Table of Contents

Class MeshElement3D

Namespace
HelixToolkit.Wpf
Assembly
HelixToolkit.Wpf.dll

Represents a base class for elements that contain one GeometryModel3D and front and back Materials.

public abstract class MeshElement3D : ModelVisual3D, IAnimatable, IAddChild, IEditableObject
Inheritance
MeshElement3D
Implements
Derived
Inherited Members
Extension Methods

Remarks

Derived classes should override the Tessellate method to generate the geometry.

Constructors

MeshElement3D()

Initializes a new instance of the MeshElement3D class.

protected MeshElement3D()

Fields

BackMaterialProperty

Identifies the BackMaterial dependency property.

public static readonly DependencyProperty BackMaterialProperty

Field Value

DependencyProperty

FillProperty

Identifies the Fill dependency property.

public static readonly DependencyProperty FillProperty

Field Value

DependencyProperty

MaterialProperty

Identifies the Material dependency property.

public static readonly DependencyProperty MaterialProperty

Field Value

DependencyProperty

VisibleProperty

The visibility property.

public static readonly DependencyProperty VisibleProperty

Field Value

DependencyProperty

Properties

BackMaterial

Gets or sets the back material.

public Material BackMaterial { get; set; }

Property Value

Material

The back material.

Fill

Gets or sets the fill brush. This brush will be used for both the Material and BackMaterial.

public Brush Fill { get; set; }

Property Value

Brush

The fill brush.

Material

Gets or sets the material.

public Material Material { get; set; }

Property Value

Material

The material.

Model

Gets the geometry model.

public GeometryModel3D? Model { get; }

Property Value

GeometryModel3D

The geometry model.

Visible

Gets or sets a value indicating whether this MeshElement3D is visible.

public bool Visible { get; set; }

Property Value

bool

true if the element is visible; otherwise, false.

Methods

BeginEdit()

Begins an edit on the object.

public void BeginEdit()

CancelEdit()

Discards changes since the last BeginEdit() call.

public void CancelEdit()

EndEdit()

Pushes changes since the last BeginEdit() or AddNew() call into the underlying object.

public void EndEdit()

GeometryChanged(DependencyObject, DependencyPropertyChangedEventArgs)

The geometry was changed.

protected static void GeometryChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

Parameters

d DependencyObject

The d.

e DependencyPropertyChangedEventArgs

The event arguments.

MaterialChanged(DependencyObject, DependencyPropertyChangedEventArgs)

The Material or BackMaterial property was changed.

protected static void MaterialChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

Parameters

d DependencyObject

The d.

e DependencyPropertyChangedEventArgs

The event arguments.

OnFillChanged()

The Fill property was changed.

protected virtual void OnFillChanged()

OnGeometryChanged()

Handles changes in geometry or visible state.

protected virtual void OnGeometryChanged()

OnMaterialChanged()

Handles changes in material/back material.

protected virtual void OnMaterialChanged()

Tessellate()

Do the tessellation and return the MeshGeometry3D.

protected abstract MeshGeometry3D? Tessellate()

Returns

MeshGeometry3D

A triangular mesh geometry.

UpdateModel()

Forces an update of the geometry and materials.

public void UpdateModel()

VisibleChanged(DependencyObject, DependencyPropertyChangedEventArgs)

The visible flag changed.

protected static void VisibleChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

Parameters

d DependencyObject

The d.

e DependencyPropertyChangedEventArgs

The event arguments.

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