Questions tagged [coordinates]

Any of a set of two or more numbers used to determine the position of a point, line, curve, or plane in a space of a given dimension with respect to a system of lines or other fixed references.

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Display geographic coordinates in a projected OpenLayers map

I'm using OpenLayers 6 to create a projected map in EPSG:25830. I've included the following code to display the coordinates in the map and it works ok controls: ol.control.defaults().extend ([ ...
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How to make polygon shapefile from .csv file with ShapeSTArea and ShapeSTLength features?

I have a .csv file that includes x and y coordinates as well as ShapeSTArea and ShapeSTLength features. (see below) I'm hoping to turn this .csv file into a shapefile that instead of displaying ...
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Add coordinate points to QGIS [closed]

I have a shapefile and a .csv table with coordinates. I imported it to QGIS as a Delimited Text Layer but found many of my points are outside my area of interest. I also need to color code the points ...
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Transforming using ntv2 nadgrids is behaving different between GDAL 2.3.1 and GDAL 3.4.2

I am working on upgrading to a newer version of GDAL and have an issue transforming coordinates using nadgrids (the beta2007.gsb ntv2 file which can be downloaded here) using GDAL 3.4.2. The issue is ...
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Problems with uploading point coordinate British National Grid data into QGIS as .csv file

I'm very much hoping someone can help me with this, please. I have uploaded raster data from Digimap to use for maps for field sites for my research in the UK. The issue is that this map data use ...
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2 answers
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Getting habitat map data into CSV file in QGIS

I am fairly new to QGIS and I am doing a masters degree. I have a number of GPS coordinates which represent the location of elephant sightings. I need to find out what habitat type each of these ...
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Polygon Vertices Pixel are not integers

In a GeoJSON dataset there is the column 'polygon_vertices_pixels'. It says it contains the pixel coordinates of the vertices of the polygon on the matching image. But these values are not integers. ...
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Convert coordinates in ArcGIS

I am trying to convert the coordinates given below. These coordinates have been provided to me with the given information: 'All co-ordinates are in Metres, Based upon International Spheroid, European ...
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1 answer
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Leaflet geoJSON tooltip coordinates

How can I manually set the coordinates for a tooltip in Leaflet with geoJSON? This is how I'm adding it to the map: layer.bindTooltip(country_name, { permanent: true, opacity: 1, direction:...
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How to cut polygons in ArcMap using manually entered coordinates?

I would like to cut polygons with a line determined by coordinates. I have the coordinates in a separate pdf file (for reasons beyond my control) and I would like to manually enter them during the ...
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6 votes
1 answer
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Generating x, y, coordinates within polygon/polyline with certain interval in QGIS

I need all the x- and y-coordinates with a interval of 500 meters that fit inside a polygon/polyline. For example I want to generate a CSV file that looks like this: x, y, 10000, 30000 10500, 30000 ...
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Rounding decimal numbers in PostGIS [duplicate]

I have a 'cities' point layer. I want to compute a table with the coordinates of the geometries which works fine with that expression: select name, ST_X(geom) as x_coordinate, ST_Y(geom) ...
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QGIS - Link derived coordinates to an attribute table

How can I link a field of derived coordinates and attributes to an attribute table? It cannot be copied manually, many lines (100,000).
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2 votes
1 answer
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Formatting decimal point for X,Y coordinates using R

I am relatively new to R and GIS in general, but I am working with this dataset https://data.austintexas.gov/Public-Safety/AFD-Fire-Incidents-2016-January-Thru-December/5tib-gqfx Whoever created it, ...
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Get coordinates on click without using QgsMapToolEmitPoint

I have a code that reacts to a mouse click. I click on the label of an object and get the ID of this object. Everything works perfectly. But I need to do all the same when some other tool is active (&...
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2 votes
1 answer
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Importing text file with coordinates with "N12.345" and "E6.789" as shapefile in QGIS

In our project we have an app that provides data of coordinates with "N" and "E" for Lat and Lon correspondingly. We get the data as Excel and want to open it as shape in QGIS. We ...
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2 votes
1 answer
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Given table of coordinates, obtain attribute from GeoTIFF file for given location

