SoDataSetId Class

SoDataSetId Class

Property node that sets the current dataset id.

Inheritance Hierarchy

SystemObject
  OIV.InventorSoNetBase
    OIV.InventorSoDisposable
      OIV.Inventor.MiscSoBase
        OIV.Inventor.FieldsSoFieldContainer
          OIV.Inventor.NodesSoNode
            OIV.LDM.NodesSoDataSetId

Namespace: OIV.LDM.Nodes
Assembly: OIV.LDM (in OIV.LDM.dll) Version: 2024.2.2.0 (10.16.2.0)

Syntax

C++

Copy

public class SoDataSetId : SoNode

Public Class SoDataSetId
	Inherits SoNode

public ref class SoDataSetId : public SoNode

type SoDataSetId =  
    class
        inherit SoNode
    end

The SoDataSetId type exposes the following members.

Constructors

	Name	Description
	SoDataSetId	Constructor.

Top

Methods

	Name	Description
	AffectsState	Returns true if a node has an effect on the state during traversal. (Inherited from SoNode.)
	Callback	(Overrides SoNodeCallback(SoCallbackAction).)
	Copy	Calls Copy(false). (Inherited from SoNode.)
	Copy(Boolean)	Creates and returns an exact copy of the node. (Inherited from SoNode.)
	CopyFieldValues(SoFieldContainer)	Calls CopyFieldValues(fc, false). (Inherited from SoFieldContainer.)
	CopyFieldValues(SoFieldContainer, Boolean)	Copies the contents of fc's fields into this object's fields. (Inherited from SoFieldContainer.)
	Dispose	Releases all resources used by SoDisposable. (Inherited from SoDisposable.)
	Distribute	(Inherited from SoNode.)
	DoAction	(Overrides SoNodeDoAction(SoAction).)
	EnableNotify	Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false). (Inherited from SoFieldContainer.)
	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. (Inherited from SoFieldContainer.)
	Get	Returns the values of the fields of this object in the Open Inventor ASCII file format in the given string. (Inherited from SoFieldContainer.)
	GetAllFields	Returns a list of fields, including the eventIn's and eventOut's. (Inherited from SoFieldContainer.)
	GetAlternateRep	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.)
	GetBoundingBox	(Inherited from SoNode.)
	GetEventIn	Returns a the eventIn with the given name. (Inherited from SoFieldContainer.)
	GetEventOut	Returns the eventOut with the given name. (Inherited from SoFieldContainer.)
	GetField	Returns a the field of this object whose name is fieldName. (Inherited from SoFieldContainer.)
	GetFieldName	Returns the name of the given field in the fieldName argument. (Inherited from SoFieldContainer.)
	GetFields	Appends references to all of this object's fields to resultList, and returns the number of fields appended. (Inherited from SoFieldContainer.)
	GetHashCode	Overrides GetHashCode(). (Inherited from SoNetBase.)
	GetMatrix	(Inherited from SoNode.)
	GetName	Returns the name of an instance. (Inherited from SoBase.)
	GetPrimitiveCount	(Inherited from SoNode.)
	GetRenderEngineMode	Returns the supported Render engine mode. (Inherited from SoNode.)
	GetRenderUnitID	(Inherited from SoNode.)
	GetStringName	(Inherited from SoBase.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GLRender	(Overrides SoNodeGLRender(SoGLRenderAction).)
	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. (Inherited from SoFieldContainer.)
	IsBoundingBoxIgnoring	This method is used by getBoundingBox action traversal to know if the current node must be traversed or not, ie the bounding should be ignored. (Inherited from SoNode.)
	IsNotifyEnabled	Notification is the process of telling interested objects that this object has changed. (Inherited from SoFieldContainer.)
	IsOverride	Returns the state of the override flag. (Inherited from SoNode.)
	IsSynchronizable	Gets the ScaleViz synchronizable state of this object. (Inherited from SoBase.)
	Pick	(Inherited from SoNode.)
	RayPick	(Inherited from SoNode.)
	Search	(Overrides SoNodeSearch(SoSearchAction).)
	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. (Inherited from SoFieldContainer.)
	SetName	(Inherited from SoBase.)
	SetOverride	Turns the override flag on or off. (Inherited from SoNode.)
	SetSynchronizable	Sets this to be a ScaleViz synchronizable object. (Inherited from SoBase.)
	SetToDefaults	Sets all fields in this object to their default values. (Inherited from SoFieldContainer.)
	ToString	Converts this SoBase structure to a human readable string. (Inherited from SoBase.)
	Touch	Marks an instance as modified, simulating a change to it. (Inherited from SoNode.)
	Write	(Inherited from SoNode.)

Top

Properties

	Name	Description
	id	Data set id.
	IsDisposable	ISafeDisposable interface implementation. (Inherited from SoDisposable.)
	UserData	Gets or sets the user data to be contained by the field container. (Inherited from SoFieldContainer.)

Top

Remarks

When using multiple OIV.LDM.Nodes.SoDataSet nodes, the dataSet id uniquely identifies each data set used in the compositing. It also specifies the OpenGL texture unit in which the textures for each data set will be stored for use by GLSL shader programs when doing render compositing.

If an OIV.LDM.Nodes.SoDataSetId node is traversed before a data set node (OIV.LDM.Nodes.SoDataSet, OIV.VolumeViz.Nodes.SoVolumeData, etc), the data set node's dataSetId field is ignored and the id from the OIV.LDM.Nodes.SoDataSetId node is used.

In some cases we want to combine multiple data textures where each data texture comes from a different data set (OIV.VolumeViz.Nodes.SoVolumeData) node. In that case we could simply use each data set node's dataSetId field to assign each data texture a unique id. However it is also possible to create multiple data textures from a single data set using the OIV.VolumeViz.Nodes.SoVolumeTransform node. In this case the same data set node will be instanced in the scene graph multiple times (although its data will only be loaded in CPU memory once), but we still need to assign each data texture a unique id. This can be done using OIV.LDM.Nodes.SoDataSetId nodes to specify a different data set id for each instance of the data set node. For example:

EXAMPLE

Copy

SoDataSetId dataSetId1 = new SoDataSetId();
dataSetId1.id.Value = 1;
SoDataSetId dataSetId2 = new SoDataSetId();
dataSetId2.id.Value = 2;

SoMultiDataSeparator multiDataSep = new SoMultiDataSeparator();
 multiDataSep.AddChild(volumeShader); // Shader to combine volumes
 multiDataSep.AddChild(volumeTransform1);
 multiDataSep.AddChild(dataSetId1);
 multiDataSep.AddChild(volumeData);

 multiDataSep.AddChild(volumeTransform2);
 multiDataSep.AddChild(dataSetId2);
 multiDataSep.AddChild(volumeData);   // Same data node instanced again
 multiDataSep.AddChild(volumeRender);
root.AddChild( multiDataSep );

FILE FORMAT/DEFAULT

OIV.LDM.Nodes.SoDataSetId {
id 1
}

ACTION BEHAVIOR

OIV.Inventor.Actions.SoGLRenderAction, OIV.Inventor.Actions.SoCallbackAction Sets the current dataset id

Reference

OIV.LDM.Nodes Namespace

OIV.LDM.Nodes.SoDataSet