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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9 views

Google Earth Engine, export TFRecord

I am Trying to recreate this working python function in Javascript: task = ee.batch.Export.image.toCloudStorage( image = image, description = 'test', bucket = BUCKET, fileNamePrefix ...
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Seeking bulk geocoding service for Brazil that allows permanent lat/long data storage

I have to geocode a huge dataset, with about 35 million addresses from Brazil. I was not able to find a good solution, even considering paid geocoders. So, I'd like to know if there is any geocoder ...
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Shortest path (point to point) when filling out coordinates in boxes

I am using the processing toolbox interface to launch the "Shortest path (point to point)" command to connect two points using a line network layer (see attached photo). If I fill out the ...
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Lat/Long data to shapefile with many values in CSV dataset

I have my polygon spatial data in a format of CSV with the column of lat/long delimited by comma. Is there any way to upload this csv and got polygon shapefiles (or any other visualisable format)? My ...
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Changing Excel point coordinates in different coordinate system to points in ArcGIS Desktop

I have coordinates in a format e.g. 22°42'39.065”E, 49°4'59.864”N. I tried to add the points using "XY Table to Point" but when I add my Excel file as input, it doesn't recognize the fields ...
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32 views

Joining X and Y coordinates form CSV with shapefile [closed]

I am working in QGIS. I have a shapefile showing regions of Sweden. In a .csv-file I have X and Y coordinates which I want to link to the shapefile spatially. How can I do it?
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Convert XYZ coordinates from EPSG:2231 to EPSG:3857 (WGS 84 Pseudo Mercator)

I have some ground control points (GCPs) collected using coordinate system EPSG: 2231 (Colorado North USft). I have the data as a CSV. I want to convert the X,Y,and Z coordinates to WGS84 Psuedo ...
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51 views

How to calculate object real life location from self driving car?

I have a video made from a car together with GPS information (location coordinates, altitude, speed, track to true North degrees and other. Also I have a 3gf file of g-sensor but I’m not able to parse ...
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Add X/Y coordinate format incompatible with viewshed tool coordinate format in QGIS

I am performing an r.viewshed analysis (id: grass7:r.viewshed) in QGIS 3.10.9 with Grass 7.8.3. My question pertains to the 'coordinates' parameter. When I use the r.viewshed tool in QGIS and select a ...
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Calculating point GPS location in picture

I have camera location (GPS coordinates) and need to calculate some points (pixels, actually it’s some detected objects points) location (GPS coordinates) that are seen from the camera. I found in the ...
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Atlas - Adding point coordinate icon

I have created an atlas for all countries in the world, and I would like to drop a pin to show the centre of the country (as attached). Is there a way to add these coordinates automatically such as in ...
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How to calculate coordinate of a selected points in QGIS?

How to calculate coordinate of a selected points in QGIS? Not just x, y, I need like this: X = 77° 1' 5.032" E Y = 28° 38' 58.034" N. Refer the attached image the (x,y,z) columns coordinate ...
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Identify the coordinates of the max values resulting from using the Zonal Statistics tool

I used the Zonal Statistics tool to extract the max values of a raster/DEM layer. The attribute table shows the result, but the problem now is to identify the coordinates of the said maximum elevation....
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lat, lng to lng, lat in polygon WKT - axis flip

I have a sheet with the column with polygon information in WKT format. However, the data taken are from web mapping (OSM or google maps) and in the order of lat, lng. When I am using the solution from ...
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What are “degrees” in SRID 4326 and why can't they use meters? [closed]

I want to return all the houses for sale within 500 meters from my own house. I have this query: SELECT * FROM houses_for_sale WHERE postgis.ST_DWithin(coordinates, $1, 500); It returns houses ...
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Coordinate Bar Units in BC Albers (EPSG:3005) - QGIS 3.10

I am having some confusion with the coordinates bar in QGIS (3.10). Please correct me if I am wrong. If using BC Albers (EPSG:3005) coordinate reference system (units are meters), the two values in ...
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How do I obtain the coordinates of the points that define the polygons' shape in ArcMap (not the centroid)?

