VB.NET使用SharpMap加载Shape文件的详细步骤

在VB.NET中,使用SharpMap库打开和显示Shape文件的步骤如下:

  1. 读取Shape文件
    vbnet Dim shpPath As String = "C:pathtoyourshapefile.shp" Dim shpFile As New Shapefile(shpPath)
  2. 创建图层
    vbnet Dim layer As New VectorLayer("MyShapefile", shpFile) layer.Style.EnableDefaultStyle = True
  3. 设置投影
    vbnet Dim wgs84 As Projection = ProjNet.CoordinateSystems.Transformations.CoordinateSystemFactory.CreateFromEpsgCode(4326) layer.SRID = wgs84.EpsgCode layer.DataSource.Projection = wgs84
  4. 创建地图
    vbnet Dim map As New BasicMap(New Size(800, 600)) map.Layers.Add(layer) map.ZoomToMaxExtents()
  5. 显示地图
    vbnet Dim mapControl As New MapControl() mapControl.Map = map Me.Controls.Add(mapControl)
    确保Shape文件路径正确,文件完整,并根据需要调整样式和处理属性数据。
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