//选择和选择几何体相交或在几何体内部的特征 pLayer->select(QgsAttributeList(),selectGeomTrans.boundingBox(),true,true); int nh=pLayer->selectedFeatureCount(); QgsFeatureIds newSelectedFeatures; QgsFeature f; int p=0; //得到当前选择的特征 while(pLayer->nextFeature(f)){ p++; QgsGeometry* g=...
Column (or field in GIS) STE_NAME21 records the Australian state for each SA2 (e.g. New South Wales). Close the attribute table. Step 3: origin-destination flow (travel to work) pre-processing From the GGX3204 DLE > QGIS, download the QGIS_GGX3204_Prac2 folder. Save this to your...
Handling of attribute types in WFS provider has bee improved. Attribute aliases for vector layers are now available. The aliases are shown instead of the original field names in the info tool and attribute table to make things easier for end users. There is now a GUI for setting edit widge...
I am adding a column to a vector layer attribute table, called TITLE REF, set as text and 20 characters. When clicking okay QGIS immediately shuts down. I then get the Apple, your program closed down unexpectedly and gives the following information; Translated Report (Full Report Below) Proce...
You will see a columnSUMCapacitin the attribute table. This is the sum of theCapacityattribute for the nursing homes that fall within each borough feature. This is the answer we are looking for. But there are extra columns that we do not need in our output. Let’s clean up our output...
(caps & QgsVectorDataProvider.DeleteFeatures) self.assertTrue(caps & QgsVectorDataProvider.ChangeAttributeValues) self.assertTrue(caps & QgsVectorDataProvider.AddAttributes) self.assertTrue(caps & QgsVectorDataProvider.DeleteAttributes) self.assertTrue(caps & QgsVectorDataProvider.CreateSpatialIndex) self....
column.expression) if exp.hasParserError(): raise Exception(exp.parserErrorString()) exp.prepare(self.layer.pendingFields()) if feature is not None: value = exp.evaluate(feature) return value else: return None Example #4Source File: CartoDBLayer.py From qgis-cartodb with GNU General Public ...
If you right click on the layer name (iklskipper32) and then select Open Attribute Table, this opens the table window. When you examine this table you will notice that there is no Area or Perimeter column present (there may, in fact, be one or both, but they are wrong because they ...
The sort tool permits sorting of attribute data and associated shapefile data to maintain alignment. Sorting is based on a single attribute column and the result of the sort is saved to a shapefile specified in the Output Shapefile box. Sorting by attribute can be helpful for ordered CSV export...
After i set Indicator column as my index it become: Anyone have idea to overcome this problem? ...Magento CE custom attribute not rendering in the search grid We have stores on Magento CE Identical code is running on both these domains (both are on different servers) One is rending ...