STEP
The STEP interface reads STEP files produced in accordance with STEP Application Protocol 214 (Conformance Class 2 both CD and DIS versions of schema) and translates them to Open CASCADE Technology models. STEP Application Protocol 203 is also supported.
The STEP interface also translates OCCT models to STEP files. STEP files that are produced by this interface conform to STEP AP 203 or AP 214 (Conformance Class 2, either CD or DIS version of the schema) depending on the user’s option.
Basic interface reads and writes geometrical, topological STEP data and assembly structures.
The interface is able to translate one entity, a group of entities or a whole file.
Other kinds of data such as colors, validation properties, layers, names and the structure of assemblies can be read or written with the help of XDE tools - STEPCAFControl_Reader and STEPCAFControl_Writer.
To choose a translation mode when exporting to a STEP format, use STEPControl_STEPModelType.
There is a set of parameters that concern the translation and can be set before the beginning of the translation.
Note
a STEP model is a STEP file that has been loaded into memory.
all references to shapes indicate OCCT shapes unless otherwise explicitly stated.
a root entity is the highest level entity of any given type, i.e. an entity that is not referenced by any other one.
It is possible to learn more about the STEP interface from STEP User's guide
See also: our web site at E-learning and Training.