digitizetinpoint.cls

arcgis 编程学习事例

VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "DigitizeTinPoint"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = True

' Copyright 1995-2004 ESRI

' All rights reserved under the copyright laws of the United States.

' You may freely redistribute and use this sample code, with or without modification.

' Disclaimer: THE SAMPLE CODE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 
' WARRANTIES, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
' FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ESRI OR 
' CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 
' OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
' SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
' INTERRUPTION) SUSTAINED BY YOU OR A THIRD PARTY, HOWEVER CAUSED AND ON ANY 
' THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ARISING IN ANY 
' WAY OUT OF THE USE OF THIS SAMPLE CODE, EVEN IF ADVISED OF THE POSSIBILITY OF 
' SUCH DAMAGE.

' For additional information contact: Environmental Systems Research Institute, Inc.

' Attn: Contracts Dept.

' 380 New York Street

' Redlands, California, U.S.A. 92373 

' Email: [e-mail]

Option Explicit

Implements ICommand
Implements ITool

Private m_pApp As IApplication
Private m_pActiveView As IActiveView
Private m_pDispTrans As IDisplayTransformation

Private m_lCursor As Long

Private Sub FreeVariables()
  Set m_pActiveView = Nothing
  Set m_pDispTrans = Nothing
End Sub

Private Sub Class_Terminate()
  FreeVariables
  Set m_pApp = Nothing
End Sub

Private Property Get ICommand_Bitmap() As esrisystem.OLE_HANDLE
  ICommand_Bitmap = frmDigitizeTinPoint.Command1.Picture
End Property

Private Property Get ICommand_Caption() As String
  ICommand_Caption = "Digitize TIN Point Tool"
End Property

Private Property Get ICommand_Category() As String
  ICommand_Category = "3D TIN Editing Samples"
End Property

Private Property Get ICommand_Checked() As Boolean

End Property

Private Property Get ICommand_Enabled() As Boolean
  On Error GoTo EH
  
  Dim pSurf As ISurface
  Set pSurf = miscUtil.GetCurrentSurface(m_pApp)
  If (Not pSurf Is Nothing) Then
    If (TypeOf pSurf Is ITinEdit) Then
      Dim pTE As ITinEdit
      Set pTE = pSurf
      If (pTE.IsInEditMode) Then
        ICommand_Enabled = True
        Exit Property
      End If
    End If
  End If
  ' In case user clicks command to stop editing while this tool is active
  If (frmDigitizeTinPoint.Visible = True) Then
    frmDigitizeTinPoint.Hide
  End If
  ICommand_Enabled = False
  Exit Property
EH:
  ICommand_Enabled = False
End Property

Private Property Get ICommand_HelpContextID() As Long

End Property

Private Property Get ICommand_HelpFile() As String

End Property

Private Property Get ICommand_Message() As String
  ICommand_Message = "Adds a point to a TIN"
End Property

Private Property Get ICommand_Name() As String
  ICommand_Name = "SurfaceAnalysisDigitizeTinPoint"
End Property

Private Sub ICommand_OnClick()
  Dim pMxDoc As IMxDocument
  Set pMxDoc = m_pApp.Document
  
  Set m_pActiveView = pMxDoc.ActiveView
      
  Set m_pDispTrans = m_pActiveView.ScreenDisplay.DisplayTransformation
  
  'm_lCursor = frmDigitizeTinLine.cmdCross.MouseIcon
  
  frmDigitizeTinPoint.Init miscUtil.GetCurrentSurface(m_pApp)

  Dim lRes As Long
  lRes = ShowWindow(frmDigitizeTinPoint.hwnd, SW_SHOWNORMAL)
End Sub

Private Sub ICommand_OnCreate(ByVal hook As Object)
  Set m_pApp = hook
End Sub

Private Property Get ICommand_Tooltip() As String
  ICommand_Tooltip = "Add TIN Point"
End Property

Private Property Get ITool_Cursor() As esrisystem.OLE_HANDLE
  'ITool_Cursor = m_lCursor
End Property

Private Function ITool_Deactivate() As Boolean
  frmDigitizeTinPoint.Hide
  FreeVariables
  ITool_Deactivate = True
End Function

Private Function ITool_OnContextMenu(ByVal X As Long, ByVal Y As Long) As Boolean

End Function

Private Sub ITool_OnDblClick()

End Sub

Private Sub ITool_OnKeyDown(ByVal keyCode As Long, ByVal Shift As Long)

End Sub

Private Sub ITool_OnKeyUp(ByVal keyCode As Long, ByVal Shift As Long)

End Sub

Private Sub ITool_OnMouseDown(ByVal Button As Long, ByVal Shift As Long, ByVal X As Long, ByVal Y As Long)

  On Error GoTo EH
  
  Dim pPnt As IPoint
  Set pPnt = m_pDispTrans.ToMapPoint(X, Y)

  If (Button = 1) Then ' add another point
  
    Dim pLayer As ITinLayer
    Set pLayer = miscUtil.GetCurrentSurfaceLayer(m_pApp)
    
    Dim pSurf As ITinSurface
    Set pSurf = pLayer.Dataset
    
    Dim bTOCModified As Boolean
    bTOCModified = False
       
    Dim pTinEdit As ITinEdit
    Set pTinEdit = pSurf
    
    Dim lSFType As esriTinSurfaceType
    lSFType = esriTinMassPoint
    
    Dim lZSource As Long
    lZSource = frmDigitizeTinPoint.GetHeightSource
    
    Select Case lZSource
      Case 1
        Dim pZ As IPoint
        pSurf.InterpolateShape pPnt, pZ
        pTinEdit.AddShape pZ, lSFType, 0
      Case 2
        Dim dZ As Double
        dZ = frmDigitizeTinPoint.GetHeight
        pTinEdit.AddShape pPnt, lSFType, 0, dZ
        
        If (tinUtil.FindTinRenderer(pLayer, "Elevation") <> -1) Then
          bTOCModified = tinUtil.CheckTinLegendZRange(pLayer, dZ)
        End If
    End Select
                      
    If (bTOCModified) Then
      If (TypeOf m_pApp Is IMxApplication) Then
        Dim pMxDoc As IMxDocument
        Set pMxDoc = m_pApp.Document
        pMxDoc.CurrentContentsView.Refresh 0 ' 0 seems to work for any position of layer in toc
      End If
    End If
         
    If (TypeOf m_pApp Is IMxApplication) Then
      Dim pDoc As IMxDocument
      Set pDoc = m_pApp.Document
      pDoc.ActiveView.Refresh
      'pActiveView.PartialRefresh esriDPGeography, pLayer, pActiveView.Extent
    End If
    
    
  End If
  
  Exit Sub
EH:
  MsgBox Err.Source & " " & Err.Description, vbCritical, "DigitizeTinPoint:OnMouseDown"
End Sub

Private Sub ITool_OnMouseMove(ByVal Button As Long, ByVal Shift As Long, ByVal X As Long, ByVal Y As Long)

End Sub

Private Sub ITool_OnMouseUp(ByVal Button As Long, ByVal Shift As Long, ByVal X As Long, ByVal Y As Long)

End Sub

Private Sub ITool_Refresh(ByVal hDC As esrisystem.OLE_HANDLE)

End Sub