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SoPointSet Class

Point set shape node.

Inheritance Hierarchy

Namespace: OIV.Inventor.Nodes
Assembly: OIV.Inventor (in OIV.Inventor.dll) Version: 10.12.3.0 (10.12.3.0)
Syntax
public class SoPointSet : SoNonIndexedShape

The SoPointSet type exposes the following members.

Constructors
  NameDescription
Public methodSoPointSet

Creates a point set node with default settings.

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Methods
  NameDescription
Public methodAffectsState

Overrides default method on OIV.Inventor.Nodes.SoNode.

(Inherited from SoShape.)
Public methodBeginShape(SoAction, SoShapeTriangleShapes)
Calls BeginShape(action, shapeType, (OIV.Inventor.Details.SoFaceDetail ^)nullptr).
(Inherited from SoShape.)
Public methodBeginShape(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.

(Inherited from SoShape.)
Public methodCallback

Implements primitive generation for all shapes.

(Inherited from SoShape.)
Public methodComputeBBox(SoAction, SbXfBox3d, SbVec3d)

This handles OOBB bounding box computation for all shapes derived from this class.

(Inherited from SoNonIndexedShape.)
Public methodComputeBBox(SoAction, SbBox3f, SbVec3f)

This handles AABB bounding box computation for all shapes derived from this class.

(Overrides SoNonIndexedShapeComputeBBox(SoAction, SbBox3f, SbVec3f).)
Public methodCopy
Calls Copy(false).
(Inherited from SoNode.)
Public methodCopy(Boolean)

Creates and returns an exact copy of the node.

(Inherited from SoNode.)
Public methodCopyFieldValues(SoFieldContainer)
Calls CopyFieldValues(fc, false).
(Inherited from SoFieldContainer.)
Public methodCopyFieldValues(SoFieldContainer, Boolean)

Copies the contents of fc's fields into this object's fields.

(Inherited from SoFieldContainer.)
Public methodDispose
Releases all resources used by SoDisposable.
(Inherited from SoDisposable.)
Public methodDistribute
(Inherited from SoNode.)
Public methodDoAction
(Inherited from SoNode.)
Public methodEnableNotify

Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false).

(Inherited from SoFieldContainer.)
Public methodEndShape

end shape previously started with OIV.Inventor.Nodes.SoShape.BeginShape(OIV.Inventor.Actions.SoAction, OIV.Inventor.Nodes.SoShape.TriangleShapes, OIV.Inventor.Details.SoFaceDetail).

(Inherited from SoShape.)
Public methodEquals
Determines whether the specified Object is equal to the current Object.
(Inherited from Object.)
Public methodFieldsAreEqual

Returns true if this object's fields are exactly equal to fc's fields.

(Inherited from SoFieldContainer.)
Public methodGet

Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string.

(Inherited from SoFieldContainer.)
Public methodGetAllFields

Returns a list of fields, including the eventIn's and eventOut's.

(Inherited from SoFieldContainer.)
Public methodGetAlternateRep

This method is called by actions to allow the node to provide an "alternate representation" when appropriate (typically depending on the action type).

(Inherited from SoNode.)
Public methodGetBoundingBox

Implements OIV.Inventor.Actions.SoGetBoundingBoxAction action Redefined this to tell open caches that they contain points.

(Overrides SoShapeGetBoundingBox(SoGetBoundingBoxAction).)
Public methodGetEventIn

Returns a the eventIn with the given name.

(Inherited from SoFieldContainer.)
Public methodGetEventOut

Returns the eventOut with the given name.

(Inherited from SoFieldContainer.)
Public methodGetField

Returns a the field of this object whose name is fieldName.

(Inherited from SoFieldContainer.)
Public methodGetFieldName

Returns the name of the given field in the fieldName argument.

(Inherited from SoFieldContainer.)
Public methodGetFields

Appends references to all of this object's fields to resultList, and returns the number of fields appended.

(Inherited from SoFieldContainer.)
Public methodGetHashCode
Overrides GetHashCode().
(Inherited from SoNetBase.)
Public methodGetMatrix
(Inherited from SoNode.)
Public methodGetName

Returns the name of an instance.

(Inherited from SoBase.)
Public methodGetNormalCache

Returns the current normal cache, or NULL if there is none.

(Inherited from SoVertexShape.)
Public methodGetPrimitiveCount (Overrides SoShapeGetPrimitiveCount(SoGetPrimitiveCountAction).)
Public methodGetRenderEngineMode

Returns the supported Render engine mode.

(Inherited from SoNode.)
Public methodGetRenderUnitID
(Inherited from SoNode.)
Public methodGetShapeType

Gets the current shape Full Scene Antialiasing type.

(Inherited from SoShape.)
Public methodGetStringName (Inherited from SoBase.)
Public methodGetTangentCache

Returns the current tangent cache, or NULL if there is none.

(Inherited from SoVertexShape.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGLRender (Overrides SoVertexShapeGLRender(SoGLRenderAction).)
Public methodGLRenderBelowPath
(Inherited from SoNode.)
Public methodGLRenderInPath
(Inherited from SoNode.)
Public methodGLRenderOffPath
(Inherited from SoNode.)
Public methodGrabEventsCleanup
(Inherited from SoNode.)
Public methodGrabEventsSetup
(Inherited from SoNode.)
Public methodHandleEvent
(Inherited from SoNode.)
Public methodHasDefaultValues

Returns true if all of the object's fields have their default values.

