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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27 views

ogr2ogr: projection issue when converting a GeoJson to a Shapefile

I want to convert a GeoJSON into a shapefile with the ogr2ogr command using the Spyder Python interpreter. args = ['ogr2ogr', '-f', 'ESRI Shapefile', SHP_FILENAME, GEOJSON_FILENAME] The output ...
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Pdal and Earth Curvature/which EPSG

I am attempting to combine Lidar data that we capture using a scanner (which is real-world accurate) and USGS Lidar data. I am currently using Pdal and Entwine to download and reproject the section of ...
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Convert coordinates from EPSG 4326 to EPSG 28992 in PostGIS

I imported a CSV file with coordinates into a PostGIS table. This table contains a column "latitude" and a column "longitude". The coordinates in these columns are in EPSG:4326. ...
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Dealing with data of regions situated in two UTM zones using GDAL

I must work with a projection, in order to execute the intended geometric operations. I'm looking for a projection that could cover an area of up to 200km X 200km. I'm aware of some local projections, ...
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Finding an EPSG code for a LiDAR file given only its metadata

I am working with v1.4 .las files from El Paso County, CO, that individually appear without any reference to their projections (none that R sees, anyway). From the metadata I can see the following ...
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geopandas.to_crs(epsg=3395) does not work in jupyter notebook. it seems some mismatch with pyproj & geopandas versions?

After importing geopandas df , with epsg =4326, I tried to re project it to epsg =3395 using gdf.to_crs(epsg =3395) in jupyter python note book. I got error "RuntimeError: b'no arguments in ...
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Finding out whether an EPSG code is geographic or projected in Python

Can one tell that from the number of digits or a similar rule?
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What type of coordinates are these and how to transform them to standard WGS84 (EPSG:4326)? [duplicate]

I have the coordinates : North = 861597.4129 , East = 1063313.808 All I know is that they should belong somewhere in the city of Cali, Colombia. I have tried different Colombian EPSG codes but I still ...
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How to reproject .las file from known EPSG (6499) to a custom coordinate system with WKT?

I am trying to use PDAL (filters.reprojection) to convert a .las file from a known EPSG:6499 to a custom projection. Can I just put my WKT string into the pipline? "type":"filters....
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EPSG:3857 to 4326 - incorrect geometry

I need to get simplified boundaries of all countries with some buffer around them (20 km). I am using QGIS, I converted my country polygons vector layer from 4326 to 3857, set buffer, used simplify ...
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Creating new mapset with Python and EPSG 4326 (Invalid north field 1N)

I am using grass 7.8. I have been trying to create a new location and then a new mapset in python. It works fine for any EPSG code except 4326. With EPSG 4326, when I try simple commands (like ...
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Mapping lat/lon coordinate pairs to a given EPSG:4326 projected cartesian coordinate system

I want to find out the timezone a GPX track is in by looking up the first coordinate pair. I took the shapefile from Timezone Boundary Builder and created a PNG image via qgis from it (using the ...
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Difference between transformation values in Proj4 npm and epsg.io

The values are not matching with other online tools for the conversion using Proj string and in the case of wkt format, the conversion using -ive value doesn't match. While using WKT string in epsg ...
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GeoJSON EPSG::3857 to normal format (example normal format for Mapbox studio) [duplicate]

I'm really a novice in the field of the Geographic Information Systems (not to say that I don't know anything about it), but I retrieve via a WFS service some GeoJSON data. The problem is when I want ...
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“init” CRS vs regular CRS in GeoPandas

I have a shapefile which I read in via import geopandas as gpd shapes_df = gpd.read_file(shp_f) print(shapes_df.crs) The output was {'init': 'epsg:3857'} I then reprojected via shapes_df = shapes_df....
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How can one transform XY and Z coordinates to another coordinate system?

How can we convert X ,Y and Z values from one coordinate system to another coordinate system using node js or any other similar packages or equations without directly using the convertor tools ...
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Data from EPSG dataset in proj format

In the EPSG dataset obtained from https://epsg.org/home.html where to find the values to fill up the field of +proj =" or +zone= " (to be in proj.4 string)from the database itself? Will the ...
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Wrong coordinates in layout

My map is not exporting the right coordinates. As you can see it makes a local sistem. It should be around 46 N , 20 E. Do you have any idea what am I doing wrong?
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Visualizing resource dependencies and relationships underlying EPSG CRS

I'll go straight to the point; I remember long ago that I was quite shocked the first time I discovered that EPSG:4326 was kind of an "umbrella" definition on top of many others, which often ...
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QGIS CRS for Aruba

I am trying to open geodata from Aruba in the projection "Transverse Mercator Aruba". Does anyone know what EPSG this is? How can I view this in QGIS in the following projection: PROJCS[&...
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90 views

Euclidean distance units for WGS84 files?

I have a lake raster file and I want to calculate the euclidean distance. My raster file is in EPSG 4326 and I use the r.grow.distance from GRASS GIS through QGIS plugins. What are the units from the ...
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writeRaster() not preserving EPSG information

I need to upload some rasters in .tif format to a geoserver that requires EPSG information to correctly display the data. When I assign an EPSG using crs() to a raster that is in memory, the WKT ...
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EPSG for TanDEM-X Ellipsoid

I have TanDEM-x data and according to the documentation: "The elevation values represent the ellipsoidal heights relative to the WGS84 ellipsoid in the WGS84-G1150 datum." I would like to ...
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How to find a shapefile's correct EPSG code

My company uses inhouse software in order to survey and we need to manually specify an EPSG code in order to set up a project and then add shapefiles. However, there is some confusion on my part ...
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Understanding EPSG in WKT

I notice several EPSG codes in one WKT. At the first glance it almost is non-intuitive to see so many EPSG codes linked to a single EPSG. Can someone explain each line of the following WKTs for EPSG:...
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Where do I find CRS axis names?

When using the SUBSETTINGCRS argument of a WCS query, one needs to provide the axis labels in the subsetting CRS. This answer to GeoServer does not work WCS parameters "subsettingcrs" and &...
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Leaflet with EPSG:3765; GridLayer.js:661 Uncaught Error: Attempted to load an infinite number of tiles

I am not sure about Leaflet 1.7 possibility to show layers in EPSG:3765. Not sure because from Leaflet docs it is not possible but I found something like Proj4Leaflet and it looks like it can... I get ...
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Cannot set EPSG code in LAS - lidR

I'm trying to reproject a LAZ file from EPSG 2226 to EPSG 6418. The reprojection works fine (I followed this: Can I re-project an LAS file in LidR) but I cannot store the information onto the LAS ...
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69 views

Does OSGB36 (EPSG:27700) preserve area?

What I mean is, if I have a map which uses the OSGB36 (or EPSG:27700) projection, and I draw two areas (let's say polygons) on my map which cover the same area on the map, does this mean that the real ...
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Is there an alternative to prj2epsg.org?

In the past, we used prj2espg.org to find the srid/espg code from .prj file of shapefiles in order to import them in PostgreSQL. Unfortunately, the website seems to be down since November 2019 (...
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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? [closed]

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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77 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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206 views

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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207 views

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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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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56 views

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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82 views

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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