[SOLVED] QWT 6.0 library in QT
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Hi,
I have downloaded QWT 6.0 from "svn co https://qwt.svn.sourceforge.net/svnroot/qwt/branches/qwt-6.0
":http://qwt.sourceforge.net/ . I am able to run the sample example that are provide within the same folder.
But I need to use the same library for my projects. So i created a new project and copied the program tvplot from the qwt examples.I then added the following code in my .pro file
@INCLUDEPATH += D:\Qwt\include
DEPENDPATH += D:\Qwt\libLIBS += -LD:\Qwt\lib
win32 {
CONFIG(debug, debug|release) {
LIBS += -lqwtd
} else {
LIBS += -lqwt
}
}@But when i compile and run it gives error "cannot open include file qmemarray.h" . I have searched on the net for the header files as well as how to setup qwt libraries. But didnt get this working on windows 7.
Thanks for your time :)
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QMemArray is a Qt3 relic. QVector would be the closest Qt4 equivalent. I have no idea why QWT tries to use it still... However, a quick search on "QMemArray Qwt" gives quite a number of hits. Perhaps your answer is among them?
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Hi,
Thanks for the reply Andre. I searched for "QMemArray Qwt" and have gone through all the links and solution in the first page. However I tried a different approach. I created a new Project in the same path where i have copied qwt e.g c:\qwt-6.0\examples. And then in the .pro file of my project i included@include( $${PWD}/../examples.pri )@
Which is specified in all the .pro file in the example folder of QWT.
It work and display the mainwindow with the charts. But if i create a folder in any other directory and then write
@LOCATION = C:\qwt-6.0\examples
include( $${LOCATION}/examples.pri )@
It includes the files but shows the same error cannot include qmemarray.h
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Soumitra, did you find a reference to qmemarray.h in the source for QWT? I have QWT 6.0.1 source and I could not find a reference to this header file within the whole source tree.
Possibly the problem is triggered by something else. -
Hi Koahnig,
I couldnt find any reference to qmemarray.h . I searched for the file in the source folder but couldnt find one . When i click on the compiler error it opens qwt_array.h
@/* -- mode: C++ ; c-file-style: "stroustrup" -- *****************************
- Qwt Widget Library
- Copyright (C) 1997 Josef Wilgen
- Copyright (C) 2002 Uwe Rathmann
- This library is free software; you can redistribute it and/or
- modify it under the terms of the Qwt License, Version 1.0
*****************************************************************************/
// vim: expandtab
#ifndef QWT_ARRAY_H
#define QWT_ARRAY_H#include "qwt_global.h"
/*!
\def QwtArray
Aliases QArray (Qt-2.x) and QMemArray (Qt-3.x) to QwtArray
*/
#ifdef QWT_NO_MEMARRAY
#include <qarray.h>
#define QwtArray QArray
#else
#include <qmemarray.h> <---Here this file is included.
#define QwtArray QMemArray
#endif
#endif@And even if i add qmemarray.h (source code from google search) Then the error changes to some other header file missing.
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In which folder do you have qwt_array.h ?
I do not find this in my source tree? -
Hi koahnig,
Sorry I was linking to the old library which i downloaded from "qwt":http://sourceforge.net/projects/qwt/. I switched the path to the current source library@INCLUDEPATH += C:\qwt-6.0\src
DEPENDPATH += C:\qwt-6.0\libLIBS += -LC:\qwt-6.0\lib@
This works now for my project created in some other path. But I have written
@LOCATION = C:\qwt-6.0\examples
include( $${LOCATION}/examples.pri )@
in my .pro which refers to the .pri file in qwt-6.0 source folder. This is working. Is this the right approach ?
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If it compiles and you see no other issues, I would assume that it is correct. I am using QWT with MSVC and the include path is simply directed to src folder.
I am rarely using .pro and .pri files under windows. -
Thanks for the help. As of now this is working but if there is any problem i'll come back again :)
I also need to implement the QwtPlot3D library too. I'll discuss that in other thread.Thanks for your time :)