Developer's Guide - MapGuide Open Source - OSGeo

function CreateBufferFeatureSource($featureService, $wkt,
$bufferFeatureResId)
{
$bufferClass = new MgClassDefinition();
$bufferClass->SetName('BufferClass');
$properties = $bufferClass->GetProperties();
$idProperty = new MgDataPropertyDefinition('ID');
$idProperty->SetDataType(MgPropertyType::Int32);
$idProperty->SetReadOnly(true);
$idProperty->SetNullable(false);
$idProperty->SetAutoGeneration(true);
$properties->Add($idProperty);
$polygonProperty = new
MgGeometricPropertyDefinition('BufferGeometry');
$polygonProperty->
SetGeometryTypes(MgFeatureGeometricType::Surface);
$polygonProperty->SetHasElevation(false);
$polygonProperty->SetHasMeasure(false);
$polygonProperty->SetReadOnly(false);
$polygonProperty->SetSpatialContextAssociation('defaultSrs');
$properties->Add($polygonProperty);
$idProperties = $bufferClass->GetIdentityProperties();
$idProperties->Add($idProperty);
$bufferClass->
SetDefaultGeometryPropertyName('BufferGeometry');
$bufferSchema = new MgFeatureSchema('BufferLayerSchema',
'temporary schema to hold a buffer');
$bufferSchema->GetClasses()->Add($bufferClass);
$sdfParams = new MgCreateSdfParams('defaultSrs', $wkt,
$bufferSchema);
$featureService->CreateFeatureSource($bufferFeatureResId,
$sdfParams);
}
function CreateBufferLayer($resourceService,
$bufferFeatureResId, $sessionId)
{
// Load the layer definition template into
// a PHP DOM object, find the "ResourceId" element, and
// modify its content to reference the temporary
// feature source.
$doc = DOMDocument::load('bufferlayerdefinition.xml');
$featureSourceNode = $doc->getElementsByTagName(
86 | Chapter 5 Analyzing Features