I'm starting at ArcMap. I want to export the coordinates of the points that form the line that defines the shape of each polygon. I can add a new field to the attribute table, but when I calculate the ...
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Populate existing coordinate fields in AGOL Web Map using Arcade conditional expression

My employer has their own server which hosts some surveying data for roadway repair work. I set up the initial feature layers through ArcGIS Desktop and used the Add XY Coordinates tool to create ...
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QGIS 3x capturing coordinates for multitude of objects at once

I would like to ask about the possibility of capturing coordinates for more than 1 object in QGIS. I used to use the coordinate capture plugin, but what is the problem there I have to collect ...
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Rescaling the coordinates of shapefile

I have a few shapefiles that I am analyzing in QGIS. They are in the WGS 84 coordinate reference system, which is what I want, however, the coordinates are in the seven digit range (they are all ...
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1answer
47 views

Combining Google Maps coordinates with an existing shapefile

I would like to add GPS coordinates from Google Maps (see image below) as point data in QGIS and combine it with an existing shapefile [dvg1_EPSG25832_Shape.zip] https://www.opengeodata.nrw.de/...
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Using QGIS Rotate Point Symbols tool when multiple point objects have same coordinates

I'm using SVG symbols to display a layer which represents the location of traffic accidents. The rotation of the symbol indicates the direction the vehicle was travelling. The rotation angle is ...
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1answer
43 views

Math formula to calculate GPS location for weighted GPS data points

I'm working to improve the location and accuracy of a map / data-point driven application. I have a collection of locations of interest. Each location of interest has a collection of data points that ...
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2answers
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Check if coordinates intersect rotated rectangle

In a non-GIS system, I have a Python script that checks to see if coordinates are valid: def is_latlong_valid(laty, longx): #Verify if the numbers are legitimate UTM coordinates return (...
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120 views

Standalone program for converting coordinates in shapefiles

Does anyone know of a standalone program that will convert the coordinates in a shapefile to another coordinate system? By this I mean a program outside of a full GIS package. I have customers who ...
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Adjusting same CRS to overlay raster satellite image with vector data

I need to overlay my raster image of chollian satellite with shape file of South Korea. It worked in MODIS images but it does not work in chollian satellite images. Could you let me know how to solve ...
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46 views

Lines Between Coordinate Points

Currently, I'm mapping data from the Hudson's Bay Company Archives in the nineteenth century, and I am tracing the routes travelled by fur traders. I have gone through the documents, recorded the ...
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156 views

What is the order of parameters in +towgs84?

What is the order of parameters in +towgs84 attribute within a proj string. I assume it is dx,dy,dz,rx,ry,rz,sf dx,dy,dz are expressed in meters rx,ry,rz are these in degrees/radians/arc seconds? sf ...
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How do I find lat/lon coordinates for the corners of a PLSS section?

The specific section is defined by State: Nevada Meridian: Mount Diablo Township: 14S Range: 66E Section 18 If possible, I'd prefer coordinates in Degrees, Minutes, and Seconds
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1answer
54 views

Pyproj giving negative UTM northing

I have a location off of the coast of Madagascar with longitude and latitude: X = 43.28191425 Y = -22.49701687 This point also has a Z value (height). I want to convert the lat,lon to UTM co-ords ...
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31 views

Exporting grid vector from QGIS to KML gives wrong coordinates

A grid vector was created over the map layer (EPSG:32636) and saved as with CSR EPSG:32636. Then when I export it as KML, it the grid appears in a different country (Congo rather than Lebanon). I ...
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ArcGIS Online - Display TMS with inverted Y

In ArcGIS Online, I'm trying to display a Tile Layer (Add > Add Layer from Web > A Tile Layer) that has the Y (row) axis inverted. I tried placing a minus (-) but it didn't worked, the layer ...
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53 views

How to batch convert state plane coordinates to lat long with multiple SPC Zones?

