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
700 views

Converting EPSG to D3.js

Given an EPSG projection (say, this Alabama one: http://spatialreference.org/ref/epsg/26729/) How can you take the given WGS84 projection bounds in such a way that you can use them in a D3.js ...
2
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0answers
461 views

EPSG of “Albers equal area conic projection (WGS 1972)”

I am trying to work with a raster I found here: http://geoplaza.vu.nl/data/dataset/continental-scale-quantification-of-landscape-values-using-social-media-data The authors report the spatial ...
1
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1answer
1k views

Missing EPSG Factory

When I using jar and osm file the terminal show: 10:39:29.940 INFO (OpenStreetMapModule.java:171) Building street graph from OSM Feb 14, 2017 10:39:30 AM org.geotools.referencing.factory.epsg....
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0answers
148 views

Geoserver WMS WMTS offset EPSG:3059

How is it possible that Geoserver WMS map works perfectly in GIS software but the same map cached using integrated GeoWebCache using the same coordinate system gives the same map in other location. I ...
6
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2answers
4k views

Converting EPSG:2284 to EPSG:4326 with pyproj

I have some points in EPSG:2284 and I'm trying to convert them to EPSG:4326 using pyproj, however I get weird results. When I go to the spatial reference website I see that there is an endpoint that ...
2
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2answers
565 views

Problem converting EPSG 3035 to EPSG 4326 with GDAL & Python

I have following problem: I want to convert EPSG 3035 coordinates to GPS Latitude & Longitude coordinates (EPSG 4326) via Python. Therefore I'm using GDAL and following Python Code with EPSG ...
2
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2answers
172 views

Determining if specific lon/lat in various coordinate systems?

I'm a newbie in Gis matter and don't want to make it very complex. I want to plot a point somewhere and know it's lon/lat in some coordinate systems indicated by EPSG code. I'm wanting to know if ...
4
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1answer
4k views

leaflet map crs is 3857 but coordinates 4326

I am developing my first leaflet applications. So this is my trial application demo. var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', osm = L.tileLayer(osmUrl, { ...
2
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0answers
151 views

Why is EPSG:4326 projection making trouble with the zoom?

I'm quite cartography illiterate. I implemented an OpenLayers 3 map on my website and everything's working fine except for the zoom in/out. The first time the map loads, I can zoom into any city and ...
2
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0answers
280 views

Display EPSG:3844 ArcGIS WMTS service in OpenLayers: origin axes in wrong order

I'm trying to display a EPSG:3844 WMTS service from an ArcGIS server in OpenLayers 3.20.1. In order for it to be displayed correctly, I need to manually swap the origin coordinates found in the ...
2
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1answer
489 views

What's the difference between EPSG: 3043 and EPSG: 25831?

When I open a layer projected in ArcGIS with EPSG:25831, QGIS detect it as EPSG:3043. Apparently everything is where it is supposed to be, and checking both EPSG:25831 and EPSG:3043 they appear to ...
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0answers
123 views

Convert bbox in meters (stereographic projection)

I need to convert the bbox H-SAF area [25-75°N lat, 25°W-45°E long] in meters in the stereographic projection (EPSG:3413 WGS 84 / NSIDC Polar Stereographic North). How can I solve this?
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1answer
413 views

Reprojecting with ogr2ogr -t_srs does not write AUTHORITY nodes to .prj

(Note: This seems to be the same thing that Mohayemin ran into at "GDAL does not recognize EPSG code of a shapefilefile reprojected by ogr2ogr", but the comment there that "GDAL is writing out EPSG:...
-1
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1answer
329 views

OpenLayers 3: get EPSG code of defined vector

The following code adds a GeoJSON from a string to my map. As long as the coordinate system of the added layer and the one of the map coincide this works fine. var s = '{"type": "FeatureCollection","...
2
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0answers
332 views

GeoServer GeoPackage plugin fault

I am having difficulty adding a .gpkg raster store to geoserver with the GeoPackage community plugin installed. I can successfully accomplish .gpkg in and out with EPSG:4326. Using EPSG:3857 I can ...
1
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1answer
2k views

Converting state plane coordinates to latitude/longitude

I'm trying to convert pairs of x,y coordinates to latitude/longitude using python. The projection is "NAD_1983_HARN_StatePlane_Oregon_North_FIPS_3601_Feet_Intl" and a sample x,y pair is 7625659, ...
4
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1answer
3k 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 ...
1
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1answer
162 views

Identifying reference systems from coordinates in WKT string?

