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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1answer
28 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
39 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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22 views

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", ...
1
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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 ...
3
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1answer
45 views

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
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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2answers
62 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:...
8
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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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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
28 views

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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2answers
419 views

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 ...
2
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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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1answer
28 views

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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0answers
38 views

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
41 views

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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1answer
124 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
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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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
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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60 views

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
206 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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31 views

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, ...
2
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2answers
258 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:...
2
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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 ...
2
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1answer
52 views

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 (...
2
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1answer
72 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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0answers
19 views

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
42 views

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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169 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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0answers
33 views

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 ...
2
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2answers
153 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. ...
0
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1answer
84 views

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 ...
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0answers
51 views

Are Azimuthal Equidistant and ESRI:54032 the same thing?

I am looking at (A): https://proj4.org/operations/projections/aeqd.html#cmdoption-arg-ellps and (B): http://epsg.io/54032 Description: +proj=aeqd +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +ellps=WGS84 +...
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0answers
78 views

Aligning Vector Data with Basemap in QGIS?

I have been having difficulty aligning my vector data (Suitable Polar Bear Den Habitat...) and the streams on the basemap. The vector data is offset slightly eastward. My hypothesis is this is a ...
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0answers
40 views

Defining coordinate system for finding distance in meters [duplicate]

What should I do to find the distance between two very far points? p1 = "POINT(6.2 61.1)" p2 = "POINT(6.1 61.0)" select ST_Distance( ST_Transform(ST_GeomFromWKT('$p1'), 'EPSG:4326', '$epsg'), ...
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1answer
115 views

Get proj4 parameters from EPSG in C++

I have the EPSG number of the projection and I want to use proj4 to get the projection descriptive string (like +proj=lcc +lat_1=49 +lat_2=44 +lat_0=46.5 +lon_0=3 +x_0=700000 +y_0=6600000 +ellps=GRS80 ...
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0answers
25 views

Name of a custom Goode homolosine projection

What is the specific name of this homolosine projection? I see that America is closer to Europe/Africa than in the typical homolosine.
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1answer
72 views

Can ArcMap open shapefiles made by QGIS?

I have created many EPSG shapefiles in QGIS and would like to import them into ArcMap for analyzing. Can ArcMap open shapefiles made using QGIS?
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1answer
56 views

How can I determine the original spatial reference system of GML coordinates when I have their WGS84 equivalent but no EPSG?

I am querying out spatial information from a SQL database that stores locations that users input on a map as GML snippets. See below for an example: <gml:Point xmlns:gml="http://www.opengis.net/...
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1answer
35 views

GeoTools CRS.findTransform suddenly failing

I have a body of users using an Eclipse RCP-based Java desktop app (32-bit JRE1.7, Windows 7) that uses GeoTools for world/screen projection handling. This morning the app has started failing for ...
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2answers
100 views

Converting between coordinate systems but retain visual shape? [closed]

We have some data that is stored in GeoJSON format (using EPSG:4326), but now we want to display the data in the mapbox-gl-js, which only supports EPSG:3857 for display (support for other projections ...
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0answers
118 views

Understanding proj4, epsg and esri *.prj in depth? [closed]

Where can I find a good resource that teaches me 1) about the difference between proj4, EPSG and ESRI *.prj? (Why do several coordinate system definitions exist? When should I use which? How are they ...
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0answers
236 views

Create a valid shapefile with phpmyadmin/Shapefile lib

I'm trying to create a shapefile with the PhpMyAdmin\ShapeFile library. I followed the example in the Github project repository, but I would like to create a shapefile within polygon elements, not ...
2
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0answers
110 views

osm2pgsql import OSM data in EPSG:27700

I am trying to use osm2pgsql on Windows to import OSM data to a PostGIS database. I want to pass the EPSG:27700 via the --proj option as follows: osm2pgsql --proj 27700 <other options not shown>...
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0answers
23 views

WFS how to consume with different coordinate system? [duplicate]

I have a WFS in EPSG:4167. My map view has EPSG:3857. How to make the WFS work on a map view with different coordinates? I used this to define my coordinate system from wfs: import { register } ...
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0answers
456 views

Convert coordinates with Proj4Leaflet from EPSG:25832 to leaflet 3857

I have a wmts server, and try to add this tiles to leaflet with proj4leaflet. My code is here //this one is fine var main = L.tileLayer( 'http://****&zoom={z}&x={x}&y={y}',...
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1answer
154 views

Formulation of CRS (EPSG2438 to EPSG4326) conversion in Excel

I have about 14000 points with coordinates EPSG2438 and want to convert the coordinates into WGS84 (EPSG4326). I want to know that is there a way to make Excel formula to convert these coordinates. In ...