Beispiel #1
0
void QgsMapToolCapture::validateGeometry()
{
  QSettings settings;
  if ( settings.value( "/qgis/digitizing/validate_geometries", 1 ).toInt() == 0 )
    return;

  if ( mValidator )
  {
    mValidator->deleteLater();
    mValidator = 0;
  }

  mTip = "";
  mGeomErrors.clear();
  while ( !mGeomErrorMarkers.isEmpty() )
  {
    delete mGeomErrorMarkers.takeFirst();
  }

  QgsGeometry *g = 0;

  switch ( mCaptureMode )
  {
    case CaptureNone:
    case CapturePoint:
      return;
    case CaptureLine:
      if ( size() < 2 )
        return;
      g = new QgsGeometry( mCaptureCurve.curveToLine() );
      break;
    case CapturePolygon:
      if ( size() < 3 )
        return;
      QgsLineStringV2* exteriorRing = mCaptureCurve.curveToLine();
      exteriorRing->close();
      QgsPolygonV2* polygon = new QgsPolygonV2();
      polygon->setExteriorRing( exteriorRing );
      g = new QgsGeometry( polygon );
      break;
  }

  if ( !g )
    return;

  mValidator = new QgsGeometryValidator( g );
  connect( mValidator, SIGNAL( errorFound( QgsGeometry::Error ) ), this, SLOT( addError( QgsGeometry::Error ) ) );
  connect( mValidator, SIGNAL( finished() ), this, SLOT( validationFinished() ) );
  mValidator->start();

  QStatusBar *sb = QgisApp::instance()->statusBar();
  sb->showMessage( tr( "Validation started." ) );
  delete g;
}
Beispiel #2
0
QgsAbstractGeometryV2* QgsGeometryImport::fromPolygon( const QgsPolygon& polygon )
{
  QgsPolygonV2* poly = new QgsPolygonV2();

  QList<QgsCurveV2*> holes;
  for ( int i = 0; i < polygon.size(); ++i )
  {
    QgsLineStringV2* l = linestringFromPolyline( polygon.at( i ) );
    l->close();

    if ( i == 0 )
    {
      poly->setExteriorRing( l );
    }
    else
    {
      holes.push_back( l );
    }
  }
  poly->setInteriorRings( holes );
  return poly;
}