紧急求助vb+mapx中数据库绑定如何设定座标?

Dim bindlayer As New bindlayer
 Dim ds As New MapXLib.Dataset
    bindlayer.LayerName = "well"
    bindlayer.FileSpec = App.Path + "\abc.tab"
  下面这段代码用于设定座标,我想设成no earth 米为单位如何设(谁帮我?)
    bindlayer.CoordSys.Set 12, 62, 7, 0
   'set后面很多参数,我想设为非地球米为单位,很多天都弄不好
    bindlayer.LayerType = miBindLayerTypeXY
    bindlayer.RefColumn1 = "x"
    bindlayer.RefColumn2 = "y"