QGIS 3中是否有一种方法来获取所选功能WKT？

在QGIS 2.x中，我使用了getWkt 插件：https : //github.com/hugoledoux/QGIS-getWKT以获取选定功能的WKT。

但是该插件在QGIS 3.x中不存在。该功能是否内置在核心QGIS 3中？还是在这种情况下我们正在等待插件赶上？

我不确定这是否实际上是QGIS 2.x的一部分，因为我一直使用getWKT插件。但是可以从“识别”窗口上下文菜单访问WKT：

结果：

wkt_geom    id  OBJECTID    ID_0    ISO NAME_0  ID_1    NAME_1  ID_2    NAME_2  HASC_2  CCN_2   CCA_2   TYPE_2  ENGTYPE_2   NL_NAME_2   VARNAME_2   Shape_Length    Shape_Area
MultiPolygon (((-86.1056060791015625 34.20109939575195313, -86.10605621337890625 34.22154998779296875, -86.10604095458984375 34.22610092163091622, -86.10703277587890625 34.25019073486328125, -86.10832214355457381 34.32471084594732247, -86.10830688476556816 34.32788848876958809, -86.1097869873046875 34.36470031738286934, -86.10974121093744316 34.37469863891607247, -86.11003112792963066 34.42784881591802559, -86.05683135986328125 34.47628021240240059, -86.04846954345703125 34.47669982910167619, -86.03733062744134941 34.47574996948242188, -86.03174591064453125 34.47526931762706681, -86.02672576904296875 34.47661209106456681, -86.02169036865228691 34.48067855834960938, -86.0177764892578125 34.48247909545904122, -86.01275634765619316 34.48200988769536934, -86.00663757324213066 34.48107147216808244, -86.00216674804681816 34.48196029663097306, -85.99098205566400566 34.48736953735351563, -85.98596954345703125 34.48688888549816056, -85.9837188720703125 34.490509033203125, -85.97757720947265625 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34.51490020751953125, -85.53459930419921875 34.51354980468744316, -85.535186767578125 34.51082992553710938, -85.5408172607421875 34.50632858276372872, -85.54480743408203125 34.50001144409185372, -85.5475921630859375 34.500030517578125, -85.5509033203125 34.50323867797857247, -85.55480194091791191 34.50371932983409806, -85.55871582031238631 34.50239181518549003, -85.55771636962890625 34.49238967895513497, -85.559417724609375 34.49058914184570313, -85.56835174560535506 34.48974990844737931, -85.57063293457025566 34.4861297607421875, -85.5767822265625 34.48390960693365059, -85.57459259033203125 34.48070907592773438, -85.57350158691394881 34.47888946533203125, -85.57071685791009941 34.47795867919927559, -85.5702972412109375 34.46704864501953125, -85.57639312744140625 34.47072982788080253, -85.5808563232421875 34.46986007690435372, -85.577606201171875 34.46165847778325997, -85.57930755615228691 34.45940017700200997, -85.58377075195306816 34.45851898193365059, -85.57946014404296875 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34.19992065429693184, -86.01341247558588066 34.19984054565441056, -86.02507781982421875 34.19989013671880684, -86.04508209228509941 34.19997024536138497, -86.06896209716796875 34.20051956176757813, -86.09284210205072441 34.20059967041015625, -86.10173034667963066 34.20109176635742188, -86.1056060791015625 34.20109939575195313)))  25  25  244 USA United States   1   Alabama 25  De Kalb US.AL.DA    0       County  County          2.16771912642183    0.197712887515082

更新：
可以在以下位置修改复制功能的行为Options | Data Sources | Feature attributes and table | Copy features as：

因此，如果将其设置为GeoJson或不设置任何几何图形，则需要使用辅助选项来获取WKT（请参阅此问题的其他答案）。

不知道这是否满足您的需求，但是您可以（并且总是可以）通过添加以下内容的虚拟层来从字段计算器获得WKT：

geomToWKT( $geometry )

您还可以在Python控制台中使用以下命令（尽管您的方法会更快）：

layer = iface.activeLayer()
for feat in layer.selectedFeatures():
    print(feat.geometry().asWkt())

选择某些功能后，您可以简单地使用复制按钮或Ctrl + c复制功能。

然后，您可以粘贴在电子表格或记事本上。几何列将以WKT表示。

获得WKT的方法有很多，例如使用前面提到的表达式创建一个字段（虚拟的或不虚拟的）。

但是对于您有关QuickWKT的原始问题，此插件已移植到QGIS3。请检查您的插件管理器。