Beispiel #1
0
QgsSymbolV2* QgsGraduatedSymbolRendererV2Widget::findSymbolForRange( double lowerBound, double upperBound, const QgsRangeList& ranges ) const
{
  for ( QgsRangeList::const_iterator it = ranges.begin(); it != ranges.end(); ++it )
  {
    //range string has been created with option 'f',4
    if ( doubleNear( lowerBound, it->lowerValue(), 0.0001 ) && doubleNear( upperBound, it->upperValue(), 0.0001 ) )
    {
      return it->symbol();
    }
  }
  return 0;
}
void QgsGraduatedSymbolRenderer::toSld( QDomDocument &doc, QDomElement &element, const QgsStringMap &props ) const
{
  QgsStringMap newProps = props;
  newProps[ QStringLiteral( "attribute" )] = mAttrName;
  newProps[ QStringLiteral( "method" )] = graduatedMethodStr( mGraduatedMethod );

  // create a Rule for each range
  bool first = true;
  for ( QgsRangeList::const_iterator it = mRanges.constBegin(); it != mRanges.constEnd(); ++it )
  {
    it->toSld( doc, element, newProps, first );
    first = false;
  }
}
void QgsGraduatedSymbolRenderer::toSld( QDomDocument& doc, QDomElement &element, QgsStringMap props ) const
{
  props[ "attribute" ] = mAttrName;
  props[ "method" ] = graduatedMethodStr( mGraduatedMethod );

  // create a Rule for each range
  bool first = true;
  for ( QgsRangeList::const_iterator it = mRanges.constBegin(); it != mRanges.constEnd(); ++it )
  {
    QgsStringMap catProps( props );
    it->toSld( doc, element, catProps, first );
    first = false;
  }
}
void QgsGraduatedSymbolRendererV2::toSld( QDomDocument& doc, QDomElement &element ) const
{
  QgsStringMap props;
  props[ "attribute" ] = mAttrName;
  if ( mRotation.data() )
    props[ "angle" ] = mRotation->expression();
  if ( mSizeScale.data() )
    props[ "scale" ] = mSizeScale->expression();

  // create a Rule for each range
  for ( QgsRangeList::const_iterator it = mRanges.constBegin(); it != mRanges.constEnd(); ++it )
  {
    QgsStringMap catProps( props );
    it->toSld( doc, element, catProps );
  }
}
void QgsGraduatedSymbolRendererV2::toSld( QDomDocument& doc, QDomElement &element ) const
{
  QgsStringMap props;
  props[ "attribute" ] = mAttrName;
  if ( !mRotationField.isEmpty() )
    props[ "angle" ] = QString( mRotationField ).append( "\"" ).prepend( "\"" );
  if ( !mSizeScaleField.isEmpty() )
    props[ "scale" ] = QString( mSizeScaleField ).append( "\"" ).prepend( "\"" );

  // create a Rule for each range
  for ( QgsRangeList::const_iterator it = mRanges.constBegin(); it != mRanges.constEnd(); it++ )
  {
    QgsStringMap catProps( props );
    it->toSld( doc, element, catProps );
  }
}
QgsSymbol *QgsGraduatedSymbolRendererWidget::findSymbolForRange( double lowerBound, double upperBound, const QgsRangeList &ranges ) const
{
  int decimalPlaces = mRenderer->labelFormat().precision() + 2;
  if ( decimalPlaces < 0 )
    decimalPlaces = 0;
  double precision = 1.0 / std::pow( 10, decimalPlaces );

  for ( QgsRangeList::const_iterator it = ranges.begin(); it != ranges.end(); ++it )
  {
    if ( qgsDoubleNear( lowerBound, it->lowerValue(), precision ) && qgsDoubleNear( upperBound, it->upperValue(), precision ) )
    {
      return it->symbol();
    }
  }
  return nullptr;
}
QgsLegendSymbolList QgsGraduatedSymbolRendererV2::legendSymbolItems()
{
  QSettings settings;
  bool showClassifiers = settings.value( "/qgis/showLegendClassifiers", false ).toBool();

  QgsLegendSymbolList lst;
  if ( showClassifiers )
  {
    lst << qMakePair( classAttribute(), ( QgsSymbolV2* )0 );
  }

  QgsRangeList::const_iterator rangeIt = mRanges.constBegin();
  for ( ; rangeIt != mRanges.constEnd(); ++rangeIt )
  {
    lst << qMakePair( rangeIt->label(), rangeIt->symbol() );
  }
  return lst;
}