C++ QgsSymbolV2Map::contains方法代码示例

本文整理汇总了C++中QgsSymbolV2Map::contains方法的典型用法代码示例。如果您正苦于以下问题：C++ QgsSymbolV2Map::contains方法的具体用法？C++ QgsSymbolV2Map::contains怎么用？C++ QgsSymbolV2Map::contains使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QgsSymbolV2Map的用法示例。

在下文中一共展示了QgsSymbolV2Map::contains方法的7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，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: convertSymbolRotation

QgsFeatureRendererV2* QgsSingleSymbolRendererV2::create( QDomElement& element )
{
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return nullptr;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );

  if ( !symbolMap.contains( "0" ) )
    return nullptr;

  QgsSingleSymbolRendererV2* r = new QgsSingleSymbolRendererV2( symbolMap.take( "0" ) );

  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  QDomElement rotationElem = element.firstChildElement( "rotation" );
  if ( !rotationElem.isNull() && !rotationElem.attribute( "field" ).isEmpty() )
  {
    convertSymbolRotation( r->mSymbol.data(), rotationElem.attribute( "field" ) );
  }

  QDomElement sizeScaleElem = element.firstChildElement( "sizescale" );
  if ( !sizeScaleElem.isNull() && !sizeScaleElem.attribute( "field" ).isEmpty() )
  {
    convertSymbolSizeScale( r->mSymbol.data(),
                            QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ),
                            sizeScaleElem.attribute( "field" ) );
  }

  // TODO: symbol levels
  return r;
}

开发者ID:Zakui，项目名称:QGIS，代码行数:33，代码来源:qgssinglesymbolrendererv2.cpp

示例2:

QgsFeatureRendererV2* QgsSingleSymbolRendererV2::create( QDomElement& element )
{
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return NULL;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );

  if ( !symbolMap.contains( "0" ) )
    return NULL;

  QgsSingleSymbolRendererV2* r = new QgsSingleSymbolRendererV2( symbolMap.take( "0" ) );

  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  QDomElement rotationElem = element.firstChildElement( "rotation" );
  if ( !rotationElem.isNull() )
    r->setRotationField( rotationElem.attribute( "field" ) );

  QDomElement sizeScaleElem = element.firstChildElement( "sizescale" );
  if ( !sizeScaleElem.isNull() )
  {
    r->setSizeScaleField( sizeScaleElem.attribute( "field" ) );
    r->setScaleMethod( QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ) );
  }

  // TODO: symbol levels
  return r;
}

开发者ID:RossGammon，项目名称:QGIS，代码行数:30，代码来源:qgssinglesymbolrendererv2.cpp

示例3: QgsDebugMsg

QgsFeatureRendererV2* QgsRuleBasedRendererV2::create( QDomElement& element )
{
  // load symbols
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return NULL;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );

  if ( !symbolMap.contains( "default" ) )
  {
    QgsDebugMsg( "default symbol not found!" );
    return NULL;
  }

  QgsRuleBasedRendererV2* r = new QgsRuleBasedRendererV2( symbolMap.take( "default" ) );
  r->mRules.clear();

  QDomElement rulesElem = element.firstChildElement( "rules" );
  QDomElement ruleElem = rulesElem.firstChildElement( "rule" );
  while ( !ruleElem.isNull() )
  {
    QString symbolIdx = ruleElem.attribute( "symbol" );
    if ( symbolMap.contains( symbolIdx ) )
    {
      QString filterExp = ruleElem.attribute( "filter" );
      QString label = ruleElem.attribute( "label" );
      QString description = ruleElem.attribute( "description" );
      int scaleMinDenom = ruleElem.attribute( "scalemindenom", "0" ).toInt();
      int scaleMaxDenom = ruleElem.attribute( "scalemaxdenom", "0" ).toInt();
      r->mRules.append( Rule( symbolMap.take( symbolIdx ), scaleMinDenom, scaleMaxDenom, filterExp, label, description ) );
    }
    else
    {
      QgsDebugMsg( "symbol for rule " + symbolIdx + " not found! (skipping)" );
    }
    ruleElem = ruleElem.nextSiblingElement( "rule" );
  }

