Question

在idestkopX 11i 2024版本中，新建球面场景，加载原始的osgb数据，位置显示正常，如下图

使用倾斜入库后，生成s3mb 3.0的三维缓存切片，参数都是默认的，再加载到场景中，三维切片有很大的偏移，偏移到南半球， 不知道是什么原因。

osgb 倾斜入库参数如下：

Answer 1

您好，您入库前的坐标系是什么呢？入库后的scp文件中geobounds和position是否也是错误的呢？

Comments

osgb生成的 scp主要内容为：
<?xml version="1.0" encoding="UTF-8"?>
<SuperMapCache xmlns:sml="http://www.supermap.com/SuperMapCache/vectorltile">
<sml:Version>1.00000</sml:Version>
<sml:FileType>OSGBFile</sml:FileType>
<sml:HeightRange>
<sml:MaxHeight>304.625244</sml:MaxHeight>
<sml:MinHeight>-133.967209</sml:MinHeight>
</sml:HeightRange>
<sml:Position>
<sml:X>112.86992000000000000</sml:X>
<sml:Y>28.20893000000000000</sml:Y>
<sml:Z>0.000000000000000</sml:Z>
</sml:Position>
<sml:BoundingBox>
<sml:MinX>112.8642145266796900</sml:MinX>
<sml:MinY>28.1400806135387430</sml:MinY>
<sml:MinZ>-5261.502825</sml:MinZ>
<sml:MaxX>112.972152</sml:MaxX>
<sml:MaxY>28.235212</sml:MaxY>
<sml:MaxZ>5327.341748</sml:MaxZ>
</sml:BoundingBox>
</sml:OSGFiles>
<sml:CoordinateReferenceSystem>
<sml:Name>CGCS2000_3_Degree_GK_CM_114E</sml:Name>
<sml:Type>-1</sml:Type>
<sml:EPSGCode>0</sml:EPSGCode>
<sml:Units>METER</sml:Units>
<sml:DistUnits>METER</sml:DistUnits>
<sml:GeographicCoordinateSystem>
<sml:Name>GCS_China_Geodetic_Coordinate_System_2000</sml:Name>
<sml:Type>-1</sml:Type>
<sml:Units>DEGREE</sml:Units>
<sml:DistUnits>METER</sml:DistUnits>
<sml:HorizontalGeodeticDatum>
<sml:Name>D_China_2000</sml:Name>
<sml:Type>-1</sml:Type>
<sml:Spheroid>
<sml:Name>CGCS2000</sml:Name>
<sml:Type>-1</sml:Type>
<sml:SemiMajorAxis>6378137</sml:SemiMajorAxis>
<sml:InverseFlattening>298.257222101</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>Gauss_Kruger</sml:Name>
<sml:Type>43005</sml:Type>
</sml:MapProjection>
<sml:Parameters>
<sml:FalseEasting>500000</sml:FalseEasting>
<sml:FalseNorthing>0</sml:FalseNorthing>
<sml:CentralMeridian>114</sml:CentralMeridian>
<sml:StandardParallel1>0</sml:StandardParallel1>
<sml:StandardParallel2>0</sml:StandardParallel2>
<sml:ScaleFactor>1</sml:ScaleFactor>
<sml:CentralParallel>0</sml:CentralParallel>
<sml:Azimuth>0</sml:Azimuth>
<sml:FirstPointLongitude>0</sml:FirstPointLongitude>
<sml:SecondPointLongitude>0</sml:SecondPointLongitude>
<sml:RectifiedAngle>0</sml:RectifiedAngle>
</sml:Parameters>
</sml:CoordinateReferenceSystem>
</SuperMapCache>

入库后s3mb中scp文件主要内容为：
{
    "asset" : "SuperMap",
    "compressedPackageType" : "Zip",
    "crs" : "epsg:4490",
    "dataType" : "RealityMesh",
    "extensions" :
    {
        "attachFiles" : [],
        "combineLevel" : "1",
        "filteringAttributeFields" : [],
        "globeType" : "Ellipsoid_WGS84",
        "levels" : [],
        "pointCloudLayers" : [],
        "s3m:FileType" : "OSGBFile",
        "s3m:TextureCompressionType" : "KTX2.0",
        "s3m:TransparencyOptimization" : "TRUE",
        "s3m:VertexCompressionType" : "DRACO",
        "scales" : [],
        "simplificationRate" : [],
        "vol" : []
    },
    "geoBounds" :
    {
        "bottom" : -0.045679261951969884,
        "left" : 109.57491585995608,
        "right" : 109.63928617151346,
        "top" : 0.002644671810561276
    },
    "heightRange" :
    {
        "max" : 273.23370361328125,
        "min" : -31.563831329345703
    },
    "idFieldName" : "",
    "lodType" : "Replace",
    "position" :
    {
        "units" : "Degree",
        "x" : 109.51405871676077,
        "y" : 0.00025432615300626275,
        "z" : 0.0
    },
    "pyramidSplitType" : "Unknown",
    "version" : "3.0",
    "vertexAttributeDescript" :
    [
        {
            "category" : "VertexWeight",
            "range" :
            {
                "dimension" : 1,
                "max" :
                [
                    273.23370361328125
                ],
                "min" :
                [
                    -31.563831329345703
                ]
            }
        }
    ]
}