/**
* @param WKBBuffer $buffer
* @param integer $srid
*
* @return Geometry
*
* @throws GeometryIOException
*/
protected function readGeometry(WKBBuffer $buffer, $srid)
{
$buffer->readByteOrder();
$this->readGeometryHeader($buffer, $geometryType, $hasZ, $hasM, $srid);
$cs = new CoordinateSystem($hasZ, $hasM, $srid);
switch ($geometryType) {
case Geometry::POINT:
return $this->readPoint($buffer, $cs);
case Geometry::LINESTRING:
return $this->readLineString($buffer, $cs);
case Geometry::CIRCULARSTRING:
return $this->readCircularString($buffer, $cs);
case Geometry::COMPOUNDCURVE:
return $this->readCompoundCurve($buffer, $cs);
case Geometry::POLYGON:
return $this->readPolygon($buffer, $cs);
case Geometry::CURVEPOLYGON:
return $this->readCurvePolygon($buffer, $cs);
case Geometry::MULTIPOINT:
return $this->readMultiPoint($buffer, $cs);
case Geometry::MULTILINESTRING:
return $this->readMultiLineString($buffer, $cs);
case Geometry::MULTIPOLYGON:
return $this->readMultiPolygon($buffer, $cs);
case Geometry::GEOMETRYCOLLECTION:
return $this->readGeometryCollection($buffer, $cs);
case Geometry::POLYHEDRALSURFACE:
return $this->readPolyhedralSurface($buffer, $cs);
case Geometry::TIN:
return $this->readTIN($buffer, $cs);
case Geometry::TRIANGLE:
return $this->readTriangle($buffer, $cs);
}
throw GeometryIOException::unsupportedGeometryType($geometryType);
}
/**
* @param Geometry $geometry The geometry to export as WKT.
*
* @return string The WKT representation of the given geometry.
*
* @throws GeometryIOException If the given geometry cannot be exported as WKT.
*/
protected function doWrite(Geometry $geometry)
{
$type = strtoupper($geometry->geometryType());
$cs = $geometry->coordinateSystem();
$hasZ = $cs->hasZ();
$hasM = $cs->hasM();
$dimensionality = '';
if ($hasZ || $hasM) {
$dimensionality .= ' ';
if ($hasZ) {
$dimensionality .= 'Z';
}
if ($hasM) {
$dimensionality .= 'M';
}
}
if ($geometry instanceof GeometryCollection) {
$isEmpty = $geometry->numGeometries() === 0;
} else {
$isEmpty = $geometry->isEmpty();
}
if ($isEmpty) {
return $type . $dimensionality . ' EMPTY';
}
if ($geometry instanceof Point) {
$data = $this->writePoint($geometry);
} elseif ($geometry instanceof LineString) {
$data = $this->writeLineString($geometry);
} elseif ($geometry instanceof CircularString) {
$data = $this->writeCircularString($geometry);
} elseif ($geometry instanceof CompoundCurve) {
$data = $this->writeCompoundCurve($geometry);
} elseif ($geometry instanceof Triangle) {
$data = $this->writePolygon($geometry);
} elseif ($geometry instanceof Polygon) {
$data = $this->writePolygon($geometry);
} elseif ($geometry instanceof CurvePolygon) {
$data = $this->writeCurvePolygon($geometry);
} elseif ($geometry instanceof MultiPoint) {
$data = $this->writeMultiPoint($geometry);
} elseif ($geometry instanceof MultiLineString) {
$data = $this->writeMultiLineString($geometry);
} elseif ($geometry instanceof MultiPolygon) {
$data = $this->writeMultiPolygon($geometry);
} elseif ($geometry instanceof GeometryCollection) {
$data = $this->writeGeometryCollection($geometry);
} elseif ($geometry instanceof TIN) {
$data = $this->writePolyhedralSurface($geometry);
} elseif ($geometry instanceof PolyhedralSurface) {
$data = $this->writePolyhedralSurface($geometry);
} else {
throw GeometryIOException::unsupportedGeometryType($geometry->geometryType());
}
return $type . $dimensionality . $this->prettyPrintSpace . '(' . $data . ')';
}
/**
* @param Geometry $geometry The geometry export as WKB write.
* @param boolean $outer False if the geometry is nested in another geometry, true otherwise.
*
* @return string The WKB representation of the given geometry.
*
* @throws GeometryIOException If the given geometry cannot be exported as WKT.
*/
protected function doWrite(Geometry $geometry, $outer)
{
if ($geometry instanceof Point) {
return $this->writePoint($geometry, $outer);
}
if ($geometry instanceof LineString) {
return $this->writeCurve($geometry, $outer);
}
if ($geometry instanceof CircularString) {
return $this->writeCurve($geometry, $outer);
}
if ($geometry instanceof Polygon) {
return $this->writePolygon($geometry, $outer);
}
if ($geometry instanceof CompoundCurve) {
return $this->writeComposedGeometry($geometry, $outer);
}
if ($geometry instanceof CurvePolygon) {
return $this->writeComposedGeometry($geometry, $outer);
}
if ($geometry instanceof GeometryCollection) {
return $this->writeComposedGeometry($geometry, $outer);
}
if ($geometry instanceof PolyhedralSurface) {
return $this->writeComposedGeometry($geometry, $outer);
}
throw GeometryIOException::unsupportedGeometryType($geometry->geometryType());
}