I am completely new to GIS, am currently using QGIS to try and accomplish a major feat. Background: I have a file of over 150,000 property lat/long coordinates that exist in WA & OR (USA). I have ...
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1 answer
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Exporting dxf from Revit to QGIS, loss of coordinates

I'm trying to combine Revit and QGIS. It's mostly about exporting Revit files as DXF and opening them in QGIS. Every file, no matter how I try to work with the projection in Revit (survey point and ...
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Points in lines extraction of coordinates automate

I'm currently working on a project with ArcMap. I'm having a problem on how to extract the x,y info of all the points in a line, meter by meter. This is the problem & objective: So I have 1 line, ...
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1 vote
1 answer
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Coordinate Capture plugin missing

I always had the Coordinate Capture plugin working well, but now it disappeared. I followed the instructions method and others but with no success to get it back to life. I don't have the Coordinate ...
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2 votes
1 answer
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Get lan&lon and values from GeoTIFF using Python

I have GeoTIFF images from https://esa-worldcover.org/en My goal is to get a list of latitude / longitude / value from that image. The value is a numeric attribute which represents a class as ...
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Transforming multiple sets of coordinates in attribute table by name of field using PyQGIS

I have a script that takes a set of points and computes the distance to nearby geographic points taken from OSM data. The output layer is the point layer with new fields showing the distance to, name ...
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How to animate view to custom coordinates in OpenLayers 5?

Given just a basic ol.Map using OpenLayers 5 var map = new ol.Map({ layers: [ new ol.layer.Tile({ source: new ol.source.OSM() }) ] target: 'map' view: new ...
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Extract absolute coordinates from reference system

How can i set a local reference system to get relative points coordinates from absolute coordinates? example : point 1 : X = 0 Y = 0 point 2 : X = 100 Y = 0 point 3 : X = 100 Y = 100 point 4 : X= 0 ...
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3 votes
2 answers
126 views

How do I translate MapBox GL JS GPS coordinates into SWEREF 99 TM ones?

I have to deal with this: https://minkarta.lantmateriet.se/?e=493056&n=6795776&z=3&profile=karta&background=1&boundaries=false This is a URL which uses "e" and "n&...
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1 answer
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How can I know the type of ground from given coordinates using Python

I would like to know what type of soil (ground) is a given coordinate (lat&lon). For instance, if a coordinate is rural soil, a road, a building, etc. Is it possible? I've tried: import requests ...
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Add UTM and decimal degree fields to a point file

I have a point layer with CRS = EPSG:3978-NAD83/Canada Atlas Lambert and projection Canada Lambert Conformal Conic. I used the field calculator and $x, $y to add "coordinates" which I take ...
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Exporting to text file the coordinates and value for section of map [closed]

I'm a novice with GIS. I want to export to a text (.csv) file the coordinates (lat, lon) and data values for a rectangular section of the data domain as shown on the map. I have loaded a .img file of ...
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1 answer
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Merging lines of one feature class from pair coordinates with ArcPy

cursor=arcpy.da.searchCursor("mettaled", "SHAPE@") for row in cursor: geom=row[0] for part in geom: for pnt in part: x,y=pnt.X, pnt.Y print x,y I ...
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How to convert a series of Google Maps links into decimal coordinates

I have a series of links of the following types: https://goo.gl/maps/{17 characters) https://maps.app.goo.gl/{17 characters) Is there a way to batch-convert them to decimal coordinates?
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QGIS coordinates on Emlid RS+ ReachView3

I am in the UK (Surrey) using Emlid RS+ and ReachView3 to create points for QGIS but cannot get the coordinates to work. Can anyone advise which coordinate system to use on Reachview3 and QGIS?
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1 vote
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A faster way to extract geometry xy of geodataframe

I need a faster way to extract geometry xy of a large dataset which is in a geodataframe format. I have developed a lambda function as below to do that but I need a faster way. The following is a ...
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3 votes
1 answer
87 views

Obtaining lat/lon coordinates for layer in QGIS

With QGIS 3.24.1-Tisler on Mac, I want to get a list of lat/long coordinates for the Alaska sample data that comes with QGIS. I followed the instructions at https://gis.stackexchange.com/a/64700, with ...
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5 votes
2 answers
197 views

