About the Custom scene navigation commands Sample
[C#]
Navigate.cs
using System;
using System.Drawing;
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("9A3B648E-4543-438c-84C1-41CC6AD29A81")]
public sealed class Navigate : BaseTool
{
[DllImport("user32")] public static extern int SetCapture(int hwnd);
[DllImport("user32")] public static extern int SetCursor(int hCursor);
[DllImport("user32")] public static extern int GetClientRect(int hwnd, ref Rectangle lpRect);
[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 ISceneHookHelper m_pSceneHookHelper;
private bool m_bInUse;
private bool m_bGesture;
private bool bCancel = false;
private long m_lMouseX, m_lMouseY;
private bool m_bSpinning;
private double m_dSpinStep;
private System.Windows.Forms.Cursor m_pCursorNav;
private System.Windows.Forms.Cursor m_pCursorPan;
private System.Windows.Forms.Cursor m_pCursorZoom;
private System.Windows.Forms.Cursor m_pCursorGest;
public Navigate()
{
base.m_category = "Sample_SceneControl(C#)";
base.m_caption = "Navigate";
base.m_toolTip = "Navigate";
base.m_name = "Sample_SceneControl(C#)/Navigate";
base.m_message = "Navigates 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.Navigation.bmp"));
}
m_pCursorNav = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("sceneTools.navigation.cur"));
m_pCursorPan = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("sceneTools.movehand.cur"));
m_pCursorZoom = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("sceneTools.ZOOMINOUT.CUR"));
m_pCursorGest = new System.Windows.Forms.Cursor(GetType().Assembly.GetManifestResourceStream("sceneTools.gesture.cur"));
m_pSceneHookHelper = new SceneHookHelperClass ();
}
public override void OnCreate(object hook)
{
m_pSceneHookHelper.Hook = hook;
if(m_pSceneHookHelper != null)
{
m_bGesture = m_pSceneHookHelper.ActiveViewer.GestureEnabled;
m_bSpinning = false;
}
}
public override bool Enabled
{
get
{
//Disable if orthographic (2D) view
if(m_pSceneHookHelper.Hook == null || m_pSceneHookHelper.Scene == null)
return false;
else
{
ICamera pCamera = (ICamera) m_pSceneHookHelper.Camera;
if(pCamera.ProjectionType == esri3DProjectionType.esriOrthoProjection)
return false;
else
return true;
}
}
}
public override int Cursor
{
get
{
if(m_bGesture == true)
return m_pCursorGest.Handle.ToInt32();
else
return m_pCursorNav.Handle.ToInt32();
}
}
public override bool Deactivate()
{
return true;
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
if (Button == 3)
bCancel = true;
else
{
m_bInUse = true;
SetCapture(m_pSceneHookHelper.ActiveViewer.hWnd);
m_lMouseX = X;
m_lMouseY = Y;
}
}
public override void OnMouseMove(int Button, int Shift, int X, int Y)
{
if(m_bInUse == false) return;
if(X - m_lMouseX == 0 && Y - m_lMouseY == 0) return;
long dx, dy;
dx = X - m_lMouseX;
dy = Y - m_lMouseY;
//If right mouse clicked
if (Button == 2)
{
//Set the zoom cursor
SetCursor(m_pCursorZoom.Handle.ToInt32());
if (dy < 0)
m_pSceneHookHelper.Camera.Zoom(1.1);
else if (dy > 0)
m_pSceneHookHelper.Camera.Zoom(0.9);
}
//If two mouse buttons clicked
if(Button == 3)
{
//Set the pan cursor
SetCursor(m_pCursorPan.Handle.ToInt32());
//Create a point with previous mouse coordinates
IPoint pStartPoint;
pStartPoint = new PointClass();
pStartPoint.PutCoords((double) m_lMouseX, (double) m_lMouseY);
//Create point with a new mouse coordinates
IPoint pEndPoint;
pEndPoint = new PointClass();
