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STEP-file is a widely used [1] data exchange form of STEP. ISO 10303 can represent 3D objects in computer-aided design (CAD) and related information. Due to its ASCII structure, a STEP-file is easy to read, with typically one instance per line. The format of a STEP-file is defined in ISO 10303-21 Clear Text Encoding of the Exchange Structure. [2]
The basis for STEP was the Product Data Exchange Specification (PDES), which was initiated during the mid-1980's and was submitted to ISO in 1988. [4] [5] The Product Data Exchange Specification (PDES) was a data definition effort intended to improve interoperability between manufacturing companies, and thereby improve productivity.
STEP - also known as ISO 10303-21 - has both advantages and disadvantages over IDF. If both MCAD and ECAD software support STEP, both programs can interchange more detailed models (at the cost of increased file size). Step models that are rendered correctly in the ECAD software can cause problems in the MCAD [citation needed].
Most AICs are specializations in the geometric area. AICs did not exist back in 1994 when the first release of STEP got published. But when the 2nd generation of APs grows up it becomes clear that APs do not only share not only the IRs but also a lot of specializations. AICs are a big step towards AP interoperability. Part 501 - Edge-based ...
IFC defines multiple file formats that may be used, supporting various encodings of the same underlying data. [7] IFC-SPF is a text format defined by ISO 10303-21 ("STEP-File"), where each line typically consists of a single object record, and having file extension ".ifc". This is the most widely used IFC format, having the advantage of compact ...
The files use Microsoft's Rich Text Format (RTF) with special STEP tags added. [2] While not fully open format, as was sometimes claimed, the specifications have been publicly released, enabling third parties to write their own tools to create, edit, or view STEP resources. There are restrictions on the use of the logo, and commercial use of ...
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This is an overview of notable viewers for files, that are produced by Computer aided design (CAD), Computer-aided manufacturing (CAM) and Computer-aided engineering (CAE) applications. Comparison of notable CAD/CAM/CAE file viewers