| SoRadialGradientLabelProcessing2d Class |
SoRadialGradientLabelProcessing2d engine
Inheritance HierarchyOIV.InventorSoNetBase
OIV.InventorSoDisposable
OIV.Inventor.MiscSoBase
OIV.Inventor.FieldsSoFieldContainer
OIV.Inventor.EnginesSoEngine
OIV.ImageViz.EnginesSoImageVizEngine
OIV.ImageViz.Engines.EdgeDetection.GradientSoRadialGradientLabelProcessing2d
Namespace: OIV.ImageViz.Engines.EdgeDetection.Gradient
Assembly: OIV.ImageViz (in OIV.ImageViz.dll) Version: 9.9.37.0 (9.9.37.0)
SyntaxThe SoRadialGradientLabelProcessing2d type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | SoRadialGradientLabelProcessing2d | Constructor. |
Methods| Name | Description | |
|---|---|---|
| AbortEvaluate | Abort current processing as soon as possible. |
| Copy | Creates and returns an exact copy of the engine. |
| 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.) |
| 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. |
| 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. |
| 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.) |
| GetName | Returns the name of an instance. |
| GetOutput | Returns a reference to the engine output with the given name. |
| GetOutputName | Returns (in outputName) the name of the engine output (output). |
| GetOutputs | Returns a list of outputs in this engine. |
| GetStringName | (Inherited from SoBase.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| HasDefaultValues | Returns true if all of the object's fields have their default values. |
| IsEvaluating | Returns true if the engine evaluation is in progress. |
| IsNotifyEnabled | Notification is the process of telling interested objects that this object has changed. |
| IsSynchronizable | Gets the ScaleViz synchronizable state of this object. |
| 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.) |
| SetSynchronizable | Sets this to be a ScaleViz synchronizable object. |
| SetToDefaults | Sets all fields in this object to their default values. |
| StartEvaluate | Evaluate engine and dependencies in another thread without blocking the current one. |
| ToString |
Converts this SoBase structure to a human readable string.
(Inherited from SoBase.) |
| Touch | Marks an instance as modified, simulating a change to it. |
| WaitEvaluate | Wait for the end of engine evaluation. |
Properties| Name | Description | |
|---|---|---|
 | inGradientXImage | The input X-gradient image. |
| inGradientYImage | The input Y-gradient image. |
| inMarkerImage | The input marker image. |
| IsDisposable | ISafeDisposable interface implementation.
(Inherited from SoDisposable.) |
| outNormalImage | The output normal gradient image. |
| outTangentImage | The output tangent gradient image. |
| projectionMode | Select the output images mode. |
| UserData |
Gets or sets the user data to be contained by the field container.
(Inherited from SoFieldContainer.) |
Events| Name | Description | |
|---|---|---|
 | OnBegin | Event raised when the processing begins. |
| OnEnd | Event raised when processing ends and the result is available. |
| OnProgress | Event raised while processing is running. |
RemarksThe SoRadialGradientLabelProcessing2d engine performs a projected gradient computing the directional vector.
For an introduction, see:
section Edge Detection
section Images Filters
In the continuous 2-D case, for a given pixel 
and knowing the gradient 
and 
, the projected gradient of an image 
is defined along the unitary vector 
, as :
The SoRadialGradientLabelProcessing2d engine performs a projected gradient computing the directional vector from all centers of the objects in the image label. For a pixel in the image, the center 
taken into account is the center of the closest object label.
 |  |
It is a common way to get the recursive gradient in X and Y directions for input image Gx and Gy, using a spread of 60.
The projected resulting gradient image is the Normal Gradient. Simultaneously, the tangential gradient could be computed with the option GRADIENT_NORMAL_TANGENTIAL of ProjectionMode
FILE FORMAT/DEFAULT
RadialGradientLabelProcessing2d {
| inGradientXImage | NULL |
| inGradientYImage | NULL |
| inMarkerImage | NULL |
| projectionMode | GRADIENT_NORMAL |
Library references: pgradient_label2d
See Also