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Qt SpinBox Widget with Scientific Notation

QScienceSpinBox Since I started using Qt over a year ago I have been asking and looking for a Qt widget that can handle numbers in a scientific notation. Unfortunately Qt Software does not offer such a solution nor is it trivial to implement. With the hints I got in some public web forums I implementet the solution provided here. This widget is derived from QDoubleSpinBox. It uses a decimal value of 1000 (that is more...

free Qt Visual Studio Integration

Volker Wiendl has released a new Version of his VsQtAddin Visual Studio Plugin: Download (Version for VS 2005) In case you have a previous installed version uninstall it first, and make sure no component is remaining on the system. You may also run "C:\Programme\Microsoft Visual Studio 8\Common7\IDE\devenv.exe" /resetaddin VsQtAddIn.Connect /Command File.Exit with your appropriate directory. In this version...

Compilation of Phonon under Windows XP

The original documentation of Trolltech was not sufficient to get me compile the phonon.dll and phonon_ds94.dll under Windows XP. Therefore you find here a description of what I did to get it compile. I use Visual Studio 2005 and the corresponding nmake compiler. The description here thus relates to this compiler. If it works the same with the 2008 Version I do not know. I did not test mingw, but since the Qt docs itself say...

qwt spectrogramm plot with data arrays

The following is a class using the qwt libary to generate a spectrogramm and/or a contour plot. In contrast to the example shipped with qwt it uses a data array instead of a hard coded function. QSpectrogramPlot.h #ifndef QSPECTROGRAMPLOT_H_ #define QSPECTROGRAMPLOT_H_   #include "ExtFunctions.h"   #include <QtGui/QHBoxLayout> #include <QtGui/QWidget>   #include <qwt_plot.h>...

Mathematik mit C++

Nützliche Links… Numerical Recipes Onlineversion des Buches unter http://www.nrbook.com/ Math Tools Mathematische Funktionen in C++ math.h, Standard C library for mathematic...

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