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Geographic Information Systems : Recent Questions and Answers (Page 39)

Find answers to your questions about Geographic Information Systems or help others by answering their Geographic Information Systems questions.

Use a spatial lag model to predict (in R)

I have two polygon datasets, one for year 2010 and another for year 2015, each containing multiple features with a number of different variables. I used a spatial lag...

Asked on 10/04/2021 by Jcstay

0 answer

Selecting features from multiple layers for export QGIS 3.6

I have multiple features I want to select over multiple layers and then export these selected features to a new layer. The 'Multiple Layer Selection' plugin is not supported...

Asked on 10/04/2021 by joelraburton

2 answer

QGIS 3x can't run the custom crs for Ordnance Survey maps

Recently I solved the problem regarding the mismatch between British National Grid CRS and WGS 84 in the query below: QGS 3x Ordnance Survey map doesn't overlay the Google...

Asked on 10/04/2021

1 answer

geometry less memory layer in QGIS

I'm writing a QGIS plugin and I need to create a table with some attributes that, in a second moment, I'll load in a SpatiaLite database. The table is created...

Asked on 10/04/2021

2 answer

Can't login to QGIS Cloud plugin - QGIS 3.8 OSX 10.13

I have a QGIS cloud account (free) and login via the web-page, so I think my access is fine. But when I try to login via the QGISCloud plug-in via...

Asked on 10/04/2021 by Nik Henry

0 answer

Getinfo only returns the first cover inserted

I'm using GetInfo to view the cover information and my problem using this command is: The information displayed is not from the cover seen on the map, but from the...

Asked on 10/04/2021 by Dany

1 answer

Call different functions when clicking on a map vs. clicking on a polygon in Leaflet

I have a map and I add a featureGroup to it. Then, I add some polygons to the featureGroup.Now I want something to happen, when a polygon in featureGroup...

Asked on 10/04/2021 by Selphiron

1 answer

Issue with Forest road Designer plugin in QGIS 2.18.28

I have both QGIS 2.18.28 and QGIS 3.14.1 on my PC. Forest Road Designer works only on QGIS 2.18.28 version. I am trying to use this plugin, but I got...

Asked on 10/04/2021

0 answer

Add Field doesn't work on ArcPy (ArcGIS) in a loop

I am trying to add a field to each shapefile inside several folders in ArcGIS with Arcpy. I am executing the following code.import arcpy, os# Overwrite pre-existing filesarcpy.env.overwriteOutput =...

Asked on 10/04/2021 by skall411

1 answer

Warning message when using read.zoo function in R

I have dataset (ndvi_bfast) that contains index daily mean covering about 998 days (2002-2020) . It looks like: date mean <dbl> ...

Asked on 10/04/2021

1 answer

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