Gnuplot Scripts

Thanks Dave. I'll dive in and see what happens.

Carl

That's when the fun starts. Feel free to ask questions if you get stuck.

Dave

Got the .csv create script working but having errors creating the .png.

Any idea why it won't compile?

Thanks,

Carl

Got the .csv create script working but having errors creating the .png.

Any idea why it won't compile?

Thanks,

Carl

That code is the Gnuplot code (not Python code). Rather than run that in Indigo, you need to run it with Gnuplot which is an entirely separate program. You need to install Gnuplot.

Perhaps the easiest way is to follow Karl's installation instructions for the Indigo plugin IndigoPlotD.

Dave

Ok, I got gnuplot installed and tried pasting the code into terminal and got this:

Code: Select all

TV:~ TV$ gnuplot

   G N U P L O T
   Version 4.6 patchlevel 4    last modified 2013-10-06
   Build System: Darwin i386

   Copyright (C) 1986-1993, 1998, 2004, 2007-2013
   Thomas Williams, Colin Kelley and many others

   gnuplot home:     http://www.gnuplot.info
   faq, bugs, etc:   type "help FAQ"
   immediate help:   type "help"  (plot window: hit 'h')

Terminal type set to 'aqua'
gnuplot> #! /usr/bin/env gnuplot
gnuplot> reset
gnuplot>
gnuplot> set terminal pngcairo enhanced background "#000000" font "Lato-Light,9" linewidth 1 rounded size 600,200
Terminal type set to 'pngcairo'
set output "/Users/TV/10DayForecast.png"
dataFileForecast = "/Users/TV/10DayForecast.csv"
set datafile separator ','
set timefmt "%Y-%m-%d"
stats dataFileForecast using 2:4 nooutput

freezeWarning = 32.
Yhigh = STATS_max_x + 10.
Ylow = STATS_min_y - 10.
freezeLabel = ((freezeWarning-Ylow) / (Yhigh-Ylow))

unset key
set border linetype rgb "#666666"
set boxwidth 0.25 relative
set style fill transparent solid 0.4
set style line 1 linetype rgb "#0066CC"
set style line 2 linetype rgb "#FFFFFF" pointtype 7 pointsize .5
set style line 3 linetype rgb "#666666"
set style line 4 linetype rgb "#FFFF00"
set style line 5 linetype rgb "#333333"

set label "°" right

unset mxtics
set tics textcolor rgb "#666666"

# X Axis
set xdata time
set xtics format "%a" nomirror
set autoscale xfix
set offsets 12*60*60,12*60*60,0,0

# Y Axis
set ytics format "%2f°" nomirror
set yrange [Ylow:Yhigh]
unset ytics
if (32 > Ylow) set lif (32 > Ylow) set lif (32 > Ylow) set lif (32 > Ylow) set lif (32 > Options are ' background "#000000" enhanced font "Lato-Light,9" fontscale 1.0 size 600, 200  rounded'
gnuplot> set output "/Users/TV/10DayForecast.png"
gnuplot> dataFileForecast = "/Users/TV/10DayForecast.csv"
gnuplot> set datafile separator ','
gnuplot> set timefmt "%Y-%m-%d"
gnuplot> stats dataFileForecast using 2:4 nooutput
gnuplot>
gnuplot> freezeWarning = 32.
gnuplot> Yhigh = STATS_max_x + 10.
gnuplot> Ylow = STATS_min_y - 10.
gnuplot> freezeLabel = ((freezeWarning-Ylow) / (Yhigh-Ylow))
gnuplot>
gnuplot> unset key
gnuplot> set border linetype rgb "#666666"
gnuplot> set boxwidth 0.25 relative
gnuplot> set style fill transparent solid 0.4
gnuplot> set style line 1 linetype rgb "#0066CC"
gnuplot> set style line 2 linetype rgb "#FFFFFF" pointtype 7 pointsize .5
gnuplot> set style line 3 linetype rgb "#666666"
gnuplot> set style line 4 linetype rgb "#FFFF00"
gnuplot> set style line 5 linetype rgb "#333333"
gnuplot>
gnuplot> set label "°" right
gnuplot>
gnuplot> unset mxtics
gnuplot> set tics textcolor rgb "#666666"
gnuplot>
gnuplot> # X Axis
gnuplot> set xdata time
gnuplot> set xtics format "%a" nomirror
gnuplot> set autoscale xfix
gnuplot> set offsets 12*60*60,12*60*60,0,0
gnuplot>
gnuplot> # Y Axis
gnuplot> set ytics format "%2f°" nomirror
gnuplot> set yrange [Ylow:Yhigh]
gnuplot> unset ytics
gnuplot> if (32 > Ylow) set lif (32 > Ylow) set lif (32 > Ylow) set lif (32 > Ylow) set lif (32 > Ylow) sset y2tics format "%2.0f%%" nomirror
gnuplot> set y2range [0:100]
gnuplot>
gnuplot> plot dataFileForecast using 1:6 with impulses linestyle 4 axes x1y2,\
>    dataFileForecast using 1:2 with filledcurves above y1=0 linestyle 5 axes x1y1,\
>     dataFileForecast using 1:2 with points linestyle 2 axes x1y1,\
>     dataFileForecast using 1:2:3 with labels offset 1.75,0.5 textcolor "#FFFFFF" font ",8" axes x1y1,\
>    dataFileForecast using 1:4 with filledcurves above y1=0 linestyle 3 axes x1y1,\
>     dataFileForecast using 1:4 with points linestyle 2 axes x1y1,\
>     dataFileForecast using 1:4:5 with labels offset 1.75,0.5 textcolor "#FFFFFF" font ",8" axes x1y1,\
>     freezeWarning with filledcurve above y1=0 linestyle 1 axes x1y1
                                                                                                                                                                                                                                                                                                         ^
         colorspec option not recognized

gnuplot>     


No doubt that's not how it's done. How do you execute the gnuplot code to make the .png?