pEndPoint.PutCoords((double) X, (double) Y);
//Pan camera
m_pSceneHookHelper.Camera.Pan(pStartPoint, pEndPoint);
}
//If left mouse clicked
if(Button == 1)
{
//If scene viewer gesturing is disabled move the camera observer
if(m_bGesture == false)
m_pSceneHookHelper.Camera.PolarUpdate(1, dx, dy, true);
else
{
//if camera already spinning
if(m_bSpinning == true)
{
//Move the camera observer
m_pSceneHookHelper.Camera.PolarUpdate(1, dx, dy, true);
}
else
{
//Windows API call to get windows client coordinates
Rectangle rect;
rect = new Rectangle();
GetClientRect(m_pSceneHookHelper.ActiveViewer.hWnd, ref rect);
//Recalculate the spin step
if(dx < 0)
m_dSpinStep = (180.0 / rect.Right - rect.Left ) * (dx - m_pSceneHookHelper.ActiveViewer.GestureSensitivity);
else
m_dSpinStep = (180.0 / rect.Right - rect.Left) * (dx + m_pSceneHookHelper.ActiveViewer.GestureSensitivity);
//Start spinning
StartSpin();
}
}
}
//Set Mouse coordinates for the next
//OnMouse Event
m_lMouseX = X;
m_lMouseY = Y;
//Redraw the scene viewer
m_pSceneHookHelper.ActiveViewer.Redraw(true);
}
public override void OnMouseUp(int Button, int Shift, int X, int Y)
{
//Set the navigation cursor
if(m_bGesture == true)
SetCursor(m_pCursorGest.Handle.ToInt32());
else
SetCursor(m_pCursorNav.Handle.ToInt32());
if(GetCapture(m_pSceneHookHelper.ActiveViewer.hWnd) != 0)
ReleaseCapture(m_pSceneHookHelper.ActiveViewer.hWnd);
}
public void StartSpin()
{
m_bSpinning = true;
//Get IMessageDispatcher interface
IMessageDispatcher pMessageDispatcher;
pMessageDispatcher = new MessageDispatcherClass();
//Set the ESC key to be seen as a cancel action
pMessageDispatcher.CancelOnClick = false;
pMessageDispatcher.CancelOnEscPress = true;
do
{
//Move the camera observer
m_pSceneHookHelper.Camera.PolarUpdate(1, m_dSpinStep, 0, true);
//Redraw the scene viewer
m_pSceneHookHelper.ActiveViewer.Redraw(true);
//Dispatch any waiting messages: OnMouseMove/ OnMouseDown/ OnKeyUp/ OnKeyDown events
object b_oCancel;
pMessageDispatcher.Dispatch(m_pSceneHookHelper.ActiveViewer.hWnd, false, out b_oCancel);
if(bCancel == true)
m_bSpinning = false;
}
while(bCancel == false);
bCancel = false;
}
public override void OnKeyDown(int keyCode, int Shift)
{
if (keyCode == 27)
{
bCancel = true;
SetCursor(m_pCursorNav.Handle.ToInt32());
}
switch(Shift)
{
case 1: //Shift key
//Set pan cursor
SetCursor(m_pCursorPan.Handle.ToInt32());
break;
case 2: //Control key
//Set ZoomIn/Out cursor
SetCursor(m_pCursorZoom.Handle.ToInt32());
break;
case 3: //shift + control keys
//Set scene viewer gesture enabled property
if(m_bSpinning == false)
{
if(m_bGesture == true)
{
m_pSceneHookHelper.ActiveViewer.GestureEnabled = false;
m_bGesture = false;
SetCursor(m_pCursorNav.Handle.ToInt32());
}
else
{
m_pSceneHookHelper.ActiveViewer.GestureEnabled = true;
m_bGesture = true;
SetCursor(m_pCursorGest.Handle.ToInt32());
}
}
break;
default:
return;
}
}
public override void OnKeyUp(int keyCode, int Shift)
{
if(Shift == 1) //Shift key
{
//Pan the camera
switch(keyCode)
{
case 38: //Up key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveDown, 0.01);
break;
case 40: //Down key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveUp, 0.01);
break;
case 37: //Left key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveRight, 0.01);
break;
case 39: // Right key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveLeft, 0.01);
