Example - Creating A Layer That Uses Area Rules

This example shows how to create a new layer using the factory. This layer uses three area rules to theme parcels by their square footage.

    // ...

  /---------------------------------------------------//

 $factory = new LayerDefinitionFactory();

 /// Create three area rules for three different

 // scale ranges.

 $areaRule1 = $factory->CreateAreaRule(    '1 to 800',

   'SQFT &gt;= 1 AND SQFT &lt; 800',     'FFFFFF00');

 $areaRule2 = $factory->CreateAreaRule( '800 to 1600',

   'SQFT &gt;= 800 AND SQFT &lt; 1600',  'FFFFBF20');

 $areaRule3 = $factory->CreateAreaRule('1600 to 2400',

   'SQFT &gt;= 1600 AND SQFT &lt; 2400', 'FFFF8040');

 // Create an area type style.

 $areaTypeStyle = $factory->CreateAreaTypeStyle(

   $areaRule1 . $areaRule2 . $areaRule3);

 // Create a scale range.

 $minScale = '0';

 $maxScale = '1000000000000';

 $areaScaleRange = $factory->CreateScaleRange(

   $minScale, $maxScale, $areaTypeStyle);

 // Create the layer definiton.

 $featureClass = 'Library://Samples/Sheboygan/Data/'

 .  'Parcels.FeatureSource';

 $featureName = 'SHP_Schema:Parcels';

 $geometry = 'SHPGEOM';

 $layerDefinition = $factory->CreateLayerDefinition(

   $featureClass, $featureName, $geometry,

   $areaScaleRange);

 //---------------------------------------------------//

 // ...

The script then saves the XML to a resource and loads that resource into the map. See Adding Layers To A Map.