The 'GeoShapeExamples' GeoModel example

The GeoShapeExamples example shows you how to use different GeoShape nodes (GeoBox, GeoCone, GeoTorus, GeoTessellatedSolid, ...) and saves them to a local file.

The example program:

1. Builds different example GeoModel shapes
2. Writes the outcome geometry to an SQLite file

Dependencies

Install Qt5

To build and run GeoModel I/O libraries, you must have a working Qt5 installation on your computer. If you are not sure how to install it, please take a look at the Appendix, below.

Quick Instructions

macOS Mojave

To quickly install everything, we use Homebrew. If you don't have installed it on your computer, please install it by following the instructions on its website.

Install the dependencies

Install the dependencies, GeoModelCore and GeoModelIO:

brew tap atlas/geomodel https://gitlab.cern.ch/GeoModelDev/packaging/homebrew-geomodel.git
brew install geomodelcore geomodelio

Build the example code

After that, get the example code and compile the example:

git clone https://gitlab.cern.ch/GeoModelDev/GeoModelExamples.git
mkdir build_geoshapes
cd build_geoshapes
cmake ../GeoModelExamples/GeoShapeExamples
make

Run the example code

Then you can run the example program:

./geoShapeExamples

When the program terminates, you will find a geometry.db file in the build folder. This is a SQLite file containing the dump of the geometry defined in the example C++ code. You can use it to visualize the shapes built in the example code, as explained in the following.

Visualization

You can visualize the outcome of the example code, by opening it with VP1Light. Please refer to the Visualization documentation.

Appendix

Notes on Qt5

To build and run GeoModel I/O libraries, you must have a working Qt5 installation on your computer. Qt5 classes are used for I/O operations with the underlying SQLite daemon, to store/handle data, and to handle logging.

If you are not sure how to install it, please take a look at the notes on Qt5, in the GeoModelIO repository.