Thanks a lot! Your helpful suggestions solved my issue.
Best regards
Hussam
Guess overloading QwtRasterData::interval is what you are looking for.
You might also want to implement QwtRasterData::pixelHint to reduce the number of calculations.
Note that returning qQNaN is...
You can control the position using the margin property of the item and the alignment ( QwtText::renderFlags ) of the text.
If this is not good enough you can also overload...
I replaced x by -x in several lines that display walls. It is working.
fulgorit 13th March 2025, 10:45Hi,
I am currently working on a project where I need to create a spectrogram using QwtPlotSpectrogram. My frequency range is from 9.1 kHz to 19.9 kHz with a bandwidth of 0.2 kHz. I am using...
Qt Centre is a community site devoted to programming in C++ using the Qt framework developed at The Qt Company.
If you have any problems with Qt or its usage, you can get help from the members of Qt community on our forum.
Don't forget to check out our links section for more Qt resources.
Qt is a cross-platform application and UI framework. Using Qt, you can write web-enabled applications once and deploy them across desktop, mobile and embedded operating systems without rewriting the source code.
Qt 6: Simulating Multi-Touch (Pan & Zoom) - Migration from Qt 5
19th February 2025 08:48 by Kaviara