Add an Additional WMS Layer

The following parameters are required to add a WMS as an additional layer:

Field Is it Optional
or Required?
Description

Name

Required

Name and description that will appear in the More Mapping dialog.

Add URL

Required

URL from the WMS capabilities document, this can be obtained from the GeognoSIS Manager.

Get info from capabilities

Optional (use this or
Add Layer)

Selecting this button generates a dialog showing a list of the available layers from the supplied WMS URL.

Add Layer

Optional (use this or
Get info from
capabilities)

If you know the name of the layer you wish to add, type it in.

Copyright

Optional

Any text entered here will appear on the bottom left of your site.

Buffer

Required

Creates a buffer of tiles outside the visible map frame.

This gives the user 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.

By default this value is set to zero.

Version

Required

Automatically populated when you select a layer using Get info from capabilities, otherwise add this manually.

Is Base Layer

Optional

All layers added are assumed to be a data layers unless this tickbox is checked.

Include in Layer Tree

Optional

Allows you to switch between base layers in the Map Features dialog (If the data is being served out as a base layer and the site accessed on a mobile device).

Visible

Required

This tickbox must be checked for the data to be visible on the map and in the Map Features dialog.

Single Tile

Optional

The whole map is returned as one single tile, this reduces the number of requests made to the server however it prevents the map from appearing as a slippy map. If you pan around, the whole tile is reloaded for the new location.

Projection

Required

A predefined list of SRID numbers to define what projection the data will be drawn in. More SRID numbers can be added in the Projections table of the webMapLayersConfig.db.

Transition Effect

Required

This defines how the map transitions between zoom levels. Currently there is only one option: resize. This resamples the current tile and displays it stretched or compressed until the new tile is available.

Image_Format

Required

Sets the image format of the served out data.

Show Legend Button

Ignore

This option is present for legacy support of WebMap 7.1, if using the standard Cadcorp SIS WebMap site this parameter can be ignored.

Image Checkbox

Ignore

This option is present for legacy support of WebMap 7.1, if using the standard Cadcorp SIS WebMap site this parameter can be ignored.

Legend URL

Optional

As the WMS is not being added with capabilities, this information needs to be manually added. The information can be found in the capabilities document in your GeognoSIS Manager. For further details see Adding a WMS Legend.

Legend Image Width

Optional

This can be found in the capabilities document in your GeognoSIS Manager. For further details see Adding a WMS Legend.

Legend Image Height

Optional

This can be found in the capabilities document in your GeognoSIS Manager.

For further details see Adding a WMS Legend.

Exceptions

Optional

The format in which an exception is returned. It can be set to INIMAGE where the exception message is displayed in the image or BLANK so that no image is returned.

Abstract

Optional

Text entered here will appear as metadata next to the layer on your Cadcorp SIS WebMap site.

Tile Width

Optional

If the single tile option is not being used, the data requests from GeognoSIS will be returned in tiles, the value here refers to the number of pixels wide that the tile of returned data will be. It is set to 256 as default.

Tile Height

Optional

If the single tile option is not being used, the data requests from GeognoSIS will be returned in tiles, the value here refers to the number of pixels high that the tile of returned data will be. It is set to 256 as default.

Display Outside Max Extent

Optional

Displays data even if it is outside the maximum extents set for the map.

Num Zoom Levels

Ignore

This property can be currently ignored.

Use Authenticated Proxy

Optional

Tick this box if your WMS is accessed through an Authenticated Proxy server.

Proxy Url

Optional

If using an Authenticated Proxy specify the URL.

Proxy User Name

Optional

If using an Authenticated Proxy specify the User Name.

Proxy Password

Optional

If using an Authenticated Proxy specify the Password.