NLayer Class

In This Topic

The NLayer class serves as primary drawing document content container

Object Model

Syntax

Visual Basic
C#

'Declaration
 
<System.Xml.Serialization.XmlIncludeAttribute(Nevron.Diagram.NTransformableElement)>
<System.SerializableAttribute()>
Public Class NLayer 
   Inherits NStyleableElement
   Implements INContextMenuEditable, INDiagramElement, INDiagramElementComposite, INDiagramElementContainer, INHitTest, INInvalidatable, INMeasurements, INPaintable, INStyleable, INStyleComposer, INVisible, INZOrderable, Nevron.Dom.INAttributeContainer, Nevron.Dom.INAttributeObserver, Nevron.Dom.INElement, Nevron.Dom.INElementComposite, Nevron.Dom.INElementContainer, Nevron.Dom.INHistoryCallback, Nevron.Dom.INIdentifiable, Nevron.Dom.INNode, Nevron.Dom.INNodeComposite, Nevron.Dom.INNodeContainer, Nevron.Dom.INUniquelyIdentifiable, Nevron.INReferenceHolder, Nevron.INReferenceProvider

'Usage
 
Dim instance As NLayer

[System.Xml.Serialization.XmlInclude(Nevron.Diagram.NTransformableElement)]
[System.Serializable()]
public class NLayer : NStyleableElement, INContextMenuEditable, INDiagramElement, INDiagramElementComposite, INDiagramElementContainer, INHitTest, INInvalidatable, INMeasurements, INPaintable, INStyleable, INStyleComposer, INVisible, INZOrderable, Nevron.Dom.INAttributeContainer, Nevron.Dom.INAttributeObserver, Nevron.Dom.INElement, Nevron.Dom.INElementComposite, Nevron.Dom.INElementContainer, Nevron.Dom.INHistoryCallback, Nevron.Dom.INIdentifiable, Nevron.Dom.INNode, Nevron.Dom.INNodeComposite, Nevron.Dom.INNodeContainer, Nevron.Dom.INUniquelyIdentifiable, Nevron.INReferenceHolder, Nevron.INReferenceProvider

Remarks

NLayer enhances its base NStyleableElement with the following features:

NLayer implements the INDiagramElementComposite interface, so you can freely insert and remove elements from a layer.
By implementing the INPaintable interface layers propagate the painting to their children. Layers can also split the painting into Shadow and Appearance passes, so that the shadows of all nodes inside one layer are painted before their content.
Implemented is the INHitTest interface to indicate that the NLayer descendants can be hittested.

Layers can be automatically shown/hidden based on the current zoom factor. If the EnableShowInZoomRange property is set to true, the layer will only be shown if the current zoom factor is in the range specified by the MinShowZoomFactor and MaxShowZoomFactor properties.

Inheritance Hierarchy

System.Object
   Nevron.Diagram.NDiagramNode
      Nevron.Diagram.NDiagramElement
         Nevron.Diagram.NStyleComposerElement
            Nevron.Diagram.NStyleableElement
               Nevron.Diagram.NLayer

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

NLayer Members
Nevron.Diagram Namespace

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