LAYERS

LAYERS

Used in: CONFIG   REQUEST   RESPONSE
Servers: Image
Parent elements: IMAGE   LEGEND

<LAYERS > No Attributes (m) <LAYER... /> </LAYERS >
(m): Child element can be used multiple times.

Description:

In a request or map configuration file, LAYERS contains a list of layers that should not be included in the legend.
In a response, LAYERS contains a list of layers returned by the Image Server including layer ID and number of features.

Restrictions:

When used in a map configuration file or GET_IMAGE request, LAYERS is valid only with Image Services in an ArcIMS HTML Viewer or other HTML implementation.
When used in an IMAGE response, LAYERS is valid only with Image Services.
Not valid with ArcMap Server.

Notes:

None

Examples for LAYERS:

Example 1: Map configuration file where layers with ID of "0" and "1" are removed from the legend list.

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<?xml version="1.0" encoding="UTF-8"?>
<ARCXML version="1.1">
  <CONFIG>
    <ENVIRONMENT>
      <LOCALE country="US" language="en" variant="" />
      <UIFONT color="0,0,0" name="Arial" size="12" style="regular" />
      <SCREEN dpi="96" />
    </ENVIRONMENT>
    <MAP dynamic="true" >
      <PROPERTIES>
      <ENVELOPE minx="-180.0" miny="-90.0" maxx="180.0" maxy="90.0" name="Initial_Extent" />
      <MAPUNITS units="decimal_degrees" />
      <FILTERCOORDSYS id="4326" />
      <FEATURECOORDSYS id="4326"/>
      <LEGEND title="Legend" font="Arial" autoextend="true" columns="1" width="170" height="300" backgroundcolor="255,255,0" >
        <LAYERS>
          <LAYER id="0"/>
          <LAYER id="1"/>
        </LAYERS>
      </LEGEND>
      </PROPERTIES>
      <WORKSPACES>
        <SHAPEWORKSPACE name="shp_ws-0" directory="<path to WORLD ESRIDATA>" />
        <SHAPEWORKSPACE name="shp_ws-2" directory="<path to USA ESRIDATA>" />
        <SHAPEWORKSPACE name="shp_ws-3" directory="<path to CANADA ESRIDATA>" />
      </WORKSPACES>
      <LAYER type="featureclass" name="WORLD30" visible="true" id="0">
        <DATASET name="WORLD30" type="polygon" workspace="shp_ws-0" />
        <SIMPLERENDERER>
          <SIMPLEPOLYGONSYMBOL filltype="solid" fillcolor="0,153,255" />
        </SIMPLERENDERER>
      </LAYER>
      <LAYER type="featureclass" name="CNTRY94" visible="true" id="1">
        <DATASET name="CNTRY94" type="polygon" workspace="shp_ws-0" />
        <SIMPLERENDERER>
          <SIMPLEPOLYGONSYMBOL filltype="solid" fillcolor="255,255,153" />
        </SIMPLERENDERER>
      </LAYER>
      <LAYER type="featureclass" name="United States" visible="true" id="2">
        <DATASET name="STATES" type="polygon" workspace="shp_ws-2" />
        <SIMPLERENDERER>
          <SIMPLEPOLYGONSYMBOL filltype="solid" fillcolor="255,0,0" />
        </SIMPLERENDERER>
      </LAYER>
      <LAYER type="featureclass" name="Canada" visible="true" id="3">
        <DATASET name="province" type="polygon" workspace="shp_ws-3" />
        <SIMPLERENDERER>
          <SIMPLEPOLYGONSYMBOL filltype="solid" fillcolor="0,153,0" />
        </SIMPLERENDERER>
      </LAYER>
      <LAYER type="featureclass" name="World Cities" visible="true" id="4">
        <DATASET name="CITIES" type="point" workspace="shp_ws-0" />
        <SIMPLERENDERER>
          <SIMPLEMARKERSYMBOL color="102,0,102" width="8.0" />
        </SIMPLERENDERER>
      </LAYER>
    </MAP>
  </CONFIG>
</ARCXML>

Example 2: GET_IMAGE request where layers with ID of "0" and "1" are removed from the legend list.

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<?xml version="1.0" encoding="UTF-8"?>
<ARCXML version="1.1">
  <REQUEST>
    <GET_IMAGE>
      <PROPERTIES>
        <LEGEND title="Legend" font="Arial" autoextend="true" columns="1" width="170" height="300" backgroundcolor="255,255,0" >
          <LAYERS>
            <LAYER id="0"/>
            <LAYER id="1"/>
          </LAYERS>
        </LEGEND>
        <DRAW map="false"/>
      </PROPERTIES>
    </GET_IMAGE>
  </REQUEST>
</ARCXML>

Example 3: IMAGE response showing details on layers in the requested MapService.

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<?xml version="1.0" encoding="UTF8"?>
<ARCXML version="1.1">
  <RESPONSE>
    <IMAGE>
      <ENVELOPE minx="-180" miny="-135" maxx="180" maxy="135" />
      <LAYERS>
        <LAYER name="CNTRY94" id="0" featurecount="165" />
        <LAYER name="STATES" id="1" featurecount="51" />
        <LAYER name="province" id="2" featurecount="12" />
      </LAYERS>
      <OUTPUT file="c:\arcims\output\world_MYCOMPUTER3633699.jpg" url="http://mycomputer.domain.com/output/world_MYCOMPUTER3633699.jpg" />
    </IMAGE>
  </RESPONSE>
</ARCXML>