About the Custom scene navigation commands Sample
[C#]
ExpandFOV.cs
using System;
using ESRI.ArcGIS.Analyst3D;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using System.Runtime.InteropServices;
namespace sceneTools
{
[ClassInterface(ClassInterfaceType.None)]
[Guid("90A4082D-8A9A-4858-BBFC-4DE3DF05905A")]
public sealed class ExpandFOV : BaseCommand
{
#region COM Registration Function(s)
[ComRegisterFunction()]
[ComVisible(false)]
static void RegisterFunction(Type registerType)
{
// Required for ArcGIS Component Category Registrar support
ArcGISCategoryRegistration(registerType);
//
// TODO: Add any COM registration code here
//
}
[ComUnregisterFunction()]
[ComVisible(false)]
static void UnregisterFunction(Type registerType)
{
// Required for ArcGIS Component Category Registrar support
ArcGISCategoryUnregistration(registerType);
//
// TODO: Add any COM unregistration code here
//
}
#region ArcGIS Component Category Registrar generated code
/// <summary>
/// Required method for ArcGIS Component Category registration -
/// Do not modify the contents of this method with the code editor.
/// </summary>
private static void ArcGISCategoryRegistration(Type registerType)
{
string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
ControlsCommands.Register(regKey);
}
/// <summary>
/// Required method for ArcGIS Component Category unregistration -
/// Do not modify the contents of this method with the code editor.
/// </summary>
private static void ArcGISCategoryUnregistration(Type registerType)
{
string regKey = string.Format("HKEY_CLASSES_ROOT\\CLSID\\{{{0}}}", registerType.GUID);
ControlsCommands.Unregister(regKey);
}
#endregion
#endregion
private ISceneHookHelper m_pSceneHookHelper;
public ExpandFOV()
{
base.m_category = "Sample_SceneControl(C#)";
base.m_caption = "Expand Field of View";
base.m_toolTip = "Expand Field of View";
base.m_name = "Sample_SceneControl(C#)/Expand Field of View";
base.m_message = "Expand the Field of View";
//Load resources
string[] res = GetType().Assembly.GetManifestResourceNames();
if (res.GetLength(0) > 0)
{
base.m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream("sceneTools.expand.bmp"));
}
m_pSceneHookHelper = new SceneHookHelperClass();
}
public override bool Enabled
{
get
{
if (m_pSceneHookHelper.Hook == null || m_pSceneHookHelper.Scene == null)
return false;
else
{
ICamera pCamera = (ICamera)m_pSceneHookHelper.Camera;
//Disable if orthographic (2D) view
if (pCamera.ProjectionType == esri3DProjectionType.esriOrthoProjection)
return false;
else
return true;
}
}
}
public override void OnCreate(object hook)
{
m_pSceneHookHelper.Hook = hook;
}
public override void OnClick()
{
//Get scene viewer's camera
ICamera pCamera = (ICamera)m_pSceneHookHelper.Camera;
//Widen the field of view
double dAngle;
dAngle = pCamera.ViewFieldAngle;
pCamera.ViewFieldAngle = dAngle * 1.1;
//Redraw the scene viewer
ISceneViewer pSceneViewer = (ISceneViewer)m_pSceneHookHelper.ActiveViewer;
pSceneViewer.Redraw(false);
}
}
}
[Visual Basic .NET]
ExpandFOV.vb
Imports ESRI.ArcGIS.Analyst3D
Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports ESRI.ArcGIS.Controls
Imports System.Runtime.InteropServices
<ComClass(ExpandFOV.ClassId, ExpandFOV.InterfaceId, ExpandFOV.EventsId)> _
Public NotInheritable Class ExpandFOV
Inherits BaseCommand
#Region "COM GUIDs"
' These GUIDs provide the COM identity for this class
' and its COM interfaces. If you change them, existing
' clients will no longer be able to access the class.
