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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45 views

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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Using EPSG:2169 with Leaflet [closed]

I'm trying to use Leaflet with a specific projection EPSG:2169 (Luref, or Luxembourg). I saw that if I don't use a "standard" projection like WGS84, I have to use Proj4Leaflet and reference it to the ...
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3answers
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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:...
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1answer
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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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1answer
377 views

Identify EPSG in SQL Server

I have been trying to load a shapefile available at https://www.elections.on.ca/en/voting-in-ontario/electoral-district-shapefiles/open-use-data-product-licence-agreement/download-shapefiles.html to ...
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1answer
29 views

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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1answer
35 views

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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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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1answer
41 views

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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1answer
586 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 ...
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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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1answer
28 views

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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2answers
64 views

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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0answers
29 views

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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1answer
174 views

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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2answers
158 views

Check if custom CRS already exists, find EPSG

I created a "custom" CRS with specifications I got from someone who needs the data in that specific system. It worked well and I now have a *.prj file, so basically a WKT-representation of that CRS. ...
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1answer
37 views

Is height conversion between ellipsoids necessary?

I have measurement data that uses X/Y in different zones of JGD2011 and an ellipsoid height above GRS1980 (but it also includes a geoid height as well). My task is to transform this data to "WGS84 LLA"...
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1answer
66 views

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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1answer
35 views

How to check for PostGIS Function Support Matrix for new custom EPSG imported from EPSG site

I need a support for CRS that was not available in PostGIS 2.5 so I looked up into the EPSG site they had simple easy straight forward insert query to add EPSG so I did that now how do I check or know ...
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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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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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Difference between WGS84 and EPSG:4326?

What is the difference between WGS84 and EPSG 4326? It seems like for a given dataset it might be both WGS84 and EPSG:4326.
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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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1answer
76 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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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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1answer
127 views

Get UTM zone with GeoPandas from a shapefile

I want to know to which UTM zone belong a shapefile. With GeoPandas I can read a shapefile and know its EPSG code: import geopandas as gpd dataframe = gpd.read_file('shapefile.shp') print(dataframe....
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1answer
55 views

Getting Projection Code (EPSG) from Coordinates and known location

I have Coordinates (x=3381438.573, y=5794542.432) and a location (somewhere south of Berlin). Is there a way to find out the Projection code this data was defined with? A website would be nice.
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Map in QGIS is displayed tilted? [closed]

CRS is wgs 84 epsg:4326 Still the map and the data on screen is showing tilted.
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1answer
4k views

Using customized Coordinate System in ArcGIS Desktop?

I don't know so much about coordinate systems... In my office we use to deal with spatial data coming from archaeological sites. Each site has its own x-y-z coordinate system (GCS). Three simple ...
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2answers
190 views

Get a list of all supported EPSG code from OGR

I need get a a list of all supported EPSG code from OGR/GDAL. I need this becaouse i'm developing a C++ application map, and I need this information to put it in a user form. I read the OGR ...
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1answer
213 views

Getting EPSG code in pyproj with version==2.1.3?

I'm using pyproj in python and I want to get epsg code based on an existing Proj class. An example in version=1.9.6: from pyproj import Proj CGCS2000metre = Proj(init='EPSG:4544') print(CGCS2000metre....
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2answers
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Adding custom projection to epsg.properties?

I have created an entry at www.spatialreference.org of a customized .prj file. http://www.spatialreference.org/ref/sr-org/7973/ I'm trying to add the generated geoserver entry to the EPSG.Properties ...
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2answers
265 views

pyproj EPSG:4326 converts degrees to radians

Case My input is a point given as x, y and an SRS name which specifies how to interpret the numbers. My goal is to convert these into lon, lat in degrees. I convert this by using this piece of code:...
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OpenLayers: find out the units of height value

Is it possible in OpenLayers to find out (ideally from ol/proj/Projection or from ol/source/Source), what is the Unit of Measurement for height (z-coordinate)? Or is it possible to assure somehow, ...
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2answers
82 views

Same EPSG code for different objects

I started recently working in a project where I need to start using EPSG codes to identify coordinate systems and their elements. I saw that a single EPSG code can identify multiple objects. I am ...
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2answers
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math formula for transforming from EPSG:4326 to EPSG:3857

is there any math formula for transforming from EPSG:4326 to EPSG:3857 ? i want to implement it in php code
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1answer
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Import the EPSG:7775 projection without PROJ.4 to QGIS?

