Considerations for implementation of GDMLTessellated Objects

Requirement

• GDML Tessellated Objects support triangular and Quad Facets

Implementation

• GDML object are implemented as Part::PythonFeatures
• Creation of Geometry is by Python

• Challenge for Tessellations with a large number of facets

• Initial import of OBJ is via python again slow

PartPythonFeature Use of FC Mesh

• Can import with Mesh Workbench i.e.C++ but conversion to Part::Shape slow

Import of OBJ as FC Mesh

• Loading now faster as via Mesh Workbench which is written in C++
• Mesh does not support allocation of Material or Colour - So

• Pre-process file to build a dictionary of Names, Materials
• Names, Materials applied to loaded FC Meshes
• Allocation of GDMLMaterial vis Mapping
• Can also select a single GDMLMaterial before import and will be applied to all
• Colour is currently random ( Provision in Mapping Window }