break;
default:
return;
}
}
else if(Shift == 2) //Control key
{
//Move camera in/out or turn camera around the observer
switch(keyCode)
{
case 38:
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveAway, 0.01);
break;
case 40:
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveToward, 0.01);
break;
case 37:
m_pSceneHookHelper.Camera.HTurnAround(-1);
break;
case 39:
m_pSceneHookHelper.Camera.HTurnAround(1);
break;
default:
return;
}
}
else
{
double d = 5, dAltitude = 2, dAzimuth = 2;
//Move the camera observer by the given polar
//increments or increase/decrease the spin speed
switch(keyCode)
{
case 38:
m_pSceneHookHelper.Camera.PolarUpdate(1, 0, -dAltitude * d, true);
break;
case 40:
m_pSceneHookHelper.Camera.PolarUpdate(1, 0, dAltitude * d, true);
break;
case 37:
m_pSceneHookHelper.Camera.PolarUpdate(1, dAzimuth * d, 0, true);
break;
case 39:
m_pSceneHookHelper.Camera.PolarUpdate(1, -dAzimuth * d, 0, true);
break;
case 33: //Page Up
m_dSpinStep = m_dSpinStep * 1.1;
break;
case 34: //Page Down
m_dSpinStep = m_dSpinStep / 1.1;
break;
default:
return;
}
}
//Set the navigation cursor
if(m_bGesture == true)
SetCursor(m_pCursorGest.Handle.ToInt32());
else
SetCursor(m_pCursorNav.Handle.ToInt32());
//Redraw the scene viewer
m_pSceneHookHelper.ActiveViewer.Redraw(true);
}
}
}
[Visual Basic .NET]
Navigate.vb
Imports System.Drawing
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(Navigate.ClassId, Navigate.InterfaceId, Navigate.EventsId)> _
Public NotInheritable Class Navigate
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 = "E4BDFC47-0845-4DF1-B4B4-637EF86C299A"
Public Const InterfaceId As String = "12F31942-BCB1-487C-9790-DB497983B5C7"
Public Const EventsId As String = "2D9B12D3-59E9-4C0E-8218-FBD220446757"
#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 GetClientRect Lib "user32" (ByVal hwnd As Integer, ByRef lpRect As Rectangle) As Integer
Declare Function GetCapture Lib "user32" (ByVal fuFlags As Integer) As Integer
Declare Function SetCapture Lib "user32" (ByVal hwnd As Integer) As Integer
Declare Function SetCursor Lib "user32" (ByVal hCursor As Integer) As Integer
Declare Function ReleaseCapture Lib "user32" (ByVal hwnd As Integer) As Integer
Private m_pSceneHookHelper As ISceneHookHelper
Private m_bInUse As Boolean
Private m_bGesture As Boolean
Private bCancel As Boolean = False
Private m_lMouseX, m_lMouseY As Long
Private m_bSpinning As Boolean
Private m_dSpinStep As Double
Private m_pCursorNav As System.Windows.Forms.Cursor
Private m_pCursorPan As System.Windows.Forms.Cursor
Private m_pCursorZoom As System.Windows.Forms.Cursor
Private m_pCursorGest As System.Windows.Forms.Cursor
' 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 = "Navigate"
MyBase.m_toolTip = "Navigate"
MyBase.m_name = "Sample_SceneControl(VB.NET)/Navigate"
MyBase.m_message = "Navigates the scene"
'Load resources
Dim res() As String = GetType(Navigate).Assembly.GetManifestResourceNames()
If res.GetLength(0) > 0 Then
MyBase.m_bitmap = New System.Drawing.Bitmap(GetType(Navigate).Assembly.GetManifestResourceStream("SceneToolsVB.Navigation.bmp"))
End If
m_pCursorNav = New System.Windows.Forms.Cursor(GetType(Navigate).Assembly.GetManifestResourceStream("SceneToolsVB.navigation.cur"))
m_pCursorPan = New System.Windows.Forms.Cursor(GetType(Navigate).Assembly.GetManifestResourceStream("SceneToolsVB.movehand.cur"))
