[Gnuplot-info] public transport plotting

[Wolf D. <dre...@ve...>]

Hello friends,
Guten Morgen,

thanks for hints by Thomas and Hans-Bernhard (da könnten wir ja fast  
auf gut Deutsch weitermachen… (-;)

With your support I found nicely working solutions for my tasks:

This one plots the name of a bus stop left (column 1), the number of  
boarding passengers (column 2) right besides circles, these are  
positioned according to their geographic coordinates (column 3&4).

Confusing is the behaviour of the "offset" command - to find this  
setup took very much trial and error.

schnipp++++++++++++++++++++++++++++++++++++++++++++++++++++
set terminal svg fixed enhanced fsize 1

unset border
unset xtics
unset ytics

set output "Augangsdaten.svg"

plot [4430000:4467900] [681000:668691] "Eingangsdaten.csv" using 3:4: 
((abs($1))*0.05) with points pointtype 6 pointsize variable notitle,  
"Eingangsdaten.csv" using ($3+(abs($1))):4:2 with labels left offset  
0.75,0 notitle, "Eingangsdaten.csv" using ($3-(abs($1))):4:1 with  
labels right offset -0.75,0 notitle
unset output

schnapp++++++++++++++++++++++++++++++++++++++++++++++++++++

The other one plots lines showing passengers travelling from a number  
of stops to other stops.
Columns 1-4 do contain the x,y-coordinates of bus stops, column 5  
contains the number of passengers, these are plotted in the middle of  
each line, columns 6&7 do contain the names of the bus stops at the  
beginning and the end.

Thanks a lot for pointing me to the "with vectors" command - this was  
the breakthrough. The very clou would be a possibility to modulate  
the thickness of vectors by the number of passengers - bus as I do  
have to rework it afterwards anyways, it is not so important.

schnipp ++++++++++++++++++++++++++++++++++++++++++++++++++++

set terminal svg fixed enhanced fsize 1

unset border
unset xtics
unset ytics

set output "Ergebnis.svg"

set xrange [4433000:4467900]
set yrange [689410:658691]

plot "Eingangsdaten.csv" using 1:2:($3-$1):($4-$2) with vectors  
nohead lw .5,  "Eingangsdaten.csv" using (($1+$3)/2):(($2+$4)/2):5  
with labels, "Eingangsdaten.csv" using 1:2:6 with labels,  
"Eingangsdaten.csv" using 3:4:7 with labels

unset output

schnapp ++++++++++++++++++++++++++++++++++++++++++++++++++++

Specialized software which does the same costs 10.000s of Euros…

Thanks a lot and greetings,

Wolf

Am 09.11.2009 um 14:48 schrieb Hans-Bernhard Bröker:

> Wolf Drechsel wrote:
>> Given is a list, each line is containing two sets of x-y- 
>> coordinates.  Each linie should produce one stroke in the plot,  
>> leading from  coordinate set 1 to coordinate set 2.
>
> If all such lines are strictly single (no sequences of joined  
> lines), you might be better off doing a plot "with vectors".
>
> Or you could transform your datafile into a massive list of 'set  
> arrow' commands and load that as a gnuplot script, then make a  
> dummy plot to display them.  Each arrow even gets to have its own  
> width.