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Questions tagged [csv]

A comma-separated values (CSV) file stores tabular data (numbers and text) in plain-text form.

0 votes
1 answer
484 views

Read GeoJSON object in a CSV file column and transform it to geometry

I have a column ('geo_shape') that contains GeoJSON object type of linestring geometry and, so far, I didn't manage to read and transform it to a GeoPandas/shapefile type of geometry. Here is a way ...
SKSLH's user avatar
  • 1
3 votes
1 answer
1k views

Points not showing on map on QGIS

I uploaded my coordinates as a CSV file and they show on the blank page on QGIS but when I try to make them show on the map they don't, either if I use OpenStreetMap or Esri Satellite, it's like they ...
Kotku's user avatar
  • 31
4 votes
1 answer
97 views

Importing several CSV files without losing leading zeros from OS NGR into QGIS

I have ten CSVs that I need to import, in order to turn them into geopackages/shapefiles so I can edit the attribute tables etc etc. The ten files have a combined total of about 15000 entries. Each ...
Matt Mansfield's user avatar
1 vote
1 answer
46 views

Finding mean NDVI value for sub-districts within feature of shapefile between 1994 and 2011

I want to export as a CSV the mean NDVI values for the sub-districts contained within the NAME_3 feature of my shapefile. Currently I have the following code, but I am not being able to export it with ...
dingdam's user avatar
  • 23
0 votes
0 answers
67 views

Set elevation profile to CSV on ArcGIS Pro 3.x

I want to export my elevation profile analysis from ArcGIS Pro to CSV. I am able to export it, but it seems that I cannot edit the interval of elevation values exported to CSV. I want to have an ...
mtzendy's user avatar
0 votes
0 answers
30 views

Inaccurate attribute values using joins attribute in QGIS

I have a shapefile data that represent the location (polygons) and a tabular data represent its detail information. I want to merge the tabular data to the shapefile. I use QGIS 3.22.12 Here are the ...
Azzam Zainurrafi's user avatar
1 vote
2 answers
265 views

Transforming QgsPoint from one CRS to another using PyQGIS

I would like to change the coordinates of QgsPoints imported from a csv file before saving it in shapefile. I succeed to do all the step except the crs transformation, the output is keeping EPSG: 4326 ...
C. Guff's user avatar
  • 265
0 votes
1 answer
61 views

Points on map very uniform

I'm having some issues adding in some foodplant data from BSBI. I've added it in as a CSV but it's showing on the map as the below. I'm unsure if this is correct as it all looks very uniform and some ...
Leah's user avatar
  • 11
1 vote
1 answer
79 views

Importing WGS84 points into project CRS OSGB36 broken, showing black screen

I am relatively new to all things GIS. I am trying to import CSV points collected in WGS84 format eg. LAT 55.93887932 LONG -4.50803484, into a project with CRS set to OSGB36 (EPSG: 27700). This is ...
user228735's user avatar
0 votes
0 answers
14 views

db.out.ogr duplicates items and adds an empty one

I export an attribute table of streams_order layer to CSV. My attribute table in GRASS is ok: But my CSV file has all features duplicated and an odd 0 feature with no information: What's wrong and ...
Nikolay Yasinskiy's user avatar
0 votes
1 answer
49 views

How do I map points from a CSV file against bands in a raster?

I have a series of biome maps in QGIS 3.32 as multiband (RGB) raster layers. In a separate layer I have a series of points imported from a CSV file. How do I go about mapping the points (or rather a ...
Robert's user avatar
  • 3
1 vote
1 answer
137 views

How do I turn dictionary object values into columns for .csv export?

I've trained a random forest classifier, and classifier.explain() gives a dictionary containing the following keys: 0: classes 1: importance 2: numberOfTrees 3: outOfBagErrorEstimate 4: trees I store ...
Matt's user avatar
  • 151
1 vote
0 answers
62 views

Unreadable text when converting .SHP to .CSV

I am trying to convert .SHP file to .CSV using ogr2ogr in QGIS and I also have all the associated files related to the .SHP files. The text in the .SHP file is in Ukrainian and after the conversion, ...
user227880's user avatar
1 vote
0 answers
108 views

Generating a CSV table with daily SPM data in Google Earth Engine

I'm trying to generate a CSV table in Google Earth Engine to obtain daily data of Suspended Particulate Matter (SPM) concentration in different locations over a defined period. However, when I run my ...
Jhonnatan Rodriguez's user avatar
1 vote
0 answers
96 views

Usage of QgsVectorFileWriter.ActionOnExistingFile() in PyQGIS

I am currently trying to find a way to overwrite a CSV file saved in my QGIS project as a component in my larger project to save files. The end goal is that the CSV is 1) saved if the project has not ...
CaptainDang's user avatar

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