You'll see the most benefit using a cache if your WMS service has many layers or sophisticated symbology that would otherwise take a long time to draw dynamically. The cached tiles are resampled to fit the scale requested by the client, which can take some processing time and reduce the image quality. The map cache is only used when requesting the original projection, layer order, and layer visibility of the service. At ArcGIS Server 9.3, WMS services take advantage of a map cache if one is available.
You may be able to reduce the startup time by removing or consolidating layers in the service. The number of layers in the map directly affects the amount of time it takes to initially create the WMS service or start it after it has been stopped.When you publish your map or image service, you should enable the WMS capability by checking the box in the Capabilities list. If you need help with this step, see Publishing a GIS resource to the server. You can use either ArcGIS Server Manager or ArcCatalog to publish the service. To publish an image service, you need to have either a raster dataset or a compiled image service definition file from ArcGIS Image Server. Publish an image service with the WMS capability enabled.To publish a map service, you first need to create a map document. Publish a map service with the WMS capability enabled.There are two ways you can publish a WMS service using ArcGIS Server: Publishing a WMS service in ArcGIS Server ESRI also maintains an Interoperability and Standards Web page detailing its support for OGC services in ArcGIS. You can learn more about WMS services at the Open Geospatial Consortium Web site. You can publish both WFS and WCS services using ArcGIS Server 9.3. To expose data as raster layers, publish a WCS service. To expose your data as vector features through OGC specifications, publish a WFS service instead. The maps returned by a WMS service are images only. But one must support at least GetCapabilities and GetMap operations to be a "Basic WMS", and support optional GetFeatureInfo operation to be a "Queryable WMS". It is not necessary for a WMS service to support all the operations. Request information about features in the map (GetFeatureInfo (optional)).Request metadata about the service (GetCapabilities).WMS services published with ArcGIS Server support the following three operations: They are v1.0.0, v1.1.0, v1.1.1, and v1.3.0 (most recent).Ĭlient applications work with a WMS service by appending parameters to the service's URL. Four versions of the WMS specification have been published so far. Any client built to support the WMS specification can view and work with your service. WMS services are useful if you want to make your maps available online in an open, recognized way across different platforms and clients. (OGC) Web Map Service (WMS) specification is an international specification for serving and consuming dynamic maps on the Web.
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