  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  return r;
}

开发者ID:CzendaZdenda，项目名称:qgis，代码行数:44，代码来源:qgsrulebasedrendererv2.cpp

示例4: if

QgsFeatureRendererV2* QgsGraduatedSymbolRendererV2::create( QDomElement& element )
{
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return NULL;

  QDomElement rangesElem = element.firstChildElement( "ranges" );
  if ( rangesElem.isNull() )
    return NULL;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );
  QgsRangeList ranges;

  QDomElement rangeElem = rangesElem.firstChildElement();
  while ( !rangeElem.isNull() )
  {
    if ( rangeElem.tagName() == "range" )
    {
      double lowerValue = rangeElem.attribute( "lower" ).toDouble();
      double upperValue = rangeElem.attribute( "upper" ).toDouble();
      QString symbolName = rangeElem.attribute( "symbol" );
      QString label = rangeElem.attribute( "label" );
      if ( symbolMap.contains( symbolName ) )
      {
        QgsSymbolV2* symbol = symbolMap.take( symbolName );
        ranges.append( QgsRendererRangeV2( lowerValue, upperValue, symbol, label ) );
      }
    }
    rangeElem = rangeElem.nextSiblingElement();
  }

  QString attrName = element.attribute( "attr" );

  QgsGraduatedSymbolRendererV2* r = new QgsGraduatedSymbolRendererV2( attrName, ranges );

  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  // try to load source symbol (optional)
  QDomElement sourceSymbolElem = element.firstChildElement( "source-symbol" );
  if ( !sourceSymbolElem.isNull() )
  {
    QgsSymbolV2Map sourceSymbolMap = QgsSymbolLayerV2Utils::loadSymbols( sourceSymbolElem );
    if ( sourceSymbolMap.contains( "0" ) )
    {
      r->setSourceSymbol( sourceSymbolMap.take( "0" ) );
    }
    QgsSymbolLayerV2Utils::clearSymbolMap( sourceSymbolMap );
  }

  // try to load color ramp (optional)
  QDomElement sourceColorRampElem = element.firstChildElement( "colorramp" );
  if ( !sourceColorRampElem.isNull() && sourceColorRampElem.attribute( "name" ) == "[source]" )
  {
    r->setSourceColorRamp( QgsSymbolLayerV2Utils::loadColorRamp( sourceColorRampElem ) );
    QDomElement invertedColorRampElem = element.firstChildElement( "invertedcolorramp" );
    if ( !invertedColorRampElem.isNull() )
      r->setInvertedColorRamp( invertedColorRampElem.attribute( "value" ) == "1" );
  }

  // try to load mode
  QDomElement modeElem = element.firstChildElement( "mode" );
  if ( !modeElem.isNull() )
  {
    QString modeString = modeElem.attribute( "name" );
    if ( modeString == "equal" )
      r->setMode( EqualInterval );
    else if ( modeString == "quantile" )
      r->setMode( Quantile );
    else if ( modeString == "jenks" )
      r->setMode( Jenks );
    else if ( modeString == "stddev" )
      r->setMode( StdDev );
    else if ( modeString == "pretty" )
      r->setMode( Pretty );
  }

  QDomElement rotationElem = element.firstChildElement( "rotation" );
  if ( !rotationElem.isNull() )
    r->setRotationField( rotationElem.attribute( "field" ) );

  QDomElement sizeScaleElem = element.firstChildElement( "sizescale" );
  if ( !sizeScaleElem.isNull() )
    r->setSizeScaleField( sizeScaleElem.attribute( "field" ) );
  r->setScaleMethod( QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ) );

