C++ (Cpp) QgsDxfExport::mapUnitScaleFactor示例

示例#1

文件： qgslinesymbollayerv2.cpp 项目： ACorradini/QGIS

double QgsSimpleLineSymbolLayerV2::dxfWidth( const QgsDxfExport& e, const QgsSymbolV2RenderContext& context ) const
{
  double width = mWidth;
  QgsExpression* strokeWidthExpression = expression( "width" );
  if ( strokeWidthExpression )
  {
    width = strokeWidthExpression->evaluate( const_cast<QgsFeature*>( context.feature() ) ).toDouble() * e.mapUnitScaleFactor( e.symbologyScaleDenominator(), widthUnit(), e.mapUnits() );
  }
  else if ( context.renderHints() & QgsSymbolV2::DataDefinedSizeScale )
  {
    width = mWidth * QgsSymbolLayerV2Utils::lineWidthScaleFactor( context.renderContext(), mWidthUnit, mWidthMapUnitScale );
  }

  return width * e.mapUnitScaleFactor( e.symbologyScaleDenominator(), widthUnit(), e.mapUnits() );
}

示例#2

文件： qgslinesymbollayerv2.cpp 项目： applergroup/QGIS

double QgsSimpleLineSymbolLayerV2::dxfWidth( const QgsDxfExport& e, QgsSymbolV2RenderContext& context ) const
{
  double width = mWidth;

  if ( hasDataDefinedProperty( QgsSymbolLayerV2::EXPR_WIDTH ) )
  {
    context.setOriginalValueVariable( mWidth );
    width = evaluateDataDefinedProperty( QgsSymbolLayerV2::EXPR_WIDTH, context, mWidth ).toDouble() * e.mapUnitScaleFactor( e.symbologyScaleDenominator(), widthUnit(), e.mapUnits() );
  }
  else if ( context.renderHints() & QgsSymbolV2::DataDefinedSizeScale )
  {
    width = QgsSymbolLayerV2Utils::convertToPainterUnits( context.renderContext(), mWidth, mWidthUnit, mWidthMapUnitScale );
  }

  return width * e.mapUnitScaleFactor( e.symbologyScaleDenominator(), widthUnit(), e.mapUnits() );
}

示例#3

文件： qgssymbollayerv2.cpp 项目： AaronGaim/QGIS

double QgsLineSymbolLayerV2::dxfWidth( const QgsDxfExport& e, const QgsSymbolV2RenderContext& context ) const
{
  Q_UNUSED( context );
  return ( width() * e.mapUnitScaleFactor( e.symbologyScaleDenominator(), widthUnit(), e.mapUnits() ) );
}

示例#4

文件： qgssymbollayer.cpp 项目： SrNetoChan/Quantum-GIS

double QgsLineSymbolLayer::dxfWidth( const QgsDxfExport &e, QgsSymbolRenderContext &context ) const
{
  Q_UNUSED( context );
  return width() * e.mapUnitScaleFactor( e.symbologyScale(), widthUnit(), e.mapUnits(), context.renderContext().mapToPixel().mapUnitsPerPixel() );
}