qwt

How to set fixed axis intervals with Qt/QwtPlot?

I want to have a plotting widget in my Qt application. Qwt provides such a widget with QwtPlot. However, I can't find any way to only display a certain part of the complete range of my data. Specifically, I want to display spectrums with a frequency range from 0 to 2^14. For the GUI however, only the audible range from ~20-20k Hz is of ...

How to build Qwt on Windows

Here's what I've done: Downloaded qwt-4.2.0-setup-qt230nc.exe from sourceforge Unpack to C:\Program Files\Qwt Go to Qt Command Prompt Run msvc-qmake.bat. Get the output. Now the lib directory is created, but it's empty. Also tried opening VS project file, but it doesn't converse to VS2008, because there are no vcproj files. I also...

Qwt log10scaleEngine causes weird filling of the curves

Hello. I'm using qwt chart package and have encountered a problem. I've tried to combine few examples from the web-page into one, and log10scaleEngine behaves strange together with curves that are filled with color. The problem is with switching to log10scale: the curves are filled upwards (instead of downwards): 1) linear scale, 2) lo...

QWT/creator dll problems

I have been using qwt for some time, with the MSVC++ integrated versions of QT. Lately, I have been experimenting successfully with the QT Creator SDK, which uses the mingw-g++ tool chain, etc. I can build qwt with no compile or link errors. However, when I try to run any executables (such as the qwt examples) I get an error the pro...

Qt designer plugin does not load in Eclipse CDT

Hi, I have installed the Qwt widgets and they run fine in Qt Creator and QT 4 Designer; however when I run the QT Designer via Eclipse CDT they don't show up. Any ideas what is wrong? I am on x32 Ubuntu 9.04 (Jaunty Jackalope) and running Eclipse CDT 3.4.2 (Ganymede). Note the Qt add in otherwise is working fine and I can create and de...

Qt, VS2005, Qwt - Can't use Q_OBJECT in class derived from Qwt widgets

We've compiled QT 4.6 and QWT 5.2.0 for VS2005. We're trying to derive a class from QwtDial, and the derived class has slots. So, we need to add the Q_OBJECT macro. However, when we do that, the linker chokes out this error: error LNK2001: unresolved external symbol "public: static struct QMetaObject const QwtDial::staticMetaObject" ...

Qwt setAxisScale() seems to lock up application when given numbers with greater precision than 2e-07

I'm using Qwt for some scientific graphing, and I'm working with some fairly small numbers, the smallest being around 1.0e-22. I'm trying to call setAxisScale(xaxis, xmin, xmax) //xmin = 0, xmax = 2.0e-10 But when I do, the application locks up. I haven't found anything in the documentation that refers to a minimum value. Xmin and...

Qwt setAxisScale() locks up application when given numbers less than 2e-07 and greater than 0

I'm using Qwt for some scientific graphing, and I'm working with some fairly small numbers, the smallest being around 1.0e-22. I'm trying to call setAxisScale(xaxis, xmin, xmax) //xmin = 0, xmax = 2.0e-10 But when I do, the application locks up. I haven't found anything in the documentation that refers to a minimum value. Xmin and xm...

windows Forms curve/plot control

I need plot a curve for my data , the source is like : 12, 14, 18, 30, .... I was using Qt Qwt, and need port it to windows forms, are there controls? free of charge? ...

compiling qwt for windows mobile

Hi I have succesfully built Qwt 5.2.1 for use with Qt 4.6.2 on the Win32 platform. I can create and build projects in VS 2005 without problem. However I also want to use Qwt on a Windows Mobile 6.0 platform and I simply cannot get this to work. I have tried a shared build of Qt and Qwt, then using the QWT_DLL preprocessor command and t...

Device Clipping in Qwt

Hey everyone, I was working in qwt, and noticed I was setting device clipping to false. Does anyone know what device clipping is? I couldnt find anything about it really in their documentation. Thanks. ...

using qwt in QT Creator gives error Collect2: ld returned 1 exit status

Starting: C:/Qt/2010.02.1/mingw/bin/mingw32-make.exe -w mingw32-make: Entering directory C:/Qt/2010.02.1/qt/qwt/qwt-5.2.1/textengines/data_plot' C:/Qt/2010.02.1/mingw/bin/mingw32-make -f Makefile.Release all mingw32-make[1]: Entering directoryC:/Qt/2010.02.1/qt/qwt/qwt-5.2.1/textengines/data_plot' linking ....\examples\bin\data_plot.exe...

Not receiving any error but no result also in Qt Creator when trying to use qwt.

Application output is: C:\Qt\2010.02.1\qt\qwt\qwt-5.2.1\examples\bin\graph.exe exited with code -1073741515 Compile Output is: Running build steps for project graph... Configuration unchanged, skipping QMake step. Starting: C:/Qt/2010.02.1/mingw/bin/mingw32-make.exe -w mingw32-make: Entering directory C:/Qt/2010.02.1/qt/qwt/qwt-5.2.1/e...