Null Class Reference

This reference page is linked to from the following overview topics: Use the Object Model instead of GetValue and SetValue.

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#include <xsi_null.h>

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Class Description

The Null object is a specialized X3DObject object and represents a point in space with no dimensions. Nulls can be used to set constraints, organize objects into hierarchies, and so on.

See also:

Light

Example:

                using namespace XSI;
                Application app;
                Model root = app.GetActiveSceneRoot();

                Null myNull;
                root.AddNull( L"MyNull", myNull );

                app.LogMessage( myNull.GetFullName() );

Inheritance diagram for Null:

List of all members.

Public Member Functions
	Null ()
	~Null ()
	Null (const CRef &in_ref)
	Null (const Null &in_obj)
bool	IsA (siClassID in_ClassID) const
siClassID	GetClassID () const
Null &	operator= (const Null &in_obj)
Null &	operator= (const CRef &in_ref)

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Constructor & Destructor Documentation

Null

(

)

Default constructor.

~Null

(

)

Default destructor.

Null

(

const CRef &

in_ref

)

Constructor.

Parameters:

in_ref

constant reference object.

Null

(

const Null &

in_obj

)

Copy constructor.

Parameters:

in_obj

constant class object.

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Member Function Documentation

bool IsA

(

siClassID

in_ClassID

)

const [virtual]

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Returns true if a given class type is compatible with this API class.

Parameters:

in_ClassID

class type.

Returns:

true if the class is compatible, false otherwise.

Reimplemented from X3DObject.

Reimplemented in CameraRig, LightRig, and Rig.

siClassID GetClassID

(

)

const [virtual]

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Returns the type of the API class.

Returns:

The class type.

Reimplemented from X3DObject.

Reimplemented in CameraRig, LightRig, and Rig.

Null& operator=

(

const Null &

in_obj

)

Creates an object from another object. The newly created object is set to empty if the input object is not compatible.

Parameters:

in_obj

constant class object.

Returns:

The new Null object.

Null& operator=

(

const CRef &

in_ref

)

Creates an object from a reference object. The newly created object is set to empty if the input reference object is not compatible.

Parameters:

in_ref

constant class object.

Returns:

The new Null object.

Reimplemented from X3DObject.

Reimplemented in CameraRig, LightRig, and Rig.

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The documentation for this class was generated from the following file:

• xsi_null.h