GetPropertyByName

Returns a handle to the objectTypeProperty or dataTypeProperty as stored inside.
When there is no property with such a name the return value is 0 (note that GetModellingStyle(..) can change this behavior).

Syntax

//
//   Strong typing definition
//
RdfProperty     GetPropertyByName(
                        OwlModel                model,
                        const char              * name
                    );

static  inline  RdfProperty GetPropertyByName(
                                    OwlModel                model,
                                    char                    * name
                                )
{
    return  GetPropertyByName(
                    model,
                    (const char*) name
                );
}


//
//   Weak typing definition
//
int64_t __declspec(dllexport) __stdcall GetPropertyByName(
                                                int64_t                 model,
                                                const char              * name
                                            );

static  inline  int64_t GetPropertyByName(
                                int64_t                 model,
                                char                    * name
                            )
{
    return  GetPropertyByName(
                    model,
                    (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 name

Size: 32 bit / 4 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 (based on pure API calls)

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

#include    "./include/engine.h"
#include    <cmath>

int64_t model = CreateModel();

if (model) {
    //
    //  Classes
    //
    int64_t classArc3D = GetClassByName(model, "Arc3D");

    //
    //  Datatype Properties (attributes)
    //
    int64_t propertyRadius = GetPropertyByName(model, "radius"),
            propertyStart = GetPropertyByName(model, "start"),
            propertySize = GetPropertyByName(model, "size"),
            propertySegmentationParts = GetPropertyByName(model, "segmentationParts");

    //
    //  Instances (creating)
    //
    int64_t myInstanceArc3D = CreateInstance(classArc3D, nullptr);

    double  Pi = 2. * acos(0.),
            radius = 2.1,
            start = 0.,
            size = 2. * Pi;
    int64_t segmentationParts = 36;
        
    SetDatatypeProperty(myInstanceArc3D, propertyRadius, &radius, 1);
    SetDatatypeProperty(myInstanceArc3D, propertyStart, &start, 1);     //  in this case we could also do without, i.e. default value
    SetDatatypeProperty(myInstanceArc3D, propertySize, &size, 1);       //  in this case we could also do without, i.e. default value
    SetDatatypeProperty(myInstanceArc3D, propertySegmentationParts, &segmentationParts, 1);

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