Questions tagged [latitude-longitude]

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

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38 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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18 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
112 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
48 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
42 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
51 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
115 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
84 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
64 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
52 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
96 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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40 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
89 views

Why do I get 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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42 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
82 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
87 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
50 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 ...
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1answer
65 views

Converting lat long strings to xy linestrings [closed]

In PostGIS, I have a dataset with road segments including a column with coordinates for the various segments. The coordinates are in a lat-long format and the data type of the column is character ...
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3answers
69 views

Error in Converting XY Coordinates to Lat-Long Using r proj4 Library

I am trying to write a script that will allow my colleagues to easily convert XY coordinates into lat and long. The idea here is to take a spreadsheet with only X and Y available and create a new ...
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0answers
38 views

Determining which latitude and longitude values fall within township/district/polygons

Is it possible to export the boundaries of one layer, as well as the latitude and longitude falling within each boundary, from a program/by programming? I seem to have gotten fairly close to a ...
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18 views

Clipping a raster by latitude and longitude extent in ArcMap

How do you clip a raster by latitude and longitude in ArcMap? I have a planetary DEM of Mars: The datum is D_Mars and the xy coordinate system is Equirectangular_Mars. I want to clip this raster ...
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27 views

Converting Degrees, Mintues, Seconds to X, Y to be plotted into ponts

I need to convert a longs list of Lat/Long (example: N42 30' 45" W122 38' 00") into X,Y data (42.5125, -122.633333) so I can plot it into point shapefile. Is there a a way to convert multiple records ...
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0answers
41 views

Why does QGIS save EPSG:4326 as long, lat? [duplicate]

Why does QGIS save EPSG:4326 with coordinates in the longitude, latitude format? Isn't the correct standardized format latitude, longitude?
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0answers
225 views

Converting vector in NED to ECEF? [closed]

I have a geodetic WGS84 position, lat, lon, alt, and direction cosines from the same point, uN, uE, uD. I'm brand new to geodetic/ecef conventions. How do I take a vector (say, a unit vector with ...
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0answers
28 views

How to get geographic data of any particular region of map in Geometry datatype format in SQL Server? [closed]

I am completely new to Geometry datatype format of a Microsoft SQL Server database. DataType is Geometry. If not wrong, geographic data contains latitude and longitude of each point of that map, ...
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38 views

SAD69 conversion into latitude and longitude

I have an electricity distribution database in which the coordinates used are in the SAD69 system. I'd like to convert this data to longitude and latitude, but I do not find formulas anywhere. Could ...
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39 views

Transform ellipse representation from major/minor (meters) to degrees

I am given an ellipse represented by a quadruple (major, minor, center, azimuth) where major,minor are the ellips's axis length in meters, the center is the WGS84 coordinates of the ellipse's center ...
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1answer
142 views

List of lat-long, need values in a raster

Apologies in advance as I am not a GIS specialist by any means. I have a set of 1 million points and I'm trying to find their values in a geotiff raster. I've tried various versions of this answer ...
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1answer
56 views

Get weird result when calculating distance between two points, using latitude longitude?

I use algorithm (see: calculating distance between two points) to calculate distance between two points. but it get wrong result, see Java code: /** * group1:set latitude to 89 */ // set ...
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19 views

Computing center and zoom level for a set of points

I need to duplicate google's static map image API api on an internal server with no internet access using OpenStreetMaps. I did find the OSM Wiki Page covering this topic. I initially looked at OSM ...
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1answer
146 views

Difference between SnakeGrid and latitude and longitude

I am not a geography subject expert and maybe my this comparison make no sense as i don't have enough knowledge (one of the reason to ask this question here). I have a project where I am doing ...
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1answer
347 views

Latitude and longitude values in Google Takeout location history data sometimes out of range

I've exported my geolocation history data as a JSON from Google Takeout and the latitude/longitude values are out of normal range sometimes. It seems to happen for some locations only, while others ...
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14 views

Displaying Google Maps by Longitude Latitude Box

I want to display a certain area in google maps bounded by certain longitude/latitude. Meaning that I have 2 points (e.g. bottom left, top right) and this defines the area of the map. I found parts ...
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1answer
257 views

Why is QGIS not recognising latitude and longitude correctly?