I have these polygons in WKT string that represent an area in Florence (Italy), but I don't know what reference system coordinate is. First polygon POLYGON((11.262552738189697 43.77163613277955,11....
2
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1answer
179 views

ArcMap doesn't recognize projected coordinate system in geotiff

I am working on a NASA grant to produce gridded satellite passive microwave data products. Our products are formatted in netCDF-CF and we are producing geotiffs of data layers using gdal_translate. ...
1
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1answer
258 views

How to save results of OGRSpatialReference::AutoIdentifyEPSG()

Not that I see the need to programmatically mass-convert shapefiles, but there must be a way to store the EPSG authority in a converted and auto-identified shapefile. My little C++ program can use ...
2
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1answer
278 views

Getting EPSG from Feature Classes of Geodatabase?

Where can I find the EPSG code of a Feature Class?
1
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1answer
346 views

Converting prj to EPSG code?

I am a complete novice. I have the following .prj file: PROJCS["EO_Lambert_Conformal_Conic",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]...
3
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1answer
93 views

Which EPSG setting when georeferencing German maps from 1880s?

I'm trying to georeference a map from 1881 that was created by the Preußische Landesaufnahme. When using Gauß-Krüger (EPSG:31467), my map section always ends up way too far in the east. I've found out ...
1
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1answer
257 views

Transforming multiple images from projection EPSG:3857 to EPSG:21781 [duplicate]

I have several images in EPSG:3857 which are originally from the Google maps API. I have a map layer which is based on OpenLayers v3.6 and it is in EPSG:21781. I would like to project the images from ...
3
votes
1answer
365 views

How can I use GK + ETRS89 projected data in QGIS or Proj?

I got a dataset of Hamburg, Germany in so called "Lagestatus 320" (LS320). The metadata describes it as "Gauss-Krueger mit ETRS89 [Lagestatus 320]". Coordinates are like 3565575.3,5936627.0, they are ...
3
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1answer
300 views

Using gdalwarp with a crs which doesn't have an EPSG number

I need to project a raster from EPSG:32642 to this crs. It is a relatively new addition to the EPSG registry and the EPSG number is not yet in gdal (at least in my version: 1.11.3): steph@steph-...
4
votes
1answer
224 views

Reproject shapefile in QGIS using “save as” return weird result

I need to reproject a shapefile from a geographic cooridante system (ESPG: 4326) to a projected coordinate system (EPSG: 54004). Obviously something went wrong but I'm not sure what.
4
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1answer
1k views

How to convert gml:pos to latitude and longitude?

I'm trying to figure out the latitude and longitude of rail stations that are contained in this WMS feature list. I'm completely new to the GIS field, so please forgive me if I use the wrong terms ...
0
votes
1answer
491 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 ...
1
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1answer
211 views

OpenLayers 3 incorrectly transforms coordinates into EPSG:900913 [closed]

I've encountered a problem trying to transform coordinates from lat-lon (WGS84) format to EPSG:900913. Consider the following code: var olCoordinates = ol.proj.transform([55.75, 37.61], "WGS84", "...
6
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1answer
1k views

How to find the actual projection name (code) in a PROJCS text data?

Given a PROJCS data PROJCS["unnamed", GEOGCS["WGS 84", DATUM["WGS_1984", SPHEROID["WGS 84",6378137,298.257223560493, AUTHORITY["EPSG","7030"]], ...
12
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2answers
685 views

What's the meaning of numbers before an EPSG code, e.g. the 6.9 in EPSG:6.9:4326?

