WGS84坐标系如何将中央经线设置为180,投影信息如下
<?xml version="1.0" encoding="GB2312"?>
<SuperMapProjection xmlns:sml="http://www.supermap.com/sml" sml:Version="20090106">
<sml:CoordinateReferenceSystem>
<sml:Name>Longitude / Latitude Coordinate System---GCS_WGS_1984</sml:Name>
<sml:Type>1</sml:Type>
<sml:Units>METER</sml:Units>
<sml:DistUnits>METER</sml:DistUnits>
<sml:GeographicCoordinateSystem>
<sml:Name>GCS_WGS_1984</sml:Name>
<sml:Type>4326</sml:Type>
<sml:Units>DEGREE</sml:Units>
<sml:DistUnits>METER</sml:DistUnits>
<sml:HorizontalGeodeticDatum>
<sml:Name>D_WGS_1984</sml:Name>
<sml:Type>6326</sml:Type>
<sml:Spheroid>
<sml:Name>WGS_1984</sml:Name>
<sml:Type>7030</sml:Type>
<sml:SemiMajorAxis>6378137</sml:SemiMajorAxis>
<sml:InverseFlattening>298.257223563</sml:InverseFlattening>
</sml:Spheroid>
</sml:HorizontalGeodeticDatum>
<sml:PrimeMeridian>
<sml:Name>Greenwich</sml:Name>
<sml:Type>8901</sml:Type>
<sml:PrimeMeridian>0</sml:PrimeMeridian>
</sml:PrimeMeridian>
</sml:GeographicCoordinateSystem>
<sml:MapProjection>
<sml:Name />
<sml:Type>43000</sml:Type>
</sml:MapProjection>
<sml:Parameters>
<sml:FalseEasting>0</sml:FalseEasting>
<sml:FalseNorthing>0</sml:FalseNorthing>
<sml:CentralMeridian>0</sml:CentralMeridian>
<sml:StandardParallel1>0</sml:StandardParallel1>
<sml:StandardParallel2>0</sml:StandardParallel2>
<sml:ScaleFactor>0</sml:ScaleFactor>
<sml:CentralParallel>0</sml:CentralParallel>
<sml:Azimuth>0</sml:Azimuth>
<sml:FirstPointLongitude>0</sml:FirstPointLongitude>
<sml:SecondPointLongitude>0</sml:SecondPointLongitude>
</sml:Parameters>
</sml:CoordinateReferenceSystem>
</SuperMapProjection>