IMF Developer's Guide

<layer-list-legend>

IMF Developer's Guide » Layer Configuration » <layer-list-legend>

The <layer-list-legend> element is used to specify one or more legends to appear on the layer list page for a given layer or group. Each legend may be applicable at certain scale ranges. There are attributes in the layer and group elements that can be used instead to set up a single legend for a layer.

Frequency	Parent Elements (the <layer-list-legend> element is valid within):
PO+	<dynamic-feature-layer>
PO+	<dynamic-image-layer>
PO+	<group>
PO+	<layer>
PO+	<wms-layer>

Frequency	Description (in this context)
PO+	The child element may appear one or more times within the parent element in any order.
O+	The child element may appear one or more times within the <folder> element in any order.

Attributes	Description
height	The height of the graphic used in the layer list legend, in pixels. Required.
max-scale	The maximum scale at which this legend image is applcable to. Positive decimal numeric value expected. Optional. If no max-scale is specified, then this legend is displayed at all scales higher than the min-scale value (if any).
min-scale	The minimum scale at which this legend image is applcable to. Positive decimal numeric value expected. Optional. If no min-scale is specified, then this legend is displayed at all scales less than the max-scale value (if any).
url	The URL of the graphic used in the layer list legend. 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. Required.
width	The width of the graphic used in the layer list legend, in pixels. Required.

Example:

<layer name="Some Layer" .....>
  <layer-list-legend url="legend1.png" width="150" height="75" max-scale="50000"/>
  <layer-list-legend url="legend2.png" width="200" height="75" min-scale="50000"/>
</layer>