A WFS server I was using offered boundaries data in the following EPSG codes: EPSG:6.9:27700 EPSG:6.9:4326 ...defined in the XML giveCapabilities spec like this: <DefaultCRS>urn:ogc:def:crs:...
4
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2answers
2k views

Projection: conversion of coordinate pairs in Python

Google Translated I am using QGIS and wish to automate the export of a map (an existing project) to which I add a vector layer (representing a construction zone) in pdf format. The problem is: The ...
2
votes
1answer
777 views

Converting UTM coordinates to WGS 84

I know the coordinates below are in UTM 36N (due to the EPSG code), and I can convert them with several websites online to wgs 84 and see them in Google Maps. However, been helplessly looking the ...
1
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1answer
403 views

Leaflet Tiling with epsg4326?

i'm using leaflet to render a map on my site. The problem is, i use mongoDB to perform some geospatial queries serverside, which use as standard the infamous epsg4326. It appears that on leaflet ...
1
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2answers
839 views

projection from epsg:4326 to epsg:4258

I'm looking for projection functions to convert coordinates in 4326 to coordinates in 4258 and viceversa. Any suggestions?
2
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2answers
8k views

Leaflet, changing base map CRS

So i am using leaflet in order to create my project, which is a world map that certain layers would be add on top of it. I am wondering whether I should change the CRS property of the map object, ...
4
votes
1answer
204 views

Differences in the longitude and latitude between a LiDAR DSM and an optical image

I've downloaded the UK's LiDAR elevation data (see below) in laz format for a specific region (Tewkesbury) from: http://environment.data.gov.uk/ds/survey#/download From that, a DSM (Digital Surface ...
3
votes
1answer
254 views

Default transformation for a EPSG CRS

Is there any way to know which transformation, from available, is the default transformation for a CRS in the EPSG database? For example, EPSG:4230 has more than 30 transformation available and ...
2
votes
1answer
64 views

Corners of GeoTiff's not lining up after doing gdalwarp EPSG:3006 -> EPSG:4326

I have some GeoTiff's that are in EPSG:3006 (SWEREF99 TM) atm, and I'm trying to convert them to EPSG:4326 (WGS84) because some other software needs it in this projection. But after doing the ...
9
votes
1answer
544 views

Why isn't QGIS detecting CRS from .prj file?

I have a number of 1 km hexagonal grids that cover various counties in the United States in a postgreSQL/postGIS database. Each grid has the CRS EPSG:3857, and the counties layer has EPSG:3857. When ...
0
votes
1answer
461 views

How to know what is the correct ESPG code for clipping Landsat imagery?

This is somewhat related to a previous question of mine. My goal here is to clip Landsat imagery to a rectangle that I've defined by four points of latitude and longitude in WGS84. To do this, I've ...
5
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2answers
5k views

What is the proj4string of the Lambert azimuthal equal-area projection?

Shapefiles of European data are available on the Eurostat website. I have loaded the NUTS_2013_60M_SH Shapefile in R with the command; europeRG <- readOGR(dsn = patheurope, layer = "...
4
votes
2answers
311 views

What is the epsg code of eurostat maps?

Shape files of Europe maps are available on the Eurostat website. I downloaded NUTS_2013_60M_SH. The tool (readOGR from the R package Rgdal) I use to load the map shows the following proj4string: "+...
7
votes
1answer
1k views

How to choose the EPSG projection?

Up until now for reprojection of my WGS84 vector (.shp) and raster files (.tif), I have been using EPSG projections based on vector/raster central point's UTM zone. But what happens if the envelope-...
5
votes
1answer
518 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 ...
1
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0answers
117 views

Determining EPSG code for coordinate transformation using ArcPy? [closed]

I am trying to write a Python script which will identify the EPSG code for the coordinate transformation. I am familiar with the dataFrame.geographicTransformations function, however this returns a ...
3
votes
1answer
1k views

How to quickly change EPSG in QGIS (Openlayers; 4326 vs. 3857)

I'm using Qgis 2.12.2-Lyon on Ubuntu 14.04 LTS. With the OpenLayers plugin I added some OpenLayers to my Canvas. I usually use the WGS 84 (EPSG:4326) projection for my project, but I have to switch ...
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0answers
651 views

In OpenLayers 3, transformExtent to EPSG:8155 produces error

I'm trying to get the extent of a map using OpenLayers 3, so that I can use it in a CQL filter to limit the area of the WMS request to the area currently shown in the map extent. To do this, I have to ...
1
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0answers
151 views

Projection Issues - OpenLayers / MapServer / NAD83 State Plane FT

I am having projection issues with OpenLayers version 2.13 with MapServer and the Proj4 library. Pulling layers in NAD83 State Plane Feet projections on top of an OSM or MapQuest Base Map in Google ...