| SoIndexedTriangleFanSet Class |
Indexed triangle fan set shape node.
Inheritance HierarchyOIV.InventorSoNetBase
OIV.InventorSoDisposable
OIV.Inventor.MiscSoBase
OIV.Inventor.FieldsSoFieldContainer
OIV.Inventor.NodesSoNode
OIV.Inventor.NodesSoShape
OIV.Inventor.NodesSoVertexShape
OIV.Inventor.NodesSoIndexedShape
OIV.Inventor.NodesSoIndexedTriangleFanSet
Namespace: OIV.Inventor.Nodes
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2023.1.3.0 (2023.1.3)
SyntaxThe SoIndexedTriangleFanSet type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | SoIndexedTriangleFanSet | Constructs a default IndexedTriangleFanSet. |
Methods| Name | Description | |
|---|---|---|
| AffectsState | Overrides default method on OIV.Inventor.Nodes.SoNode. |
| BeginShape(SoAction, SoShapeTriangleShapes) | Calls BeginShape(action, shapeType, (OIV.Inventor.Details.SoFaceDetail ^)nullptr). (Inherited from SoShape.) |
| BeginShape(SoAction, SoShapeTriangleShapes, SoFaceDetail) | These methods can be used by subclasses to generate triangles more easily when those triangles are part of a larger structure, such as a triangle strip, triangle fan, or triangulated polygon, according to the TriangleShape enumerated type. |
| Callback | Implements primitive generation for all shapes. |
| ComputeBBox(SoAction, SbBox3f, SbVec3f) | This handles AABB bounding box computation for all shapes derived from this class. |
| ComputeBBox(SoAction, SbXfBox3d, SbVec3d) | This handles OOBB bounding box computation for all shapes derived from this class. |
| Copy | Calls Copy(false). (Inherited from SoNode.) |
| Copy(Boolean) | Creates and returns an exact copy of the node. |
| CopyFieldValues(SoFieldContainer) | Calls CopyFieldValues(fc, false). (Inherited from SoFieldContainer.) |
| CopyFieldValues(SoFieldContainer, Boolean) | Copies the contents of fc's fields into this object's fields. |
| Dispose |
Releases all resources used by SoDisposable.
(Inherited from SoDisposable.) |
| Distribute | (Inherited from SoNode.) |
| DoAction | (Inherited from SoNode.) |
| EnableNotify | Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false). |
| EndShape | end shape previously started with OIV.Inventor.Nodes.SoShape.BeginShape(OIV.Inventor.Actions.SoAction, OIV.Inventor.Nodes.SoShape.TriangleShapes, OIV.Inventor.Details.SoFaceDetail). |
| Equals | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| FieldsAreEqual | Returns true if this object's fields are exactly equal to fc's fields. |
| Get | Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string. |
| GetAllFields | Returns a list of fields, including the eventIn's and eventOut's. |
| GetAlternateRep | This method is called by actions to allow the node to provide an "alternate representation" when appropriate (typically depending on the action type). |
| GetBoundingBox | Implements bounding box method using virtual OIV.Inventor.Nodes.SoShape.ComputeBBox(OIV.Inventor.Actions.SoAction, OIV.Inventor.SbBox3f@, OIV.Inventor.SbVec3f@) method. |
| GetEventIn | Returns a the eventIn with the given name. |
| GetEventOut | Returns the eventOut with the given name. |
| GetField | Returns a the field of this object whose name is fieldName. |
| GetFieldName | Returns the name of the given field in the fieldName argument. |
| GetFields | Appends references to all of this object's fields to resultList, and returns the number of fields appended. |
| GetHashCode |
Overrides GetHashCode().
