All Questions
36
questions
0
votes
1
answer
50
views
What is meaning of extra bytes in .shp file or how to calculate content length
I'm trying to read a .shp file. That .shp file contains polygon type. So I read all the records perfectly, after the reading the points, end of the file that have some 28 bytes are there what is ...
1
vote
1
answer
58
views
QGIS - Export layer with one polygon subdivided as multiple rows to CSV
I have a GeoJSON file with quite precise boundaries of world's countries. I had to simplify it because Snowflake, where I want to keep the data, has 16MB limit and Canadian polygon is always too large....
- 291
-1
votes
1
answer
121
views
Importing CSV file as polygons in QGIS [closed]
I downloaded a CSV file for a city nearby. The file has columns "SHAPE_Leng", "SHAPE_Area", "lat", and "lon". I assume with represents a polygon. What are the ...
0
votes
0
answers
22
views
Create a shapefile that consists of square from a point CSV file that contains X,Y values using Python GeoPandas module [duplicate]
Length of side of square should be 5 meter. Square has four points, therefore, to generate four points. However, polygon requires the last point to be the same as the starting point. So I need an ...
- 1
0
votes
0
answers
53
views
There's any way to export data from Access to polygons without having UniqueIDs?
I have polygons. I would need to have more information on them. I have that information in an Access database. But I don't have any identifier to serve as a reference. When I do a CSV import, it doesn'...
- 13
1
vote
0
answers
392
views
QGIS. Combining points data on a map with attributes in polygons
I have a project where I'm trying to combine flood risk data to a list of postcode (/zipcode) data. The postcode data is a csv that contains each postcode's easting, northing, longitude, and latitude ...
- 11
6
votes
3
answers
610
views
Import unknown text polygon format to QGIS
I'm trying to visualize this park in the DRC.
Thinking it was a WKT polygon, I isolated one shape as a test and saved it as a CSV.
Here
{"attributes":{"OBJECTID":27,"NOM":...
- 91
0
votes
1
answer
220
views
CSV to shapefile
I converted a shapefile into a CSV in order to do some calculations with the data and add some columns to the attribute table. I cannot seem to find out how to convert it to a geolocalized file again?...
0
votes
0
answers
33
views
Counting number of events from CSV file that occurred in corresponding polygon feature class using ArcMap
I'm trying to figure out how to count the number of drought events per county over the last 70 years we've had in NC and am having some difficulty. I downloaded a CSV file from a NOAA website that ...
1
vote
1
answer
547
views
How to filter WFS on basis of values in a (csv) list in QGIS?
I have made a map in Qgis (3.20) and added a layer of OGC WFS polygon from an online service. This layer displays coloured surfaces where buildings are, for the whole country.
I also have a list of ...
- 13
-2
votes
1
answer
2k
views
Creating shapefile from CSV file with geometry in WKT [closed]
I would like to get some help creating a polygon shapefile using a CSV (geometry). I have copied the first few rows. I use ArcGIS and a little bit of QGIS. Step by step give will be very helpful, I ...
- 1
1
vote
2
answers
1k
views
Creating rectangles from CSV coordinates via Python console in QGIS
As of v3.10, there is an asPolygon method for qgis.core.QgsRectangle.
This runs:
QgsRectangle(1804512.8556, 5453390.58088, 1813512.8556, 5461390.58088).asPolygon()
However, no vector data (i.e. an ...
- 389
5
votes
1
answer
2k
views
Import CSV into polygon shapefile
I have commune level map in shapefile and CSV.
Originally, I have shapefile, exported it to CSV, then to STATA for data manipulation. Then I have exported it as CSV to import to QGIS as polygon.
I ...
- 173
10
votes
2
answers
4k
views
Import CSV as polygon in QGIS
I have a CSV file with the coordinates of the vertices of my polygons (in the picture they correspond to "left", "right", "top", "bottom"). Actually is a grid ...
- 446
1
vote
0
answers
124
views
Importing CSV (downloaded from Google Drive) with polygonal geometry data, into QGIS
I formerly used Google Fusion Tables but due to the product downturn I had to bulk-download a backup copy of my data. Right now I have them all saved in CSV format.
I have attribute columns in these ...
- 141