| SoIndexedNurbsCurve Class |
Indexed NURBS curve shape node.
Inheritance HierarchyOIV.InventorSoNetBase
OIV.InventorSoDisposable
OIV.Inventor.MiscSoBase
OIV.Inventor.FieldsSoFieldContainer
OIV.Inventor.NodesSoNode
OIV.Inventor.NodesSoShape
OIV.Inventor.NodesSoNurbsCurve
OIV.Inventor.NodesSoIndexedNurbsCurve
Namespace: OIV.Inventor.Nodes
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 2024.1.1.0 (2024.1.1)
SyntaxThe SoIndexedNurbsCurve type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | SoIndexedNurbsCurve | Creates an indexed NURBS curve node with default settings. |
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) | Compute axis aligned bounding box (AABB) for subclass using information in the given action (which may not necessarily be an OIV.Inventor.Actions.SoGetBoundingBoxAction). |
| ComputeBBox(SoAction, SbXfBox3d, SbVec3d) | Compute object oriented bounding box (OOB) for subclass using information in the given action (which may not necessarily be an OIV.Inventor.Actions.SoGetBoundingBoxAction). |
| 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.SoNurbsCurve.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. |
| 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.) |
| 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 | Implements picking along a ray by intersecting the ray with each primitive generated by subclass. |
| 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 SoNode.) |
Properties| Name | Description | |
|---|---|---|
 | boundingBoxIgnoring | Whether to ignore this node during bounding box traversal. |
| coordIndex | Coordinate indices for the control points. |
| IsDisposable | ISafeDisposable interface implementation.
(Inherited from SoDisposable.) |
| knotVector | The knot vector. |
| numControlPoints | Number of control points. |
| UserData |
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.) |
RemarksThis class represents a NURBS curve based on the knot vector and the control points that you specify. The knotVector field specifies a floating-point array of values; the values are the coordinates of the knot points in the curve, and you must enter them in non-decreasing order. The numControlPoints field specifies the number of control points the curve will have and will use the current coordinates that are indexed from the OIV.Inventor.Nodes.SoIndexedNurbsCurve.coordIndex field.
You can get a curve of minimum order (2) by specifying two more knots than control points and having at least two control points. This curve would be a set of line segments connecting the control points together.
You can get a curve of maximum order (8) by specifying 8 more knots than control points and having at least 8 control points. In this curve, each control point would have influence on a larger portion of the curve than with curves of lesser order.
The control points of the curve are transformed by the current transformation matrix. The curve is drawn with the current lighting model and drawing style (drawing style FILLED is treated as LINES). The coordinates, normals, and texture coordinates of a NURBS curve are generated, so you cannot bind explicit normals or texture coordinates to a NURBS curve.
The approximation of the curve by line segments is affected by the current complexity value.
Shape Antialiasing type is OIV.Inventor.Nodes.SoShape.ShapeTypes.LINES.
FILE FORMAT/DEFAULT
IndexedNurbsCurve {
| numControlPoints | 0 |
| coordIndex | 0 |
| knotVector | 0 |
ACTION BEHAVIOR
OIV.Inventor.Actions.SoGLRenderAction Draws the curve based on the current coordinates, material, and so on.
OIV.Inventor.Actions.SoRayPickAction Picks the curve based on the current coordinates and transformation.
OIV.Inventor.Actions.SoGetBoundingBoxAction Computes the bounding box that encloses all control points of the curve with the current transformation applied to them. Sets the center to the average of the control points.
OIV.Inventor.Actions.SoCallbackAction If any line segment callbacks are registered with the action, they will be invoked for each successive segment approximating the curve.
See Also