This documentation discusses how to set up a Qt Inventor Target for the Ubuntu 22.04 LTS 64-bit platform. The Qt Inventor Target utilizes the Coin and SoQt libraries from the Coin3D platform.

• Install Qt 5
• Install Coin 3D
• Build Generic Linux Modules
• Build Qt Target Parts

See the Install Qt page for instructions on how to install Qt.

This information describes how to build Qt 4.8.7 from scratch.

Download the Qt 4.8.7 open source, qt-everywhere-opensource-src-4.8.7.tar, package from here. You will need an account with Qt to obtain the open source.

You will need to build the Qt 4.8.7 open source first and then install it to known location that can be used by the Qt toolchain.

Unpack the qt-everywhere-opensource-src-4.8.7.tar package by doing the following:

mkdir <workspace>
cd <workspace>
tar -xvf qt-everywhere-opensource-src-4.8.7.tar

<workspace> is the directory where you plan to build the Qt source. The directory, qt-everywhere-opensource-src-4.8.7, will be created.

Build instructions may be found in the HTML file doc/html/installation.html. Build the Qt 4.8.7 SDK by doing the following:

cd qt-everywhere-opensource-src-4.8.7
./configure -prefix $HOME/bin/Qt/4.8.7

Type 'o' to use the Open Source Edition. Then type 'yes' to accept the license agreement.

This will create a build configuration that should install the build artifacts under $HOME/bin/Qt/4.8.7. You can now run:

make

Install the SDK by using:

make install

Coin and SoQt are requirements for building and running the Rehearsal Player and Inventor targets on a Linux platform. Instructions for building these dependencies can be found at

• Coin v4.0.0: Coin3D Build Instructions For Linux
• SoQt v1.6.0: Coin3D SoQt Build Instructions For Linux

Use the instructions found at SDK Build Environment for Qt Linux Platform to generate the runtime libraries and mastering tools for the Linux platform.

Essentially, import the following Qt projects into the QtCreator IDE and use the Build menu to build and manage the components.

• A qmake project is also available under $MLE_HOME/Core/util/qt/mlutil/mlutil.pro

• A qmake project is also available under $MLE_HOME/Core/math/qt/mlmath/mlmath.pro

• A qmake project is also available under $MLE_HOME/DigitalWorkprint/lib/qt/DWP/DWP.pro
• A qmake project for DwpChecker is available under $MLE_HOME/DigitalWorkprint/lib/qt/DwpChecker/DwpChecker.pro

A qmake project is also available under $MLE_HOME/DigitalPlayprint/lib/qt/DPP/DPP.pro

• A qmake project is also available under $MLE_HOME/DigitalPlayprint/runtime/qt/playprint/playprint.pro

• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/DPPGen/DPPGen.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/gentables/gentables.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/gengroup/gengroup.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/genscene/genscene.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/genmedia/genmedia.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/genmakefile/genmakefile.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/genppscript/genppscript.pro
• A qmake project is also available under $MLE_HOME/DigitalPlayprint/master/qt/gendpp/gendpp.pro

• A qmake project is also available under $MLE_HOME/Parts/props/qt/mleprops/mleprops.pro

You will also need to build components (Actors/Roles/Mediarefs/Sets/Stages) found on that page since those instructions target the Coin 3D Inventor platform.