Questions tagged [latitude-longitude]

Angular geographic coordinates that specifying the north-south and east-west positions of locations.

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16 views

Is latitude valid as covariate for spatial interpolations?

I have information of minimum and maximum mean monthly temperatures Tmin and Tmax, respectively), from more than 300 weather gauges and now I require to create interpolated surfaces of temperatures ...
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22 views

Shapely “parallel_offset” with distance in meters from Lat/Lon coordinates

I need to find a LineString at a distance in meters from a line with coordinates in Lat/Lon. I am trying this approach based on what i found in this question https://stackoverflow.com/questions/...
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Writing Numpy array to Raster file using uneven lat lon values

I have 3 numpy arrays, one is lat, lon and values. I want to write it as a raster file. I know there is a very similar case answered here But the lat lon is not evenly spaced as the reference. rather ...
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50 views

X/Y Coordinates to Longitude/Latitude, package for .net core app [closed]

I have a task to convert some incoming geo data to Longitude/Latitude. The data elements in the json are identified as xCoordinate and yCoordinate. However, the data in my sample does not look like ...
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33 views

GeoServer with SQL Table having lat/long

I have a table in SQL Server with geometry column. I save geometry like : geometry::Point(@Lat, @Long, 4326)and this results the geometry for the given lat/long. Now when I publish this layer in ...
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1answer
36 views

Online map source to check the geographic coordinates

I am looking for a map source to check the location of the coordinates I was given in latitude/longitude degrees. The coordinates and their corresponding locations are about 20 meters off with respect ...
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32 views

'Add XY Data' and 'Make XY Event Layer' are plotting points at an inaccurate latitude

I have a .csv file with 10 wells and their respective longitude (X) and latitude (Y). Every time I try 'Add XY Data' or 'Make XY Event Layer', my wells are being plotted at some random place in the ...
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25 views

Buffer in meters instead of degrees in south america

I need to create some buffer in meters, but it not possible how I'm doing. I really don't know what is happening. My code: library(rgdal) minas_ti<- readOGR("minas_TI.shp") minas_ti<-...
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1answer
23 views

Using gdal_translate command parameters [closed]

Working from these instructions: https://gdal.org/programs/gdal_translate.html#cmdoption-gdal-translate-gcp I am trying to run the gdal_translate command, here is a sample of the command I run which ...
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78 views

Find most NW, NE, SW, & SE coordinates from a group of long/lats

I have a list of 900-1000 longitude/latitude coordinates. I know and can depend that these coordinates form a rough rectangle. Is there a formula to determine which coordinates are at the corners (NW, ...
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30 views

Unable to map points on a map drawn using shapefile

I am new to this area. I have a dataset with latitude longitude data of the city of London. I would like to draw the corresponding map of the city with this points superimposed onto it. I am using ...
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1answer
87 views

QGIS convert pixel location

Is it possible to convert a list of pixel locations (txt file) into lat long? What I have is: (left_x: 137 top_y: 146) (left_x: 175 top_y: 236) (left_x: 182 top_y: 153) (left_x: 185 ...
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How to find the coordinates (longitude, latitude) of a point in an aerial image? [closed]

I will be receiving drone images from an associate. It'll have longitudes/latitudes values from the corners of the image. I don't have access to his image processing S/W. It'll be in a relatively ...
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1answer
41 views

Determining Longitude and Latitude of each corner of image

With this information below, including image size, longitude/latitude (of upper left I assume, maybe center), Resolution, and altitude - can I derive the Long/Lat of each corner of the image? "size":[...
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82 views

Converting WGS to latitude and longitude in QGIS? [duplicate]

How do you convert the WGS coordinate to latitude and longitude?
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1answer
79 views

Calculating distance (lat, lon) for geom point using PostGIS

I have point in my db (Postgres postgis): CREATE TABLE geometries (name varchar, geom geometry); With example data: INSERT INTO geometries VALUES ('Point', 'POINT(0 0)'); INSERT INTO geometries ...
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1answer
26 views

Using Google Earth to figure out the coordinate reference system from only lon, lat information