(Inherited from SoFieldContainer.)
Public methodIsBoundingBoxIgnoring

Used by BoundingBoxAction to know if bounding box computation should be ignored or not.

(Inherited from SoShape.)
Public methodIsNotifyEnabled

Notification is the process of telling interested objects that this object has changed.

(Inherited from SoFieldContainer.)
Public methodIsOverride

Returns the state of the override flag.

(Inherited from SoNode.)
Public methodIsSynchronizable

Gets the ScaleViz synchronizable state of this object.

(Inherited from SoBase.)
Public methodPick
(Inherited from SoNode.)
Public methodRayPick

Implements picking along a ray by intersecting the ray with each primitive generated by subclass.

(Inherited from SoShape.)
Public methodSearch
(Inherited from SoNode.)
Public methodSet

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.

(Inherited from SoFieldContainer.)
Public methodSetName (Inherited from SoBase.)
Public methodSetOverride

Turns the override flag on or off.

(Inherited from SoNode.)
Public methodSetShapeType

set the antialiasing type for this shape.

(Inherited from SoShape.)
Public methodSetSynchronizable

Sets this to be a ScaleViz synchronizable object.

(Inherited from SoBase.)
Public methodSetToDefaults

Sets all fields in this object to their default values.

(Inherited from SoFieldContainer.)
Public methodShapeVertex

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).

(Inherited from SoShape.)
Public methodToString
Converts this SoBase structure to a human readable string.
(Inherited from SoBase.)
Public methodTouch

Marks an instance as modified, simulating a change to it.

(Inherited from SoNode.)
Public methodWrite
(Inherited from SoVertexShape.)
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Properties
  NameDescription
Public propertyboundingBoxIgnoring

Whether to ignore this node during bounding box traversal.

(Inherited from SoShape.)
Public propertyIsDisposable
ISafeDisposable interface implementation.
(Inherited from SoDisposable.)
Public propertynumPoints

Number of points.

Public propertystartIndex

Index of first coordinate of shape.

(Inherited from SoNonIndexedShape.)
Public propertyUserData
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.)
Public propertyvertexProperty

vertex property node.

(Inherited from SoVertexShape.)
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Remarks

This node represents a set of points located at the coordinates specified by the vertexProperty field (from OIV.Inventor.Nodes.SoVertexShape) or the current inherited coordinates. For optimal performance, the vertexProperty field is recommended.

OIV.Inventor.Nodes.SoPointSet uses the coordinates in order, starting with the coordinate at startIndex. The number of coordinates to use (the number of points in the set) is specified by the OIV.Inventor.Nodes.SoPointSet.numPoints field. The default value of this field is -1, which means to use all the coordinates, so it may not be necessary to explicitly set this field.

The coordinates of the point set are transformed by the current cumulative transformation.

Lighting is not applied to points (i.e., they are rendered with light model BASE_COLOR) unless the application explicitly sets normal vectors using OIV.Inventor.Nodes.SoVertexProperty or OIV.Inventor.Nodes.SoNormal. Note that this is specific to direct rendering of point sets. If you render polygonal geometry, e.g. OIV.Inventor.Nodes.SoFaceSet, in POINTS mode (OIV.Inventor.Nodes.SoDrawStyle), normal vectors are computed by Open Inventor and lighting is enabled.

NOTE: If you want to apply lighting in a shader, you still need to explicitly set normal vectors, otherwise lighting will be disabled for the point set.

Point size is controlled by the OIV.Inventor.Nodes.SoDrawStyle field pointSize.

Automatic simplification (by skipping points) is controlled by the OIV.Inventor.Nodes.SoComplexity field value. Only values < 0.5 have any effect.

Treatment of the current material and normal binding is as follows: PER_PART, PER_FACE, and PER_VERTEX bindings bind one material or normal to each point. The default material binding is OVERALL. The default normal binding is PER_VERTEX.

Shape Antialiasing type is OIV.Inventor.Nodes.SoShape.ShapeTypes.POINTS.

Limitations:

  • By default, OIV.Inventor.Nodes.SoPointSet ignores the vertex ordering set on the state by OIV.Inventor.Nodes.SoShapeHints nodes in order to avoid a performance hit on some GeForce cards. However, this default behavior can be changed using the environment variable OIV_POINT_SET_USE_VERTEX_ORDERING (see OIV.Inventor.SoPreferences).

FILE FORMAT/DEFAULT

PointSet {
vertexProperty NULL
startIndex 0
numPoints -1
}

ACTION BEHAVIOR

OIV.Inventor.Actions.SoGLRenderAction Draws points based on the current coordinates, normals, materials, drawing style, and so on.

OIV.Inventor.Actions.SoRayPickAction Picks points based on the current coordinates and transformation. Details about the intersection are returned in an OIV.Inventor.Details.SoPointDetail.

OIV.Inventor.Actions.SoGetBoundingBoxAction Computes the bounding box that encloses all points in the set with the current transformation applied to them. Sets the center to the average of the coordinates of all points.

OIV.Inventor.Actions.SoCallbackAction If any point callbacks are registered with the action, they will be invoked for each point in the set.

See Also