m_pCursorZoom = New System.Windows.Forms.Cursor(GetType(Navigate).Assembly.GetManifestResourceStream("SceneToolsVB.ZOOMINOUT.CUR"))
m_pCursorGest = New System.Windows.Forms.Cursor(GetType(Navigate).Assembly.GetManifestResourceStream("SceneToolsVB.gesture.cur"))
m_pSceneHookHelper = New SceneHookHelperClass
End Sub
Public Overrides Sub OnCreate(ByVal hook As Object)
m_pSceneHookHelper.Hook = hook
If (Not m_pSceneHookHelper Is Nothing) Then
m_bGesture = m_pSceneHookHelper.ActiveViewer.GestureEnabled
m_bSpinning = False
End If
End Sub
Public Overrides ReadOnly Property Enabled() As Boolean
Get
'Disable if orthographic (2D) view
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)
If (pCamera.ProjectionType = esri3DProjectionType.esriOrthoProjection) Then
Return False
Else
Return True
End If
End If
End Get
End Property
Public Overrides ReadOnly Property Cursor() As Integer
Get
If (m_bGesture = True) Then
Return m_pCursorGest.Handle.ToInt32()
Else
Return m_pCursorNav.Handle.ToInt32()
End If
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)
If (Button = 3) Then
bCancel = True
Else
m_bInUse = True
SetCapture(m_pSceneHookHelper.ActiveViewer.hWnd)
m_lMouseX = X
m_lMouseY = Y
End If
End Sub
Public Overrides Sub OnMouseMove(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer)
If (m_bInUse = False) Then
Return
End If
If (X - m_lMouseX = 0 And Y - m_lMouseY = 0) Then
Return
End If
Dim dx, dy As Long
dx = X - m_lMouseX
dy = Y - m_lMouseY
'If right mouse clicked
If (Button = 2) Then
'Set the zoom cursor
SetCursor(m_pCursorZoom.Handle.ToInt32())
If (dy < 0) Then
m_pSceneHookHelper.Camera.Zoom(1.1)
ElseIf (dy > 0) Then
m_pSceneHookHelper.Camera.Zoom(0.9)
End If
End If
'If two mouse buttons clicked
If (Button = 3) Then
'Set the pan cursor
SetCursor(m_pCursorPan.Handle.ToInt32())
'Create a point with previous mouse coordinates
Dim pStartPoint As IPoint
pStartPoint = New PointClass
pStartPoint.PutCoords(m_lMouseX, m_lMouseY)
'Create point with a new mouse coordinates
Dim pEndPoint As IPoint
pEndPoint = New PointClass
pEndPoint.PutCoords(X, Y)
'Pan camera
m_pSceneHookHelper.Camera.Pan(pStartPoint, pEndPoint)
End If
'If left mouse clicked
If (Button = 1) Then
'If scene viewer gesturing is disabled move the camera observer
If (m_bGesture = False) Then
m_pSceneHookHelper.Camera.PolarUpdate(1, dx, dy, True)
Else
'If camera already spinning
If (m_bSpinning = True) Then
'Move the camera observer
m_pSceneHookHelper.Camera.PolarUpdate(1, dx, dy, True)
Else
'Windows API call to get windows client coordinates
Dim rect As Rectangle
rect = New Rectangle
GetClientRect(m_pSceneHookHelper.ActiveViewer.hWnd, rect)
'Recalculate the spin step
If (dx < 0) Then
m_dSpinStep = (180.0 / rect.Right - rect.Left) * (dx - m_pSceneHookHelper.ActiveViewer.GestureSensitivity)
Else
m_dSpinStep = (180.0 / rect.Right - rect.Left) * (dx + m_pSceneHookHelper.ActiveViewer.GestureSensitivity)
End If
'Start spinning
StartSpin()
End If
End If
End If
'Set Mouse coordinates for the next
'OnMouse Event
m_lMouseX = X
m_lMouseY = Y
'Redraw the scene viewer
m_pSceneHookHelper.ActiveViewer.Redraw(True)
End Sub
Public Sub StartSpin()
m_bSpinning = True
'Get IMessageDispatcher interface
Dim pMessageDispatcher As IMessageDispatcher
pMessageDispatcher = New MessageDispatcherClass
'Set the ESC key to be seen as a cancel action
pMessageDispatcher.CancelOnClick = False
