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2016•Unpublished venueRequires access

A new Geant4 modeling solution based on CAD geometries

Yuefeng Qiu, Lei Lu, U. Fischer

Open publisher page 2 citations

Abstract

A new software system has been developed for converting CAD (Computer-Aided Design) models to Geant4 geometries. It converts CAD to two solids types - Constructive Solid Geometry (CSG) and tessellated solids. The CAD-to-CSG conversion is based on a newly developed half-space solid type, which represents exactly the CAD solids using analytical surfaces. The CAD conversion to the tessellated solids uses triangular facets to approximate the CAD solids. These two solid types can be hybrid used in one Geometry Description Mark-up Language (GDML) file. In addition, the system provides comprehensive CAD modeling capabilities, including CAD viewing, organizing, modification, etc. It has been verified using complex test cases, and has been distributed as an open source code.

About this research paper

What this paper is about

A new software system has been developed for converting CAD (Computer-Aided Design) models to Geant4 geometries. It converts CAD to two solids types - Constructive Solid Geometry (CSG) and tessellated solids. The CAD-to-CSG conversion is based on a newly developed half-space solid type, which represents exactly the CAD solids using analytical surfaces. The CAD conversion to the tessellated solids uses triangular facets to approximate the CAD solids. These two solid types can be hybrid used in one Geometry Description Mark-up Language (GDML) file. In addition, the system provides comprehensive CAD modeling capabilities, including CAD viewing, organizing, modification, etc. It has been verified using complex test cases, and has been distributed as an open source code.

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OpenAlex reports 2 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A new software system has been developed for converting CAD (Computer-Aided Design) models to Geant4 geometries. It converts CAD to two solids types - Constructive Solid Geometry (CSG) and tessellated solids. The CAD-to-CSG conversion is based on a newly developed half-space solid type, which represents exactly the CAD solids using analytical surfaces. The CAD conversion to the tessellated solids uses triangular facets to approximate the CAD solids. These two solid types can be hybrid used in one Geometry Description Mark-up Language (GDML) file. In addition, the system provides comprehensive CAD modeling capabilities, including CAD viewing, organizing, modification, etc. It has been verified using complex test cases, and has been distributed as an open source code.

Key concepts: Constructive solid geometry, CAD, Computer Aided Design, Solid modeling, Software, Computer science, Engineering drawing, Constructive

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