Example Analysis of loading wmts in the Secondary Development of TE
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Maps can be loaded through network services in TE, and commonly used services such as wms,wmts
WMTS provides a standardized solution for publishing digital map services using predefined block methods. WMTS makes up for the deficiency that WMS is unable to provide block maps. WMS is an ideal solution for dynamic data or user-customized maps (which need to be combined with SLD standards) for services that provide customizable maps. WMTS sacrifices the flexibility of providing custom maps and instead enhances scalability by providing static data (base maps) whose scope boxes and scale bars are limited to individual blocks. These fixed sets of blocks make it possible to implement WMTS services using a Web server that simply returns existing files, while making use of some standard network mechanisms such as distributed caching to achieve scalability.
TE supports secondary development and loading wmts, and the code is relatively simple:
ITerrainRasterLayer66 il = sgworld.Creator.CreateImageryLayer ("ter.wms file path",-180,90,180,-90,0, "ter")
The key is how to configure .wmts. Here is a configuration format of wmts:
[INFO]
ProtocolType=3
ServerOptions=20000000
Meters=0
MPP=4.291534423828125e-005
Url= http://t0.tianditu.com/ter_c/wmts?request=GetTile&Version=1.0.0&Service=WMTS&Layer=ter&Style=default&Format=tiles&TileMatrixSet=c&TileMatrix=1&TileRow=0&TileCol=0
Layers=ter
CapabilitiesUrl= http://t0.tianditu.com/ter_c/wmts?
Xul=-180
Ylr=-89.99999999977328
Xlr=179.99999999954656
Yul=90
WMSCoordSys=urn:ogc:def:crs:EPSG::4490
WKT=GEOGCS ["China Geodetic Coordinate System 2000", DATUM ["China_2000", SPHEROID ["CGCS2000", 6378137298.257222101 ["EPSG", "1024"]], AUTHORITY ["EPSG", "1043"]], PRIMEM ["Greenwich", 0order AUTHORITY ["EPSG", "8901"]], UNIT ["degree", 0.0174532925199343 ["EPSG", "9122"]], AXIS ["Latitude", NORTH], AXIS [Longitude ", EAST], AUTHORITY [" EPSG "," 4490 "]]
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ProtocolType is the protocol type
ServerOptions server configuration
Meters offset
Connection string for Url wmts
Layers layer
Url based on CapabilitiesUrl
Xul ylr xlr yul four to coordinate range
WMSCoordSys wkt reference coordinate system
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