Hi,
2016-07-24 10:59 GMT+02:00 Lene Fischer <l...@ign.ku.dk>: > Hi Kory, > > > Field calculator : > It works fine here - If you select a feature - and update - please > remember the toggle for 'Only update selected feature' > So if you have selected one feature and then updated. > Also remember - that a calculation is only values at that moment. It is > not a dynamic calculation. You have to update if you move your feature. > > And to complete Lene's answer, if you want the value to be live-updated, you might use virtual field <http://docs.qgis.org/2.14/en/docs/user_manual/working_with_vector/attribute_table.html#editing-attribute-values> Harrissou Regards > Lene Fischer > > > > > > -----Oprindelig meddelelse----- > Fra: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] På vegne af > Kory Roberts > Sendt: 24. juli 2016 10:18 > Til: qgis-user@lists.osgeo.org > Emne: [Qgis-user] QGIS 2.16 Form View and Field Calculator Buggy? > > I'm running into all kinds of seemingly buggy behaviors with the form view > and field calculator on QGIS 2.16. Here are some actions and results: > > FORM VIEW > 1) Start a fresh QGIS project. > 2) Create a new point Shapefile layer. > 3) Add a new field "test_num" as a decimal number and "text_txt" as text > data. > 4) Toggle edit mode and add a point. Give id as "1", others as NULL. > 5) Save layer edits. > 6) Open attribute table in table view and enter some text in "text_txt". > 7) Switch to form view. > ---- BUG 1?: "text_txt" displays NULL instead the text. Clicking around > and even saving does not seem to refresh the view. The only thing that > seems to work is to click off of the item in column preview and then select > it again. > 8) In form view, open field calculator. > 9) Select update existing field and "text_num". > 10) Enter a number in the expression space and click OK. > ---- BUG 2?: "text_num" displays no change. > > FIELD CALCULATOR > 11) Add another point to the canvas. > 12) Save edits. > 13) Open field calculator. > 14) Enter "$x" in the expression space and check the output preview. > 15) Select the other point. > 16) Recheck the value for "$x"...It's the same as before. > ---- BUG 3?: This might be me misunderstanding how these variables work, > but I thought $x and $y should change depending on the current feature > selected or being edited? In an actual work layer with many points, I keep > getting the same values for $x and $y regardless of what I try. > > Trying similar actions to bug hunt has resulted in at least 2 > freezes/crashes of QGIS along the way, too. > > ~Kory > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user >
_______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: http://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
