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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Why ellipsoidal distance measured in EPSG:7030 in QGIS?

I measure distance (km) in QGIS (Ctrl+Shift+M) . In Ellipsoidal, it using CSR EPSG:7030. In Cartesian, they didn't say what projection is used. If it using ellipsoidal option, does it mean measured ...
1 vote
1 answer
392 views

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 ...
0 votes
0 answers
35 views

Interpreting EPSG:4326 coordinates in a .tif file for a DEM

I am working on a piece of algorithm where I need to have access to ground altitude values from a digital elevation model. The model that I am using is SRTM1, which I access to by using the elevation ...
0 votes
1 answer
179 views

EPSG CRS Error Trap

I'm using pyproj and I'd like to run an error trap on the EPSG CRS code. Specifically, if the user enters a EPSG CRS code that is not in the proj database, it would provide a Boolean flag I can check ...
2 votes
1 answer
147 views

Georeferenced image not showing in QGis

I am trying to get a Georeferenced image into QGis project, but it does not work. The georeferenced image has 81 points, and I've set the CRS to EPSG:3035 (the same as the project). If the QGis ...
0 votes
0 answers
28 views

Understanding Equal Earth Projection (EPSG:8857)

I am considering using the Equal Earth Projection (EPSG:8857) in a project because it seems to meet the requirements I am after. If I understand correctly, because this is an equal-area projection ...
2 votes
1 answer
441 views

Reprojecting EPSG:5514 to EPSG:3857 for use in Leaflet

I have one JPG (170 MB) and JGW file of a small area projected in EPSG:5514 (Image provider told me.) JGW file: 0.1250000 0.0000000 0.0000000 ...
0 votes
1 answer
200 views

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 ...
0 votes
1 answer
35 views

EPSG transformation just swaps coordinates in GeoServer GetFeature request

First time I've done much of this so I may not be using the correct terminology. Also, I'm aware it could probably be resolved with post processing, but I'd like to fix it with this context, if ...
2 votes
4 answers
157 views

Getting EPSG CRS code from text information "WGS 84 / UTM zone 31N"

I have this text information regarding a CRS: "WGS 84 / UTM zone 31N". I need to get the corresponding EPSG code or create the corresponding CRS object with PyQGIS. I could use the ...
0 votes
1 answer
592 views

Change GeoNetwork default CRS from EPSG:4326 to EPSG:27700

I am a relatively new convert to the GeoNetwork (on 2.6) and presently setting up a server in the UK but have been having issues with the crs code used in proj. I think this is where I need to make ...
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0 answers
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CRS selection for global product with minimal area distortion

I am building a model that takes data from different sites around the world as input where each pixel has a 10m resolution. I am now seeking a CRS system that works best for my use case. The ...
7 votes
2 answers
1k views

proj4js with geocentric CRS

I am developing a little web app to transform coordinates between CRSs. To do that I am using proj4js, but I notice that proj4js can't work with geocentric CRSs. Is there another tool similar to ...
0 votes
1 answer
151 views

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 = {'...
17 votes
3 answers
24k views

How can EPSG:3857 be in meters?

It is said that unit of measure for EPSG:3857 is the metre. How it can be, if the range of these coordinates is Projected bounds: -20,026,376.39 -20,048,966.10 20,026,376.39 20,048,966.10 (from the ...
1 vote
0 answers
17 views

Bad values with gdalwarp and "aliased" coordinate transformation

I've strange values using gdallocationinfo on vrt with coordinate system transformation. Here is my use case, maybe you can help to understand what I did bad or misunderstood 1) I've got a bunch of ...
2 votes
0 answers
41 views

Raster crossing anti meridian in QGIS

See the raster overlayed in QGIS below: I am trying to project a GeoTiff in QGIS that crosses the anti meridian, but the area circled in red in the above picture is exactly 180/-180, so there is some ...
0 votes
2 answers
29 views

Custom Projection with Offset from EPSG:28350

our local grid has easting offset 700_000 northing offset 7_500_000 within EPSG:28350 origin How can I extend EPSG:28350 OGC WKT below to add the above offset? PROJCS["GDA94 / MGA zone 50", ...
1 vote
0 answers
76 views

