1，实现图元根据数据库中X,Y字段的数据变化而改变位置

2，自己要另起一个线程，更改数据库的x，y的值

Private Sub Form_Load()

'1创建图层
Dim lyr As Layer
Set lyr = Map1.Layers.CreateLayer("Car")
Set Map1.Layers.AnimationLayer = lyr '定义为动态图层

'2新建图元
Dim newobj As New MapXLib.Feature 'stand-alone object
Dim obj As MapXLib.Feature 'to hold feature added to layer
Dim NewStyle As New MapXLib.Style
Dim str As String

newobj.Attach Map1

With NewStyle
.SymbolType = miSymbolTypeBitmap
.SymbolBitmapSize = 24
.SymbolBitmapTransparent = True
.SymbolBitmapName = "CAR1-32.BMP"
End With
newobj.Style = NewStyle '设置图元样式

newobj.Type = miFeatureTypeSymbol '设置图元类型

Set obj = Map1.Layers(1).AddFeature(newobj)

obj.Update

End Sub

Private Sub Timer1_Timer()

timer1.Interval = 1000

Dim lyr As MapXLib.Layer
Set lyr = Map1.Layers("Car")

Dim ftr As New MapXLib.Feature
Dim ftrs As New MapXLib.Features

Set ftr = lyr.AllFeatures.Item(1)
'**********************连接数据库

Set conn = New ADODB.Connection
Set rs = New ADODB.Recordset

conn.ConnectionString = "Driver={sql server};server=127.0.0.1;uid=sa;pwd=password;database=databaseName"
conn.ConnectionTimeout = 10
conn.Open
rs.Open "select x,y from X_Y",conn,adOpenStatic,adLockReadOnly,adCmdText
'**********************连接数据库
ftr.Point.Set rs.Fields("x").Value,rs.Fields("y").Value '设置图元位置
ftr.Update

End Sub