pMessageDispatcher.CancelOnEscPress = True
Do
'Move the camera observer
m_pSceneHookHelper.Camera.PolarUpdate(1, m_dSpinStep, 0, True)
'Redraw the scene viewer
m_pSceneHookHelper.ActiveViewer.Redraw(True)
'Dispatch any waiting messages: OnMouseMove/ OnMouseDown/ OnKeyUp/ OnKeyDown events
Dim b_oCancel As Object = Nothing
pMessageDispatcher.Dispatch(m_pSceneHookHelper.ActiveViewer.hWnd, False, b_oCancel)
If (bCancel = True) Then
m_bSpinning = False
End If
Loop While (bCancel = False)
bCancel = False
End Sub
Public Overrides Sub OnKeyDown(ByVal keyCode As Integer, ByVal Shift As Integer)
If (keyCode = 27) Then
bCancel = True
SetCursor(m_pCursorNav.Handle.ToInt32())
End If
Select Case Shift
Case 1 'Shift key
SetCursor(m_pCursorPan.Handle.ToInt32())
Case 2 'Control key
SetCursor(m_pCursorZoom.Handle.ToInt32())
Case 3 'shift + control key
'Set scene viewer gesture enabled property
If (m_bSpinning = False) Then
If (m_bGesture = True) Then
m_pSceneHookHelper.ActiveViewer.GestureEnabled = False
m_bGesture = False
SetCursor(m_pCursorNav.Handle.ToInt32())
Else
m_pSceneHookHelper.ActiveViewer.GestureEnabled = True
m_bGesture = True
SetCursor(m_pCursorGest.Handle.ToInt32())
End If
End If
Case Else
Return
End Select
End Sub
Public Overrides Sub OnKeyUp(ByVal keyCode As Integer, ByVal Shift As Integer)
If (Shift = 1) Then
'Pan the camera
Select Case keyCode
Case 38 'Up key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveDown, 0.01)
Case 40 ' Down key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveUp, 0.01)
Case 37 'Left key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveRight, 0.01)
Case 39 'Right key
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveLeft, 0.01)
Case Else
Return
End Select
ElseIf (Shift = 2) Then 'Control key
'Move camera in/out or turn camera around the observer
Select Case keyCode
Case 38
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveAway, 0.01)
Case 40
m_pSceneHookHelper.Camera.Move(esriCameraMovementType.esriCameraMoveToward, 0.01)
Case 37
m_pSceneHookHelper.Camera.HTurnAround(-1)
Case 39
m_pSceneHookHelper.Camera.HTurnAround(1)
Case Else
Return
End Select
Else
Dim d, dAltitude, dAzimuth As Double
d = 5
dAltitude = 2
dAzimuth = 2
'Move the camera observer by the given polar
'increments or increase/decrease the spin speed
Select Case keyCode
Case 38
m_pSceneHookHelper.Camera.PolarUpdate(1, 0, -dAltitude * d, True)
Case 40
m_pSceneHookHelper.Camera.PolarUpdate(1, 0, dAltitude * d, True)
Case 37
m_pSceneHookHelper.Camera.PolarUpdate(1, dAzimuth * d, 0, True)
Case 39
m_pSceneHookHelper.Camera.PolarUpdate(1, -dAzimuth * d, 0, True)
Case 33 ' Page up
m_dSpinStep = m_dSpinStep * 1.1
Case 34 ' Page down
m_dSpinStep = m_dSpinStep / 1.1
Case Else
Return
End Select
End If
'Set the navigation cursor
If (m_bGesture = True) Then
SetCursor(m_pCursorGest.Handle.ToInt32())
Else
SetCursor(m_pCursorNav.Handle.ToInt32())
End If
'Redraw the scene viewer
m_pSceneHookHelper.ActiveViewer.Redraw(True)
End Sub
Public Overrides Sub OnMouseUp(ByVal Button As Integer, ByVal Shift As Integer, ByVal X As Integer, ByVal Y As Integer)
'Set the navigation cursor
If (m_bGesture = True) Then
SetCursor(m_pCursorGest.Handle.ToInt32())
Else
SetCursor(m_pCursorNav.Handle.ToInt32())
End If
If (GetCapture(m_pSceneHookHelper.ActiveViewer.hWnd) <> 0) Then
ReleaseCapture(m_pSceneHookHelper.ActiveViewer.hWnd)
End If
End Sub
End Class