Questions tagged [epsg]

A group that maintains a freely available database with standard codes for coordinate systems, datums, spheroids, units and the like

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Converting Raster to new projection in QGIS

I received an ECW file from a local City Hall that was created on EPSG 6893. I need a way to convert it to EPSG 3844 so we can use it in Autocad MAP3D. But I am not able to find a way to export the ...
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Convert NAD_1983_ALBERS to WGS 84

Recently I am working with US wetlands data, https://www.fws.gov/wetlands/Data/State-Downloads/NJ_shapefile_wetlands.zip Data is in NAD_1983_ALBERS projection, and I want to transform it to lat/long ...
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Reprojecting from EPSG:6931 to EPSG:3857

I am working with weekly Arctic Sea Ice Thickness Maps derived from CryoSat-2/SMOS Data Fusion (https://data.seaiceportal.de/gallery/index_new.php?lang=en_US&ice-type=extent&active-tab1=...
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Different spatial coverage in scenes downloaded from USGS LANDSAT data

I am using M2M Python API to download scenes of Landsat 8 data for North America region, as shown in the code snippet below. datasetName = "landsat_band_files_c2_l1" spatialFilter = {'...
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EPSG code has stopped working with pyproj.Transformer.from_crs, but still works with pyproj.transform and pyproj.Proj

My code: from pyproj import Proj, Transformer EASE_Proj = 'EPGS:3409' WGS_Proj = 'EPSG:4326' transformer = Transformer.from_crs(WGS_Proj, EASE_Proj) Suddenly produces the following error after ...
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EPSG.io API for PROJ definitions

I am trying to use the EPSG.io API to retrieve PROJ definitions for a CRS. I know that they provide them in their website but the API only seems to be able to retrieve in WKT or GML format. Is there a ...
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Map units relative to what?

If I have a map in say EPSG:2180, which represents coordinates is in meters, what is this meter reading relative to? To start of map bounding box? World O,O? What is the right way to reference a meter ...
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Correct parameters to visualize WMS layers in Leaflet and proj4?

I'm struggling to visualize WMS-layers from a REST service using Leaflet. All I see currently is a gray map, not changing anything when moved. The layers I want to visualize are located in Faroe ...
3 votes
2 answers
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Importing squares indicated through EPSG:3035 into QGIS and merge with shapefiles

I have some data on population estimates in Germany for 1km by 1km squares. (Data can be found here: https://www.destatis.de/DE/Service/EXDAT/Datensaetze/bevoelkerung-geo-mobilfunkdaten.html when you ...
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3 answers
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Identifying the EPSG code for projection

I'm trying to convert a dataset that has projection parameters in meters to lat/long coordinates. After researching online and on stack exchange, I came up with a code. I used the input EPSG as 3857 ...
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Different anchor point for EPSG:3857 coordinates [closed]

I have a couple of points in the EPSG:3857 CRS. These points are centered on 0, 0, which is the center of a map. I can convert these points to EPSG:4326 in Javascript with the proj4js library using ...
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How to use deck.gl to render a polygon layer that is using a different coordinate system than the standard LAT LONG?

Background I am using deck.gl's PolygonLayer to render data that looks like this: data.json: { "someKey": "someValue", "spatialReference": { "wkid&...
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Leaflet not getting correct bounding area for NASA GIBS map in EPSG:4326 CRS

I am creating an app using Leaflet and GIBS. The trouble I am having is when I try to use a link from EPSG4326 the bounding box is incorrect. When I use ESPG3857 the bounding box is correct. Draw ...
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Is Proj4JS-definition for EPSG:3021 (RT90) wrong on https://epsg.io/3021?

I'm writing a webapplication which handles coordinate transformations to and from WGS84. The defs for EPSG:3021 (RT90, Sweden) from https://epsg.io/3021, looks like this: proj4.defs("EPSG:3021&...
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Convert EPSG and vertical datum of a DEM file

I have DEM files that are in EPSG:4326 - WGS 84 and use latitude and longitude for coordinates. The elevation units are in meter but use the WGS84 ellipsoid with WGS84 elevation. I want to convert ...
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How is the XY error (m) for GCPs/checkpoints in Agisoft Metashape calculated?

