[mapserver-commits] r11534 - trunk/docs/en/input/vector

svn at osgeo.org svn at osgeo.org
Mon Apr 11 18:04:13 EDT 2011


Author: jmckenna
Date: 2011-04-11 15:04:13 -0700 (Mon, 11 Apr 2011)
New Revision: 11534

Removed:
   trunk/docs/en/input/vector/union.txt
Log:
remove old union doc

Deleted: trunk/docs/en/input/vector/union.txt
===================================================================
--- trunk/docs/en/input/vector/union.txt	2011-04-11 22:03:18 UTC (rev 11533)
+++ trunk/docs/en/input/vector/union.txt	2011-04-11 22:04:13 UTC (rev 11534)
@@ -1,93 +0,0 @@
-.. _union:
-
-*****************************************************************************
- Union Layer
-*****************************************************************************
-
-:Author: Tamas Szekeres
-:Contact: szekerest at gmail.com
-:Last Updated: 2011-03-08
-
-The union layer provides the option to represent features from multiple 
-layers (called as 'source layers') in a single layer. This functionality
-has been added according to :ref:`rfc68`.
-
-Map File Example
------------------
-
-* The CONNECTIONTYPE parameter must be set to UNION.
-* The CONNECTION parameter must contain the comma separated list of the source layers.
-* All of the source layers and the union layer must have the same TYPE.
-* At your convenience you may disable the visibility of the source layers to avoid to display the features twice.
-
-::
-
-	LAYER
-        CONNECTIONTYPE UNION
-        CONNECTION "layer1,layer2,layer3" # reference to the source layers
-        TYPE POINT
-        NAME "union-layer"
-        PROCESSING "ITEMS=itemname1,itemname2,itemname3"
-        STATUS default
-        ...
-    END
-    LAYER
-      CONNECTIONTYPE OGR
-      CONNECTION ...
-      TYPE POINT
-      NAME layer1
-      STATUS off
-      ...
-    END
-    LAYER
-      CONNECTIONTYPE SHAPE
-      CONNECTION ...
-      TYPE POINT
-      NAME layer2
-      STATUS off
-      ...
-    END
-    LAYER
-      CONNECTIONTYPE SHAPE
-      CONNECTION ...
-      TYPE POINT
-      NAME layer3
-      STATUS off
-      ...
-    END
-
-    
-Data Access / Connection Method
--------------------------------
-
-This is a native MapServer option that doesn't use any external libraries to support it. The CONNECTION
-parameter must contain the name of the source layers from which the features are actually retrieved.
-    
-Feature attributes
-------------------
-
-In the LAYER definition you may refer to any attributes supported by each of the source layers.
-In addition to the source layer attributes the union layer provides the following additional attributes:
-
-1) Combine:SourceLayerName - The name of the source layer the feature belongs to
-2) Combine:SourceLayerGroup - The group of the source layer the feature belongs to
-
-During the selection / feature query operations only the 'Combine:SourceLayerName' and 'Combine:SourceLayerGroup'
-attributes are provided by default. The set of the provided attributes can manually be overridden 
-(and further attributes can be exposed) by using the ITEMS processing option (refer to the example above).
-
-Classes and Styles
-------------------
-
-We can define the symbology and labelling for the union layers in the same way as for
-any other layer by specifying the classes and styles. In addition the STYLEITEM AUTO 
-option is also supported for the union layer, which provides to display 
-the features as specified at the source layers. The source layers 
-may also use the STYLEITEM AUTO setting if the underlying data source provides that.
-
-Projections
------------
-
-It is suggested to use the same projection of the union layer and the source layers. The layer provider
-however supports transforming the feature positions between the source layers and the union layer.
-



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