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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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Python output GeoTIFF in arcseconds

I have been utilizing code that looks like the following to output GeoTIFFs for some time (rudimentary, but gets the job done): def output_geotiff(data, outfile): # Get our dimensions cols = ...
Miss_Orchid's user avatar
2 votes
2 answers
65 views

Obtaining list of all EPSG code for a single location on map

There are APIs like https://epsg.org/info-api.html, maptiler which takes text input like "San francisco" and returns EPSG codes, but the problem, is I am not able to find a library or a tool ...
uk2797's user avatar
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0 answers
36 views

Mercator CRS that covers the extent -90,-180 to 90,180

Is there a EPSG CRS for Mercator that isn't deprecated and covers -90.0,-180.0 to 90.0,180.0?
Paul Malm's user avatar
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0 answers
34 views

Small Offset in QGIS Reprojection from WGS84 to ED50

I have a .shp in QGIS in EPSG:32637 (WGS84/UTM Zone 37N) and I want to reproject it to ED50, which is in this case EPSG:23037. When I do it manually in in QGIS, the reprojection works fine and both ...
hector's user avatar
  • 1
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0 answers
30 views

Getting EPSG code from non conventionnal grid

I have a non usual grid defined by '+proj=stere +lat_0=90. +lon_0=0. +lat_ts=45. +x_0=619652.07 +y_0= 5062818.34 +ellps=WGS84 +datum=WGS84' Based on this information, I would like to get the ...
Simon MITTELBERGER's user avatar
0 votes
0 answers
49 views

Reproject pseudo Plate-Carree to "Icosahedral Snyder Equal Area" using GDALWARP

Reproject pseudo Plate-Carree to "Icosahedral Snyder Equal Area" with gdalwarp. I am trying to reproject a plate-carree to ISEA "Icosahedral Snyder Equal Area". I suspect ISEA ...
Molly's user avatar
  • 35
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1 answer
50 views

Projections for Iowa South are now inaccurate (EPSG, SpatialReference)

Sometime in the last 30 days (maybe longer), the projections being provided on e.g. SpatialReference.org and EPSG.io are inaccurate for epsg:3418. (Iowa South) and maybe others? https://...
Josh Larson's user avatar
1 vote
1 answer
48 views

Double geometries in GML with different EPSG using GDAL

In our GML we have two geometries (a British National Grid and a ETRS89) so to try and extract these we use a GFS file with the following additional XML to extract them. <GeomPropertyDefn> <...
tjmgis's user avatar
  • 3,330
2 votes
0 answers
56 views

Chatham Islands Bounding Box issue in EPSG:4326 on GeoServer

I have vector layer published on GeoServer for New Zealand territory including Chatham Islands, that are close to Anti-Meridian line: Layer is sourced from PostgreSQL DB, and it doesn't have ...
Maria Savchenko's user avatar
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1 answer
335 views

JavaScript formula to convert WGS84 lat, long values to RD_New co-ordinates [closed]

I have a requirement in my project to convert WGS84 GPS format co-ordinates to RD_New co-ordinates WGS84(E,N): 51.998929,4.375587 RD(X,Y): 85530,446100 I see some online tools and Proj4 js ...
Priya Ganesan's user avatar
3 votes
0 answers
34 views

What is the EPSG code for UTM 28P? [duplicate]

I have been given some data from Sierra Leone, with coordinates collected from a GPS app which specifies UTM 28P. The standard UTMs for Sierra Leone are 28 or 29 N or So, which have corresponding EPSG ...
paul r's user avatar
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1 vote
0 answers
72 views

Reprojection from EPSG:4167 to EPSG:2193

I have PostgreSQL database with defined EPSG:2193. WMS service that I need to use and upload data from it is in EPSG:4167. https://data.linz.govt.nz/layer/105689-nz-addresses/ https://data.linz.govt....
Maria Savchenko's user avatar
2 votes
1 answer
121 views

Is there a comprehensive list of mapnprojections implemented in R?

