Private Sub Map1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Dim x1 As Double
Dim y1 As Double
Dim x2 As Double
Dim y2 As Double
Dim sngTemp As Single
Dim tempZoom As Integer
On Error Resume Next
Map1.NumericCoordSys.Set miLongLat, 0 '将屏幕坐标转变为经纬度坐标
If Button = vbLeftButton And Map1.CurrentTool = mtZoomInOut Then
While boolButtonMove
If Abs(Y - Map1.MapScreenHeight / 2) > Map1.MapScreenHeight / 1000 Then
If Y > Map1.MapScreenHeight / 2 And Y >= sglY Then
'缩小
tempZoom = Map1.Zoom + 10 * Abs(Y - Map1.MapScreenHeight / 2) / Map1.MapScreenHeight
If tempZoom < 600 And tempZoom > 0 Then
Map1.Zoom = tempZoom
End If
sglY = Y
ElseIf Y < Map1.MapScreenHeight / 2 And Y <= sglY Then
'放大\
tempZoom = MainForm.Map1.Zoom - 10 * Abs(Y - Map1.MapScreenHeight / 2) /Map1.MapScreenHeight
If tempZoom > 0 And tempZoom < 600 Then
Map1.Zoom = tempZoom
Else
If Map1.Zoom > 0.001 Then
Map1.Zoom = Map1.Zoom / 2
End If
End If
sglY = Y
End If
End If
DoEvents
Wend
End If
End Sub