CreateProperty

Returns a handle to an on the fly created property.
If the model input is zero or not a model handle 0 will be returned,

Syntax

C++ 32 bit

C++ 64 bit

C# 32 bit

C# 64 bit

//   Visual Studio for Windows
public:
__int64 __declspec(dllexport) __stdcall CreateProperty(
            __int64             model,
            __int64             rdfPropertyType,
            const char          * name
        );

//   Linux, OS-X and non-Visual Studio Windows solutions
public:
int64_t CreateProperty(
            int64_t             model,
            int64_t             rdfPropertyType,
            const char          * name
        );

Property model

Size: 64 bit / 8 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 rdfPropertyType

Size: 64 bit / 8 byte (value)
the type of the rdfProperty, i.e. is it an ObjectProperty (relation) or a DatatypeProperty, in the later case also subdivision towards Boolean, Double, Integer or String.

Property name

Size: 64 bit / 8 byte (reference)
This attribute represents the name of the property; either a datatype property or a relation (given as char array / ASCII). The name is given by the host and the attribute is not changed.

Example

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

#include 

int64_t model = CreateModel();

if (model) {
    //
    //  Classes
    //
    int64_t classCollection = GetClassByName(model, "Collection"),
            classCube = GetClassByName(model, "Cube");

    //
    //  Object Properties (relations)
    //
    int64_t propertyAbcd = CreateProperty(model, OBJECTPROPERTY_TYPE, "abcd"),
            propertyObjects = GetPropertyByName(model, "objects");

    //
    //  Datatype Properties (attributes)
    //
    int64_t propertyLength = GetPropertyByName(model, "length"),
            propertyEfgh = CreateProperty(model, DATATYPEPROPERTY_TYPE_DOUBLE, "efgh");

    //
    //  Instances (creating)
    //
    int64_t instanceCollection = CreateInstance(classCollection, nullptr),
            instanceCube = CreateInstance(classCube, nullptr);

    double  length = 2.,
            efgh = 1.7;

    SetDatatypeProperty(instanceCube, propertyLength, &length, 1);
    SetDatatypeProperty(instanceCollection, propertyEfgh, &efgh, 1);

    assert(GetVolume(instanceCollection, 0, 0) == 0.);

    char    * propertyNameI = nullptr;
    GetNameOfProperty(propertyAbcd, &propertyNameI);

    char    * propertyNameII = nullptr;
    GetNameOfProperty(propertyEfgh, &propertyNameII);

    SetNameOfProperty(propertyAbcd, "InverseRelationControledByThirdParty");

    SetObjectProperty(instanceCube, propertyAbcd, &instanceCollection, 1);
    SetObjectProperty(instanceCollection, propertyObjects, &instanceCube, 1);

    assert(GetVolume(instanceCollection, 0, 0) == 8.);

    char    * propertyNameIII = nullptr;
    GetNameOfProperty(propertyAbcd, &propertyNameIII);

    //
    //  The retrieved property names have the following values 
    //      propertyNameI   :  'abcd'
    //      propertyNameII  :  'efgh'
    //      propertyNameIII :  'InverseRelationControledByThirdParty'
    //

    //
    //  The resulting model can be viewed in 3D-Editor.exe
    //
    SaveModel(model, "c:\\created\\myFile.bin");
    CloseModel(model);
}