How to generate image file with C++ gnuplot?

Question

I am trying to implement Gnuplot on C++ to create a heat map. Once I run the following code, it opens a new gnu plot window with the plot on it. Can't I just write the graph as image file instead opening it on new window ?

Code:

Gnuplot gp;
gp << "unset key\n";
gp << "set pm3d\n";
// gp << "set hidden3d\n";
gp << "set view map\n";
gp << "set xrange [ 0 : 10 ] \n";
gp << "set yrange [ 0 : 10 ] \n";
gp << "splot '-'\n";
gp.send2d(frame);

math.utk.edu/~vasili/refs/How-to/gnuplot.print.html

Drop
– Drop

2016-05-13 05:15:42 +00:00
Commented May 13, 2016 at 5:15 — Drop
– Drop, Commented May 13, 2016 at 5:15

LookAheadAtYourTypes · Accepted Answer · 2016-05-13 06:39:21Z

1

Just add output. Below code should work for you:

Gnuplot gp;
gp << "unset key\n";
gp << "set pm3d\n";
// gp << "set hidden3d\n";
gp << "set view map\n";
gp << "set xrange [ 0 : 10 ] \n";
gp << "set yrange [ 0 : 10 ] \n";
gp << "set terminal png \n";
gp << "set output 'b.png' \n";
gp << "splot '-'\n";
gp.send2d(frame);

answered May 13, 2016 at 6:39

LookAheadAtYourTypes

1,7292 gold badges20 silver badges36 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

nbremond · Accepted Answer · 2016-05-13 06:41:02Z

0

Add the following lines to your script :

gp << "set terminal png\n";
gp << "set output 'my_file.png'\n";

There are other formats available, you can see this page to get more informations.

answered May 13, 2016 at 6:41

nbremond

11 bronze badge

Collectives™ on Stack Overflow

How to generate image file with C++ gnuplot?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related