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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Convert x,y,z origin of SRS to longitude and latitude and place on map

I have a file with this metadata - <ModelMetadata version="1"> <!--Spatial Reference System--> <SRS>EPSG:32636+5773</SRS> <!--Origin in Spatial Reference System--&...
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EPSG:3575 formulas

I have been trying to find out the exact formulas to convert EPSG:3575 to EPSG:4326 (WSG84) and vice-versa using formulas described here: https://mathworld.wolfram.com/LambertAzimuthalEqual-...
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How to manage different SRID data in same database table?

My data is in two different cities and three different EPSG code area. (Database is PostgreSQL/PostGIS.) So I think, I can not set SRID values by data. Making 3 different table is difficult. How can ...
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gdalwarp from epsg:4326 to epsg:3413; error: Too many points failed to transform, unable to compute output bounds

GDAL ver     : GDAL 3.1.1, released 2020/06/22 Python         : 3.8.0 OS:               : windows 10 Input file       : 7200 x 3600 GeoTIF in epsg:4326 File link        : [https://www.dropbox.com/s/...
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raster2pgsql populates wrong authority

I'm trying to load a raster in .tif format that is in EPSG 42303. I use the following raster2pgsql -d -C -M -I -s 42303 -t 100x100 filename.tif schemaname.tablename | psql -d dbname -U username The ...
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CRS transformation WGS 84 UTM 30N (EPSG: 32630) to ETRS 89 UTM 30N ( EPSG: 25830)

I have a coordinate table with EPSG 32630 (WGS 84 UTM30N) and when I try to transform them to EPSG 25830 (ETRS 89 UTM30N) the difference between them are marginal. I´m using QGIS doing the following ...
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Convert UTM zone into EPSG code

I have the UTM code 36S and want to convert it to EPSG. Somebody told me that if the UTM code contains 'S', then the first three digits of the EPSG code are 327, and if the UTM code is 'N' then use ...
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QGIS 3.12 issues unknown CRS on vector shapefile layer

I'm trying to export in GeoPDF my map from QGIS 3.12. After updating QGIS 3.6 to 3.12 can't recognize the project CRS EPSG 3120 for raster file and vector layer which is the color layer then I tried ...
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What is the EPSG for the S-JTSK/05 system?

Preface: Some time ago the Czechoslovakian used the S-JTSK (Souřadnicový systém Jednotné trigonometrické sítě katastrální, lit. "Coordinate system for unified trigonometric cadastral networks&...
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Difference between EPSG:4326 and EPSG:32637?

I'm exporting data from a program into a .csv for RStudio, which will then go into ArcMap. I haven't done this before and I've been given two projection options which are: WGS 84 [EPSG:4326] WGS 84 / ...
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26 views

EPSG Error Trap

I'm using pyproj and I'd like to run an error trap on the EPSG code. Specifically, if the user enters a EPSG code that is not in the proj database, it would provide a Boolean flag I can check before ...
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PROJ4 string for Gauss Conform Clarke 1880

This CRS was used to produce a set of 1:250 000 topocadastral maps for South Africa. I can't seem to find an appropriate PROJ4 string for it online.
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las2las X scale and offset combination error

I am trying to reproject a section of a pointcloud from UTM30N (EPSG 32630) to OSGB36 (EPSG 27700). My pointcloud has no crs assigned to it having been saved from Cloud Compare. It originated as a ....
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Difference between EPSG:4236 and EPSG:4326?

I know that the EPSG 4326 is the WGS84 (standard) projection, and is the projection that I am using in my code, but by a mistake, I have wrote 4236 and this worked in the code. The question is what ...
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Calculate intersection area in square meters of two polygons that use EPSG:4326 in Python

I have EPSG:4326 data for polygons and would like to calculate the intersection of these polygons in square meters. Is it possible to do this without any transformations from EPSG:4326 to some other ...
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OSM layer doesn't align on QGIS 3.8.3

So I have 3 layers with each CRS (Coordinate Reference System) are not match but it worked anyway: **layers** **CRS type** (with red line) is from GADM ...
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Coordinate system Italy Sicily