  // TODO: symbol levels
  return r;
}

开发者ID:CSRedRat，项目名称:QGIS，代码行数:89，代码来源:qgsgraduatedsymbolrendererv2.cpp

示例5: while

QgsFeatureRendererV2* QgsCategorizedSymbolRendererV2::create( QDomElement& element )
{
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return NULL;

  QDomElement catsElem = element.firstChildElement( "categories" );
  if ( catsElem.isNull() )
    return NULL;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );
  QgsCategoryList cats;

  QDomElement catElem = catsElem.firstChildElement();
  while ( !catElem.isNull() )
  {
    if ( catElem.tagName() == "category" )
    {
      QVariant value = QVariant( catElem.attribute( "value" ) );
      QString symbolName = catElem.attribute( "symbol" );
      QString label = catElem.attribute( "label" );
      if ( symbolMap.contains( symbolName ) )
      {
        QgsSymbolV2* symbol = symbolMap.take( symbolName );
        cats.append( QgsRendererCategoryV2( value, symbol, label ) );
      }
    }
    catElem = catElem.nextSiblingElement();
  }

  QString attrName = element.attribute( "attr" );

  QgsCategorizedSymbolRendererV2* r = new QgsCategorizedSymbolRendererV2( attrName, cats );

  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  // try to load source symbol (optional)
  QDomElement sourceSymbolElem = element.firstChildElement( "source-symbol" );
  if ( !sourceSymbolElem.isNull() )
  {
    QgsSymbolV2Map sourceSymbolMap = QgsSymbolLayerV2Utils::loadSymbols( sourceSymbolElem );
    if ( sourceSymbolMap.contains( "0" ) )
    {
      r->setSourceSymbol( sourceSymbolMap.take( "0" ) );
    }
    QgsSymbolLayerV2Utils::clearSymbolMap( sourceSymbolMap );
  }

  // try to load color ramp (optional)
  QDomElement sourceColorRampElem = element.firstChildElement( "colorramp" );
  if ( !sourceColorRampElem.isNull() && sourceColorRampElem.attribute( "name" ) == "[source]" )
  {
    r->setSourceColorRamp( QgsSymbolLayerV2Utils::loadColorRamp( sourceColorRampElem ) );
    QDomElement invertedColorRampElem = element.firstChildElement( "invertedcolorramp" );
    if ( !invertedColorRampElem.isNull() )
      r->setInvertedColorRamp( invertedColorRampElem.attribute( "value" ) == "1" );
  }

  QDomElement rotationElem = element.firstChildElement( "rotation" );
  if ( !rotationElem.isNull() )
    r->setRotationField( rotationElem.attribute( "field" ) );

  QDomElement sizeScaleElem = element.firstChildElement( "sizescale" );
  if ( !sizeScaleElem.isNull() )
  {
    r->setSizeScaleField( sizeScaleElem.attribute( "field" ) );
    r->setScaleMethod( QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ) );
  }

  // TODO: symbol levels
  return r;
}

开发者ID:CSRedRat，项目名称:QGIS，代码行数:73，代码来源:qgscategorizedsymbolrendererv2.cpp

示例6: while

QgsFeatureRendererV2* QgsCategorizedSymbolRendererV2::create( QDomElement& element )
{
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return NULL;

  QDomElement catsElem = element.firstChildElement( "categories" );
  if ( catsElem.isNull() )
    return NULL;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );
  QgsCategoryList cats;

  QDomElement catElem = catsElem.firstChildElement();
  while ( !catElem.isNull() )
  {
    if ( catElem.tagName() == "category" )
    {
      QVariant value = QVariant( catElem.attribute( "value" ) );
      QString symbolName = catElem.attribute( "symbol" );
      QString label = catElem.attribute( "label" );
      bool render = catElem.attribute( "render" ) != "false";
      if ( symbolMap.contains( symbolName ) )
      {
        QgsSymbolV2* symbol = symbolMap.take( symbolName );
        cats.append( QgsRendererCategoryV2( value, symbol, label, render ) );
      }
    }
    catElem = catElem.nextSiblingElement();
  }

