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Attributes |
Description |
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authentication |
A user name and password to access secure WMS services using basic authentication.
The format is "username:password". In cases where someone could read the setting
from the XML file, use the authentication-id instead. Optional.
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authentication-id |
The keyword for an authentication user name and password that is defined in
the WEB-INF/imf.properties file. This is much better that exposing the connection
information in the XML file. Optional.
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can-set-visibility |
Sets whether a layer can be turned on and off by the user. Valid values are "true" or "false". The default is "true". Layers that have can-set-visibility set to "false" show up in the layers list with the visibility checkbox disabled (grayed out). Optional.
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can-set-visibility-beyond-scale |
Sets whether a layer can be turned on and off by the user if it is outside of the visible scale range. Valid values are "true" or "false". The default is "false". Optional.
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href |
The request URL of the WMS service. Required.
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elevation |
The elevation element of the WMS layer if applicable. Optional, rarely used.
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format |
The image type for the WMS service, usually PNG, image/png, GIF, or image/gif.
Required.
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forward |
A security mechanism used when the IMF server has access to the WMS but the user
doesn't. If set to true, the images generated by the WMS server are forwarded to
the user's browser by copying them first to the IMF server. Valid values are
"true" or "false". Optional, defaulting to "false".
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immediate-refresh |
Sets whether the map should immediately refresh when the user changes the
visibility of the layer. Valid values are "true" or "false". The default is "false".
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layer-list-legend-can-hide |
Sets whether the visibility of the layer list legend for this layer can be toggled
by the user by clicking the mouse on a small icon beside the layer name. Note that
this controls the visibility of individual layers, as opposed to the
checkbox on the layer list that toggles the visibility of all layer list legends.
Optional, default is false.
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layer-list-legend-height |
The height of the graphic used in the layer list legend for this layer,
in pixels. Optional, but required if a layer list legend is used.
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layer-list-legend-url |
The URL of the graphic used in the layer list legend for this layer.
The URL can start with the special variable $IMF to specify that the
document is relative to the IMF installation directory. Absolute URLs may
also be used. URLs that don't start with http: or $IMF are resolved
relative to the location of the XML file. Optional, but required if a layer
list legend is used.
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layer-list-legend-visible |
Sets whether the layer list legend for this group is visible when the
application starts. Since invisible legends need to be turned on by the user at
some point, only set this to "false" if you activate the user toggle function
e.g. layer-list-legend-can-hide="true". Valid values are "true" or "false".
Optional, defaults to "true".
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layer-list-legend-width |
The width of the graphic used in the layer list legend for this layer,
in pixels. Optional, but required if a layer list legend is used.
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layers |
A comma separated list of the layers in the WMS that make up this layer. Usually
there will be only one, but note that a wms-layer can be a virtual layer made
up of more than one layer in the WMS. Required.
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max-scale |
Sets the maximum scale at which the layer will be displayed. Use numeric values, for example to set the scale to 1:10000, use 10000. Defaults to the maxscale setting in the map service, or 1.0E99 if no maximum scale is set for the layer in the map service.
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metadata-handler |
A URL to a dynamic script that handles a metadata request. The metadata handler is called
with the layer id, name, and the layer's object id.
The URL can start with the special variable $IMF to specify that the
document is relative to the IMF installation directory. Absolute URLs may
also be used. URLs that don't start with http: or $IMF are resolved
relative to the location of the XML file.
By default, there is no metadata handler. Optional.
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metadata-url |
Sets the URL for a metadata page that describes the layer.
The URL can start with the special variable $IMF to specify that the
document is relative to the IMF installation directory. Absolute URLs may
also be used. URLs that don't start with http: or $IMF are resolved
relative to the location of the XML file.
By default, there is no metadata. Optional.
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min-scale |
Sets the minimum scale at which the layer will be displayed. Use numeric values, for example to set the scale to 1:10000, use 10000. Defaults to the minscale setting in the map service, or 0 if no minimum scale is set for the layer in the map service.
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name |
The name by which this layer will appear as in IMF. Required
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position |
Sets the drawing order of the layer. Valid values are "top" or "bottom".
Optional, default is "top".
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srs |
The spatial reference system that the WMS uses to return the image in the same
projection as the main map in the IMF viewer. An example is "EPSG:4269". Required.
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styles |
The styles (if any) that correspond to the layers in the layers attribute. If there
is more than one layer, there must be an equal amount of styles, even if they are
empty. You can omit this attribute if there is only one layer and it has no style
name, but if there are 2 layers without styles, use ",".
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time |
The time element of the WMS layer if applicable. Optional, rarely used.
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version |
The version of WMS that the server supports, example "1.1.1". Required.
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visible |
Sets the initial visibility of the layer. Valid values are "true" or "false".
Optional, default is "false".
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