I have a project in Metashape where I am using 8 GCPs and 1 checkpoint. The selected coordinate when importing GCP survey is WGS84 (EPSG::4326). My school advisor, who is a GIS expert, but has limited ...
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Slope calculation with datasets in different CRS

I have a shapefile containing several zones. This file is in CRS EPSG:32644 (WGS 84 / UTM zone 44N). I have a DEM file (originally in CRS EPSG:4326 - WGS 84) that I converted to EGM08. The elevation ...
3 votes
1 answer
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In which step should we reproject a LiDAR Dataset using LAStools when extracting DSM and DTM?

I have a lidar dataset from which I am trying to extract a DSM and a DTM (in meters) from it for EPSG 32614 (WGS84). Below info: lasinfo (220926) report for 'C:\LAStools\bin\Data\Cornfield Non\Backup ...
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Multiple transformations within a single projection on epsg.io

I am referring to https://epsg.io/24313 Here, EPSG:24313 is written in bold at the top of the page, and then there are multiple subprojections listed underneath. I am confused about which one to use, ...
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How to project to the Berghaus Star projection in R?

I am looking to recreate the map on the American Association of Geographers logo using R: However, I cannot find a proj4string or an epsg code for the Berghaus Star map projection. There is an ESRI ...
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Why does conversion from EPSG:4326 to EPSG:9451 only leads to swapped coordinates?

import shapely.wkt import geopandas as gpd I have a shapely polygon and a GeoSeries: p = shapely.wkt.loads('POLYGON((-3 50,-3 51,-2 51,-2 50,-3 50))') s = gpd.GeoSeries(p,crs=4326) print(s) returns: ...
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How may one convert from Lo.22/18 Prelim. to Schwarzeck / Lo22/17: EPSG29377?

I am currently georeferencing an archival map with a set of coordinates from a Documents. Some of the coordinates are given in Schwarzeck / Lo22/17, the other points however are given in Lo22/18, a ...
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1 answer
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ogr2org SHP file to SQLSserver Failed to process SRS definition

I am having issues importing a SHP file into SQLServer. The SHP file is EPSG 28354 (drawn in QGIS 3.x) and has these assoc files: REE_ProjectAreas.cpg REE_ProjectAreas.dbf REE_ProjectAreas.prj ...
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Difference between area of use and WGS84 bounds on epsg.io - which one is relevant?

According to epsg.io, EPSG:25833 has "accuracy 1.0 m". I think I have to use it in the right region of the world to have this level of accuracy. The website also states: Area of use: Europe ...
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1 answer
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How to convert long/lat LAZ to coordinate system?

I have a Canadian lidar LAZ file, and it is in long/lat based in UTM10, sourced from LidarBC (https://governmentofbc.maps.arcgis.com/apps/MapSeries/index.html?appid=d06b37979b0c4709b7fcf2a1ed458e03). ...
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How to convert DEM with vertical DATUM DHHN2016 height EPSG:7837 to EGM96 height - EPSG:5773?

There is a lidar data source of digital elevation model of Germany. The spec of the lidar data is: Horizontal CRS: EPSG 25832 Vertical DATUM: EPSG 7837 I have anther DEM whose vertical datum is ...
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What is the min x/y and max x/y coordinates of the UK using epsg 27700?

I need to get a precise point of the min/max x/y coordinates of the UK. Anyone know if theres an official point or something close enough?
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Importing geopackages (epsg:900913) into PostgreSQL/PostGIS shows up as 900914

I am having this weird issue that I am trying to wrap my head around to figure out what is wrong but have not yet figured out. Hopefully someone with more experience would be able to provide some ...
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Set Mapbox projection to be compatible with EPSG:27700

I have 5m rasters that I am adding as layers to mapbox. The rasters themselves are projected in EPSG:27700 (OSGB36), whereas mapbox is projected in WGS84. Because of this I am getting certain ...
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Why does a copy of a WGS 84/EPSG:4326 projection reverse lat and lon?

I am looking into making a user defined CRS. All my data and my project are currently in EPSG:4326. When I go to settings -> custom projections, then 'copy parameters from existing CRS', if I ...
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Generate bounding box from PNG image and World File

From this folder I can get two files: PNG Image World File   (.wld) From this page where they document how these files are to be used, they say that they are generated in the EPSG:4326 projection. My ...
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Handling internal reprojections for geoprocessing using R

Suppose I want to create a tool/function that has to, e.g., create buffers or measure distances internally to produce an output with a geographic projection. How do I ensure that the distance ...
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Order of latitude and longitude in EPSG:4326

I recently started working with GPS data in PostGIS and am very confused about the order of latitude and longitude. I'm from Europe, and here everyone I know uses latitude first, longitude second, e.g....
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Map not showing up when set to GDA2020

When I open the quickmapservices/OSM (or Google) map it opens up on a EPSG:4326 (default), but since I am in Australia I need to use the GDA2020 projection. When I try to change the CRS to GDA2020, ...
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Are latitude and longitude of WGS84 geodetic or geocentric? [closed]

I note from wiki that there are other CRS under WGS84 apart from EPSG:4326 but I am only interested in EPSG:4326. I have also visited https://epsg.io/ page regarding EPSG:4326; however, I can’t find ...
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why error msProcessProjection(): Projection library error?

