuplot 4.2.4 and 4.3 CVS (~2009-02-03) to plot some data with
> the following plot command:
> 
> plot datafile using 1:($2 > 10000 ? 10001 : $2) smooth bezier with
> lines title "Smooth Bezier, Capped", \
>  datafile using 1:2 smooth bezier with lines title "Smooth Bezier", \
>  datafile using 1:($2 > 10000 ? 10001 : $2) with lines title "Lines,
> Capped", \
>  datafile using 1:2 with lines title "Lines", \
>  datafile using 1:2 with dots title "Dots"
> 
> Doing so, I noticed that there are "holes" in the curves when I use
> "smooth bezier".
> 
> Please see samples at (they all show the same data, just different
> formats):
> 
> http://public-files.askwar.s3.amazonaws.com/gnuplot-bezier-hole/rpl.svg
> http://public-files.askwar.s3.amazonaws.com/gnuplot-bezier-hole/rpl.png
> http://public-files.askwar.s3.amazonaws.com/gnuplot-bezier-hole/rpl.svg.png
> 
> On
> http://public-files.askwar.s3.amazonaws.com/gnuplot-bezier-hole/rpl.gnuplot
> you can find the complete gnuplot file and there's also the CSV datafile
> at
> http://public-files.askwar.s3.amazonaws.com/gnuplot-bezier-hole/rpl.csv
> 
> The "hole" that I'm talking about is shown for the red curve (the 1st
> curve)
> at about 05.02.09 04:00 and ends at about 14:00. But as you can see in
> the datafile and also in the "curves" using dots or lines, there ARE
> datapoints
> available during that timeframe.
> 
> It, however, might be so, that indeed there are some tiny holes in the
> CSV file.
> But it's BY FAR not as big a hole as the smooth bezier curve makes it look
> like.
> 
> What is causing these holes in the display?
> 
> Thanks a lot,
> Alexander
> -- 
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