form02.frm

mo 二次开发 实现mo的一般功能

VERSION 5.00
Object = "{9BD6A640-CE75-11D1-AF04-204C4F4F5020}#2.0#0"; "mo20.ocx"
Object = "{6B7E6392-850A-101B-AFC0-4210102A8DA7}#1.3#0"; "COMCTL32.OCX"
Begin VB.Form Form02 
   Caption         =   "华盛顿地图"
   ClientHeight    =   8400
   ClientLeft      =   1140
   ClientTop       =   1515
   ClientWidth     =   9585
   LinkTopic       =   "Form1"
   PaletteMode     =   1  'UseZOrder
   ScaleHeight     =   8400
   ScaleWidth      =   9585
   Begin VB.TextBox Text6 
      Height          =   375
      Left            =   7560
      TabIndex        =   12
      Text            =   "Text1"
      Top             =   4920
      Width           =   1815
   End
   Begin VB.TextBox Text5 
      Height          =   375
      Left            =   7560
      TabIndex        =   10
      Text            =   "Text1"
      Top             =   4200
      Width           =   1815
   End
   Begin VB.TextBox Text4 
      Height          =   375
      Left            =   7560
      TabIndex        =   8
      Text            =   "Text1"
      Top             =   3480
      Width           =   1815
   End
   Begin VB.TextBox Text3 
      Height          =   375
      Left            =   7560
      TabIndex        =   6
      Text            =   "Text1"
      Top             =   2760
      Width           =   1815
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   7560
      TabIndex        =   4
      Text            =   "Text1"
      Top             =   2040
      Width           =   1815
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   7560
      TabIndex        =   2
      Text            =   "Text1"
      Top             =   1320
      Width           =   1815
   End
   Begin VB.CommandButton Command1 
      Caption         =   "显示"
      Height          =   495
      Left            =   7560
      TabIndex        =   1
      Top             =   6840
      Width           =   1455
   End
   Begin MapObjects2.Map Map1 
      Height          =   8175
      Left            =   0
      TabIndex        =   0
      Top             =   120
      Width           =   6735
      _Version        =   131072
      _ExtentX        =   11880
      _ExtentY        =   14420
      _StockProps     =   225
      BackColor       =   16777215
      BorderStyle     =   1
      Contents        =   "form02.frx":0000
   End
   Begin VB.Label Label6 
      Caption         =   "F"
      Height          =   375
      Left            =   7080
      TabIndex        =   13
      Top             =   4920
      Width           =   615
   End
   Begin VB.Label Label5 
      Caption         =   "C"
      Height          =   375
      Left            =   7080
      TabIndex        =   11
      Top             =   4200
      Width           =   615
   End
   Begin VB.Label Label4 
      Caption         =   "E"
      Height          =   375
      Left            =   7080
      TabIndex        =   9
      Top             =   3480
      Width           =   615
   End
   Begin VB.Label Label3 
      Caption         =   "B"
      Height          =   375
      Left            =   7080
      TabIndex        =   7
      Top             =   2760
      Width           =   615
   End
   Begin VB.Label Label2 
      Caption         =   "D"
      Height          =   375
      Left            =   7080
      TabIndex        =   5
      Top             =   2040
      Width           =   615
   End
   Begin VB.Label Label1 
      Caption         =   "A"
      Height          =   375
      Left            =   7080
      TabIndex        =   3
      Top             =   1320
      Width           =   615
   End
   Begin ComctlLib.ImageList ImageList1 
      Left            =   2760
      Top             =   1800
      _ExtentX        =   1005
      _ExtentY        =   1005
      BackColor       =   -2147483643
      ImageWidth      =   16
      ImageHeight     =   16
      MaskColor       =   8421376
      _Version        =   327682
      BeginProperty Images {0713E8C2-850A-101B-AFC0-4210102A8DA7} 
         NumListImages   =   3
         BeginProperty ListImage1 {0713E8C3-850A-101B-AFC0-4210102A8DA7} 
            Picture         =   "form02.frx":001A
            Key             =   ""
         EndProperty
         BeginProperty ListImage2 {0713E8C3-850A-101B-AFC0-4210102A8DA7} 
            Picture         =   "form02.frx":056C
            Key             =   ""
         EndProperty
         BeginProperty ListImage3 {0713E8C3-850A-101B-AFC0-4210102A8DA7} 
            Picture         =   "form02.frx":0ABE
            Key             =   ""
         EndProperty
      EndProperty
   End
End
Attribute VB_Name = "Form02"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Xuewei,2003/5/28
'使用ImageLayer图层调用一个BMP图像，和MapLayer图层叠加；
'通过改变bmpw文件，来改变图像的位置；

Option Explicit
Dim Ws(6) As Single
Dim dataDir As String

Private Sub DrawLayer()
  Dim dc As New DataConnection
  Dim mLayer As New MapLayer
   
  dc.Database = dataDir
  If Not dc.Connect Then
    MsgBox "在指定的文件夹下没找到图层数据文件！"
    End
  End If
  
  Dim iLayer As New ImageLayer
  iLayer.File = dataDir + "\Wash.bmp"
  Map1.Layers.Add iLayer
     
  Set mLayer.GeoDataset = dc.FindGeoDataset("roads")
  mLayer.Symbol.Color = moYellow
  Map1.Layers.Add mLayer
End Sub

Private Sub Command1_Click()
  Map1.Layers.Clear
  WriteBmpwFile
  DrawLayer
End Sub

Private Sub WriteBmpwFile()
  Ws(1) = Text1.Text
  Ws(2) = Text2.Text
  Ws(3) = Text3.Text
  Ws(4) = Text4.Text
  Ws(5) = Text5.Text
  Ws(6) = Text6.Text
    
  Open dataDir + "\Wash.bmpw" For Output As #1
  Print #1, Text1.Text
  Print #1, Text2.Text
  Print #1, Text3.Text
  Print #1, Text4.Text
  Print #1, Text5.Text
  Print #1, Text6.Text
  Close #1
End Sub

'找到各子字符串；
Private Sub TrimStr(Str As String)
  Dim Str0 As String
  Dim Str1 As String
  Dim Str2 As String
  Dim i As Integer, j As Integer, k As Integer
  Dim Sbl As Boolean
  
  Str2 = Str
  Str1 = ""
  Sbl = False
  j = 1
  k = 1
  
  For i = 1 To Len(Str)
    Str0 = Mid(Str2, 1, 1)
    If Asc(Str0) = 32 Or Asc(Str0) = 10 Then
      j = j + 1
    Else
      Str1 = Str1 & Str0
      
      Sbl = True
      j = 1
    End If
    Str2 = Mid(Str2, 2, Len(Str2) - 1)
    If j > 1 And Sbl Then
      Ws(k) = Str1
      Str1 = ""
      k = k + 1
      Sbl = False
    End If
  Next i
End Sub

Private Sub ReadBmpwFile()
  Dim Str1 As String, Str2 As String
  Dim i As Integer
  
  Open dataDir + "\Wash.bmpw" For Input As #1
  Str1 = "   "
  i = 0
  Do While Not EOF(1)
    Line Input #1, Str2
    Str1 = Str1 & Str2 & "  "
    i = i + 1
  Loop
  TrimStr Str1
  Close #1
  
  Text1.Text = Ws(1)
  Text2.Text = Ws(2)
  Text3.Text = Ws(3)
  Text4.Text = Ws(4)
  Text5.Text = Ws(5)
  Text6.Text = Ws(6)
End Sub

Private Sub Form_Load()
  dataDir = App.Path + "\..\" + "Washington"
  ReadBmpwFile
  DrawLayer
End Sub