Instance Header API Calls
File IO API Calls
Schema Reading API Calls
Instance Reading API Calls
Instance Writing API Calls
Controling API Calls
Uncategorized API Calls
Geometry Kernel related API Calls
Deprecated API Calls (GENERIC)
Validation
Deprecated API Calls (GEOMETRY)

sdaiGetEntityExtentBN

This call retrieves an aggregation that contains all instances of the entity given. Technically sdaiGetEntityExtentBN will transform into the following call

    sdaiGetEntityExtent(
            model,
            sdaiGetEntity(
                    model,
                    entityName
                )
        );

Syntax

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
public const string ifcenginedll = @"ifcengine.dll";

[DllImport(IFCEngineDLL, EntryPoint = "sdaiGetEntityExtentBN")]
public static extern Int32 sdaiGetEntityExtentBN(int_t model, string entityName);

[DllImport(IFCEngineDLL, EntryPoint = "sdaiGetEntityExtentBN")]
public static extern Int32 sdaiGetEntityExtentBN(int_t model, byte[] entityName);

Property model

Size: 32 bit / 4 byte (value)
The handle to the model. The model handle is static during its existance. Several models can be opened simultaniously within one session. Different models are always independent, threads are allowed to be running on different models simultaniously.

Property entityName

Size: 32 bit / 4 byte (reference)
...

Example (based on pure API calls)

Here you can find code snippits that show how the API call sdaiGetEntityExtentBN can be used.

C++ 32 bit
C++ 64 bit
C# 32 bit
C# 64 bit
using RDF;      //  include at least engine.cs within your solution

void GetColumns(Int64 model)
{
    Int64 ifcColumnInstances = ifcengine.sdaiGetEntityExtentBN(model, "IFCCOLUMN"),
          noIfcColumnInstances = ifcengine.sdaiGetMemberCount(ifcColumnInstances);
    if (noIfcColumnInstances != 0)
    {
        for (Int64 i = 0; i < noIfcColumnInstances; i++)
        {
            Int64 ifcColumnInstance = 0;
            ifcengine.sdaiGetAggrByIndex(ifcColumnInstances, i, ifcengine.sdaiINSTANCE, out ifcColumnInstance);

            string globalId;
            ifcengine.sdaiGetAttrBN(ifcColumnInstance, "GlobalId", ifcengine.sdaiUNICODE, out globalId);

            string name;
            ifcengine.sdaiGetAttrBN(ifcColumnInstance, "Name", ifcengine.sdaiUNICODE, out name);

            string description;
            ifcengine.sdaiGetAttrBN(ifcColumnInstance, "Description", ifcengine.sdaiUNICODE, out description);
        }
    }
}