Hello everyone,
i was trying to get Qwt running properly on my Windows7 64bit PC. After hours of trying to find the right way to do this i wrote a step by step install and test manual.
I would appreciate a comment of Uwe if this is the right way to do it, especially on the systems path and user variables.
@Uwe: I also hope this guide saves you some time explaining people how to install qwt.
Lets start:
1. Download and install QT 5.0.1 (MinGw) to: "C:\Qt\Qt5.0.1"
2. Download and extract Qwt 6.1 RC3 to: "C:\qwt-6.1-rc3"
3. Add "C:\Qt\Qt5.0.1\5.0.1\mingw47_32\bin" to your systems path variable (qmake.exe is located here)
4. Add "C:\Qt\Qt5.0.1\Tools\MinGW\bin" to your systems path variable (mingw32-make.exe is located here)
5. Open a command line (cmd) and navigate to: "C:\qwt-6.1-rc3"
6. Type: "qmake" (This command won't prompt any msg so don't worry)
7. Type: "mingw32-make" (Compiles the whole project with examples; this will take a while so be patient)
8. Type: "mingw32-make install" (This installs qwt to the directory set in "C:\qwt-6.1-rc3\qwtconfig.pri"; the default location is "C:/Qwt-$$QWT_VERSION-rc3" -> "C:\Qwt-6.1.0-rc3\")
9. Add "C:\Qwt-6.1.0-rc3\lib" to your systems path variable
10. Add a User variable named "QT_PLUGIN_PATH" with the following path "C:\Qwt-6.1.0-rc3\plugins"
11. Add a User variable named "QMAKEFEATURES" with the following path "C:\Qwt-6.1.0-rc3\features"
12. Start Qt Creator
13. Create a new project: File -> New File or Project ... -> Applications -> Qt Gui Application -> Choose
14. Name it "Test"
15. Create the project in the following directory: "C:\workspace"
16. Open file "Test.pro"
17. Add "Config += qwt" at the bottom
18. Open the main.c of the project and delete all its content.
19. Paste the following in the main.c (This is the qwt example "simpleplot"):
#include <qapplication.h>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <qwt_plot_grid.h>
#include <qwt_symbol.h>
#include <qwt_legend.h>
int main( int argc, char **argv )
{
plot.setTitle( "Plot Demo" );
plot.setCanvasBackground( Qt::white );
plot.
setAxisScale( QwtPlot::yLeft,
0.0,
10.0 );
grid->attach( &plot );
curve->setTitle( "Some Points" );
curve->setPen( Qt::blue, 4 ),
curve
->setRenderHint
( QwtPlotItem::RenderAntialiased,
true );
curve->setSymbol( symbol );
curve->setSamples( points );
curve->attach( &plot );
plot.resize( 600, 400 );
plot.show();
return a.exec();
}
#include <qapplication.h>
#include <qwt_plot.h>
#include <qwt_plot_curve.h>
#include <qwt_plot_grid.h>
#include <qwt_symbol.h>
#include <qwt_legend.h>
int main( int argc, char **argv )
{
QApplication a( argc, argv );
QwtPlot plot;
plot.setTitle( "Plot Demo" );
plot.setCanvasBackground( Qt::white );
plot.setAxisScale( QwtPlot::yLeft, 0.0, 10.0 );
plot.insertLegend( new QwtLegend() );
QwtPlotGrid *grid = new QwtPlotGrid();
grid->attach( &plot );
QwtPlotCurve *curve = new QwtPlotCurve();
curve->setTitle( "Some Points" );
curve->setPen( Qt::blue, 4 ),
curve->setRenderHint( QwtPlotItem::RenderAntialiased, true );
QwtSymbol *symbol = new QwtSymbol( QwtSymbol::Ellipse,
QBrush( Qt::yellow ), QPen( Qt::red, 2 ), QSize( 8, 8 ) );
curve->setSymbol( symbol );
QPolygonF points;
points << QPointF( 0.0, 4.4 ) << QPointF( 1.0, 3.0 )
<< QPointF( 2.0, 4.5 ) << QPointF( 3.0, 6.8 )
<< QPointF( 4.0, 7.9 ) << QPointF( 5.0, 7.1 );
curve->setSamples( points );
curve->attach( &plot );
plot.resize( 600, 400 );
plot.show();
return a.exec();
}
To copy to clipboard, switch view to plain text mode
20. Rightclick the project and select "run qmake..."
21. Now run the project. It should compile without errors and run.
Remember this:
For your own projects you now only have to add "Config += qwt" to your *.pro file to get Qwt running.
I hope this tutorial helps to do your first steps with QT + Qwt.
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If this tutorial works and some admin is fine with it, i would suggest to mark it as a sticky thread.
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