The Notes and Samples of WCS110 KVP Request
|
Name and examplea |
Optionality & use |
Definition and format |
| http://server_address/path/script? | Mandatory | URL of WCS server GetCoverage operation |
| service=WCS | Mandatory | Service name, shall be "WCS" |
| version=1.1.0 | Mandatory | Request protocol version |
| request=GetCoverage | Mandatory | Name of the operation, shall be "GetCoverage" |
| identifier=identifier | Mandatory | Unique identifier of an available coverage |
| BoundingBox=47,-71, - 51,66, urn:ogc:def:crs:EPSG:6.6:6326 6405 |
Optional, include when spatial subset desired b |
Request a coverage subset defined by the specified bounding box in the referenced coordinate reference system |
| RangeSubset=temp:nearest; radiance[band[1,2,5]] (see syntax below) |
Optional; include when requesting values for only some of the available fields or field keys; or non-default interpolation types on fields. |
Request only some fields OR subsets of some fields (OR list fields to request nondefault interpolation on them). (see syntax below) |
| format=image/netcdf | Mandatory | Requested output format of Coverage. Shall be one of those listed in the description of the selected coverage |
| store=true | Optional, include when supported and not false |
Specifies whether response coverage should be stored, remotely from client at network URL, a boolean value |
| GridBaseCRS=urn:ogc:def:crs:EP SG:6.6:32618 |
Optional, include all of five GridCRS parameters, except for defaulted parameters, to request output in a CRS other than the ImageCRS of stored coverage |
Reference to baseCRS of desired output GridCRS, a URN c |
| GridType=urn:ogc:def:method:W CS:1.1:2dGridIn2dCrs |
Reference to grid type of desired output GridCRS, a URN c, d |
|
| GridOrigin=0,0 | Position coordinates of one possible grid origin, in baseCRS of desired output GridCRS c, f |
|
| GridOffsets=1000,1000 | Offsets between adjacent grid points, in baseCRS of desired output GridCRS c, g |
|
|
RangeSubset = FieldSubset
FieldSubset = FieldId [ ":" Interpolation ] [ "[" AxisSubsets "]" ]
AxisSubsets = AxisSubset *( "," AxisSubset )
AxisSubset = AxisId "[" Keys "]"
Keys = Key *( "," Key )
FieldId = <field identifier, as defined in Subclause 9.3.1.3 and Table 19 of OGC 06-083r8>
AxisId = <axis identifier, as defined in Subclause 9.3.1.3 and Table 20 of OGC 06-083r8>
Key = <key, as defined in Subclause 9.3.1.3 and Table 21 of OGC 06-083r8>
Interpolation = <interpolation type identifier, as defined in Table I.7 of OGC 06-083r8>
http://data.laits.gmu.edu:8080/cgi-bin/wcs110?service=WCS&version=1.1.0&request=GetCoverage&identifier=NETCDF:"/Data/G12IR04D20011009181600.nc":Band4_TEMP&format=image/geotiff
http://data.laits.gmu.edu:8080/cgi-bin/wcs110?service=WCS&version=1.1.0&request=GetCoverage&identifier=NETCDF:"/Data/G12IR04D20011009181600.nc":Band4_TEMP&BoundingBox=-100,30,-85,40,urn:ogc:def:crs:OGC:2:84&format=image/geotiff
http://data.laits.gmu.edu:8080/cgi-bin/wcs110?service=WCS&version=1.1.0&request=GetCoverage&identifier=NETCDF:"/Data/G12IR04D20011009181600.nc":Band4_TEMP&BoundingBox=-100,30,-85,40,urn:ogc:def:crs:OGC:2:84&RangeSubset=Band31_TEMP:linear[band[1]]&format=image/geotiff
http://data.laits.gmu.edu:8080/cgi-bin/wcs110?service=WCS&version=1.1.0&request=GetCoverage&identifier=NETCDF:"/Data/G12IR04D20011009181600.nc":Band4_TEMP&BoundingBox=-100,30,-85,40,urn:ogc:def:crs:OGC:2:84&RangeSubset=Band31_TEMP:linear[band[1]]&format=image/geotiff&GridBaseCRS=urn:ogc:def:crs:EPSG:6.6:6371229&GridOffsets=1000,1000&GridOrigin=-900000.,1300000.0&store=true
- GridBaseCRS-- Output Grid image located in Base CRS.
- GridOrigin-- The Grid Origin coordinates in Base CRS for output Grid;
- GridOffsets--Grid image pixel resolution in X and Y in Grid Base CRS;
This parameter can be used to decision the height and weigh of output Grid.( image scale be calculated by compose this parameter with BoundingBox parameter).
- store--Output Grid whether be store in location of services site.
- GridBaseCRS=urn:ogc:def:crs:epsg:6.6:4326
- GridBaseCRS=urn:ogc:def:crs:OGC:2:84
- GridBaseCRS=urn:ogc:def:crs:OGC:0.0:imageCRS
- GridBaseCRS=auto:600002
- GridBaseCRS=urn:ogc:def:crs:epsg:6.6:6371229
- GridBaseCRS=auto:600001
| Names | Multiplicity | Server implementation | Client implementation |
| service | One (mandatory) | Each parameter shall be implemented by all serversa |
Each parameter shall be implemented by all clients, using specified value |
| request | One (mandatory) | ||
| Accept Versions | Zero or one (optional) | Shall be implemented by all servers |
Should be implemented by all software clients, using allowed values |
| Sections | Zero or one (optional) | Each parameter should be implemented by each servera,b |
Each parameter may be implemented by each clientc |
| update Sequence | Zero or one (optional) | ||
| Accept Formats | Zero or one (optional) | ||
|
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| Names | Definition | Data type and value | Multiplicity and use |
| service Service |
Service type identifier | Character String type, not empty Value is OWS type abbreviation, namely "WCS" | One (mandatory) |
| request Request |
Operation name | Character String type, not empty Value is operation name, namely "DescribeCoverage" |
One (mandatory) |
| version Version |
Specification version for operation | Character String type, not empty Value is specified by each Implementation Specification and Schemas version |
One (mandatory) |
| identifier Identifier |
Unambiguous identifier of a coverage, unique for this WCS | Character String type, not empty | One or more (mandatory) Include for each desired coverage |
| URL component | Description | Optionality |
| http://server_address/path/script? | URL of WCS server. | Required |
| service=WCS | Service name. Must be "WCS". | Required |
| request=DescribeCoverage | Request name. Must be "DescribeCoverage" | Required |
| version=1.1.0 | Request protocol version. | |
| identifiers=identifier1, identifier2, | A comma-separated list of coverage identifiers to describe (identified by their identifier values in the Capabilities document |