A GTlab module to enable the creation of graph-based workflow.
IntelliGraph is based on QtNodes by paceholder et al. (version 2.2.2). QtNodes was adapted and extended in various ways to deeply integrated a graph-based workflow into the GTlab Framework.
Following high-level features were added and changes were made:
- Added ability to group nodes.
- A dedicated graph execution model handles the correct execution of nodes and manages the transfer of data btween nodes:
- Nodes are triggered only once all predecessors have been evaluated.
- The evaluation state of nodes is remembered
- Manages the data a node requires and outputs
- Nodes can be evaluated in a separate thread
- Each node can have its own painter and geometry object and thus be styled individually.
- Connections can be renderes in various shapes (Cubic, Rectangle and Straight).
- Nodes and their graphical representation are loosly coupled, allowing IntelliGraphs to be executed without a graphical user interface.
- Graphs are serialized using GTlab's Memento System instead of exporting the data to JSON.
The largest portion of the code is licensed under the BSD 3-Clause License.
Smaller thirdparty party code part of code base uses other permissive licenses, such as the
BSD and MIT licenses. Please review the directory LICENSES and .reuse
for a full overview on all licensed used.
A working GTlab installation is required. This includes GTlab and the GTlab Logging library. In addition, the Qt toolkit need to be installed to build the intelligraph module.
| Library | Version | Bundled | Where to get |
|---|---|---|---|
| Qt | 5.15.x | No | https://download.qt.io/official_releases/qt/ |
| GTlab Core + Logging | >= 2.0 | No | https://github.com/dlr-gtlab/gtlab-core |
The intelligraph module requires a recent CMake (>3.15) to build. The configuration and build process is
similar to other CMake builds:
cmake -S . -B build_dir -DQt5_DIR=<path/to/cmake/Qt5> -DCMAKE_PREFIX_PATH=<path/to/gtlab_install> -DCMAKE_INSTALL_PREFIX=<path/to/gtlab_install>
cmake --build build_dir
cmake --build build_dir --target install