如何用DotSpatial将有投影的图层以度为单位显示

[miaowumi92]

大家好，我是个学生，最近在基于DotSpatial做二次开发，遇到这么个问题，就是Beijing_1954_3_Degree_GK_CM_102E的图层以米为单位显示，怎么能让他以经纬度为单位显示呢？图层的prj信息：PROJCS["Beijing_1954_3_Degree_GK_CM_102E",GEOGCS["GCS_Beijing_1954",DATUM["D_Beijing_1954",SPHEROID["Krasovsky_1940",6378245,298.3]],PRIMEM["Greenwich",0],UNIT["Degree",0.0174532925199433]], PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",500000],PARAMETER["False_Northing",0],PARAMETER["Central_Meridian",102],PARAMETER["Scale_Factor",1],PARAMETER["Latitude_Of_Origin",0],UNIT["Meter",1]

[miaowumi92]

自己解决啦。把ExtentProjection设置成所需投影就好啦。 默认工作空间显示坐标系 public ProjectionInfo baseProject = KnownCoordinateSystems.Geographic.Asia.Beijing1954; ExtentProjection = baseProject;