I've received a .dxf file of a small area in Sicily. Now I have a problem with the coordinate system. It's not the usual European UTM or similar. I absolutely cannot find what coordinate system it is. ...
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Projecting coordinates into different EPSGs gives inconsistencies

I am using 3 EPSGs: 4326 (WGS84), 3857 (Mercator) and 3035 (EU Copernicus dataset). I am trying to easily convert coordinates from one system to any other. To do so, I wrote a Coordinate class with ...
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Getting accurate measurements in EPSG: 27700 using QGIS 3.10

When taking measurements in a project where all layers are EPSG:27700 (with elipsoid Airy 1830) the measurements produced are incorrect. Is there a better CRS for distance measurements in the UK? Or ...
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L.imageOverlay does not fit with tiles created with maptiler

I have a vector graThe files have the same size ratio and the same bounding boxphic. I would like to partially display this graphic as a basic map. I exported most of the layers of this vector graphic ...
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Determine if a coordinate reference system is projected from Proj text

I'm looking for a reliable way to determine if a coordinate reference system is projected or not based on its Proj text. As examples I'm looking at EPSG:3857 and EPSG:4326 EPSG:3857: +proj=merc +a=...
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Cannot decode CRS from executable JAR with GeoTools

I decode a CRS from its EPSG code using: CoordinateReferenceSystem crs = CRS.decode("EPSG:3035"); This works like a charm, but when the same line of code is executed from an executable *.jar program,...
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List all EPSG projections to serve it on the client side

I am building web app that allows user to convert and reproject their spatial data and then download it. I am using flask and ogr2ogr to achieve this. Now, I want to give users a list of EPSG ...
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Using different EPSG in QGIS projects

I have 2 projects, with data from different regions and with different EPSG, 1 with EPSG 31983 and the other with EPSG 31984, according to the folder structure shown below, in Windows explorer. In ...
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Missing EPSG:3035 in GDAL/QGIS

My fresh QGIS 3.10.3 installation from https://qgis.org/debian-ltr eoan main via apt install on Ubuntu 19.10 is missing (at least) one CRS. More specifically, I cannot find/select the EPSG: 3035 ...
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R: Why is my map including the entire world WSG84 space, when all I want plotted is New Zealand?

This seems to be a very easy problem to solve, but about two hours of searching hasn't led me to the answer. I have a GIS file that I downloaded in WSG84 ESPG:4326. I read in the file using readOGR. ...
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409 views

How do coordinate reference systems and projections relate to each other?

I would like to resolve some general confusion of mine concerning the terms (and concepts) of "coordinate reference system" and "projection". The way I initially understood these terms is that a CRS ...
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Get length of a line stored in SQL Server Geometry column with srid 4326

I have some spatial data stored in SQL database geometry column called sp_geography (The field is defined as Geometry). The SQL below: f.sp_geography.STLength() returns, for example 0....
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Is there a relation between EPSG 4326 coordinates and meters?

I have information about different locations in a Java List. Each location has it's coordinates (longitude and latitude) For example: longitude = 2.37364 latitude = 42.38473 I need to look up using ...
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216 views

Transformation problem WGS84 (EPSG:4328) and ETRS89 (EPSG:4258) in QGIS

I want to transform vector points from EPSG:4326 to EPSG:4258 and vice versa for survey application. Currently the difference between the two is about 70 cm in xy direction. Using QGIS to transform ...
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52 views

Use high precision to convert image from one EPSG defined CRS to another

This question is based on another question: I'm converting multiple images (.jpg or .png) from one EPSG defined CRS system to another, e.g. from EPSG:31255 to EPSG:25833 (on a server within a Java app)...
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Convert image from one EPSG defined CRS to another

I've got a lot of image files (.png or .jpg) that I want to convert from one EPSG defined CRS system to another, e.g. from EPSG:31255 to EPSG:25833, on a server within a Java app. For each image I ...
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ETRS vs ETRF and EPSG

EPSG 25832 = ETRS89/UTM zone 32N… Wouldn't it be more correct to call it ETRF89/UTM zone 32N and, if so, what's the equivalent EPSG code for ETRF2000/UTM zone 32N?
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List of available transformations between two coordinates system in epsg using geotools

