9.5. GetCoverage 操作

9.5.1. 1. KVP 格式请求

GetCoverage 操作需要以下的参数:

参数

是否必须

默认值

VERSION

1.1.2

SERVICE

WCS

REQUEST=GetCoverage

IDENTIFIER

BOUNDINGBOX

FORMAT

TIMESEQUENCE

RANGESUBSET

STORE

GRIDBASECRS

GRIDTYPE

GRIDCS

GRIDORIGIN

GRIDOFFSETS

以下是一个WCS使用KVP格式的GetCoverage操作示例:

http://my.service.org/path/script?

service=WCS&

version=1.1.2&

request=GetCoverage&

identifier=Cov123&

BoundingBox=-71,47,-66,51,urn:ogc:def:crs:OGC:2:84&

format=image/netcdf

9.5.2. 2.XML格式请求

以下是一个WCS使用XML格式的GetCoverage操作示例:

xml version="1.0" encoding="UTF-8"?>

GetCoverage xmlns="http://www.opengis.net/wcs/1.1"

xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://www.opengis.net/wcs/1.1 ../wcsGetCoverage.xsd"

service="WCS" version="1.1.2">

ows:Identifier>Cov123ows:Identifier>

DomainSubset>

ows:BoundingBox crs="urn:ogc:def:crs:OGC:2:84">

ows:LowerCorner>-71 47ows:LowerCorner>

ows:UpperCorner>-66 51ows:UpperCorner>

ows:BoundingBox>

DomainSubset>

Output format="image/netcdf" />

GetCoverage>

9.5.3. 3.响应示例

以下是一个WCS的GetCoverage操作的响应示例:

xml version="1.0" encoding="UTF-8"?>

Coverages xmlns="http://www.opengis.net/wcs/1.1" xmlns:ows="http://www.opengis.net/ows"

xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xmlns:schemaLocation="http://www.opengis.net/wcs/1.1 ../owsCoverages.xsd http://www.opengis.net/ows/1.1 ../../../ows/1.1.0/owsAll.xsd">

Coverage>

ows:Title>TBDows:Title>

ows:Abstract>Coverage created from GetCoverage operation

request to a WCSows:Abstract>

Identifier>TBDIdentifier>

Reference xlink:href="http://my.server.com/coverage/image.tiff"

xlink:role="urn:ogc:def:role:WCS:1.1:coverage" />

Reference xlink:href="http://my.server.com/coverage/metadata.xml"

xlink:role="urn:ogc:def:role:WCS:1.1:metadata" />

Coverage>

Coverages>