function CreatePolygon($coordinates)
{
$geometryFactory = new MgGeometryFactory();
$coordinateCollection = new MgCoordinateCollection();
$linearRingCollection = new MgLinearRingCollection();
for ($index = 0; $index < count($coordinates); ++$index) {
$coordinate = $geometryFactory->CreateCoordinateXY(ParseLocaleDouble($coordinates[$index]), ParseLocaleDouble($coordinates[++$index]));
$coordinateCollection->Add($coordinate);
}
$coordinateCollection->Add($geometryFactory->CreateCoordinateXY(ParseLocaleDouble($coordinates[0]), ParseLocaleDouble($coordinates[1])));
$linearRingCollection = $geometryFactory->CreateLinearRing($coordinateCollection);
$captureBox = $geometryFactory->CreatePolygon($linearRingCollection, null);
return $captureBox;
}
private function CreatePolygonFromGeomText($geomText)
{
$geometryFactory = new MgGeometryFactory();
$vertices = explode(',', $geomText);
$count = $vertices[0];
$coords = new MgCoordinateCollection();
for ($i = 0; $i < $count; $i++) {
$coord = $geometryFactory->CreateCoordinateXY((double) $vertices[$i * 2 + 1], (double) $vertices[$i * 2 + 2]);
$coords->Add($coord);
}
$linearRing = $geometryFactory->CreateLinearRing($coords);
$polygon = $geometryFactory->CreatePolygon($linearRing, null);
return $polygon;
}
private function CreatePolygonFromGeomText($geomText)
{
$geometryFactory = new MgGeometryFactory();
$vertices = explode(',', $geomText);
$count = $vertices[0];
$coords = new MgCoordinateCollection();
for ($i = 0; $i < $count; $i++)
{
$coord = $geometryFactory->CreateCoordinateXY((double) $vertices[($i * 2) + 1], (double) $vertices[($i * 2) + 2]);
$coords->Add($coord);
}
//Some provider such as SQL Server Spatial, ODBC requires the polygon's start point must be the same as end point.
if(($count>2) && (($coords->GetItem(0)->GetX() != $coords->GetItem($count-1)->GetX()) || ($coords->GetItem(0)->GetY() != $coords->GetItem($count-1)->GetY())))
{
$coord = $geometryFactory->CreateCoordinateXY($coords->GetItem(0)->GetX(), $coords->GetItem(0)->GetY());
$coords->Add($coord);
}
$linearRing = $geometryFactory->CreateLinearRing($coords);
$polygon = $geometryFactory->CreatePolygon($linearRing, null);
return $polygon;
}
function AddPolygon()
{
$geometryFactory = new MgGeometryFactory();
$agfWriter = new MgAgfReaderWriter();
$vertices = explode(',', $this->args['GEOMETRY']);
$count = $vertices[0];
$coords = new MgCoordinateCollection();
for ($i = 0; $i < $count; $i++) {
$coord = $geometryFactory->CreateCoordinateXY((double) $vertices[$i * 2 + 1], (double) $vertices[$i * 2 + 2]);
$coords->Add($coord);
}
// Add the first vertex to make the ring close
if ($count > 2) {
$coord = $geometryFactory->CreateCoordinateXY((double) $vertices[1], (double) $vertices[2]);
$coords->Add($coord);
}
$linearRing = $geometryFactory->CreateLinearRing($coords);
$polygon = $geometryFactory->CreatePolygon($linearRing, null);
$trans = $this->GetTransform();
if (null != $trans) {
$polygon = $polygon->Transform($trans);
}
$byteReader = $agfWriter->Write($polygon);
$propertyValues = new MgPropertyCollection();
$propertyValues->Add(new MgStringProperty('Text', $this->args['TEXT']));
$propertyValues->Add(new MgGeometryProperty('Geometry', $byteReader));
$this->InsertMarkupFeature($propertyValues);
}