How we can have the list of available transformation between two coordinate systems using geotools? e.g. the list provided of epsg.io between EPSG:32066 and EPSG:4326 https://epsg.io/32066 Java ...
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What epoch does Proj4 for EPSG:4326 assume? NMEA stream provides Lat Lon at measurement epoch

I get a NMEA stream exported from Applanix PosPac in the epoch the measurements took place (2019). These coordinates go into a software, that interprets the NMEA Lat Lon as EPSG:4326 with Proj4 ...
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SR EPSG 3035 ETRS/LAEA Europa to EPSG: 6204 Macedonian State Coordinate System python

I would like change a raster dataset from EPSG: 3035 (ETRS89/LAEA Europa) to EPSG: 6204 (Macedonia State Coordinate System) My WKT for the first coordinate system is: PROJCS["ETRS89 / LAEA Europe", ...
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Swift library to convert latitudes and longitudes from EPSG:4326 into EPSG:3857

I would like to know a Swift library or method that I can use to convert from 4326 to 3857. I have referred some libraries such as Proj4Swift and Proj.4, but to no avail. The first link does not has a ...
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Exporting GeoPackage layer to GeoJSON changes CRS from WGS 84 EPSG:4326 to OGC:CRS84

I'm attempting to convert a polygon layer from GeoPackage format to GeoJSON in QGIS 3.10.1. The original layer has a coordinate reference system of WGS 84 (EPSG:4326) which is what I need. Yet the ...
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How to transform location data from Lamber (EPSG:31370) to GPS (EPSG:4326)?

Sorry if my way of writing is wrong, I'm a data scientist and I have little to none experience in GIS. I would like to use an open dataset (from http://opendatastore.brussels/fr/ to be precise). It ...
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Error trying to upload data using Mapbox API

I'm using the Mapbox API and I'm trying to upload my GeoJSON but I'm getting the following error: bounds west value must be between -360 and 360 My GeoJSON looks like this: {"type":"...
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Getting EPSG codes from Dotspatial.Projections

I have installed Dotspatial.Projections in my Visual Studio C# project. I have not found a way to get the EPSG codes. Is there a way to do this using the Dotspatial.Projections library?
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Wrong CRS in map with QGIS [duplicate]

I have made a raster elevation map of Greenland, and have information of the region, cities and more as vectors. The information is not in the same place as my elevation map. I have selected EPSG:...
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QGIS and Mapinfo reporting different projections for some files

When I open a tab file that's been generated in QGIS using EPSG 28355 (MGA 94, z55s) using QGIS 3.10 the projection is transformed to 5551 But when I open it in Mapinfo v17 it's correctly reported as ...
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Adding an EPSG:2056 WMTS layer to Cesium

I can implement EPSG:4326 WMTS layers to my Cesium App like this: const imageryProvider = new this.Cesium.WebMapTileServiceImageryProvider({ url: "https://openwms.domain.ch/service/wmts", ...
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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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Coordinate system for Finland in ArcGIS Desktop?

I have a shapefile of Finland in WGS84 (EPSG:4326), that I would like to convert to projected coordinate system, most commonly used in Finland. But, here is my confusion: I have found that from ...
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129 views

From QGIS to Google Maps coordinates

I try to convert QGIS coordinates to Google Maps coordinates. I use this form: geom_to_wkt( transform( $geometry, 'EPSG:25832', 'EPSG:4326' ) ) I getting the coordinate like this: Point (12....
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EPSG codes for projections to use when computing the area of global polygon sets in python env

The general answer to this question is "Use any equal area projection in units of meters that covers the world". Python code needed to make use of this is short and sweet: import geopandas as gpd ...
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Generate EPSG:4326 Vector Tiles

My goal is to create EPSG:4326 vector tiles (using Plate Caree) that can be served in Leaflet. I currently have a .shp file, which I converted to a geojson file using ogr2ogr. The main obstacle to ...
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Reprojecting CRS from Geocode API fails to match shapefile CRS

I have a shapefile obtained from this link. library(rgdal) library(rgeos) dir <- tempdir() unzip('~/Downloads/4106902.zip', exdir = paste0(dir, '/4106902')) shape <- readOGR(paste0(dir, '/...

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