Geographic Information Systems Questions, Problems & Solutions : TransWikia.com ~ Page 66

Atlas export using Python: AttributeError: 'NoneType' object has no attribute 'atlas'

I'm trying to export my atlas layout named "Atlas_png", but are getting the error: AttributeError: 'NoneType' object has no attribute 'atlas' (line 27).I have tried to use this examples:...

Asked on 08/28/2021

0 answer

Mapbox GL JS: Displaying polygons from different coordinate systems / projections

I'm new to GIS and have access to OS MasterMap Topography Layer data (UK). I've got it loaded into PostGIS and am querying the polygons that I'm interested in (buildings)....

Asked on 08/28/2021 by gbuckingham89

1 answer

Understanding what levels to use in gdaladdo

I am trying to understand how tiles overviews and levels interact using GDAL so i know how to use it appropriate and optimize my rasters to use either in QGIS...

Asked on 08/28/2021 by geogrow

0 answer

QGIS GDAL Vectorinformation: Can only extract one layer of the geopackage while I want all

Currently I am trying to extract vector information with the GDAL Vectorinformation tool on a geopackage. The problem is I only get one layer extracted out of the geopackage while...

Asked on 08/28/2021

0 answer

Converting a FLIR image CSV to TIFF using Python

I have a geolocated CSV file containing one lat, long coordinate for the entire thermal image. I would like to convert this CSV to a TIFF using Python so that...

Asked on 08/28/2021

1 answer

Create new date for temporal layer in QGIS

I have a bunch of features (e.g. 'sampling point 1') and am storing a bunch of environmental data for each feature (e.g. 'pH', 'EC', etc.) plus a date. The new...

Asked on 08/27/2021 by vorpal

2 answer

How to remove extra field from LAS file with laspy

I have LAS files with a useless extra scalar field (named "tree") that I would like to remove. I tried the following code to create a new LAS file, copy...

Asked on 08/27/2021 by Kas

0 answer

Deleting values less than 0.31 in NDVI raster layer in QGIS

In my research I have a Ndvi raster layer, and I want to delete the values corresponding to bare soil, which are those minor of 0.31. Therefore, I will obtain...

Asked on 08/27/2021 by Ange

2 answer

Joining attributes by location for multiple layers using PyQGIS

Using the script below, I've created a list of catchment area corresponding to a list of outlets. It works perfectly but I would like to keep the attributes of my...

Asked on 08/27/2021

1 answer

Classification: Layer error: Classifier training failed: 'Only one class.'

i am new in GEE and try a tutorial from this https://www.gears-lab.com/intro_rs_lab4/ but the result show error classifier training failed: 'Only one class.'. So i try to...

Asked on 08/27/2021 by Jatu Kusuma Rahardian

1 answer

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