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Geographic Information Systems : Recent Questions and Answers (Page 542)

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

How to export a table in a geopackage

I'm trying to export a simple PostGIS table loaded in QGIS to a geopackage file. Here's an example:options = QgsVectorFileWriter.SaveVectorOptions()options.driverName = "GPKG"options.layerName = "_".join(myLayer.name().split(' '))geo_package = 'my_gpkg.gpkg'if not os.path.exists(geo_package):...

Asked on 09/28/2020

1 answer

Error while install Geopandas & Rasterio package under Anaconda distribution

I have installed Anaconda distribution with space between user account (Parul Jain) Anaconda navigator launched and created a new channel (conda- forge) and installed Geopandas, Geopy, Rasterio and Matplotlib.Launch the...

Asked on 09/28/2020 by parul

0 answer

Write referenced GeoTiff with 4 corners on matlab

I have some matlab raster matrix to export to geotif.I also have the location of each corner in Decimal degrees (WGS84).I know how to export and write the...

Asked on 09/27/2020 by user85934

1 answer

QGIS: How to avoid using coalesce() in GPKG query layer for correct type casting?

I query the following layer via DB Manager:select fid, geom, cast((field2*100/field1-100) as double) as dev from tablefield1 and field2 are integers and have NULL values. Now in the...

Asked on 09/27/2020 by maxwhere

0 answer

Google Earth Engine Mosaic of Individual images

I would like to make a mosaic of 3 specific Date and Time Landsat 8 images corresponding to thermal band 10, where overlapping pixels between images in the mosaic will...

Asked on 09/26/2020 by Gab

1 answer

I need to export the list of IDs of the satellite images available in Google Earth Engine to work in Excel. I just need the ID

I am working with Google Earth Engine and I need to export the collection as a list, to be able to work it in Excel. What I mean is being...

Asked on 09/26/2020 by Constanza Romero

1 answer

Remove layer indicator in QGIS

I would like to be able to change or remove the tooltip when the mouse is over a layer in TOC.I've seen in source code that i must to...

Asked on 09/26/2020 by TrsBar

1 answer

SAGA Point Statistics for Polygons

I am running QGIS 3.10 on a MAC using Catalina (and I also tried on QGIS 3.4) and tried to run SAGA Point Statistics...

Asked on 09/25/2020 by Roger Haston

1 answer

Using GeoPandas generated .gpkg in ArcMap

I am using GeoPandas to create .gpkg files. Using GeoDataFrame.to_file() When opening the files in ArcMap, it takes a long time updating the file extent. Files already have an spatial...

Asked on 09/25/2020 by Nicolas Cadieux

1 answer

Using Join Field in ArcPy to merge multiple tables

I'm trying to merge multiple tables using the Join Field function in ArcPy. This script currently runs perfectly to merge the multiple tables but gives the columns...

Asked on 09/24/2020 by Cheee

1 answer

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