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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DXF with incomplete Gauß Krüger Zone 4 Coordinates

I have a DXF file (dwg originaly). The Coordinates in said file are set in Gauß Krüger Zone 4 (wich was used in Bavaria, Germany around 20 Years ago. While loading the File in QGIS (3.28.15) the ...
227 views

Determining coordinates of point B and C given distance and coordinates from point A to point B and C in QGIS

I have vessel heading, angle and distance to the animal sighting (С) and distance to point B. I need the coordinates for both points C and B. How do I go about this for many marine mammal sightings in ...
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Trying to find zenith and azimuth angles to satellite

I am working with satellite data. Each scene is approximately 30km squared with 1024 * 1000 pixels. I have the zenith and azimuth angle for each of the four corners, plus the center. I have latitude ...
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Rotating a set of GPS coordinates around a point

I have little idea what GIS is, and I have no experience using it. However, this is a question I'm asking here because it seems like the best place for an answer. I have a land deed from 1971 ...
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Absence of Excel number script coordinates

I have written the following script code and it has given me the monthly data of the annual growth of wheat from 2000 to 2023 in the form of graphs and Excel. Then I have added the slope of the ...
137 views

Reducing decimal places of coordinates in vector data using QGIS

I have polygon vector data, some of the polygons are imported from another 3D program (Agisoft Metashape). The imported polygons have up to 12 decimal places in the displayed coordinates (attribute ...
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Python - How to spread out a set of coordinates so that they're not within 10 miles of each other?

I'm plotting a scatter map with plotly, and I have a lot of markers that are overlapping and very close to each other. This may be convoluted, but I'm trying to spread them apart by tweaking each ...
1 vote
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QGIS using Geometry Generator to connect multiple points within a layer separately

I have a CSV layer containing roughly 50,000 individual point vectors of vessel tracking data. The attribute columns are date/time, latitude, longitude, vessel ID and vessel name. Some vessels have ...
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How do I show the right grid projection on my EPSG:4289 map/print layout?

I am trying to show the coordinates of my map (print layout) via a grid. However, I can not get it to work. I have tried multiple things: changing CRS, changing interval units, trial and error with X/...
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Bounding box intersection when crossing date-line and meridian

First of all, I check for general intersections: public bool CheckOverlap(BoundingBox boundingBox) { if (this.UpperRight.Longitude < boundingBox.LowerLeft.Longitude) return ...
15 views

gdal ogr transform c++ swaps axis order x to y [duplicate]

This is example #include "gdal/gdal.h" #include "gdal/ogr_spatialref.h" #include <iostream> void TransformBounds(double xmin, double ymin, double xmax, double ymax, ...
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QGIS 3.28.11 add attribute table in Atlas

In QGIS 3.28, I created a project,it has 20 polygons in a .shp. Each polygon has a unique value with the header "code" in the attribute table. I extracted vertices and collect geometries and ...
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1 vote
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Getting all node coordinates of ways of one relation with Overpass

With overpass, I use CSV to create individual formatted output. All ways of a relation are determined. Here is the code: [out:csv("print1";false)]; ( relation(id:15596842); way(r); ) -> ....
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I have a bounding box coordinates that I use to download the satellite image from Bing. I have polygon coordinates inside the previous bounding box. Is it possible to get the corresponding polygon ...
1 vote
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Programmaticaly get coordinates of area symbol in OSM

OpenStreetMap sometimes encodes buildings as areas - as closed ways instead of nodes. But still at some point in the map a symbol or a housenumber is placed. I want to get the coordinates of this ...
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Is there a method to sequentially label a collection of geographical points that follow a route with a changing direction?

I have a collection of geographical points (xy coordinates) looking like this: Collectively they follow a route with a changing direction. I am wondering if there is a way to calculate the order of ...
154 views

Getting xmin, xmax, ymin, ymax from grid in QGIS

I need to obtain the xmin, xmax, ymin, and ymax coordinates of grid cells, to precisely export each grid cell of a raster map to MBtiles. This grid was created and modified using GlobalMapper software....
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Importing CSV in QGIS results in inverted Y coordinates

I recently did a surveying job using 2 Emlid Reach M2 receivers (a base and a rover). All points were taken using the NAD83 MTM 7 projection. When I try to import a CSV file in QGIS, the Y coordinates ...
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Coordinate format and conversion [closed]

I'm new to GIS and I have a question that I hope you'll be able to help me with. I have a set of coordinates I obtained from a paper, that look like this: S 00.67455, W 76.39837; N 00.18166, W 78....
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Convert XY to W3W

I have been told by our water company that our meter is at X Coordinate: 526585.0 Y Coordinate: 181591.0 I have tried to identify the location using various maps without success. How can I convert to ...
1 vote
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qgis label straight line

For a map, I would like to align the labels on a single line. I've changed the label co-ordinate settings to X = \$x and Y to a fixed value. The only problem is that I'm using LAMBERT coordinates and I ...
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Matching satellite, DEM and OSM images

I have a set of satellite GeoTIFF images (from https://xview2.org/) that I want to pair with DEM images from OpenTopography (https://portal.opentopography.org/raster?opentopoID=OTNED.012021.4269.3) ...
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Exporting temporary

I was wondering how I can export the temporary reprojected coordinates from a vector file. I am working in zone 50 and imported a file in zone 51. QGIS did a good job reprojecting this on the fly, ...
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Plotting a CSV file containing multiple co-ordinates of a route as points on QGIS

I have a CSV file with 3700 routes, with each route represented by a row and the respective co-ordinates of that route in the following format. Since the distance of each route varies, the no of lat-...
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Converting latitude and longitude to coordinates within an image

