libQGLViewer installation
Unix systems

Mac OS X

Using Qt Creator

Using Xcode

cd path/to/libQGLViewer-2.5.0/QGLViewer
qmake -spec macx-xcode

Using make

cd path/to/libQGLViewer-2.5.0/QGLViewer
qmake -spec macx-g++
make

Next steps

Install the libQGLViewer designer plugin to easily create user interfaces that integrate a QGLViewer using designer.

    Qt installation on Mac

Linux and Unix

tar -xzf libQGLViewer-2.5.0.tar.gz
cd libQGLViewer-2.5.0/QGLViewer

Using Qt Creator

Using make

qmake (see options below)
make
sudo make install [optional]

• The library (libQGLViewer-2.5.0.so) in /usr/lib
• The header files and designer plugin code in /usr/include/QGLViewer
• The documentation and the examples in /usr/share/doc/QGLViewer

qmake [PREFIX=...] [INCLUDE_DIR=...] [LIB_DIR=...] [DOC_DIR=...] [QGLVIEWER_STATIC=yes]

- Param -      - Default value -
PREFIX         /usr
LIB_DIR        PREFIX/lib
INCLUDE_DIR    PREFIX/include
DOC_DIR        PREFIX/share/doc

Next steps

You may also want to install the libQGLViewer designer plugin to easily create user interfaces that integrate a QGLViewer using designer.

    Qt installation on Linux

Try to compile a simple Qt example and check the Qt FAQ page in case of problems. Consider compiling one of the Qt OpenGL examples to test your configuration.

Installation of the designer plugin

Edit the qglviewerPlugin code as indicated to create a similar designer plugin for your derived QGLViewer class.

cd designerPlugin
qmake
make
make install

By default, the plugin is installed in $QTDIR/plugins/designer which is usually a system directory. The make install step hence requires root privileges. With Qt4, you can customize the plugin installation path using the qmake PREFIX=... syntax instead. Do not forget to add this path to your QT_PLUGIN_PATH variable so that designer can find the plugin.

Troubleshooting

• QWidget: Must construct a QApplication before a QPaintDevice.: the library and your program were probably compiled in debug and release modes (or vice-versa). Using the same mode for both should fix this problem (may also appear with static vs dynamic libraries).
• declaration of qtObsolete conflicts with previous declaration: error message. See the mac example section.
• uic: File generated with too recent version of Qt Designer: try to change the version="..." in the first line of the ui file.
• Error while loading shared libraries: add the path to libQGLViewer.so in your LD_LIBRARY_PATH (see above).
• Random or no display: this may come from a bug in your compiler. Try to edit QGLViewer.pro, replace release by debug in the CONFIG line, and re-compile.
• lib3ds: this library is needed to compile the 3dsViewer example. Download the patched lib3ds-1.2.0-1.i686.rpm or the sources (lib3ds-1.2.0-1.src.rpm or lib3ds-1.2.0.tar.gz).
• The indicated type is incomplete error message in qvaluevector.h while compiling keyFrameInterpolator.cpp: include frame.h (see top of keyFrameInterpolator.cpp).
• overloading cannot distinguish from previous declaration: while compiling translate and rotate in Frame.h. Simply comment the const versions of these methods.
• cp: illegal option -- P: this option is very useful but may not be available on your machine. Remove the QMAKE_COPY_FILE modification in QGLViewer.pro
• gcc 2.95: ostream operator << with QString: uncomment the patch in config.h
• Undefined reference to QString::QString (Qt3): add/remove thread in the CONFIG line of QGLViewer.pro and re-compile.
• exception handling disabled: add QMAKE_CXXFLAGS *= -fexceptions in QGLViewer.pro.

Please let me know if you encounter specific installation problems.

Last modified on Thursday, December 19, 2013.