Public Const ClassId As String = "3C23D6D3-D211-4F81-A487-2528A78F0E00"
Public Const InterfaceId As String = "22EE6E86-5517-4ED8-B64F-AC4F42E8E48C"
Public Const EventsId As String = "A8BC9C14-8BC2-490F-8D6A-0AFAFE8F5391"
#End Region
#Region "COM Registration Function(s)"
<ComRegisterFunction(), ComVisibleAttribute(False)> _
Public Shared Sub RegisterFunction(ByVal registerType As Type)
' Required for ArcGIS Component Category Registrar support
ArcGISCategoryRegistration(registerType)
'Add any COM registration code after the ArcGISCategoryRegistration() call
End Sub
<ComUnregisterFunction(), ComVisibleAttribute(False)> _
Public Shared Sub UnregisterFunction(ByVal registerType As Type)
' Required for ArcGIS Component Category Registrar support
ArcGISCategoryUnregistration(registerType)
'Add any COM unregistration code after the ArcGISCategoryUnregistration() call
End Sub
#Region "ArcGIS Component Category Registrar generated code"
''' <summary>
''' Required method for ArcGIS Component Category registration -
''' Do not modify the contents of this method with the code editor.
''' </summary>
Private Shared Sub ArcGISCategoryRegistration(ByVal registerType As Type)
Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
ControlsCommands.Register(regKey)
End Sub
''' <summary>
''' Required method for ArcGIS Component Category unregistration -
''' Do not modify the contents of this method with the code editor.
''' </summary>
Private Shared Sub ArcGISCategoryUnregistration(ByVal registerType As Type)
Dim regKey As String = String.Format("HKEY_CLASSES_ROOT\CLSID\{{{0}}}", registerType.GUID)
ControlsCommands.Unregister(regKey)
End Sub
#End Region
#End Region
Private m_pSceneHookHelper As ISceneHookHelper
' A creatable COM class must have a Public Sub New()
' with no parameters, otherwise, the class will not be
' registered in the COM registry and cannot be created
' via CreateObject.
Public Sub New()
MyBase.New()
MyBase.m_category = "Sample_SceneControl(VB.NET)"
MyBase.m_caption = "Expand Field of View"
MyBase.m_toolTip = "Expand Field of View"
MyBase.m_name = "Sample_SceneControl(VB.NET)/Expand Field of View"
MyBase.m_message = "Expand the Field of View"
Dim res() As String = GetType(ExpandFOV).Assembly.GetManifestResourceNames()
If res.GetLength(0) > 0 Then
MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(ExpandFOV).Assembly.GetManifestResourceStream("SceneToolsVB.expand.bmp"))
End If
m_pSceneHookHelper = New SceneHookHelperClass
End Sub
Public Overrides ReadOnly Property Enabled() As Boolean
Get
If m_pSceneHookHelper.Hook Is Nothing Or m_pSceneHookHelper.Scene Is Nothing Then
Return False
Else
Dim pCamera As ICamera = CType(m_pSceneHookHelper.Camera, ICamera)
'Disable if orthographic (2D) view
If pCamera.ProjectionType = esri3DProjectionType.esriOrthoProjection Then
Return False
Else
Return True
End If
End If
End Get
End Property
Public Overrides Sub OnCreate(ByVal hook As Object)
m_pSceneHookHelper.Hook = hook
End Sub
Public Overrides Sub OnClick()
'Get scene viewer's camera
Dim pCamera As ICamera = CType(m_pSceneHookHelper.Camera, ICamera)
'Widen the field of view
Dim dAngle As Double
dAngle = pCamera.ViewFieldAngle
pCamera.ViewFieldAngle = dAngle * 1.1
'Redraw the scene viewer
Dim pSceneViewer As ISceneViewer = CType(m_pSceneHookHelper.ActiveViewer, ISceneViewer)
pSceneViewer.Redraw(False)
End Sub
End Class