Identify EPSG code from image

We made a project where we asked students to draw things on a map. Now I would like to import the results into QGIS, but I am unable to find it. I used a picture but cannot find the name of the ...
0 votes
0 answers
28 views

GML axis order with EPSG-Code 31468 and 5678

EPSG 31468 and 5678 basically mean the same: DHDN / 3-degree Gauss-Krueger zone 4. The difference is the axis order. EPSG 31468: northing-easting EPSG 5678: easting-northing In GML you can define a ...
1 vote
1 answer
161 views

Description CRS EPSG:6372

does someone know where could I find a description of CRS EPSG:6372. I searched in the EPSG page but seem not to find something that quick..
1 vote
1 answer
63 views

Calculating distance discrepancy: EPSG 3112 Projection VS GeoDesic (Karney), is ~0.5% difference normal?

I have lat-lng coords in EPSG:4326, and I'm calculating the distance between them (in metres). Since these are in Australia (and Australia wide, therefore no specific MGA zone projections), I'm using ...
1 vote
1 answer
693 views

Leaflet with EPSG:3765; GridLayer.js:661 Uncaught Error: Attempted to load an infinite number of tiles

I am not sure about Leaflet 1.7 possibility to show layers in EPSG:3765. Not sure because from Leaflet docs it is not possible but I found something like Proj4Leaflet and it looks like it can... I get ...
1 vote
2 answers
88 views

How to extract information from a shapefile with the command ogrinfo in a machine readable way

I am looking for information like the SRID/CRS for a shapefile in an automated way. I know that by using ogrinfo path/to/xxx-filename.shp yyy-layer -so I can see some output with indentation left to ...
2 votes
0 answers
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Availability of EPSG CoordSystem API database

In OGC services coordinate reference systems are often referenced by their OGC URI, e. g. http://www.opengis.net/def/crs/EPSG/0/4326 Those URIs point to XML documents at https://epsg.org/api/v1/...
1 vote
2 answers
542 views

Transform EPSG:25830 to EPSG:900913

I have a shapefile file of the "cadastre" of Spain, I use the following command in Linux to get the SQL file to next insert in database with PostGIS (shp2pgsql -s 900913 PARCELA.SHP> ...
2 votes
1 answer
61 views

Availability of www.opengis.net CRS database

In OGC services coordinate reference systems are often referenced by their OGC URI, e. g. http://www.opengis.net/def/crs/EPSG/0/4326 Those URIs point to XML documents that include more information. ...
1 vote
0 answers
169 views

Converting .shp polygon from EPSG:4326 to EPSG:3857

GIS newbie at a loss for solutions here. I've drawn and mapped out a shapefile with 51 features in QGIS based on administrative region data which has been in EPSG:4326. I would now want to convert ...
0 votes
1 answer
212 views

What does the SMAP grid (EPSG: 6933, EASE-Grid 2.0) looks like?

One of the projections that SMAP (Soil Moisture Active Passive) used is EPSG: 6933 (Global, Equal-Area; EASE-Grid 2.0). For the 9-km resolution grids, the earth data website says the grids has 3856 ...
2 votes
1 answer
207 views

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 ...
3 votes
3 answers
3k views

Converting .kml to different projection in QGIS

I have run into a slight problem it would seem. Yesterday I downloaded qgis in the hope that it could convert a .kml overlay of some administrative boundaries from EPSG:3857 (Google maps) to EPSG:...
2 votes
1 answer
47 views

Different OGC WKT strings for EPSG:3135 in reference sources

I found two sources for getting WKT strings: https://www.spatialreference.org/ https://epsg.io/ But there are differences in OGC WKT string in these two sites for coordinate system EPSG:3135. The ...
7 votes
1 answer
6k views

Is there an EPSG code to specify WGS84 in (lon,lat) order instead of (lat,lon)?