I am importing a simple 5 column csv file into QGIS using Add Delimited Text Layer. Each row of the table contains a name, a street address, a postcode, a decimal latitude and a decimal longitude, for ...
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2answers
43 views

Get DD Lat and Lon from CRS EPSG:3111 - GDA94

I have a shapefile in CRS EPSG:3111 - GDA94 that I am trying to generate Lat and Lon, however when I use the field calculator and try to populate the lat lon I am getting values that I can't use as ...
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3answers
88 views

How to read points value hovering mouse pointer on the points in QGIS?

I am new to QGIS and learning daily, and I find it very interesting day by day. I have come up with a problem here. I stacked points on a sentinel2 image. The points data I imported from a CSV file; ...
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1answer
30 views

How to stack points based on their latitude and longitude value on a raster image in QGIS

I have a Sentinel2 image. I have a CSV file that contains latitude, longitude and precipitation data over the location where the sentinel2 image was taken. Now I want to stack the precipitation data ...
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1answer
196 views

Python - Convert shapefile lat-long value from Degree minutes seconds to Degree decimal

I am processing shapefiles in python using standard library functions like Python “shapefile” library and GeoPandas. I have two shapefiles having the same projected co-ordinate system-> ...
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1answer
65 views

Converting Point Feature to Latitude/Longitude Coordinate and GPX?

I drew a point feature using the draw tool in ArcMap on a map in an area of interest. I am now interested in extracting the actual latitude/longitude of this point in geographic space so I can ...
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0answers
47 views

How to perform reverse geocoding to custom area on the map?

I know there are services that perform reverse geocoding, given a pair of lat-long and return an approximate address, city, etc. The problem I have is that given a lat-long, I want to return the ...
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1answer
204 views

Merging several .hgt files into one

I'm currently struggling on trying to combine several .hgt files with different software. I can get the 4 tiles into any kind of software but my issue is exporting the file back to .hgt file. I've ...
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1answer
39 views

QGIS coordinates lost creating polygons

New to QGIS, I'm facing the Problem that my lat, lon information has seemed to be lost creating polygons. I created layers importing csv files being gps points. From these points I used the function ...
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0answers
32 views

How to get the Lat/Lon coordinates if I am given a table of the MINxy and MAXxy, so that I can map it out in ArcMap?

Right now I have a table that looks a little like this: and I have the geographic coordinate system they were mapped in, but I need to display them as the polygons that they are in ArcMap.
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1answer
228 views

Extract longitude and latitude from object in shapefile

I'm new to GIS and (ESRI) shapefile. I would like to extract GPS-Coordinates or longitude and latitude from every object in a shapefile, mainly from polygons. Here is a picture with one of these ...
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0answers
68 views

Visualizing signal strength of mobile towers

I have a list of latitude and longitude along with signal strength obtained from mobile towers in a certain region. I have all the data in CSV format. In total, I have 4 CSV files. I have mapped the ...
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0answers
85 views

Problems with latitude/longitude grid in QGIS 2

I try to produce a thematic map in QGIS, like this one done in MapInfo: I want to do this in QGIS. I work in projection "Albers-Siberia" projection ( PROJ.4: +proj=aea +lat_1=52 +lat_2=64 +lat_0=0 +...
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2answers
51 views

Calculating haversine versus checking latitude and longitude digits after decimal point?

If I want to tell whether 2 points are close to each other, say at proximity of 50 meters, is it OK to compare both numbers up to a certain decimal point, for example the two points: 36.391155, -56....
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1answer
67 views

Converting SHP UTM to decimal lat/long

I am trying to compare a list of lat/long to a shapefile and see which points are in or out of the polygon. I have discovered my shapefile is seemingly giving points in a UTM format. Below are some of ...
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1answer
40 views

Error during MGRS conversion for large latitudes

I'm using Nasa's Worldwind java API to convert MGRS strings to lat/lon. However, when my latitude is greater than 85 degrees or less than -85 degrees I get an error. java.lang....
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1answer
214 views

Truncate coordinates (LonLat) to decimal precision

For example if coordinates are 17.12345678, -82.12345678, and I want to convert them to 3 decimal digits. Expected result: 17.123, -82.123 Is there any API in OpenLayers 2 to truncate coordinates (...