Questions tagged [latitude-longitude]
Angular geographic coordinates that specifying the north-south and east-west positions of locations.
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36 views
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24 views
Google Map - saving latitude and longitude of route/path to my server to show in future the selected route/path and navigate accordingly [closed]
I am planning a software/mobile application where the tasks are like below.
An interface where a admin person will create a route map customisation by dragging a polygon path and also may add google ...
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0answers
23 views
Finding distances associated with change in latitude and longitude at given location [duplicate]
I am writing a program that uses GPS lat and long coordinates and a time change to determine speed with the output in units of m/s (precise to 0.1 m if feasible, but 1 m is sufficient). When ...
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2answers
54 views
Python, create a polygon from range of three lat/lon points
I have three lat/lon points, I need to use those in order to create a range of all possible points within the polygon that the first three create.
Test every lat/lon if it matches a condition I have ...
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0answers
26 views
Convert lat/lng to pixel in UTM image files [closed]
This is my first post on this site so please be gentle :)
I have a number of large image files that map locations around the world. These image files are in UTM projection and I am looking to write a ...
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41 views
Measure GPS distance between two points without using almost any math? (accuracy not required)
I'm programming an application where I save GPS location (lat and long) into each user info. I need to search the nearest users, I can only search using a between() function provided by my database, ...
3
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1answer
76 views
Python: finding angle between 3 points while considering elevation
I have a pandas DataFrame that contains three points's lat/lon and elevation.
I used the Vincenty's formula to calculate the distance between each pair.
And now I want to calculate the angle of the ...
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0answers
22 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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36 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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26 views
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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1answer
71 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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41 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
43 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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0answers
26 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
32 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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1answer
139 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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31 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 ...
3
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1answer
93 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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0answers
33 views
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 ...
2
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1answer
44 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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1answer
86 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
96 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
27 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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26 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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0answers
93 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 ...
3
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1answer
81 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?
2
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1answer
39 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
55 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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0answers
191 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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0answers
49 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
104 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 ...
2
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1answer
96 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. ...
2
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0answers
43 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,...
2
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2answers
430 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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0answers
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
134 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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0answers
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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0answers
67 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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0answers
97 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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0answers
254 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 ...
2
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2answers
132 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 ...
2
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1answer
579 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 ...
3
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1answer
207 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 ...
2
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2answers
252 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
517 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
316 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 ...
1
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1answer
321 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 ...
1
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1answer
100 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 ...
