Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Bastian Märkisch — Wed, 30 Jul 2025 06:03:48 -0000

Compilation with Qt6 is now supported with the MSYS2/MINGW64 and CLANG64 environments. See also [bugs:#2821].

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Bastian Märkisch — Sat, 26 Jul 2025 14:11:24 -0000

Turns out that compilation with Qt6 is straight forward with some minor tweaks to the Makefile only. But indeed the communciation channel (using Windows specific code) no longer works. Plotting works fine, but keyboard/mouse commands are not sent/received. That was some really complicated code to get right in the first place. I make no promises as to when I will get around looking at this.

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Bastian Märkisch — Sat, 26 Jul 2025 09:15:12 -0000

I agree that switching official Windows builds to Qt6 is eventually a good thing. It still runs fine with Qt5, though, and there's a bit of Windows-specific trickery to enable the wgnuplot GUI and windows, qt, and wxt terminals to work at the same time. That may or may not work with Qt6 atm.
At the minimum, the Makefiles in config/msvc and confing/mingw would need an update.

It is easiest to build gnuplot with MSYS2/MINGW64 on Windows as MSVC library dependencies can be a pain.
(Also, I would recommend using the Windows installer if possible instead of a zip/7z package)

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Enrique — Fri, 25 Jul 2025 19:49:50 -0000

I've noticed that since v5.4.9 Qt6 has been supported, but the recommended usage for Windows users is to get the zip or 7z folder to use the binaries, which still uses Qt5 dll's. I tried the other suggested method for building on Windows (running nmake in the config/msvc directory), but kept running into roadblocks only to discover that it looks like Windows Qt6 support hasn't been included. This is potentially a bad thing for projects that use Windows and Linux, because if Linux user's build with Qt6 there could be potential bugs that won't be able to be identified for Windows user's. Is there a bug ticket or support ticket open for the folders with the binaries to include Qt6 dll's?

Three dimensional geometry, can it plot the steradian and similar useful geometric objects.

De Ja — Wed, 11 Jun 2025 06:52:14 -0000

I wish to plot the steradian similar to what is found on wikipedia. I would like to play with light projections using this object to simulate energy transfer and heating. Can gnuplot make this type of plot if so, can you provide a working example for gnuplot 6.0? Or, make suggestions on how to work with 3d geometry in gnuplot, a textbook would be nice. Or, suggest related software not as desirable.

Trying to use 4 column data for splot

Hiroki Motoyoshi — Wed, 16 Apr 2025 23:44:47 -0000

I think your plot isn’t working as expected due to two key points that need a small adjustment.

1. Use of "rgbcolor variable":
To specify point colors, you should use the linecolor option (abbreviated as lc) together with "rgbcolor variable". So make sure your plot command includes something like:

lc rgbcolor variable

2. Handling of the fourth column in "using":
In your data, the fourth column appears to be a hexadecimal color code in double quotes, like "0xFF0000". Gnuplot treats this as a string. However, when using "lc rgbcolor variable", Gnuplot expects a numeric color value (an integer).

To fix this, you can explicitly convert the string to an integer using "int(strcol(4))", like this:

splot "data" using 1:2:3:(int(strcol(4))) with dots lw 5 lc rgbcolor variable

Alternatively, if you're generating the data yourself, it's even better to write the color codes as unquoted numeric literals:

33.152 116.649 0.6 0xFF0000
33.150 116.654 0.8 0xFD0402
33.152 116.649 0.5 0xFB0804

With that format, the following will work just fine:

splot "data" using 1:2:3:4 with dots lw 5 lc rgbcolor variable

Hope this helps.

Trying to use 4 column data for splot

Randall L Rathbun — Mon, 14 Apr 2025 22:54:24 -0000

I am trying to use splot to display 3 dimension data, with a colorspec in the 4th column.
For example, the first three lines of my "data" file read:

33.152 116.649 0.6 "0xFF0000"
33.150 116.654 0.8 "0xFD0402"
33.152 116.649 0.5 "0xFB0804"

The 4th column is a 24 bit RGB color value.
I have tried to set up the appropriate splot command, but I have been unable to get the plot line to satisfactorily display the data

% splot "data" using 1:2:3:4 with dots lw 5 rgbcolor variable

for example
What would be the correct way to do the splot line?

Thank you for your help.

print data

James Luke — Thu, 06 Mar 2025 23:42:03 -0000

Set the output file

set print "output.txt"

Plot the data and redirect the results to the file

plot "example.txt" u ($1*2000: $2/10000)

Close the output file

set print

IMO I give your answer of your query.

Latest ubuntu version of gnuplot broke my plots

Mark Hahn — Wed, 12 Feb 2025 01:50:27 -0000

I was able to downgrade to 4.6 by building it. Everything now works fine. Should I put in a bug report? If so, how would I do that?

Latest ubuntu version of gnuplot broke my plots

Mark Hahn — Wed, 12 Feb 2025 01:30:44 -0000

I've been running gnuplot for years and it worked great. I just installed the newest version of stable ubuntu and gnuplot broke. I don't know what version my old gnuplot was but it is now 5.4 patchlevel 2. I had Y labels on both sides. Now my right label has disappeared. I haven't changed any gnuplot commands.

My gnuplot only has the ".set y2label" command, and not any other label command. I don't know how it worked but labels appeared on both sides. It's weird that I only had the right side command and now that is the broken one. I've tried adding ".set ylabel".

Can someone give me an idea of how to fix this? I'd be happy to go to an older version like 4.6 but I couldn't find a linux installer for 4.x. Would I have to build it?

Recent posts to Discussion

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Zip and 7z folders only contain Qt5 dll's ever since Qt6 support

Three dimensional geometry, can it plot the steradian and similar useful geometric objects.

Trying to use 4 column data for splot

Trying to use 4 column data for splot

print data

Set the output file

Plot the data and redirect the results to the file

Close the output file

Latest ubuntu version of gnuplot broke my plots

Latest ubuntu version of gnuplot broke my plots