fieldName = it.key(); fieldMapIt = fieldMap.find( fieldName );if( fieldMapIt == fieldMap.constEnd() ) {continue; } QgsField field = fields.at( fieldMapIt.value() );if( field.type() ==2) layer->changeAttributeValue( *fidIt, fieldMapIt.value(), it.value().toInt( &conversio...
messages(https://github.com/qgis/QGIS/blob/master/i18n/qgis_de.ts). <message> <location filename="../src/app/qgsattributetabledialog.cpp" line="969"/> Failed to add field '%1' of type '%2'. Is the field name unique? <translation>Could not add field '%1' of type '%2'. Is ...
sll->setOutputUnit( QgsUnitTypes::RenderMapUnits );// sll->setUseCustomDashPattern( true );// sll->setCustomDashPatternUnit( QgsSymbolV2::MapUnit );// sll->setDataDefinedProperty( QgsSymbolLayer::PropertyCustomDash, QgsProperty::fromField( "linetype" ) );sym->changeSymbolLayer(0, sll )...
方法一:字段计算器 打开图层属性,选择 "字段" 标签。 选择字段计算器,打开字段计算器窗口。 设置好输出字段,并输入转换表达式。 to_int(renkou) 其中renkou是原字段名,点击确认后,再查看数据,发现新的字段已经添加完成。 方法二:重构字段 另外一种上方法是使用QGIS工具箱中的重构字段工具。 双击打开字段重构界面。
Alongside examining overlaps between mitigation and adaptation, scholars have also studied progress in each climate action field independently. Since we can measure and assess decarbonization ambitions fairly easily by using CO2eq to quantify GHG reduction targets, studies have been able to compare urban...
The open-field structure (openness) of these landscapes has a significant aesthetic-perceptive value and makes us recognize the atmosphere and the sense of places, the perception of a long-lasting history of adaptation, survival, and landscape anthropization. At the same time, all this is ...
For this reason, the author, in close collaboration with die.wildbach, developed a set of tools (pyAlpineRisk) that can be applied in the field of natural hazard management and adapted to other scientific enquiries. By using simple terrain models (DTM) and various spatial analysis methods, ...
Then pickWGS 84/EPSG:4326from either the top or bottom panel. If it isn’t there automatically, just type4326into theFilterfield. ClickOK. Your view might shift a little bit! Mine sure did. To check that reprojection is going to work, wiggle your mouse around in an area you’re famili...
vl->changeAttributeValue( fid, fieldIdx, newValue, oldValue ); vl->endEditCommand(); } } } 开发者ID:exlimit,项目名称:QGIS,代码行数:33,代码来源:qgsattributetabledelegate.cpp 示例5: setModelData ▲点赞 1▼ voidQgsAttributeTableDelegate::setModelData( QWidget *editor, QAbstractItemModel *mod...
myFieldList, layer.wkbType(), myGeoCrs,#'SQLite') # FIXME (Ole): This works but is far too slow'ESRI Shapefile')ifmyWriter.hasError() != QgsVectorFileWriter.NoError: myMessage = tr('Error when creating shapefile: Filename:''%sError: %s'% (myFilename...