Is there an EPSG code like EPSG:4326 or EPSG:4329, but that specifies (lon,lat) order instead of (lat,lon)? I've tried exploring the websites http://spatialreference.org and http://epsg-registry....
0 votes
0 answers
61 views

QGIS load WFS Layer into WMS based Map shows wrong position

I experienced the problem, that I tried to load a WFS onto a WMS based Map. I double checked the CRS which is EPSG:25832 for either the Map and the WFS Information within the source and my project. ...
1 vote
0 answers
58 views

Reproject EPSG:4326 to entire hemisphere polar stereographic. No EPSG code available?

I am trying to gdal reproject a series of WSG84 (Lat/Lon EPSG:4326) GeoTiff into North Pole stereographic projection, covering the entire northern hemisphere from the equator up to the pole at 90 ...
1 vote
0 answers
185 views

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 ...
0 votes
1 answer
31 views

Look up table for 3D to 2D EPSG CRS

I would like to write a function (in Python) that receives a 3D EPSG CRS and returns the horizontal EPSG CRS equivalent. Eg. Receiving 7415 (Amersfoort / RD New + NAP height) -> Returning 28992 (...
2 votes
3 answers
508 views

What is the right EPSG CRS code for the United States?

This is my first experience with US cartography. I downloaded the US states from here https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html (the layer is ...
5 votes
4 answers
6k views

What are the units in CRS EPSG:4326?

I have been searching for an answer to this question for a while now, and for some reason, I can't seem to find it. How are the units defined in the EPSG:4326 system? Are longitude and latitude ...
2 votes
1 answer
233 views

writeRaster() not preserving EPSG information

I need to upload some rasters in .tif format to a geoserver that requires EPSG information to correctly display the data. When I assign an EPSG using crs() to a raster that is in memory, the WKT ...
3 votes
1 answer
182 views

Choosing CRS for area of interest of my project

I've been searching through several web pages and haven't found an answer. I work in QGIS, usually with EPSG:25830 because my projects are mainly located in Spain but when representing a larger area I ...
2 votes
1 answer
96 views

Limitations of coordinates transformations

In order to apply shapely.affinity.scale (see documentation) I have had to transform a series of geodetic coordinates to projected coordinates, see python - UserWarning: Geometry is in a geographic ...
1 vote
1 answer
52 views

How to create buffers in meters for locations around the world

Disclaimer: I am very new to geographic calculations. I have a location dataset (points long & lat) for events that happened around the World. I want to create 5km rings around these locations ...
5 votes
1 answer
6k views

Converting UTM to Lat/Long with a geoJSON file in pyproj

I am trying to convert a geoJSON file in UTM (EPSG 29902) to WGS84. I've seen other examples online which show how to use the transform function in pyproj; however all the ones I have seen are for a ...
2 votes
1 answer
84 views

Is it possible to have a combination of horizontal and vertical CRSs with different distance unit systems?

For example, please consider a combination of EPSG:6360 (NAVD88 height (ftUS)) as vertical CS and EPSG:6596 (NAD83(2011) / Washington North(metre)) as horizontal CS. These two CRSs have different ...
0 votes
1 answer
26 views

Use of Windows symlinks with ArcGIS Pro

In my workspace I have a folder with a large amount of *.tif files. They are without header, so without spatial reference. From that I made symlinks to these files in 2 separate locations. In first ...
0 votes
0 answers
233 views

Projection system that use in North America (USA, canada, Mexico, etc) like in Europe use EPSG:3035?

Is there a same projection system that use in North America (USA, Canada, Mexico, etc), Asia, and Africa like in Europe use EPSG:3035? which coordinate system or projection in metric system for North ...
3 votes
1 answer
643 views

EPSG:3857 to 4326 - incorrect geometry

I need to get simplified boundaries of all countries with some buffer around them (20 km). I am using QGIS, I converted my country polygons vector layer from 4326 to 3857, set buffer, used simplify ...
5 votes
1 answer
353 views

Robinson projection in GeoPandas

How can I apply Robinson projection in a GeoPandas plot? import geopandas as gpd world = gpd.read_file(gpd.datasets.get_path('naturalearth_lowres')) world.plot(column='pop_est')
1 vote
1 answer
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Get list of CRS in QGIS by python? [closed]

It is possible to get list/dictionary of "Recently used coordinate reference system" from QGIS by python? Or get list of all "Coordinate reference systems of the world" also from QGIS by python.

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