WorldWind <-> MapCache <-> MapServer

Question

我有一个MapCache <-> MapServer设置和运行。MapCache被配置为WMS，并用于缓存由我的MapServer提供的特定层的块。我可以访问WMS的功能，并通过我的浏览器显示瓦片通过访问WMS槽MapCache，并已验证它正在被缓存。

太好了，这正是我想要的。

接下来，我设置了一个WorldWind客户机来访问MapCache WMS。WorldWind抱怨根层( MapCache用来包装所有层的东西)没有提供地理边界框。WorldWind将此记录为严重，并开始抛出异常。我想找出问题出在哪里。WMS标准是否要求顶层有一个边界框，还是WorldWind客户端不符合WMS？下面是我看到的错误消息。下面是getCapabilities响应。下面是MapCache xml文件。下面是MapServer映射文件。

我也在WorldWind论坛上发布了这篇文章，但不确定我是否会在那里得到回复。

任何帮助都将不胜感激。

例外：

SEVERE: No geographic bounding box given in WMS capabilities for layer rootlayer
SEVERE: No geographic bounding box given in WMS capabilities
SEVERE: WMS capabilities document is missing values necessary for component construction

UpdateSequence: none
ServiceName: OGC:WMS
ServiceTitle: map service
ServiceAbstract: none
Fees: none
AccessConstraints: none
Keywords:  none
OnlineResource: href: [url]http://localhost/mapcache/?[/url], type: null
none
Max width = 0 Max height = 0

GetMap
    Formats:    image/jpeg,     image/png, 
    DCPTypes:
        HTTP, Get, href: [url]http://localhost/mapcache/?[/url], type: null
GetCapabilities
    Formats:    application/vnd.ogc.wms_xml, 
    DCPTypes:
        HTTP, Get, href: [url]http://localhost/mapcache/?[/url], type: null
GetFeatureInfo
    Formats:    text/plain,     application/vnd.ogc.gml, 
    DCPTypes:
        HTTP, Get, href: [url]http://localhost/mapcache/?[/url], type: null

LAYERS
LAYER rootlayer: queryable = false
LAYER bluemarbleJanuary: queryable = false

gov.nasa.worldwind.exception.WWRuntimeException: No geographic bounding box given in WMS capabilities
    at gov.nasa.worldwind.util.DataConfigurationUtils.getWMSLayerConfigParams(Unknown Source)
    at gov.nasa.worldwind.wms.WMSTiledImageLayer.wmsGetParamsFromCapsDoc(Unknown Source)
    at gov.nasa.worldwind.wms.WMSTiledImageLayer.<init>(Unknown Source)
    at gov.nasa.worldwind.layers.BasicLayerFactory.doCreateFromCapabilities(Unknown Source)
    at gov.nasa.worldwind.layers.BasicLayerFactory.doCreateFromCapabilities(Unknown Source)
    at gov.nasa.worldwind.BasicFactory.createFromConfigSource(Unknown Source)
    at gov.nasa.worldwind.layers.BasicLayerFactory.createFromConfigSource(Unknown Source)

gov.nasa.worldwind.exception.WWRuntimeException: Creation from configuration file failed Version: 1.1.1
    at gov.nasa.worldwind.BasicFactory.createFromConfigSource(Unknown Source)
    at gov.nasa.worldwind.layers.BasicLayerFactory.createFromConfigSource(Unknown Source)

Caused by: java.lang.IllegalArgumentException: WMS capabilities document is missing values necessary for component construction
    at gov.nasa.worldwind.wms.WMSTiledImageLayer.wmsGetParamsFromCapsDoc(Unknown Source)
    at gov.nasa.worldwind.wms.WMSTiledImageLayer.<init>(Unknown Source)
    at gov.nasa.worldwind.layers.BasicLayerFactory.doCreateFromCapabilities(Unknown Source)
    at gov.nasa.worldwind.layers.BasicLayerFactory.doCreateFromCapabilities(Unknown Source)
    ... 14 more

Caused by: gov.nasa.worldwind.exception.WWRuntimeException: No geographic bounding box given in WMS capabilities
    at gov.nasa.worldwind.util.DataConfigurationUtils.getWMSLayerConfigParams(Unknown Source)
    ... 18 more

GetCapabilities

<WMT_MS_Capabilities version="1.1.1">
<Service>
<Name>OGC:WMS</Name>
<Title>map service</Title>
<OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://localhost/mapcache?"/>
</Service>
<Capability>
<Request>
<GetCapabilities>
<Format>application/vnd.ogc.wms_xml</Format>
<DCPType>
<HTTP>
<Get>
<OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://localhost/mapcache?"/>
</Get>
</HTTP>
</DCPType>
</GetCapabilities>
<GetMap>
<Format>image/png</Format>
<Format>image/jpeg</Format>
<DCPType>
<HTTP>
<Get>
<OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://localhost/mapcache?"/>
</Get>
</HTTP>
</DCPType>
</GetMap>
<GetFeatureInfo>
<Format>text/plain</Format>
<Format>application/vnd.ogc.gml</Format>
<DCPType>
<HTTP>
<Get>
<OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://localhost/mapcache?"/>
</Get>
</HTTP>
</DCPType>
</GetFeatureInfo>
</Request>
<Exceptions>
<Format>text/plain</Format>
</Exceptions>
<VendorSpecificCapabilities>
<TileSet>
<SRS>EPSG:4326</SRS>
<BoundingBox SRS="EPSG:4326" minx="-180.000000" miny="-90.000000" maxx="180.000000" maxy="90.000000"/>
<Resolutions>
0.70312500000000000000 0.35156250000000000000 0.17578125000000000000 0.08789062500000000000 0.04394531250000000000 0.02197265625000000000 0.01098632812500000000 0.00549316406250000000 0.00274658203125000000 0.00137329101562500000 0.00068664550781250000 0.00034332275390625000 0.00017166137695312500 0.00008583068847656250 0.00004291534423828120 0.00002145767211914060 0.00001072883605957030 0.00000536441802978516
</Resolutions>
<Width>256</Width>
<Height>256</Height>
<Format>image/png</Format>
<Layers>bluemarbleJanuary</Layers>
<Styles/>
</TileSet>
</VendorSpecificCapabilities>
<Layer>
<Name>rootlayer</Name>
<Title>map service</Title>
<SRS>EPSG:900913</SRS>
<SRS>EPSG:4326</SRS>
<SRS>EPSG:3857</SRS>
<Layer cascaded="1" queryable="0">
<Name>bluemarbleJanuary</Name>
<LatLonBoundingBox minx="-180.000000" miny="-90.000000" maxx="180.000000" maxy="90.000000"/>
<BoundingBox SRS="EPSG:4326" minx="-180.000000" miny="-90.000000" maxx="180.000000" maxy="90.000000"/>
<SRS>EPSG:4326</SRS>
</Layer>
</Layer>
</Capability>
</WMT_MS_Capabilities>