  QString attrName = element.attribute( "attr" );

  QgsCategorizedSymbolRendererV2* r = new QgsCategorizedSymbolRendererV2( attrName, cats );

  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  // try to load source symbol (optional)
  QDomElement sourceSymbolElem = element.firstChildElement( "source-symbol" );
  if ( !sourceSymbolElem.isNull() )
  {
    QgsSymbolV2Map sourceSymbolMap = QgsSymbolLayerV2Utils::loadSymbols( sourceSymbolElem );
    if ( sourceSymbolMap.contains( "0" ) )
    {
      r->setSourceSymbol( sourceSymbolMap.take( "0" ) );
    }
    QgsSymbolLayerV2Utils::clearSymbolMap( sourceSymbolMap );
  }

  // try to load color ramp (optional)
  QDomElement sourceColorRampElem = element.firstChildElement( "colorramp" );
  if ( !sourceColorRampElem.isNull() && sourceColorRampElem.attribute( "name" ) == "[source]" )
  {
    r->setSourceColorRamp( QgsSymbolLayerV2Utils::loadColorRamp( sourceColorRampElem ) );
    QDomElement invertedColorRampElem = element.firstChildElement( "invertedcolorramp" );
    if ( !invertedColorRampElem.isNull() )
      r->setInvertedColorRamp( invertedColorRampElem.attribute( "value" ) == "1" );
  }

  QDomElement rotationElem = element.firstChildElement( "rotation" );
  if ( !rotationElem.isNull() && !rotationElem.attribute( "field" ).isEmpty() )
  {
    QgsCategoryList::iterator it = r->mCategories.begin();
    for ( ; it != r->mCategories.end(); ++it )
    {
      convertSymbolRotation( it->symbol(), rotationElem.attribute( "field" ) );
    }
    if ( r->mSourceSymbol.data() )
    {
      convertSymbolRotation( r->mSourceSymbol.data(), rotationElem.attribute( "field" ) );
    }
  }

  QDomElement sizeScaleElem = element.firstChildElement( "sizescale" );
  if ( !sizeScaleElem.isNull() && !sizeScaleElem.attribute( "field" ).isEmpty() )
  {
    QgsCategoryList::iterator it = r->mCategories.begin();
    for ( ; it != r->mCategories.end(); ++it )
    {
      convertSymbolSizeScale( it->symbol(),
                              QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ),
                              sizeScaleElem.attribute( "field" ) );
    }
    if ( r->mSourceSymbol.data() && r->mSourceSymbol->type() == QgsSymbolV2::Marker )
    {
      convertSymbolSizeScale( r->mSourceSymbol.data(),
                              QgsSymbolLayerV2Utils::decodeScaleMethod( sizeScaleElem.attribute( "scalemethod" ) ),
                              sizeScaleElem.attribute( "field" ) );
    }
  }

  // TODO: symbol levels
  return r;
}

开发者ID:Br1ndavoine，项目名称:QGIS，代码行数:95，代码来源:qgscategorizedsymbolrendererv2.cpp

示例7: if

QgsFeatureRendererV2* QgsGraduatedSymbolRendererV2::create( QDomElement& element )
{
  QDomElement symbolsElem = element.firstChildElement( "symbols" );
  if ( symbolsElem.isNull() )
    return NULL;

  QDomElement rangesElem = element.firstChildElement( "ranges" );
  if ( rangesElem.isNull() )
    return NULL;

  QgsSymbolV2Map symbolMap = QgsSymbolLayerV2Utils::loadSymbols( symbolsElem );
  QgsRangeList ranges;

