Precommands needed for getting better pictures/

Dear Matthias, dear all

Tnaks alot!
However, as an example, I ahve
An additional question: After I removed the effects around my domain the Snapshot is still very very large when it comes to the ratio white space/domain. Are there any possibilities to improve this?

I just want to add, on my slides I mention Netgen/NGSolve for creating my simulations. But as written, the wide bar, the logo and cross left and right, the picture simply gets toooo wide!

Hello,

drawnetgenlogo and drawcolorbar do both work as intended, but they only show effect when the scene is rerendered.
This is forced with "Redraw(blocking=True)". Anyway, there was an issue in this function and the redraw was not triggered properly in some cases. This is fixed on the master branch. As a workaround for older versions you can use
For taking screenshots I recommend the following Snapshot function, which is available since about a month: The advantage is that you can select the resolution/aspect ratio but you need to have numpy and pillow (python image library) installed.

Best,
Matthias

Dear Martin,
redrawing with the commands now works perfectly, however gives me a black picture (with the right measurements)
Additionell ngsolve saves everything with the right file-name (except it's black) but I get as a return instead of the usual return
is there a correlation?
Thanks for your time

I have the versions and

There seems to be an issue when calling Snapshot while the GUI is started with the netgen executable. Try running your script with 'python3 myscript.py' instead of 'netgen myscript.py'. The command 'import netgen.gui' also starts the graphical user interface.

and it is solved! THANK you so much!