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Filledcurves fails with datafile instead of function

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  Filledcurves fails with datafile instead of function Ingo Thies <ingo.thies@gmx.de> - 2015-09-01 17:27 +0200
    Re: Filledcurves fails with datafile instead of function Karl Ratzsch <mail.kfr@gmx.net> - 2015-09-01 20:11 +0200
      Re: Filledcurves fails with datafile instead of function Ingo Thies <ingo.thies@gmx.de> - 2015-09-01 20:32 +0200
    Re: Filledcurves fails with datafile instead of function Karl Ratzsch <mail.kfr@gmx.net> - 2015-09-02 13:15 +0200

#3066 — Filledcurves fails with datafile instead of function

Dear all,

since the update from 5.0.0 to 5.0.1 (Mac OS-X 10.10, Fink) plotting
with filledcurves fails with data file while it continues to work with
functions. Maybe there is a trick which I didn't recognize yet.

Sample script:

f(x)=-(x-5.)**2+6 # some function giving an arc-like curve
set xrange [0:10]
set yrange [0:7]

## Works with function
plot f(x) notitle w filledcurves below y=7. lc rgb "blue",\
     f(x) t 'f(x)' w l lc rgb "#ff0000"

pause -1
##fails with data
plot 'test.dat' u 1:2 notitle w filledcurves below y=7. lc rgb "blue",\
     'test.dat' t 'file' w l lc rgb "#ff0000"

Let test.dat contain this peak-like data points

0.	0.
2.	1.
4.	4.
6.	6.
8.	3.
10.	0.

Best wishes,

Ingo

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#3067

Am 01.09.2015 um 17:27 schrieb Ingo Thies:
> Dear all,
> 
> since the update from 5.0.0 to 5.0.1 (Mac OS-X 10.10, Fink) plotting
> with filledcurves fails with data file while it continues to work with
> functions. Maybe there is a trick which I didn't recognize yet.
> 

looks indeed broken. The simple workaround is to give the y-value as a
third input column

plot "-" us 1:2:(7) w filledc
0 1
3 5
5 6
8 2
10 0
e

or "plot 1:2 w filledc x2" in your example.

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#3068

Am 01.09.15 um 20:11 schrieb Karl Ratzsch:

> looks indeed broken. The simple workaround is to give the y-value as a
> third input column
> 
> plot "-" us 1:2:(7) w filledc

Thanks, this works indeed!

Best wishes,

ingo

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#3069

Am 01.09.2015 um 17:27 schrieb Ingo Thies:
> since the update from 5.0.0 to 5.0.1 (Mac OS-X 10.10, Fink) plotting
> with filledcurves fails with data file while it continues to work with
> functions. Maybe there is a trick which I didn't recognize yet.

> plot f(x) notitle w filledcurves below y=7.

> ##fails with data
> plot 'test.dat' u 1:2 notitle w filledcurves below y=7. lc rgb "blue"

There was a small change beween 5.0pl0 and 1. Giving explicitly "y1=" or
"y2=" never worked if the plot used the other axis, so the syntax was
changed to just "y=" and always using the current axis. This seems to
have introduced the regression for data plots.

I've left a note on

https://sourceforge.net/p/gnuplot/bugs/1568/

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