Public Member Functions
Layer Class Reference

## Detailed Description

The Layer is a self-contained collection of SceneItem objects. It can be nested one level to provide Layer Group functionality.

Layers are exclusive group containers. An 3D object in the scene must belong to a layer, but can only belong one at a given time. This can be changed by moving objects from layer to layer.

Layers can be nested on level to provide layer grouping, meaning that users can control a set of layers in a non-destructive way. This can improve efficiency by quickly hiding/showing objects from a set of layers rather than having to change them and reset them afterward.

You can create a new layer with the CreateLayer command, and access a scene's layers via the Scene.

See also:
  Scene::GetLayers, Scene::GetActiveLayer, CreateLayer

Example:

            using namespace XSI;
            Application app;

            Project project = app.GetActiveProject();
            Scene scn = project.GetActiveScene();

            Layer myLayer = scn.GetActiveLayer() ;

            using namespace XSI;
            CValueArray args(2);
            CValue outArg;
            args[0] = CValue( L"" );
            args[1] = CValue(L"MyNestedLayer");
            app.ExecuteCommand( L"CreateLayer", args, outArg );
            CValueArray result = outArg;
            Layer NestedLayer = result[0];

            myLayer.AddLayer( NestedLayer );
            app.LogMessage(L"Number of sub-Layers of myLayer is: " + myLayer.GetLayers().GetCount() );

            myLayer.AddLayer( myLayer );

            NestedLayer.AddLayer( myLayer );

            myLayer.RemoveLayer( NestedLayer );
            app.LogMessage(L"Number of sub-Layers of myLayer is: " + myLayer.GetLayers().GetCount() );

`#include <xsi_layer.h>`

Inheritance diagram for Layer:
[legend]

List of all members.

## Public Member Functions
| Layer ()
| ~Layer ()
| Layer (const CRef &in_ref)
| Layer (const Layer &in_obj)
bool | IsA (siClassID in_ClassID) const
siClassID | GetClassID () const
Layer & | operator= (const Layer &in_obj)
Layer & | operator= (const CRef &in_ref)
CRefArray | GetLayers () const
CStatus | AddLayer (const Layer &in_member)
CStatus | RemoveLayer (const Layer &in_member)

## Constructor & Destructor Documentation

Layer | ( |  | ) |

Default constructor.

~Layer | ( |  | ) |

Default destructor.

Layer | ( | const CRef & | in_ref | ) |

Constructor.

Parameters:

  in_ref | constant reference object.

Layer | ( | const Layer & | in_obj | ) |

Copy constructor.

Parameters:

  in_obj | constant class object.

## Member Function Documentation

bool IsA | ( | siClassID | in_ClassID | ) | const`[virtual]`

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 Group.

siClassID GetClassID | ( |  | ) | const`[virtual]`

Returns the type of the API class.

Returns:
  The class type.

Reimplemented from Group.

Layer& operator= | ( | const Layer & | 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 Layer object.

Layer& 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 Layer object.

Reimplemented from Group.

CRefArray GetLayers | ( |  | ) | const

property Layers

Returns the array of the sub layers parented under this layer.

Returns:
  The layer children

CStatus AddLayer | ( | const Layer & | in_member | ) |

property AddLayer Adds an existing layer. The existing layer will be removed from its current owner (LayerContainer or another Layer).

Parameters:

  in_member | The layer to add as a child.

CStatus RemoveLayer | ( | const Layer & | in_member | ) |

property RemoveLayer Removes the layer from our child array. The layer will be reparented to the Layer Container.

Parameters:

  in_member | The layer to remove

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

- xsi_layer.h