Lately, I've been trying to use lat/long information to plot on QGIS without any good results because I lack the correct EPSG code for the coordinate reference system. This is not the case with Google ...
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20 views

Finding boundary coordinates of user current location with a given radius

I have my current lat and lng details { "lat": 8.561032, "lng": 76.846333 } And from this I need to build a boundary around me with given radius. So How can I get the boundary ...
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71 views

ST_Latitude and ST_Longitude functions do not return exact values in MySQL [closed]

I tried to collaborate on this question from the Stack Overflow site. The ST_Latitude and ST_Longitude functions (equal ST_X and ST_Y) of MySQL (version 8.0.17) returns a non-exact value for certain ...
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1answer
69 views

Changing degrees to meters

I'm using QGIS 3.4.9. When I try to create a heatmap the only radius option is degrees. Can you tell me how to change this to meters?
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1answer
38 views

How can I count the number of countries my GPS data fall into?

I'm working with GPS data in R from different studies and would like to list the countries that each study covers. I can easily map the data using leaflet but I'm not sure how to extract the countries....
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2answers
54 views

Ignoring ellipsoidal heights recorded from GPS when only interested in location?

I am not interested in converting ellipsoidal height into AHD heights, because I have a good DEM. However, this whole business about geocentric vs geodesic coordinate systems is thoroughly confusing ...
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140 views

GeoPandas transform latitude/longitude coordinates to UTM coordinates

I have a shapefile which I read with GeoPandas, this shapefile has lat/long coordinates and I want to transform it to UTM coordinates. I tried this: shapefile = gpd.read_file('example.shp') #CRS = ...
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40 views

Mathematical rule to convert between degrees and centimeters based upon projection

I have some Tanzania drone imagery data in a local geographic projection EPSG:32737 that uses the unit of meters. Then I have other vector data that is in EPSG:4326 which is denominated in degrees. In ...
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1answer
72 views

Seeking ArcGIS Pro tool to get min and max latitude and longitude coordinates?

I am very new to ArcGIS Pro and have been struggling with getting the minimum and maximum latitude/longitude of an area in ArcGIS Pro. I am looking to get four coordinates of a rectangle that ...
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1answer
88 views

Longitude and latitude in aviation

I have two coordinates A = (60◦ N, 30◦ E) and B = (60◦ N, 150◦ E). I want to calculate the shortest possible route between these two points and also I want to know how far north does the route goes. ...
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1answer
41 views

Unable to convert coordinate format

I am trying to figure out the format of the coordinate pair below. My task is to convert a list of these integer values into decimal degrees (below), but this is my only ground truth data point. ...
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41 views

Auto populating attribute table with lat and lon in QGIS

is there a simple way (without writing script or Python skills) to auto calculate and auto populate lat and lon attributes in QGIS? When I manually add new points or move existing points in my layer,...
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2answers
298 views

Converting large data with lat and long into X and Y?

I have 9888562 records in dataframe and I would like to convert my lat, long to UTM x,y. according to my code, I have used pyproj package but because my data are too much it takes a long time and ...
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26 views

Do extra zeros change the coordinates for decimal degrees?

At my work we require contractors to submit work reports in decimal degrees with 6 decimal places, i.e. the location of where they paved roads or put in a road sign. The question is, contractors have ...
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2answers
90 views

Calculate new coordinate based on distance traveled between two other coordinates

We have two coordinates (latitude, longitude) and let's assume we want to travel along a straight line between them. After traveling a certain distance along this line, we would like to calculate a ...
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34 views

Converting latitude/longitude into a slab number (or item number) and vice versa?

Purpose: To compress the data transmission for the longitude and the latitude. Initially these datas are in the form DD.MM.mmmm: degrees, minutes, ten thousandths of a minute. Latitude stands under 28 ...
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63 views

Calculating direction for points (lon/lat) in a perfect circle (shape) north of equator?

