API Reference > Functions > SDAI > sdaiGetEntityExtentBN Function
sdaiGetEntityExtentBN Function
Syntax
C++
DAI_EXPORT SdaiSet sdaiGetEntityExtentBN(SdaiModel model, SdaiString name);

sdai.h

Parameters 
Description 
SdaiModel model 
[in] The model to get entities collection from.  
entity 
[in] The entity definition to find entity instances.  

A set of entity instances of the type which is derived from the entity.

Retrieves a collection of entity instances that are subtypes of the entity type.

The function is case insensitive.

SdaiSet indexedPolycurves = sdaiGetEntityExtentBN(model, "ifcindexedpolycurve"); SdaiInteger cnt = sdaiGetMemberCount(indexedPolycurves);

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