Getting one point with coordinates for polygon in QGIS

I drew a polygon and after that, I extracted the vertices to eventually get the coordinates of the area. As shown in the screen capture I've got my y/latitude and x/longitude but I would like to get ...
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2 votes
4 answers
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Converting OGR geometry as WKT of polygon from float to integer in the WKT string

(This is a repost into this community of my original question posted on SO, because there has been no answer so far. Hopefully in this community more luck. I'll ask for the other one to be closed.) I ...
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2 votes
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Calculating coordinates of two GPS points whose line through them is perpendicular to two other GPS points

Given two GPS points A and B, I would like to compute the GPS coordinates A1 and A2. [A1A2] forms a segment perpendicular to segment [AB]. For this, I start to compute M1, which is the midpoint ...
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2 votes
1 answer
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QGIS: importing dataset based on zipcodes, not coordinates

for a current project I want to connect nation-wide PV-modules (photovoltaic modules) to power grid nodes via zip codes and their respective power demands. For this reason, I downloaded QGIS as I was ...
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1 answer
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How to add spatial reference information in distance calculation? [closed]

Software: ArcGIS Pro I have a long polyline with multiple vertices. I want shape length of only a portion of this polyline. For that I have extracted the coordinates of all vertices of this long ...
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0 answers
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Confusing GPS coordinates [duplicate]

I'm reposting this question for the sake of clarity. I've been given a spreadsheet with coordinates that are in a variety of formats, all to be converted to DD for standardisation. I'm confused about ...
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0 votes
2 answers
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6 digit UTM to DD [closed]

I've done some searching online but I can't find an answer to my question, hence posting here. I have a spreadsheet of UTM coordinates (I think they're UTM) and I need to convert them into DD. All I ...
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Calculating point intersection from Azimuth and UTM coordinates

I have a control board point(CB) that I need to calculate the position of. I took the azimuth and the elevation of that point relative of two other known points(of which are known Easting, Northing ...
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1 vote
1 answer
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Error using geom_join to join nearest coordinate data

I am currently trying to join weather data from NOAA dataset that I have acquired to a county census data set. This is necessary because the NOAA data is given by Weather station and not by town, ...
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2 votes
2 answers
152 views

Adding points with coordinates from CSV in QGIS

I want to add to my vector file layers with some points to show animals occurrences in Germany for different years. I have all the coordinates in a CSV file (see image attached) but when I want to ...
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QGIS converting my coordinates erroneously

I have a set of data in CSV format where the first, second and third columns are Point #,Coord of X and Coord of Y respectively (in UTM Zone 51N). Then I added a delimited text layer in QGIS 3.16.5 ...
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1 answer
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Euclidean Coordinates to Lat Long Based on Reference Location in Python

Goal Convert Euclidean Coordinates to Latitude and Longitude given the Latitude and Longitude of euclidean origin using Python. To give a sense of scale and accuracy for my application, the ...
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2 votes
1 answer
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Why $x and $y gives some results NULL and other correct values for one point layer? (on one only table of attributes)

I created a point layer starting on lines (with revised geometries) and then tried to obtained the coordinates of several point layers created from the same procedure and also joined all the point ...
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1 vote
1 answer
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Why is this shapefile not showing in the correct spot?

I have this shapefile (https://1drv.ms/u/s!AqMcxdEHKstsmgi1C7FO_81px_mg?e=09f6Ze), and this is the content of .prj file: GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["...
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Calculate a centered Midpoint from a set of Lat and Longs in a given region

I am writing an Android app that will display placemarkers in regions you have visited over the world. In order to find where to place these placemarkers I am querying a Gadm36 (world) database for ...
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1 answer
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Displaying raster data information in specific coordinates

I am currently trying to figure out how to retrieve the information in a specific point in QGIS. I opened a netcdf file containing information about chlorophy-a concentration in the Mediterranean Sea. ...
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1 vote
1 answer
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Extracting X Y coordinates in projected SR

I'm trying to extract X and Y coordinates of a set of points using QGIS 3.20. I am using the "add attributes to geometry tool". Points are in WGS84/33N EPSG:32633 which has Projected bounds:...
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