sdaiGetAggrByIterator
Table 1 – Required value buffer depending on valueType (on the example of sdaiGetAggrByIterator but valid for all get-functions)
valueType C/C++ C#
sdaiINTEGER int_t val; int_t val;
sdaiGetAggrByIterator (iterator, sdaiINTEGER, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiINTEGER, out val);
sdaiREAL or sdaiNUMBER double val; double val;
sdaiGetAggrByIterator (iterator, sdaiREAL, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiREAL, out val);
sdaiBOOLEAN SdaiBoolean val; bool val;
sdaiGetAggrByIterator (iterator, sdaiBOOLEAN, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiBOOLEAN, out val);
sdaiLOGICAL const TCHAR* val; string val;
sdaiGetAggrByIterator (iterator, sdaiLOGICAL, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiLOGICAL, out val);
sdaiENUM const TCHAR* val; string val;
sdaiGetAggrByIterator (iterator, sdaiENUM, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiENUM, out val);
sdaiBINARY const TCHAR* val; string val;
sdaiGetAggrByIterator (iterator, sdaiBINARY, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiBINARY, out val);
sdaiSTRING const char* val; string val;
sdaiGetAggrByIterator (iterator, sdaiSTRING, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiSTRING, out val);
sdaiUNICODE const wchar_t* val; string val;
sdaiGetAggrByIterator (iterator, sdaiUNICODE, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiUNICODE, out val);
sdaiEXPRESSSTRING const char* val; string val;
sdaiGetAggrByIterator (iterator, sdaiEXPRESSSTRING, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiEXPRESSSTRING, out val);
sdaiINSTANCE SdaiInstance val; int_t val;
sdaiGetAggrByIterator (iterator, sdaiINSTANCE, &val); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiINSTANCE, out val);
sdaiAGGR SdaiAggr aggr; int_t aggr;
sdaiGetAggrByIterator (iterator, sdaiAGGR, &aggr); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiAGGR, out aggr);
sdaiADB SdaiADB adb = sdaiCreateEmptyADB(); int_t adb = 0; // it is important to initialize
sdaiGetAggrByIterator (iterator, sdaiADB, adb); ifcengine.sdaiGetAggrByIterator (iterator, ifcengine.sdaiADB, out adb);
sdaiDeleteADB (adb);
SdaiADB adb = nullptr; // it is important to initialize
sdaiGetAggrByIterator (iterator, sdaiADB, &adb);
TCHAR is “char” or “wchar_t” depending on setStringUnicode.
(Non-standard behavior) sdaiLOGICAL behaves differently from ISO 10303-24-2001: it expects char* while standard declares int_t.
(Non-standard extension) sdiADB in C++ has an option to work without sdaiCreateEmptyADB and sdaiDeleteADB as shown in the table.
Table 2 - valueType can be requested depending on actual model data.
valueType Works for following values in the model
integer real .T. or .F. .U. other enum binary string instance list $ (empty)
sdaiINTEGER Yes Yes * . . . . . . . .
sdaiREAL Yes Yes . . . . . . . .
sdaiNUMBER Yes Yes . . . . . . . .
sdaiBOOLEAN . . Yes . . . . . . .
sdaiLOGICAL . . Yes Yes . . . . . .
sdaiENUM . . Yes Yes Yes . . . . .
sdaiBINARY . . . . . Yes . . . .
sdaiSTRING Yes Yes Yes Yes Yes Yes Yes . . .
sdaiUNICODE Yes Yes Yes Yes Yes Yes Yes . . .
sdaiEXPRESSSTRING Yes Yes Yes Yes Yes Yes Yes . . .
sdaiINSTANCE . . . . . . . Yes . .
sdaiAGGR . . . . . . . . Yes .
sdaiADB Yes Yes Yes Yes Yes Yes Yes Yes Yes .
Note: sdaiGetAttr, stdaiGetAttrBN, engiGetElement will success with any model data, except non-set($)
(Non-standard extensions) sdaiGetADBValue: sdaiADB is allowed and will success when sdaiGetADBTypePath is not NULL, returning ABD value has type path element removed.
Syntax
public const string ifcenginedll = @"ifcengine.dll"; [DllImport(IFCEngineDLL, EntryPoint = "sdaiGetAggrByIterator")] public static extern Int32 sdaiGetAggrByIterator(int_t iterator, int_t valueType, out bool value); [DllImport(IFCEngineDLL, EntryPoint = "sdaiGetAggrByIterator")] public static extern Int32 sdaiGetAggrByIterator(int_t iterator, int_t valueType, out int_t value); [DllImport(IFCEngineDLL, EntryPoint = "sdaiGetAggrByIterator")] public static extern Int32 sdaiGetAggrByIterator(int_t iterator, int_t valueType, out double value); [DllImport(IFCEngineDLL, EntryPoint = "sdaiGetAggrByIterator")] public static extern Int32 sdaiGetAggrByIterator(int_t iterator, int_t valueType, out IntPtr value); public static Int32 sdaiGetAggrByIterator(int_t iterator, int_t valueType, out string value) { value = null; valueType = getStringType(valueType); if (valueType != 0) { IntPtr ptr = IntPtr.Zero; var ret = sdaiGetAggrByIterator(iterator, valueType, out ptr); if (ret != 0 && ptr != IntPtr.Zero) { value = marshalPtrToString(valueType, ptr); return ret; } } return 0; }