# 需要导入模块: from qgis.core import QgsVectorLayer [as 别名]# 或者: from qgis.core.QgsVectorLayer importdeleteFeature[as 别名]deftestEditSubsetString(self):tmpfile = os.path.join(self.basetestpath,'testEditSubsetString.gpkg') ds = ogr.GetDriverByName('GPKG').CreateDataSource(tmpfile) ly...
Click the Delete Field button (third from the right, or press Ctrl-L) and select the fields to delete I was surprised to find that this tookages. It seemed to refresh the attribute table multiple times throughout the process (maybe after deleting each separate field?), and that took ages...
attributeChangesOk =false;// don't try attribute updates - they'll fail.}for(inti =0; i < oldFields.count(); ++i ) {constQgsField& oldField = oldFields[i];constQgsField& newField = newFields[i];if( attributeChangesOk && oldField != newField ) { commitErrors << tr("ERROR: field w...
5. Location gathering: An evaluation of smartphone-based geographic mobile field data collection hardware and applications. [D] . Clark, Joel A. 2015 机译:位置收集:对基于智能手机的地理移动领域数据收集硬件和应用程序的评估。 6. What value can Google search data add to existing syndromicsurveilla...
QGIS Zurich 3.18 Win10. I need to trace and create one polygon from a large area by following actual field lines that do not follow straight lines. As panning and scrolling often triggers a completed polygon I am creating smaller adjacent polygons then selecting both and Merging. Before Mergi...
In an editing session, query the field where areas is less than 'X'. With the polygons selected, delete the records (red circle with the X). Save the editing session and stop the editing session. This will permanently delete the records from the file. Share Improve this answer Follow ...
fieldList = ftools_utils.getFieldList(self.layer) sRs = provider.crs() geom = self.layer.wkbType() inFeat = QgsFeature() self.emit(SIGNAL("rangeCalculated(PyQt_PyObject)"), len(unique))foriinunique: check = QFile(baseName +"_"+ unicode(i).strip() +".shp") ...
I'm using QGIS 2.18 I'm trying to delete the duplicate text from a field in my Attribute table, but so far, I've not been able to find the right expression. The Field is called Municipio. I've tried with the expression: replace ( "Municipio", 'Municipio', ' ' ) but it's not...