I'm somewhat of a GIS novice and am trying to see if this is possible to save me some time with further investigating. I have about 300 records in a CSV file with the fields SPC Zone, ECOORD, NCOORD, ...
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1answer
53 views

Need a simple python program to convert EPSG/SRID 102002 (LCC) to WGS84

I'm going to convert some coordinates from Canada LCC (EPSG/SRID 102002) into WGS84 (EPSG/SRID 4326). I found a python package for this purpose which is pyproj. However, seems it doesn't support ...
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23 views

How can I create a Voronoi diagram on gmplot?

So I have some coordinates that I'm plotting on GoogleMapPlotter. Now I've been trying to create a Voronoi diagram for some of my coordinates but I haven't been able to find a library that supports ...
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1answer
44 views

Why do I get coordinates in QGIS3 as nnnnnn; nnnnnn instead of Lat/Lon when I upload a shapefile supposedly projected in WGS84 [duplicate]

I received a couple of shapefiles made in France supposed to be projected in WGS84. When I upload them to QGIS3, it recognizes them as WGS84. However, their coordinates are displayed in a strange ...
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1answer
66 views

Set the geographic coordinates of a raster map on QGIS using two points

I am making a map from a raster that obviously has not geographic coordinates. I plan to eventually put my digital map on a world map like OpenStreepMap with the correct scale and positions. I ...
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GPS glitch causes 200 m circles around stationary position- Has anyone seen this before?

I am working with GPS data from public transport buses in a city in the UK. The data have very characteristic circles of approx. 200 m diameter at bus stops. I suspect that these are caused by an ...
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1answer
45 views

Converting to geodetic latitude, longitude

I’m writing a program to determine a vector between two points on earth by taking the difference of the ECEF vectors for each point. I’m using this algorithm: https://www.mathworks.com/help/aeroblks/...
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How to store lat lng to a file Leaflet? [closed]

<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <link rel="stylesheet" href="...
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195 views

Getting lat/long for centroids using QGIS

I have a series of polygons (lakes) in Kansas, Oklahoma and a few in Texas. I created centroids of each lake, which I need for distance measurements. These centroids have derived lat/long information ...
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19 views

Display InSAR calculation results on satellite images

I have used PSInSAR technology to process and got the result of ground subsidence velocity. I saw in [a paper]1 that the results of ground subsidence velocity (a layer) can be displayed on satellite ...
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1answer
31 views

About distance between two coordinates streets?

Let's suppose there are two places coordinates (street places). I know that straight direction between them I can calculate by formula. Also we know that route between those coordinates can be ...
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Selecting by coordinates in ArcGIS Pro

Using ArcGIS Pro 2.5.0 I've established a grid of points from a raster using the 'Raster to Point' tool and added the X and Y coordinates with 'Add Geometry Attributes'. I now need to select a subset ...
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Defining the coordinates for a Raster?

To clarify, I'm not trying to define the coordinate system for a raster; I know how to do that already. However, what I'm having trouble with is actually getting the raster image to be the right ...
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Change of latitude and longitude when rotating around an Euler pole

Suppose we have a point P on the surface of the Earth characterized by its latitude and longitude. There is an Euler pole given together with an angle of rotation around the axis associated with this ...
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3answers
311 views

Error transforming geometry into lat-long coordinates

I'm trying to transform some geometries from the postgis database into lat long coordinates: This is the query: SELECT st_x (geometry) as lng, st_y (geometry) as lat FROM final and this is the error ...
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2answers
51 views

Identify the min and max x-y coordinates of an ee.Geometry (Earth Engine)

I am using the EE API in a Python Jupyter Notebook. I am building a map based on the LSIB_SIMPLE country boundaries. My objective is to display my information in a map and adapt the zoom to fit the ...
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27 views

Creating Thiessen polygons using ArcMap

When creating the Thiessen polygon for a X,Y co-ordinates. It is showing like this. When I set the extent manually I'm not getting the polygon properly.
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1answer
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Trouble importing coordinates

I'm having trouble importing coordinates. I have a map over Scandinavia, and I need to import sampling coordinates that I've downloaded. The CRS I'm using is SWEREF99 TM EPSG:3006, and the format I'm ...

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