I have perfect circles in lon/lat on a OpenLayers map. Near the Equator I locate each point on the circle using bearing-calculation for each point from circle-center. Meaning there are 360 bearings ...
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65 views

Move polygon to new location (find new lat-lng coordinates)

I need to move my polygon (region of geographical area) with 4 different (O1, O2, O3 and O4) lat-lng coordinates (as shown in the figure) to another place, so that I get new values of all 4 lat-lng ...
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178 views

NotImplementedError: Wrong number or type of arguments for overloaded function 'CoordinateTransformation_TransformPoint'

Hello I am new to working with GeoTiff data and I am trying to grab lat/lon values from a tiff image. Here is my code: import gdal import matplotlib.pyplot as plt import osr # open the dataset and ...
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2answers
129 views

Get latitude and longitude differences by clicking in two locations on the map

Is it possible in QGIS 3.x to click in two places on the map and to get back the X and Y distances between these two locations (latitude and longitude differences). I was hoping there is a plugin ...
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1answer
282 views

Get coordinates from EXIF

I wonder if it is possible to know if with the EXIF ​​data of a photo you can get the angle with respect to x or y (latitude or longitude) to position it on a map. Or given the EXIF ​​data to ...
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1answer
133 views

Creating 1 hectare Polygons given latitude longitude in Python

I'm trying to work with openweathermap's Agromonitoring API. To use their API you have to create polygons representing your area, then you can request weather data, soil moisture etc for that ...
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2answers
182 views

Converting GOES x,y coordinates from a 2D fixed grid into latitude and longitude

I am working with some GOES data in Python and I want to grab latitude/longitude coordinates from the data. GOES' stores their projection data in radians under x,y variables that are used to project ...
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2answers
415 views

Extract Latitude/Longitude from polygon vertices on QGIS

Created a global map by adding the OpenStreetMap and WorldMap layers in QGIS. Drew polygons over that, creating what I believe is a polygon layer. I've also created a layer of the Nodes/Vertices of ...
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1answer
242 views

Getting latitudes and longitudes in between start and end coordinates and spaced at equal distance

I have a csv file which has the latitude and longitudes values , I need to find the coordinates in between the start and the end latitude and longitude which must be equally spaced at the interval of ...
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1answer
243 views

Find in between coordinates for the given latitude and longitude from a CSV file

I have a CSV file which has the latitude and longitude values for the start and the end coordinates as follows. In these the first lon and lat values are the start point then the second coordinates ...
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1answer
91 views

Get Row/Column of Latitude/Longitude

I downloaded Sentinel-2 Imagery from AWS & I'm using rasterio to read/manipulate the data. I want to find the row/column coordinate of a latitude/longitude point that I initially used to search ...
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1answer
161 views

Meaning of abbreviation BLH?

I cannot find anywhere why BLH (where B is geographical latitude, L geographical longitude and H is elliposidal height) is called BLH. The origin of the letter H is clear, but what about B and L? ...
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0answers
41 views

Calculating latitude and longitude fields using PostGIS? [duplicate]

I have a shape in PostGIS that has 2,658,061 records (points). I need to create a field that is called "Latitude" and another that is called "longitude" and calculate a position in WGS84 (SRID: 4326)...
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1answer
180 views

Getting different resolution between horizontal/vertical directions, from lon/lat to openlayers map?

I draw several points of Lon/Lat(EPSG:4326) on the OpenStreetMap v 4.6.5 (EPSG:3857). It seems like the distance between the points are closer in the Latitudinal direction then in the Longitudinal ...
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137 views

Shift a lat/lon coordinate based on a distance and direction?

I have a coordinate in (lat/lon). I want to find a new coordinate shifted from this point by 'x' meters in the direction given by a compass bearing (degrees). The distance offset I am hoping to ...
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2answers
212 views

pyproj EPSG:4326 converts degrees to radians

Case My input is a point given as x, y and an SRS name which specifies how to interpret the numbers. My goal is to convert these into lon, lat in degrees. I convert this by using this piece of code:...
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1answer
136 views

How can I extract lat/long from GDB file in FME?

I have a large GDB database of points of interest across the world. I can open this up in FME and the data viewer works great in showing me the content in a way that is easily consumable. Despite all ...
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1answer
51 views

Seeking API/software tool that will return US state senate and state house district number for given latitude/longitude?

I have a bunch of addresses that I need to find the corresponding State Senate and State House district for their latitude and longitude. It is possible to use shapefiles in QGIS to get this ...