C++ qgscategorylist::const_iterator类代码示例

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本文整理汇总了C++中qgscategorylist::const_iterator类的典型用法代码示例。如果您正苦于以下问题：C++ const_iterator类的具体用法？C++ const_iterator怎么用？C++ const_iterator使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了const_iterator类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: testExpr

QList<QString> QgsCategorizedSymbolRendererV2::usedAttributes()
{
  QSet<QString> attributes;

  // mAttrName can contain either attribute name or an expression.
  // Sometimes it is not possible to distinguish between those two,
  // e.g. "a - b" can be both a valid attribute name or expression.
  // Since we do not have access to fields here, try both options.
  attributes << mAttrName;

  QgsExpression testExpr( mAttrName );
  if ( !testExpr.hasParserError() )
    attributes.unite( testExpr.referencedColumns().toSet() );

  if ( mRotation.data() ) attributes.unite( mRotation->referencedColumns().toSet() );
  if ( mSizeScale.data() ) attributes.unite( mSizeScale->referencedColumns().toSet() );

  QgsCategoryList::const_iterator catIt = mCategories.constBegin();
  for ( ; catIt != mCategories.constEnd(); ++catIt )
  {
    QgsSymbolV2* catSymbol = catIt->symbol();
    if ( catSymbol )
    {
      attributes.unite( catSymbol->usedAttributes() );
    }
  }
  return attributes.toList();
}

开发者ID:Br1ndavoine，项目名称:QGIS，代码行数:28，代码来源:qgscategorizedsymbolrendererv2.cpp

示例2: catProps

void QgsCategorizedSymbolRendererV2::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 ( QgsCategoryList::const_iterator it = mCategories.constBegin(); it != mCategories.constEnd(); ++it )
  {
    QgsStringMap catProps( props );
    it->toSld( doc, element, catProps );
  }
}

开发者ID:CSRedRat，项目名称:QGIS，代码行数:16，代码来源:qgscategorizedsymbolrendererv2.cpp

示例3: catProps

void QgsCategorizedSymbolRendererV2::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 ( QgsCategoryList::const_iterator it = mCategories.constBegin(); it != mCategories.constEnd(); it++ )
  {
    QgsStringMap catProps( props );
    it->toSld( doc, element, catProps );
  }
}

开发者ID:Adam-Brown，项目名称:Quantum-GIS，代码行数:16，代码来源:qgscategorizedsymbolrendererv2.cpp

示例4: qMakePair

QgsLegendSymbolList QgsCategorizedSymbolRendererV2::legendSymbolItems()
{
  QSettings settings;
  bool showClassifiers = settings.value( "/qgis/showLegendClassifiers", false ).toBool();

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

  QgsCategoryList::const_iterator catIt = mCategories.constBegin();
  for ( ; catIt != mCategories.constEnd(); ++catIt )
  {
    lst << qMakePair( catIt->label(), catIt->symbol() );
  }
  return lst;
}

开发者ID:brushtyler，项目名称:Quantum-GIS，代码行数:18，代码来源:qgscategorizedsymbolrendererv2.cpp

示例5: exp

QList<QString> QgsCategorizedSymbolRendererV2::usedAttributes()
{
  QgsExpression exp( mAttrName );
  QSet<QString> attributes( exp.referencedColumns().toSet() );
  if ( mRotation.data() ) attributes.unite( mRotation->referencedColumns().toSet() );
  if ( mSizeScale.data() ) attributes.unite( mSizeScale->referencedColumns().toSet() );

  QgsCategoryList::const_iterator catIt = mCategories.constBegin();
  for ( ; catIt != mCategories.constEnd(); ++catIt )
  {
    QgsSymbolV2* catSymbol = catIt->symbol();
    if ( catSymbol )
    {
      attributes.unite( catSymbol->usedAttributes() );
    }
  }
  return attributes.toList();
}

开发者ID:FabrizioMu，项目名称:QGIS-1，代码行数:18，代码来源:qgscategorizedsymbolrendererv2.cpp

示例6:

QList<QString> QgsCategorizedSymbolRendererV2::usedAttributes()
{
  QSet<QString> attributes;
  attributes.insert( mAttrName );
  if ( !mRotationField.isEmpty() )
  {
    attributes.insert( mRotationField );
  }
  if ( !mSizeScaleField.isEmpty() )
  {
    attributes.insert( mSizeScaleField );
  }

  QgsCategoryList::const_iterator catIt = mCategories.constBegin();
  for ( ; catIt != mCategories.constEnd(); ++catIt )
  {
    QgsSymbolV2* catSymbol = catIt->symbol();
    if ( catSymbol )
    {
      attributes.unite( catSymbol->usedAttributes() );
    }
  }
  return attributes.toList();
}

开发者ID:Adam-Brown，项目名称:Quantum-GIS，代码行数:24，代码来源:qgscategorizedsymbolrendererv2.cpp

注：本文中的qgscategorylist::const_iterator类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。