| Open CASCADE Technology 7.9.3 |

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OCCTOverview Directory Reference

## Detailed Description

The Overview Qt application provides code snippets for basic usage of C++ API of various OCCT functionality. The samples are organized in several categories according to relevant module of OCCT:

- Geometry
- Topology
- Triangulation
- DataExchange
- OCAF
- Viewer 2d
- Viewer 3d

Each sample presents geometry view, C++ code fragment and sample output window. This sample is described in the Novice guide for new users.

# 1. Contents

The directory samples/qt/OCCTOverview contains the folders and files of the Qt OCCT Overview application:

- Files OCCTOverview.pro and OCCTOverview0.pro are Qt project files.
- File genproj.bat to denerate MS Visual Studio project.
- File msvc.bat to run MS Visual Studio project.
- File make.sh to build of the application on Linux.
- Files run.bat and run.sh to run the application.
- Files env.bat and custom.bat are called from genproj.bat, msvc.bat, run.bat. File custom.bat should be defined by user to provide paths to QT directory and OCCT installation directory (see custom.bat.template).
- src and res directories provide source and resources files.

The directory samples/OCCTOverview/code contains the source code of samples.

# 2. How to build Qt OCCT Overview application

- Edit custom.bat file. It is necessary to define following variables:
  - QTDIR path to where Qt is installed
  - CASROOT path to where Open CASCADE binaries are installed.
- Build the application:
  - On Windows:
    - Generate project files: > genproj.bat vc141 win64 Debug
    - Launch MS Visual Studio: > msvc.bat vc141 win64 Debug
    - Build the application using MS Visual Studio.
  - On Linux: Launch building of the application by make.sh script

# 3. Running the application

- On Windows:
  > run.bat vc141 win64 Debug
- On Linux:
  > run.sh

# 4. How to use the OCCT Overview application:

- To select a samples category use the Category menu.
- To run concrete sample using the menu to the right of the category menu.
- See the source code in the Sample code window. Сopy the code if needed.
- See the sample output in the Output window if it exist.
- Zoom, pan and rotate a geometry in the mail window using the mouse.

See hints how to use the mouse in down hints panel.