mapcache.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- see the accompanying mapcache.xml.sample for a fully commented configuration file -->

<mapcache>
    <metadata>
     <title>map service</title>
     <abstract>Contains various cached maps</abstract>
    </metadata>

    <cache name="disk" type="disk">
     <base>D:/mapserver/ms4w/tmp/ms_tmp/cache</base>
    </cache>

    <source name="bluemarbleJanuary" type="wms">
     <getmap>
       <params>
         <FORMAT>image/png</FORMAT>
         <LAYERS>bluemarbleJanuary</LAYERS>
         <MAP>D:/mapserver/data/nasaww.map</MAP>
       </params>
     </getmap>
     <http>
       <url>http://localhost/wms?</url>
     </http>
    </source>

    <format name="PNGQ_FAST" type="PNG">
     <compression>fast</compression>
     <colors>256</colors>
    </format>

    <tileset name="bluemarbleJanuary">
     <source>bluemarbleJanuary</source>
     <cache>disk</cache>
     <grid>WGS84</grid>
     <format>PNGQ_FAST</format>
     <metatile>5 5</metatile>
     <metabuffer>20</metabuffer>
     <expires>3600</expires>
    </tileset>

    <default_format>PNGQ_FAST</default_format>

    <service type="wms" enabled="true">
     <full_wms>assemble</full_wms>
     <resample_mode>bilinear</resample_mode>
     <format>PNGQ_FAST</format>
     <maxsize>4096</maxsize>
    </service>
    <service type="wmts" enabled="true"/>
    <service type="tms" enabled="true"/>
    <service type="kml" enabled="true"/>
    <service type="gmaps" enabled="true"/>
    <service type="ve" enabled="true"/>
    <service type="demo" enabled="true"/>

    <errors>report</errors>
    <lock_dir>D:/mapserver/ms4w/tmp/ms_tmp</lock_dir>
    <log_level>debug</log_level>

</mapcache>

地图文件

MAP
    NAME WMS_server
    STATUS ON
    EXTENT -180 -90 180 90
    UNITS DD
    CONFIG "MS_ERRORFILE" "ms_error.txt"
    DEBUG 5

    #
    # Start of web interface definition
    #
    WEB
        METADATA
            "wms_title"                  "WMS Demo Server"
            "wms_onlineresource"         "http://localhost/wms?"
            "wms_srs"                    "EPSG:4326"
            "wms_feature_info_mime_type" "text/html"
            "wms_abstract"               "This demonstration server showcases MapServer (www.mapserver.org) and its OGC support"
            "wms_enable_request"         "*"
        END # Metadata
    END # Web

    PROJECTION
        "init=epsg:4326"
    END # Projection

    #
    # Start of layer definitions
    #

    ##################
    # Blue Marble January 2004
    ##################
    LAYER
        NAME "bluemarbleJanuary"
        #GROUP "default"
        TYPE RASTER
        STATUS ON

        METADATA
            "wms_title"             "Blue Marble Raster (January 2004)"
            "wms_attribution_title" "NASA Blue Marble (January 2004)"
            "wms_srs"               "EPSG:4326"
        END # Metadata

        TILEINDEX "raster/bluemarble/jan/bluemarble-index.shp"
        TILEITEM "LOCATION"

        PROJECTION
            "+init=EPSG:4326"
        END # Projection
    END # Layer

END # Map

Answer 1

我知道您提到了mapcache的问题，但您需要确保mapserver提供信息，以防mapcache将其作为getcapabilities请求的一部分转发。

您还可能希望在mapcache开发人员监视mapcache用户或dev邮件列表时将此查询发布到mapserver用户或dev邮件列表中。

在mapserver文档中：

wms_bbox_extended：

Description: (Optional) “true” or “false”. If true, bounding boxes are reported for all supported SRS / CRS in the capabilities document. If false, only the bounding box of the first SRS / CRS is reported.
Introduced in 6.0.

wms_extent

WMS TAG Name: BoundingBox (WMS1.1.1, sect. 6.5.6)

Description: (Optional) Used for the layer’s BoundingBox tag for cases where it is impossible (or very inefficient) for MapServer to probe the data source to figure its extents. The value for this metadata is “minx miny maxx maxy” separated by spaces, with the values in the layer’s projection units. If wms_extent is provided then it has priority and MapServer will NOT try to read the source file’s extents.

For Rasters served through WMS, MapServer can now use the wms_extent metadata parameter to register the image. If a .wld file cannot be found, MapServer will then look for the wms_extent metadata parameter and use the extents of the image and the size of the image for georegistration.