I would like to experiment a bit with different and less-frequently used projections in R for global maps, but I am playing a guessing game as of which are actually working. I tried to look up ESRI or ...
Herman Toothrot's user avatar
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0 answers
110 views

Order of coordinates when transforming with GDAL in Python

I'm trying to use GDAL in Python to transform coordinates from one CRS to another. More specifically, from MGI / Austria GK M31 (EPSG:31258) to WGS 84 (EPSG:3857). For example, I want to transform the ...
nieswand's user avatar
1 vote
1 answer
109 views

EPSG for ETRS89 / Lambert Conic in Spain?

Official projections in Spain are based on ETRS89 / UTM. A royal decree says Lambert Conic Conform should be used for small scales. I found a paper that describes well the parameters of that ...
Gilles's user avatar
  • 405
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2 answers
533 views

Transforming geometry from EPSG:4326 (source CRS) to EPSG:3857 (target CRS - Leaflet's OSM default CRS)

My problem is I tried transforming from EPSG:4326 to WGS84, and it worked (just swap the axis order), and I also tried transforming from EPSG:4326 to EPSG:3875, and it worked too (the coordinates ...
Harry's user avatar
  • 11
1 vote
0 answers
57 views

Reprojecting shape data in QGIS

My json data is not projecting correctly. The shape should be in Mali. Can anyone explain how to adjust the projection? [ { "Country": "Mali", "Layer": "...
JaK's user avatar
  • 91
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0 answers
121 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 ...
Ufuk Can Bicici's user avatar
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0 answers
97 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 ...
cmosig's user avatar
  • 143
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1 answer
122 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 ...
DaveF's user avatar
  • 13
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0 answers
30 views

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 ...
cmosig's user avatar
  • 143
1 vote
0 answers
35 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 ...
nono303's user avatar
  • 61
2 votes
0 answers
85 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 ...
Ben Whitely's user avatar
0 votes
2 answers
47 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", ...
Lydon Ch's user avatar
  • 511
1 vote
0 answers
114 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 ...
Ripa's user avatar
  • 21
2 votes
1 answer
194 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. ...
bugmenot123's user avatar
  • 10.9k
2 votes
0 answers
36 views

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/...
bugmenot123's user avatar
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1 vote
0 answers
535 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 ...
eulinean's user avatar
1 vote
2 answers
243 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 ...
TPPZ's user avatar
  • 427
2 votes
1 answer
112 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 ...
sokolik745's user avatar
2 votes
1 answer
670 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 ...
QRW's user avatar
  • 53
1 vote
0 answers
147 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 ...
Jvg's user avatar
  • 143
0 votes
0 answers
111 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. ...
user224302's user avatar
0 votes
1 answer
47 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 (...
GStav's user avatar
  • 309
1 vote
1 answer
108 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 ...
Melbourne Boi's user avatar
2 votes
3 answers
2k 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 ...
Geo_it's user avatar
  • 523
2 votes
4 answers
279 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 ...
theonewhodidnotknow's user avatar
3 votes
1 answer
1k 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 ...
jpinilla's user avatar
  • 3,230
2 votes
1 answer
490 views

Georeferenced image not showing in QGis [closed]

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 ...
QGis novice's user avatar
2 votes
1 answer
149 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 ...
marianoju's user avatar
  • 183
2 votes
1 answer
161 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 ...
CodyN's user avatar
  • 21
0 votes
1 answer
34 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 ...
Lucijan Troha's user avatar
0 votes
0 answers
490 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 ...
Hasan's user avatar
  • 55
5 votes
1 answer
601 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')
Stücke's user avatar
  • 539
0 votes
0 answers
42 views

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 ...
Alin-Liviu Tatarus's user avatar
0 votes
2 answers
429 views

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 ...
houston_amoeba's user avatar
0 votes
1 answer
247 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 = {'...
Roma Jain's user avatar
0 votes
1 answer
864 views

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 ...
Robbie Mallett's user avatar
4 votes
1 answer
638 views

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 ...
rosewall's user avatar
0 votes
1 answer
106 views

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 ...
Michał Szwaczko's user avatar

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