WMTS (OGC Web Map Tile Service)

A Web Map Tile Service (WMTS) is an Open Geospatial Consortium (OGC) standard protocol for serving pre-rendered georeferenced map tiles over the Internet.

A WMTS can be created by serving out an SWD through GeognoSIS. To add a Geoserver WMTS layer in Cadcorp SIS WebMap, ensure you define a "Default" style in Geoserver.

Adding the data

Field	Is it Optional or Required?	Description
Layer Type	Required	The overlay type selected from the drop-down list.
Name	Required	An appropriate user added name.
Copyright	Ignore	Any text entered here will appear on the bottom left of your site.
Add URL	Required	The URL to the WMTS, if it is being served out by GeognoSIS this can be found in the capabilities document.
API Key	Required	If WMTS layer authentication is required enter your API Key.
API Key Parameter	Required	If WMTS layer authentication is required enter the API Key query parameter.
Get info from capabilities	Required	Select this button to populate the dropdown options with information stored in the WMTS capabilities document.
Layer Name	Required	This dropdown will be populated from the information stored in the capabilities document. Choose a layer from the ones listed.
Buffer	Required	Creates a buffer of tiles outside the visible map frame. This gives you a smoother experience for panning around the map; however it creates a larger request to the server meaning the server is busier for longer and the site can be slower to load.
Request Encoding	Required	Found in capabilities document.
Matrix Set	Required	Select from one of the matrix set identifiers.
Style	Required	Select an option from the dropdown list, this list will be populated when you click Get info from capabilities.
Visible		This option is not yet available in Cadcorp SIS WebMap but has been added in preparation for future development.
Image Format	Required	Select the output image format you wish the tile service to create the tiles in.
Format Suffix	Required	The suffix of the image format, for example; png, jpeg, gif, bmp.
Transition Effect	Required	This defines how the map transitions between zoom levels. Currently there is only one option of resize, this resamples the current tile and displays it stretched or compressed until the new tile is available.
Show Image Checkbox	Ignore	This option is present for legacy support of Web Map Layers 7.1, if using the standard Cadcorp SIS WebMap site this parameter can be ignored.
Include in Layer Tree	Optional	If the data is being served out as a base layer and the site will be accessed on a mobile device, this option allows you to switch between base layers in the Map Features dialog. (The base layer selector on the top right of the site is not included in the mobile version of Cadcorp SIS WebMap).
Projection	Required	Choose from a predefined list of SRID numbers to define what projection the cache will be drawn in. More SRID numbers can be added in the Projections table of the webMapLayersConfig.db.
Is Base Layer	Required	This should always be ticked. It defines the layer as a base layer.
Use Authenticated Proxy	Optional	Tick this box if your WMTS is accessed through an Authenticated Proxy server.
Proxy Url	Optional	If using an Authenticated Proxy specify the URL here. Example of a Proxy url: http://{MachineName}/WebMap9/AuthenticatedTileCacheHandler.axd. {MachineName} may be localhost.
Proxy User Name	Optional	If using an Authenticated Proxy specify the User Name here.
Proxy Password	Optional	If using an Authenticated Proxy specify the Password here.