I'm creating a game which involves fetching data from an API which gives me the latitude and longitude of some entities. I have a picture of size 1280x720 (zoom 100km / 50 mi) (I converted the image ...
61 views

Overlay problem when importing a CSV file into QGIS

I'm having a problem with certain entities being superimposed when importing a delimited text file in .csv format into QGIS. It seems that some entities lose their coordinates and copy the coordinates ...
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How to use a colon as a DMS separator in the QGIS layout coordinate grid

I need to format the display of the coordinate grid in the QGIS layout with the following structure: +DD:MM:SS,SSS (for northern and eastern hemispheres) and -DD:MM:SS,SSS (for southern and western ...
184 views

Conversion coordinates to decimal degrees in Python

I have a pandas DataFrame with coordinates (Longitude and Latitude) in the following format: (005304000W, 384035000N). I need to convert those coordinates to what I believe are decimal degrees (e.g. -...
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Different coordinate extent of reclassfied slope in QGIS

I have a slope file generated from a reprojected file. Both files have the same coordinate extent. From the slope file, I reclassified the slope using the Raster Analysis: Reclassify by table. ...
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How to ascertain actual location of duplicately named UNLOCODE region when co-ordinates are not provided

As https://www.reddit.com/u/rokejulianlockhart/s/9Gp5N5Htva explains, I ask this to remediate a problem: Which of GBR's HAO or HWX refers to https://www.google.com/maps/place/Hanworth,+Norwich/@52....
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Making trivial GeoJSON file with Feature collection of points

I'm trying to generate a GeoJSON file with a feature collection of points to render in QGIS, however, when I load my .geojson file I don't see anything. To figure out what's going on, I've tried to ...
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Converting UN locations `coordinates` to lat and lng

I have coordinates from the UNLOCATION dataset, that look like this: 4230N 00131E. According to their site, this is how it should be processed: https://service.unece.org/trade/locode/Service/...
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Converting PDF Map Coordinates to Projected Coordinate

I am trying to georeference a number of PDF documents automatically. I am able to extract the vector data from the PDF - the data is a series of lines representing cadastral boundaries. I can load ...
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Drawing routes (on road shapefile) between X,Y coordinates in QGIS

I've got a column with 300 of start points and 300 of end points (X,Y coordinates for each point). I now want each row in the column to connect with each other (e.g. X,Y Coordinate for Start Point, ...
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1 vote
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Calculate geometry, coordinates precision in ArcGIS Pro

I'm using ArcGIS Pro and recently encountered an annoying issue using Calculate Geometry with coordinates. Let's say I create a point with DDM coordinates: 47 07.9000000E, 22 04,6000000N. If I check ...
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I am very much a QGIS beginner and want a vector layer of food deserts in England, but the only data I can find is in CSV format with no shapefile https://data.cdrc.ac.uk/dataset/e-food-desert-index. ...
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Inaccuracy using field calculator to get coordinates of a point layer

When using the \$x and \$y commands in the field calculator to get coordinates of features in a point layer, the coordinates I get are different than if I point the feature with my cursor. The deviation ...
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How can I export all the data from an image collection and add the coordinates as a band

I have a collection of data to which I apply several filters, when I try to export the coordinates of the remaining data after applying the filter, ALL THE COORDINATES appear, I only need the ...
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Compute the length of a line of latitude between two longitudes assuming a spherical Earth

I am trying to compute the length between two longitude lines along a latitude line on a sphere. I can find the great circle distance (haversine formula), and the straight line distance (cosine), but ...
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1 vote
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QGIS atlas layout coordinate grid display outside of map box

on QGIS I would like to know if there is a way to set the grid coordinate display so that it would not overlap the map box or other coordinates like in this example :
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How to know when Google Maps has updated their co-ordinates

I am building a Tableau dashboard where the user can click on a geocode and it redirects them to Google Maps and shows them the location. But there is an issue here because it takes them to a ...
324 views

Automatically add latitude and longitude field upon creating a point feature in QGIS

I need to create two fields in the attribute table that automatically takes the latitude and longitude of the point features that i digitize, without running any other command or update. When i create ...
1 vote
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What is the right projection to use? [closed]

I am working on an application which uses lat and lon coordinates. The coordinates I'm working with can be found all over the globe. For some reason I have to do some operations in meters, buffering ...
1 vote
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Coordinate system conversion format

I'm a beginner in the use of QGIS and I have a problem with a coordinate conversion for creating a map in QGIS. I have some coordinates that have been collected with GPS in the field in this way: ...
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Drawing a polygon from UTM coordinates without using a computer

all. I'm having trouble remembering how I used to do something, and I can't find any answers so far online. Years ago, I would take various points of, say, a field using a handheld GPS. I would then ...
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Old drill logs with unknown coordinate system [duplicate]

I have old drill logs with holes easting and northing coordinates. Any way to figure out which reference system was used? I know general area where they are located but no clue which CRS was used for ...
1 vote
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What is the proper syntax in gdal_translate to change image.png to a geotiff by assigning latlong pairs to pixels?

I cannot find comprehesible documentation on how to assign latlon to pixels in an orthogonal image that must be made into a proper geotiff. INPUT kat.png (ORDINARY) OUTPUT kat.tif (GEOTIFF) 512px by ...
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What is this coordinate system from my engineering document?

I have an engineering document from 1991 with coordinates for a region in San Diego, CA. I can't figure which coordinate system is being used here. I would expect "NAD83 StatePlane VI ft" (...