Thanks,

Carl

you should to put all gnuplot commands into a file lets say "a.gnu"
then in the directory in a terminal where a.gnu is you type:
gnuplot a.gnu


or
gnuplot pathtoa/a.gnu

Also it seems that the code is for gnuplot 5.x not 4.x

just looking it from 100 feet

Karl

Karl is right about gnuplot 5.0 for a start. It's not required to generate charts in general, there's just a few commands in my script example that require it. Second, if you look at the Python script earlier in this thread, you will see this line at the end:

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system('/opt/local/bin/gnuplot /Library/Application\ Support/Perceptive\ Automation/Indigo\ 6/Scripts/10DayForecast.gp')

The first part points to the gnuplot executable /opt/local/bin/gnuplot and the second part points to the gnuplot file /Library/Application\ Support/Perceptive\ Automation/Indigo\ 6/Scripts/10DayForecast.gp your files may be in a different location than mine.

So I'm running the command that Karl mentioned: gnuplot 10DayForecast.gp ....with the literal paths to the files stuck in front.

You are very close!
Dave

Thanks, but I don't feel very close Lost me in putting the commands into a file...a text file?

Carl

Thanks, but I don't feel very close Lost me in putting the commands into a file...a text file?

Carl

You *are* very close.

There are four files for my example:
10DayForecast.py
10DayForecast.gp
10DayForecast.csv
10DayForecast.png

The 10DayForecast.py file is the python file that generates the data file for charting. Look for a post earlier in this thread with a code block that starts: "#! /usr/bin/env python2.6" and save this code in a text file. I like to keep these files in the Indigo Scripts folder. This is the file that you link to in Indigo and run on a schedule. You'll need to change the paths in the file to point to your preferred locations.

The 10DayForecast.gp file is the Gnuplot file that generates the actual chart image file. Look for the first post in this thread with a code block that starts: #! /usr/bin/env gnuplot and save the code in a text file. I like to keep these files in the Indigo Scripts folder. This pretty much sits in the background and is what generates the chart.

The 10DayForecast.csv file is automatically generated by the Python script. This file contains the data that gets charted. Look in the Python script for the variable that sets the location for this file. The line is right near the top.

The 10DayForecast.png file is automatically generated by the Gnuplot script. This file is the one that you will link to on your control pages.

Dave

Really appreciate all the help and the detailed overview. Still no joy on creating the png yet though.
To make the 10DayForecast.gp I just pasted the code into a TextEdit doc, saved as an rtf and
renamed to .gp. Seems odd, probably incorrect?

It was mentioned earlier that some of the code requires Gnuplot 5.0. I'm not seeing any errors in
the log when I run the python script but maybe that's a problem?

Edit: Tried making the .gp file in Text Wrangler and now it creates the .png but it has no data
and won't open .

Thanks,

Carl

Not a problem Carl.

Don't save it as an RTF file, but rather as plain text. When you make a new Textedit document and paste the code in, go to the menu and select "Format" and then "Make Plain Text". That should fix that issue.

You won't see any gnuplot errors in Indigo because you're running gnuplot outside Indigo itself. One way to see if the gnuplot part of the process is working correctly is to open a terminal window and then navigate to the folder where the script is located and then type gnuplot SCRIPTNAME.

Dave

Ok, here's the return in Terminal.

TV:Users TV$ gnuplot 10DayForecast.gp

plot dataFileForecast using 1:6 with impulses linestyle 4 axes x1y2, dataFileForecast using 1:2 with filledcurves above y1=0 linestyle 5 axes x1y1, dataFileForecast using 1:2 with points linestyle 2 axes x1y1, dataFileForecast using 1:2:3 with labels offset 1.75,0.5 textcolor "#FFFFFF" font ",8" axes x1y1, dataFileForecast using 1:4 with filledcurves above y1=0 linestyle 3 axes x1y1, dataFileForecast using 1:4 with points linestyle 2 axes x1y1, dataFileForecast using 1:4:5 with labels offset 1.75,0.5 textcolor "#FFFFFF" font ",8" axes x1y1, freezeWarning with filledcurve above y1=0 linestyle 1 axes x1y1
^
"10DayForecast.gp", line 54: colorspec option not recognized

Maybe mod the script to accommodate the Gnuplot 4?

Thanks,

Carl

I'm not sure why that's balking to be honest. Let's try replacing the last line with this and see if it makes a difference.

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freezeWarning with filledcurves above y1=0 linestyle 1 axes x1y1

(note it says filledcurves and not filledcurve.)

Nuts, same result. The png is created but still has no data and won't open.

Thanks,

Carl

Hey Dave!

Seems like this should a a new option from within your plug in! (Create Graphic)

Nuts, same result. The png is created but still has no data and won't open.

Thanks,

Carl

THe fact that the PNG is created is a good sign.

Try this for me. Within the Gnuplot script, change all instances of "filledcurves above y1=0" with "lines". For example,

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freezeWarning with lines linestyle 1 axes x1y1

If that doesn't work, we'll take a look at your two script files.

Dave