updates by me (github.com/nretza)

Since a CAD -> gdml converter was needed for GEANT4 simulations of P-ONE, multiple options were evaluated. Reviving this repo and making small adjustments seems to be the most feasible option.

setting it up

1. clone the repo
2. make sure the stuff in requirements.txt is installed and running
3. you are good to go

usage

P-ONE geometry files exist in a Solidworks environment. This converter takes in *.step files, so make use of Solidworks export function to export the geometry to *.step. Check out The Solidworks documentation for more information.

Run GUIMesh.py, import the *.step file and set the necessary material information. This is a well done visual guide through the program by its original author Marco Gui Alves Pinto for reference.

IMPORTANT: In order to allow an errorless conversion, make sure to resolve all subassemblys in Solidworks. The exported Step file should only contain Part objects

changes made

• updated for python 3
• fixed bugs in material manager
• autodetect freecad in commonly used install dirs
• converter adjustments to properly handle *.step files coming from Solidworks
• fixed bugs in gdml output that prohibited direct import in GEANT4

GUIMesh (original README)

Copyright (c) 2018 Marco Gui Alves Pinto mail:[email protected]

This program is distributed under the terms of the GNU General Public License 3

Software Description

GUIMesh is a Graphical User Interface that converts STEP geometries to GDML format allowing to import this geometries into Geant4

Citation / Reference

GUIMesh is published in: https://doi.org/10.1016/j.cpc.2019.01.024. It has a full description of the program as well as all the tests done. You can request me the document via e-mail. Please cite the paper if you found GUIMesh useful for your work.

Dependencies

GUIMesh requires:

• UNIX distribution or Windows (R)
• Python 2.X with TKinter extension
• FreeCAD v0.15 and 0.16
• Geant4 - although Geant4 is not necessary to run GUIMesh, its output are intended to be imported by it. Versions >10 are recomended.

Note: Since GUIMesh is a python script only its dependencies must be installed.

File description

• GUIMesh.py - Main and only source code
• Documents - Folder with "GUIMesh User Manual.pdf", a guide on how to run GUIMesh found in the Documents directory
• GUIMeshLibs - folder containing libraries used in GUIMesh
• Materials - folder which should be used to save materials in a database
• STEP Files - folder with STEP geometries used in all tests
• COPYING - License disclosure