I wanted to define the EPSG:7775 projection in QGIS but it has no field for PROJ.4. Everywhere I've seen that you can import a projection with PROJ.4. How do I import this? I am trying to do this (...
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1answer
73 views

Create Memory layer in pyQGIS with projected coordinates

I am trying to make a memory layer in QGIS using python and then generate a grid base on calculations in meters. When I run the script, a banner comes and says the CRS is not defined. Then when I look ...
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NDFD Grib2 geotransform

I am trying to transform the projection for my data in grib2 format to long/lat, but I'm not sure I'm using the correct EPSG. The data says it uses a "Lambert_Conformal" projection with a WGS84 ...
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0answers
293 views

Change Axis Order when transferring data from WFS to PostGIS DB

I am using GeoKettle to transfer data from a WFS service to a PostGIS database. The projection of the geometries is EPSG:4326 : GEOGCS["WGS 84", DATUM["World Geodetic System 1984", SPHEROID[...
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0answers
173 views

EPSG:4326 being saved as CRS:84

I am trying to save a GeoJSON file in QGIS as EPSG:4326, but it keeps being saved as CRS84. EPSG:4326 and CRS84 are the same except CRS84 saves coordinates as long, lat - and EPSG:4326 saves them as ...
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Why does QGIS save EPSG:4326 as long, lat? [duplicate]

Why does QGIS save EPSG:4326 with coordinates in the longitude, latitude format? Isn't the correct standardized format latitude, longitude?
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2answers
616 views

ProjNet. Coordinate reference system transformation deviation

I have a project with C# that contains a CEFSharp viewer showing a webpage with a map that I've created.I'm trying to add a marker in the map sending the parameters from C# to a function in the ...
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2answers
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How to transform EPSG:3857 to tile pixel coordinates at zoom factor 0?

I'm creating a Leaflet map with an WebGL overlay (using L.CanvasOverlay) which renders a street network on the GPU. Let's assume I have a point (1497143.62, 6896952.18) in EPSG:3857 and want to ...
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3answers
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Change OpenLayers 3 view center

I'm using OpenLayers 3 to interact with some maps. I first declare my map: map = new ol.Map({ target: 'map', layers: [ new ol.layer.Tile({ ...
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1answer
589 views

MySQL and the ST_IsValid function returns error

I am running MySQL // Percona 5.7 and I added a Polygon to my table: DROP TABLE IF EXISTS `test_table`; CREATE TABLE `test_table` (`uid` int(11) unsigned NOT NULL AUTO_INCREMENT,`geom` geometry NOT ...
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0answers
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CityGML EPSG::4326 but data unit not degree?

I'm very new to GIS. I'm trying to understand 3D city maps in the format of CityGML, as well as extract and identify individual buildings. Currently my coordinate system (SRID) is set as 4326, which ...
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1answer
51 views

Layer renders twice with EPSG:5514 in WMTS OpenLayers

I am trying to create a WMTS layer in OpenLayers with the following properties: Url: http://geoportal.cuzk.cz/WMTS_ORTOFOTO/WMTService.aspx Matrix set: jtsk:epsg:5514 Projection: EPSG:5514 I am ...
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1answer
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Convert EPSG:2263 LiDAR data to EPSG:4326 to use with FSX

I have LiDAR (las) input files in EPSG:2263 (NAD83, NY state plane, feet_US) aquired from https://gis.ny.gov/elevation/ and want to convert those file to EPSG:4326 (WGS84) for use in MS Flight ...