SoLevelOfSimplification Class |
Level-of-detail switching node designed for grouping simplified versions of the same shape.
Namespace: OIV.Inventor.Nodes
The SoLevelOfSimplification type exposes the following members.
Name | Description | |
---|---|---|
SoLevelOfSimplification | Creates level-of-simplification node with default settings. | |
SoLevelOfSimplification(Int32) | Constructor that takes approximate number of children. |
Name | Description | |
---|---|---|
AddChild | Adds a child as last one in group. | |
AffectsState | Returns true if a node has an effect on the state during traversal. | |
Callback | (Inherited from SoLOD.) | |
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 SoLOD.) | |
EnableNotify | Notification at this Field Container is enabled (if flag == true) or disabled (if flag == false). | |
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. | |
FindChild | Finds index of given child within group. | |
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 | (Inherited from SoLOD.) | |
GetChild | Returns pointer the child node with the given index. | |
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 SoGroup.) | |
GetName | Returns the name of an instance. | |
GetNumChildren | Returns number of children. | |
GetPrimitiveCount | (Overrides SoLODGetPrimitiveCount(SoGetPrimitiveCountAction).) | |
GetRenderEngineMode | Returns the supported Render engine mode. | |
GetRenderUnitID | (Inherited from SoNode.) | |
GetStringName | (Inherited from SoBase.) | |
GetType | Gets the Type of the current instance. (Inherited from Object.) | |
GLRender | (Inherited from SoLOD.) | |
GLRenderBelowPath | (Inherited from SoLOD.) | |
GLRenderInPath | (Inherited from SoLOD.) | |
GLRenderOffPath | (Inherited from SoLOD.) | |
GrabEventsCleanup | (Inherited from SoNode.) | |
GrabEventsSetup | (Inherited from SoNode.) | |
HandleEvent | (Inherited from SoGroup.) | |
HasDefaultValues | Returns true if all of the object's fields have their default values. | |
InsertChild | Adds a child so that it becomes the one with the given index. | |
IsBoundingBoxIgnoring | Used by BoundingBoxAction to known 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 SoGroup.) | |
RayPick | (Inherited from SoLOD.) | |
RemoveAllChildren | Removes all children from group. | |
RemoveChild(Int32) | Removes child with given index from group. | |
RemoveChild(SoNode) | Removes first instance of given child from group. | |
ReplaceChild(Int32, SoNode) | Replaces child with given index with new child. | |
ReplaceChild(SoNode, SoNode) | Replaces first instance of given child with new child. | |
Search | (Inherited from SoGroup.) | |
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. | |
SetSynchronizable | Sets this to be a ScaleViz synchronizable object. | |
SetToDefaults | Sets all fields in this object to their default values. | |
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 SoGroup.) |
Name | Description | |
---|---|---|
boundingBoxIgnoring | Whether to ignore this node during bounding box traversal. | |
center | Object-space center of the model. | |
IsDisposable | ISafeDisposable interface implementation.
(Inherited from SoDisposable.) | |
numTriangles | Number of triangles in highest (1.0) case. | |
percentages | Percentage decimation for each child. | |
range | World-space distances to use as switching criteria. | |
UserData |
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.) |
This group node is used to group the results of simplifying a shape, such that every child represents the same model but with a different number of primitives. Since it is derived from OIV.Inventor.Nodes.SoLOD, it can behave as a distance-based level-of-detail node; however, it also responds to the decimation percentage element. It records what percentage decimation each child is, and then chooses the appropriate child based on the DecimationPercentage and DecimationType elements.
You should specify N percentages for N+1 children. If the DecimationType is HIGHEST or LOWEST, then the LevelOfSimplification node will automatically choose the first or last child, respectively. If the DecimationType is PERCENTAGE, then the node will choose child "i" based on the decimation percentage element value such that:
percentages[i-1] <= DecimationPercentage < percentages[i]If the DecimationType is AUTOMATIC, then the child is chosen based on the range value in the usual OIV.Inventor.Nodes.SoLOD manner, but no child greater than the value of the DecimationPercentage element will be chosen.
This node also has a field for recording how many triangles the full detail child contains. This allows this node to answer an OIV.Inventor.Actions.SoGetPrimitiveCountAction without traversing its children. This is a benefit when some children contain WWWInline , a common occurrence. If the children contain some non-triangle primitives, then the field should be -1 which will force the node to traverse its children during OIV.Inventor.Actions.SoGetPrimitiveCountAction.
LevelOfSimplification {
percentages | [] |
numTriangles | -1 |
center | 0 0 0 |
range | [ ] |
OIV.Inventor.Actions.SoGLRenderAction, OIV.Inventor.Actions.SoRayPickAction, OIV.Inventor.Actions.SoCallbackAction Only the child with the appropriate level of detail is traversed.
OIV.Inventor.Actions.SoGetPrimitiveCountAction A child is chosen in the same way as in GLRender. If the OIV.Inventor.Nodes.SoLevelOfSimplification.numTriangles field is greater than 0, the percentage value for this child is multiplied by the OIV.Inventor.Nodes.SoLevelOfSimplification.numTriangles value and this value is added to the PrimitiveCount without traversing the child. If OIV.Inventor.Nodes.SoLevelOfSimplification.numTriangles is less than or equal to 0, then the child is traversed to get the count.
Other actions
Implemented as for OIV.Inventor.Nodes.SoGroup