form03.frm

来自「一个关于基于MO编程的参考资料希望对大家的交流和学习有帮助」· FRM 代码 · 共 76 行

VERSION 5.00
Object = "{9BD6A640-CE75-11D1-AF04-204C4F4F5020}#2.0#0"; "mo20.ocx"
Begin VB.Form Form03 
   Caption         =   "画线"
   ClientHeight    =   3630
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   4245
   LinkTopic       =   "Form1"
   ScaleHeight     =   3630
   ScaleWidth      =   4245
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command1 
      Caption         =   "画线"
      Height          =   495
      Left            =   1320
      TabIndex        =   1
      Top             =   3120
      Width           =   1335
   End
   Begin MapObjects2.Map Map1 
      Height          =   3015
      Left            =   0
      TabIndex        =   0
      Top             =   0
      Width           =   4215
      _Version        =   131072
      _ExtentX        =   7435
      _ExtentY        =   5318
      _StockProps     =   225
      BackColor       =   16777215
      BorderStyle     =   1
      Contents        =   "form03.frx":0000
   End
End
Attribute VB_Name = "Form03"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Xuewei,2003/5/7
'程序画线。
Option Explicit

Dim g_Line As MapObjects2.Line
Dim Pts As MapObjects2.Points

Private Sub Command1_Click()
  Dim p As Point
  Set g_Line = New MapObjects2.Line
  Set Pts = New MapObjects2.Points
  Set p = Map1.ToMapPoint(100, 100)
  Pts.Add p
  Set p = Map1.ToMapPoint(3500, 1500)
  Pts.Add p
  g_Line.Parts.Add Pts
  Set Pts = g_Line.Parts(0)
  Map1.Refresh
End Sub

Private Sub Map1_AfterTrackingLayerDraw(ByVal hDC As stdole.OLE_HANDLE)
  If Not g_Line Is Nothing Then
    If Pts.Count > 1 Then
      Dim sym As New Symbol
      sym.Color = moRed
      sym.SymbolType = moLineSymbol
      sym.Size = 5
      Map1.DrawShape g_Line, sym
    End If
  End If
End Sub