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Technical information on how to visualize JT data using the JT Open Toolkit




is there any information available on how to interpret the different entities, hierarchies, and parts for visualization? 

We somehow seem to misunderstand:


  • Transformations (translations, scales, rotations) - i.e. are they persisted in (parent) object space or world space? 
  • Units specified throughout the hierarchies - how to cope when no units are assigned? How to cope with units configured on the parent hierarchy element?
  • How to work with instances: how should we decide on which instance (or non-instance) to show.

Currently, we are able to visualize individual parts (for example TriangleStrips) but combined as a whole, they do not show up correctly. Most probably due to our lack of understanding the above aspects :-). 


As far as we can see the documentation doesn't provide too much insight on the above so all hints & tips on where to find relevant information or how to interpret it are very much appreciated.


Many thanks from the rainy Germany,


Peter Vrenken

What is JT?

JT is the World’s Most Widely Used 3D File Format for PLM

JT is the common language of PLM and is the world’s most widely used 3D format. JT is the first ISO International Standard ( IS 14306-1) for 3D visualization and collaboration. Compact and accurate, JT is used throughout the product development lifecycle in all major industries to communicate the critical design information typically locked up inside a CAD file.

Siemens PLM Software customers rely on JT to be the most robust 3D visualization format available.

JT Open Factsheet
JT Open Member Resources
JT Open Documentation Technology
JT Open File Format Technology
JT Open Toolkit

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