I'm using mapserver in Centos 7. I'm using fgs from this (http://www.maptools.org/fgs/index.phtml?page=downloads.html). I'm using mapfile with epsg:4326, but I get error <ServiceException> ...
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Getting the WKID/EPSG code as dynamic text in ArcGIS Pro Layouts

I'm trying to get the WKID/EPSG code of the Coordinate System/projection used in the map as dynamic text in a ArcGIS Pro layout. It should look something like this: ETRS 1989 UTM Zone 33N N-zE (EPSG: ...
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How to convert crs_wkt starting with GEOGCRS to a ogc_wkt string (to use rioxarray.reproject_match)

I have two xarray data arrays (1. land_data, 2. climate_data) that I want to reproject and match (rio.reproject_match()): climate_data_matched = climate_data.rio.reproject_match(land_data) Land data ...
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Reprojecting from EPSG:3857 to EPSG:28992

I'm attempting to reproject a coordinate in EPSG:3857 to EPSG:28992. The problem I'm running into is as follows: When I use GeoPandas (ie. df.to_crs(epsg=28992)) to reproject my coordinates I get a ...
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Is there a way to get/use a specific Datum Transformation in Pyproj not suggested by TransformerGroup?

I need a pyproj transformer (or at least a wkt string for the operation) going from CRS EPSG:3035 to CRS EPSG:28992 specifically using the datum transformation operation EPSG:4830. Very similar to ...
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Transformation from ETRS89/EPSG:3416 to ETRS89/EPSG:3035

I have already worked with the first KBS, but now I need to convert my whole system to EPSG:3035. I imported this system to my QGIS, and tried to convert everything, but now my lines/polygons are far ...
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SMAP projection

I want to know how to convert the lat/lon fields in NASA's SMAP soil moisture data in HDF format to EPSG:4326. Lat/lon fields in the SMAP HDF files contain 'Latitude/longitude of the center of a 9-km ...
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Transforming multiple sets of coordinates in attribute table by name of field using PyQGIS

I have a script that takes a set of points and computes the distance to nearby geographic points taken from OSM data. The output layer is the point layer with new fields showing the distance to, name ...
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Problems with the projections of the WMS of Cadastral Cartography in Spain when exporting pdf plans in ArcGis

Starting from an ArcMap project (10.4.1 for Desktop) with the Coordinate System of the EPSG 25830 Data Framework (ETRS89 UTM Zone 30), I add a connection to the GIS server for cadastral mapping in ...
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What projection to use for checking how near a point is to a polygon?

I'm using Shapely to do some GIS analysis in Python. I have a Polygon and a Point, both in EPSG 3857 (web Mercator). I want to check whether the point is within a given distance (in metres) of the ...
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entwine build produces a strange value for bounds in ept.json

I am relatively new to entwine. In our project, we have a requirement to build entwine from Laz dataset in EPSG:4326. I understand it might sound weird that we have this dataset in geographic ...
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Displaying WGS 84 (EPSG:4326) coordinate grid over EPSG:3857 map in QGIS

Is there a way to either display a grid with WGS 84 decimal degrees over a map that is in EPSG:3857, something like OpenStreetMap? I've tried changing the project's the map's and the grid's CRS but I ...
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Horizontal coordinate adjustment using EPSG 9621 operation method in PostGIS

We have some Cartesian coordinates which needs to be applied with similarity transformation. The transformation operation method describing how to do the same is explained in EPSG 9621 method. How to ...
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The coordinate system is different, but the location is correct. Why is that?

From QGIS, I loaded Google Satellite from xyz tile layer, and on top of that, I took points from Google Earth to KML and sprayed them. However, Google Satellite (EPSG:4326) and Google Earth (EPSG:3857)...
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Why is this shapefile not showing in the correct spot?

I have this shapefile (https://1drv.ms/u/s!AqMcxdEHKstsmgi1C7FO_81px_mg?e=09f6Ze), and this is the content of .prj file: GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["...

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