(Inherited from SoNetBase.) |
| GetMatrix | (Inherited from SoNode.) |
| GetName | Returns the name of an instance. |
| GetNormalCache | Returns the current normal cache, or NULL if there is none. |
| GetNumFans | Returns the number of fans (parts) |
| GetNumNeededNormals | |
| GetNumTriangles | Returns the number of triangles. |
| GetPrimitiveCount | Counts number of primitives produced by this shape. |
| GetRenderEngineMode | Returns the supported Render engine mode. |
| GetRenderUnitID | (Inherited from SoNode.) |
| GetShapeType | Gets the current shape Full Scene Antialiasing type. |
| GetStringName | (Inherited from SoBase.) |
| GetTangentCache | Returns the current tangent cache, or NULL if there is none. |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| GLRender | Implements rendering by rendering each primitive generated by subclass. |
| GLRenderBelowPath | (Inherited from SoNode.) |
| GLRenderInPath | (Inherited from SoNode.) |
| GLRenderOffPath | (Inherited from SoNode.) |
| GrabEventsCleanup | (Inherited from SoNode.) |
| GrabEventsSetup | (Inherited from SoNode.) |
| HandleEvent | (Inherited from SoNode.) |
| HasDefaultValues | Returns true if all of the object's fields have their default values. |
| IsBoundingBoxIgnoring | Used by BoundingBoxAction to know if bounding box computation should be ignored or not. |
| IsNotifyEnabled | Notification is the process of telling interested objects that this object has changed. |
| IsOverride | Returns the state of the override flag. |
| IsSynchronizable | Gets the ScaleViz synchronizable state of this object. |
| Pick | (Inherited from SoNode.) |
| RayPick | This handles pointPicking mode. |
| Search | (Inherited from SoNode.) |
| Set | Sets one or more fields in this object to the values specified in the given string, which should be a string in the Open Inventor file format. |
| SetName | (Inherited from SoBase.) |
| SetOverride | Turns the override flag on or off. |
| SetShapeType | set the antialiasing type for this shape. |
| SetSynchronizable | Sets this to be a ScaleViz synchronizable object. |
| SetToDefaults | Sets all fields in this object to their default values. |
| ShapeVertex | add a primitive vertex to the shape prevously started with OIV.Inventor.Nodes.SoShape.BeginShape(OIV.Inventor.Actions.SoAction, OIV.Inventor.Nodes.SoShape.TriangleShapes, OIV.Inventor.Details.SoFaceDetail). |
| ToString |
Converts this SoBase structure to a human readable string.
(Inherited from SoBase.) |
| Touch | Marks an instance as modified, simulating a change to it. |
| Write | (Inherited from SoVertexShape.) |
Properties| Name | Description | |
|---|---|---|
 | boundingBoxIgnoring | Whether to ignore this node during bounding box traversal. |
| coordIndex | The indices of the coordinates that the shape uses as its vertices. |
| IsDisposable | ISafeDisposable interface implementation.
(Inherited from SoDisposable.) |
| materialIndex | The indices of the materials that are used for the shape. |
| normalIndex | The indices of the normals that are used for the shape. |
| tangentIndex | The indices of the tangents that are used for the shape. |
| textureCoordIndex | The indices of the texture coordinates that are used for the shape. |
| UserData |
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.) |
| vertexProperty | vertex property node. |
RemarksThis shape node constructs triangle fans out of vertices located at the coordinates specified in the vertexProperty field (from OIV.Inventor.Nodes.SoVertexShape), or the current inherited coordinates. For optimal performance, the vertexProperty field is recommended.
OIV.Inventor.Nodes.SoIndexedTriangleFanSet uses the indices in the coordIndex field (from OIV.Inventor.Nodes.SoIndexedShape) to specify the vertices of the triangle fans. An index of SO_END_FAN_INDEX (-1) indicates that the current fan has ended and the next one begins.
The vertices of the faces are transformed by the current transformation matrix. The faces are drawn with the current light model and drawing style.
Treatment of the current material and normal binding is as follows: PER_PART specifies a material or normal per fan. PER_FACE binding specifies a material or normal for each triangle. PER_VERTEX specifies a material or normal for each vertex. The corresponding _INDEXED bindings are the same, but use the materialIndex or normalIndex indices (see OIV.Inventor.Nodes.SoIndexedShape). The default material binding is OVERALL. The default normal binding is PER_VERTEX_INDEXED
If any normals (or materials) are specified, Open Inventor assumes you provide the correct number of them, as indicated by the binding. You will see unexpected results if you specify fewer normals (or materials) than the shape requires. If no normals are specified, they will be generated automatically.
To render triangles that are not in fans, see the OIV.Inventor.Nodes.SoIndexedTriangleSet and OIV.Inventor.Nodes.SoIndexedTriangleStripSet nodes.
Limitations:
Due to limitations of the OpenGL VBO (vertex buffer object) rendering model, it is not possible to use VBO rendering (and performance may be lower) if either the normal binding or the material binding is set to either PER_PART(_INDEXED) or PER_FACE(_INDEXED).
For texture coordinates and normal binding, only OVERALL and PER_VERTEX_INDEXED mode are supported yet.
FILE FORMAT/DEFAULT
IndexedTriangleFanSet {
| vertexProperty | NULL |
| coordIndex | -1 |
| materialIndex | -1 |
| normalIndex | -1 |
| textureCoordIndex | -1 |
ACTION BEHAVIOR
OIV.Inventor.Actions.SoGLRenderAction Draws a fan set based on the current coordinates, normals, materials, drawing style, and so on.
OIV.Inventor.Actions.SoRayPickAction Picks on the fan set based on the current coordinates and transformation. Details about the intersection are returned in an OIV.Inventor.Details.SoFaceDetail.
OIV.Inventor.Actions.SoGetBoundingBoxAction Computes the bounding box that encloses all vertices of the fan set with the current transformation applied to them. Sets the center to the average of the coordinates of all vertices.
OIV.Inventor.Actions.SoCallbackAction If any triangle callbacks are registered with the action, they will be invoked for each successive triangle forming the fan of the set.
See Also