  QDomElement rangeElem = rangesElem.firstChildElement();
  while ( !rangeElem.isNull() )
  {
    if ( rangeElem.tagName() == "range" )
    {
      double lowerValue = rangeElem.attribute( "lower" ).toDouble();
      double upperValue = rangeElem.attribute( "upper" ).toDouble();
      QString symbolName = rangeElem.attribute( "symbol" );
      QString label = rangeElem.attribute( "label" );
      bool render = rangeElem.attribute( "render", "true" ) != "false";
      if ( symbolMap.contains( symbolName ) )
      {
        QgsSymbolV2* symbol = symbolMap.take( symbolName );
        ranges.append( QgsRendererRangeV2( lowerValue, upperValue, symbol, label, render ) );
      }
    }
    rangeElem = rangeElem.nextSiblingElement();
  }

  QString attrName = element.attribute( "attr" );

  QgsGraduatedSymbolRendererV2* r = new QgsGraduatedSymbolRendererV2( attrName, ranges );

  QString attrMethod = element.attribute( "graduatedMethod" );
  if ( attrMethod.length() )
  {
    if ( attrMethod == graduatedMethodStr( GraduatedColor ) )
      r->setGraduatedMethod( GraduatedColor );
    else if ( attrMethod == graduatedMethodStr( GraduatedSize ) )
      r->setGraduatedMethod( GraduatedSize );
  }


  // delete symbols if there are any more
  QgsSymbolLayerV2Utils::clearSymbolMap( symbolMap );

  // try to load source symbol (optional)
  QDomElement sourceSymbolElem = element.firstChildElement( "source-symbol" );
  if ( !sourceSymbolElem.isNull() )
  {
    QgsSymbolV2Map sourceSymbolMap = QgsSymbolLayerV2Utils::loadSymbols( sourceSymbolElem );
    if ( sourceSymbolMap.contains( "0" ) )
    {
      r->setSourceSymbol( sourceSymbolMap.take( "0" ) );
    }
    QgsSymbolLayerV2Utils::clearSymbolMap( sourceSymbolMap );
  }

  // try to load color ramp (optional)
  QDomElement sourceColorRampElem = element.firstChildElement( "colorramp" );
  if ( !sourceColorRampElem.isNull() && sourceColorRampElem.attribute( "name" ) == "[source]" )
  {
    r->setSourceColorRamp( QgsSymbolLayerV2Utils::loadColorRamp( sourceColorRampElem ) );
    QDomElement invertedColorRampElem = element.firstChildElement( "invertedcolorramp" );
    if ( !invertedColorRampElem.isNull() )
      r->setInvertedColorRamp( invertedColorRampElem.attribute( "value" ) == "1" );
  }

  // try to load mode
  QDomElement modeElem = element.firstChildElement( "mode" );
  if ( !modeElem.isNull() )
  {
    QString modeString = modeElem.attribute( "name" );
    if ( modeString == "equal" )
      r->setMode( EqualInterval );
    else if ( modeString == "quantile" )
      r->setMode( Quantile );
    else if ( modeString == "jenks" )
      r->setMode( Jenks );
    else if ( modeString == "stddev" )
      r->setMode( StdDev );
    else if ( modeString == "pretty" )
      r->setMode( Pretty );
  }

  QDomElement rotationElem = element.firstChildElement( "rotation" );
  if ( !rotationElem.isNull() && !rotationElem.attribute( "field" ).isEmpty() )
  {
    for ( QgsRangeList::iterator it = r->mRanges.begin(); it != r->mRanges.end(); ++it )
    {
      convertSymbolRotation( it->symbol(), rotationElem.attribute( "field" ) );
    }
    if ( r->mSourceSymbol.data() )
    {
      convertSymbolRotation( r->mSourceSymbol.data(), rotationElem.attribute( "field" ) );
    }
  }
//.........这里部分代码省略.........

开发者ID:Margaral，项目名称:QGIS，代码行数:101，代码来源:qgsgraduatedsymbolrendererv2.cpp

注：本文中的QgsSymbolV2Map::contains方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，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。