About the Custom scene navigation commands Sample
[C#]
ZoomInOut.cs
using System;
using ESRI.ArcGIS.Analyst3D;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.ADF.BaseClasses;
using ESRI.ArcGIS.ADF.CATIDs;
using System.Runtime.InteropServices;
namespace sceneTools
{
[ClassInterface(ClassInterfaceType.None)]
[Guid("C0624E23-6085-4e46-9ED1-25CE20A972E9")]
public sealed class ZoomInOut : BaseTool
{
[DllImport("user32")] public static extern int SetCapture(int hwnd);
[DllImport("user32")] public static extern int GetCapture(int fuFlags);
[DllImport("user32")] public static extern int ReleaseCapture(int hwnd);
#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 System.Windows.Forms.Cursor m_pCursor;
private ISceneHookHelper m_pSceneHookHelper;
private long m_lMouseX, m_lMouseY;
private bool m_bInUse;
public ZoomInOut()
{
base.m_category = "Sample_SceneControl(C#)";
base.m_caption = "Zoom In/Out";
base.m_toolTip = "Zoom In/Out";
base.m_name = "Sample_SceneControl(C#)/Zoom In/Out";
base.m_message = "Dynamically zooms in and out on the scene";
//Load resources
string[] res = GetType().Assembly.GetManifestResourceNames();
if(res.GetLength(0) > 0)
{
base.m_bitmap = new System.Drawing.Bitmap(GetType().Assembly.GetManifestResourceStream("sceneTools.ZoomInOut.bmp"));
}
m_pCursor = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("sceneTools.ZOOMINOUT.CUR"));
m_pSceneHookHelper = new SceneHookHelperClass ();
}
public override bool Enabled
{
get
{
if(m_pSceneHookHelper.Scene == null)
return false;
else
return true;
}
}
public override void OnCreate(object hook)
{
m_pSceneHookHelper.Hook = hook;
}
public override int Cursor
{
get
{
return m_pCursor.Handle.ToInt32();
}
}
public override bool Deactivate()
{
return true;
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
//Initialize mouse coordinates
m_bInUse = true;
m_lMouseX = X;
m_lMouseY = Y;
SetCapture(m_pSceneHookHelper.ActiveViewer.hWnd);
}
public override void OnMouseMove(int Button, int Shift, int X, int Y)
{
if(!m_bInUse) return;
//Differences between previous and current mouse coordinates
long dx, dy;
dx = X - m_lMouseX;
dy = Y - m_lMouseY;
if(dx == 0 && dy == 0) return;
//Get the scene viewer's camera
ICamera pCamera = (ICamera) m_pSceneHookHelper.Camera;
//Zoom camera
if(dy < 0)
pCamera.Zoom(1.1);
else if(dy > 0)
pCamera.Zoom(0.9);
//Set mouse coordinates for the next OnMouseMove event
m_lMouseX = X;
m_lMouseY = Y;
//Redraw the scene viewer
ISceneViewer pSceneViewer = (ISceneViewer) m_pSceneHookHelper.ActiveViewer;
pSceneViewer.Redraw(true);
}
public override void OnMouseUp(int Button, int Shift, int X, int Y)
{
if(!m_bInUse) return;
if(GetCapture(m_pSceneHookHelper.ActiveViewer.hWnd) != 0)
ReleaseCapture(m_pSceneHookHelper.ActiveViewer.hWnd);
m_bInUse = false;
}
}
}
[Visual Basic .NET]
ZoomInOut.vb
Imports ESRI.ArcGIS.Analyst3D
Imports ESRI.ArcGIS.GeomeTry
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.ADF.BaseClasses
Imports ESRI.ArcGIS.ADF.CATIDs
Imports System.Runtime.InteropServices
<ComClass(ZoomInOut.ClassId, ZoomInOut.InterfaceId, ZoomInOut.EventsId)> _
Public NotInheritable Class ZoomInOut
Inherits BaseTool
#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 = "8AB8145F-A325-43CA-9D43-B3D1BCAD0010"
Public Const InterfaceId As String = "E4FC28D2-DFFC-4ADE-855A-8C5991CD37D1"
Public Const EventsId As String = "2B16B9AF-D52A-4821-93ED-10F8F7FFA4B7"
#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
Declare Function GetCapture Lib "user32" (ByVal fuFlags As Integer) As Integer
Declare Function SetCapture Lib "user32" (ByVal hwnd As Integer) As Integer
Declare Function ReleaseCapture Lib "user32" (ByVal hwnd As Integer) As Integer
Private m_pCursor As System.Windows.Forms.Cursor
Private m_pSceneHookHelper As ISceneHookHelper
Private m_lMouseX As Long, m_lMouseY As Long
Private m_bInUse As Boolean
' 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 = "Zoom In/Out"
MyBase.m_toolTip = "Zoom In/Out"
MyBase.m_name = "Sample_SceneControl(VB.NET)/Zoom In/Out"
MyBase.m_message = "Dynamically zooms in and out on the scene"
'Load resources
Dim res() As String = GetType(ZoomInOut).Assembly.GetManifestResourceNames()
If res.GetLength(0) > 0 Then
MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(ZoomInOut).Assembly.GetManifestResourceStream("SceneToolsVB.ZoomInOut.bmp"))
End If
m_pCursor = New System.Windows.Forms.Cursor(GetType(ZoomInOut).Assembly.GetManifestResourceStream("SceneToolsVB.ZOOMINOUT.CUR"))
m_pSceneHookHelper = New SceneHookHelperClass
End Sub
Public Overrides Sub OnCreate(ByVal hook As Object)
m_pSceneHookHelper.Hook = hook
End Sub
Public Overrides ReadOnly Property Enabled() As Boolean
Get
If (m_pSceneHookHelper.Scene Is Nothing) Then
Return False
Else
Return True
End If
End Get
End Property
Public Overrides ReadOnly Property Cursor() As Integer
Get
Return m_pCursor.Handle.ToInt32()
End Get
End Property
Public Overrides Function Deactivate() As Boolean
Return True
End Function
Public Overrides Sub OnMouseDown(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer)
'Initialize mouse coordinates
m_bInUse = True
m_lMouseX = X
m_lMouseY = Y
SetCapture(m_pSceneHookHelper.ActiveViewer.hWnd)
End Sub
Public Overrides Sub OnMouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer)
If Not m_bInUse Then
Return
End If
'Differences between previous and current mouse coordinates
Dim dx, dy As Long
dx = X - m_lMouseX
dy = Y - m_lMouseY
If (dx = 0 And dy = 0) Then
Return
End If
'Get the scene viewer's camera
Dim pCamera As ICamera = CType(m_pSceneHookHelper.Camera, ICamera)
'Zoom camera
If (dy < 0) Then
pCamera.Zoom(1.1)
ElseIf (dy > 0) Then
pCamera.Zoom(0.9)
End If
'Set mouse coordinates for the next OnMouseMove event
m_lMouseX = X
m_lMouseY = Y
'Redraw the scene viewer
Dim pSceneViewer As ISceneViewer = CType(m_pSceneHookHelper.ActiveViewer, ISceneViewer)
pSceneViewer.Redraw(True)
End Sub
Public Overrides Sub OnMouseUp(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer)
If Not m_bInUse Then
Return
End If
If (GetCapture(m_pSceneHookHelper.ActiveViewer.hWnd) <> 0) Then
ReleaseCapture(m_pSceneHookHelper.ActiveViewer.hWnd)
End If
m_bInUse = False
End Sub
End Class