A spatial reference system (SRS) or coordinate reference system (CRS) is a coordinate-based local, regional or global system used to locate geographical entities.

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Planar CRS for raster and vector layers

I want to work with a planar coordinate system, and as far as I know QGIS automatically puts me in a cartesian plan if I don't set up a CRS (Coordinate Reference System) for my project. That is ...
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Layers change position when saving to another data format

When I save my map after using the composer, the layers move a little bit on the images of the OpenLayers plugin. It is like they ignore the CRS option. Do you have an idea?
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Question about BNG coordinate systems

I'm historically a user of MapInfo Professional but have recently started using FME and have been talked into now testing out a copy of QGIS. The main problem I've come across is that the coordinate ...
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49 views

What is the closest CRS to “Meridiano de Greenwich”

I have a 1906 scanned map that I am trying to georeference in QGIS for Mac. The map has French and English lat-long, indicating them as either "Meridiano de Greenwich" or "Meridiano de Paris." I would ...
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40 views

Importing data into a project with a custom CRS incorrectly projected

I created a custom CRS for a project I am working on. I then started a new project, set to my custom CRS and turn on "on the fly" transformation. I import Rail data that I know is in my custom CRS, ...
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47 views

Can you create a CRS of superseded NSW Datum

I want to use a superseded projection (NSW integrated survey datum - referred to as ISG) because my main client utilises it. The projection is based on AGD66. We regularly receive survey files in this ...
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50 views

Coordinate mix up

I am working on a basic map, pulling coordinates from google earth, converting them to decimal degrees in excel, and then importing them into qgis. I am using qgis 1.8. When converting from degrees, ...
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29 views

QGIS convert attribute table to point shape

I have imported an attribute (whith no spatial information) table from MySQL. Fortuantly it has two colums with Longtitude and latitude taken from google maps. Is it posible to use those values to ...
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changing central meridian in QGIS causes problems [duplicate]

I want to change the central meridian of my world map (WGS84) in QGIS from 0 to -80. The problem is that this distorts the map every time I try it. This is what I do: go to Settings/Custom CRS ...
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15 views

Can't save custom CRS in QGIS 2.0.1

I am trying to enter a custom CRS in QGIS 2.0.1 but when I enter the proj4 parameters and hit okay they are changed. There is no save open in 2.0.1 which seemed to be the problem for many people ...
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66 views

Add custom CRS - 2.2.0 Valmiera

i've builded a custom proj.4 library, tested it by command line (proj and cs2cs) and with postgres/postgis. All works fine. Now i'm trying to make the same with Qgis 2.2.0. I've replaced the original ...
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17 views

QGis polygon to points different CRS problems

I'm trying to join the values from polygons onto a grid of points. I had this problem solved here by @Underdark , however a few layers weren't working. It seemed they were all British National Grid ...
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53 views

Get list of CRS in QGIS by python?

It is possible to get list/dictionary of "Recently used coordinate reference system" from QGIS by python? Or get list of all "Coordinate reference systems of the world" also from QGIS by python.
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27 views

QGIS layer only displays when I uncheck on-the-fly transformation

I have a layer that covers the stats of Indiana that has the following Layer SRS: +proj=utm +zone=16 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs It will not display unless I uncheck the ...
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101 views

What projection system for the entire world should I use to calculate distances ArcGis?

I've got two point shapefiles (A and B) that represent features all over the world, and I'm using Near (Analysis Tools-Proximity). I'm trying to calculate the distances between the points in layer A ...
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100 views

In Ogr2OGR: what is SRS?

I am trying to understand this command: ogr2ogr -f "MapInfo File" original.tab wgs84.shp -s_srs EPSG:27700 -t_srs EPSG:4326 I don't understand the s_srs and t_srs paramaters. The help file says ...
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48 views

Changing CRS for basemap from OpenLayers plugin

Relatively new to QGIS here and I haven't been able to find this question answered yet. I'm working on plotting data from NYC (Queens, specifically) and I would like to overlay my heatmap on a basemap ...
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63 views

How ensure data put into PostGIS gets proper CRS attached?

I recently had an intractable problem that we finally traced back to the fact that some points in a PostGIS table had a CRS associated with them and others did not. This resulted in some points being ...
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102 views

Leaflet setView with non lat/long CRS

Is it possible to use setView when using an alternative CRS? var map = L.map('map',{crs: L.CRS.EPSG26915}).setView([4970081,477018], 13); // Returns: Uncaught TypeError: Cannot call method ...
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43 views

What is the CRS for France

Has anyone any idea what the CRS is for France? I am new to QGIS (moving over from using Arcgis) and trying to find out basics. I have found a huge list beginning NTF (Paris) but wonder which one to ...
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3answers
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What are the differences between 81989 and 27700 CRS for the British National Grid?

We are using applying Oracle Spatial to run point in polygon queries in Great Britain using Ordnance Survey MasterMap and point data. MasterMap is on British National Grid (BNG) and has the ...
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28 views

How to derive GetFeature URL from capabilities document?

Given this capabilities definition how can I compose a GetFeature request that downloads the actual geodata? I came up with the following URL refering to WFS 2.0.0: ...
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How do I set a CRS when it isn't listed in QGIS? (Mac, not PC)

I want to work with a shapefile that is in a Coordinate System that I can't locate in QGIS for Mac. When I load this shapefile data, it shows up fine, on-the-fly has generated the CRS data most likely ...
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91 views

Open Layers and OSGB 1936 (CRS 27700)

I've been working with loads of shapefiles projected according to OSGB 1936 (CRS 27700). THe project CRS is set to 27700 and "On the fly reprojection" to 27700 is set (I keep this as a default as I ...
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151 views

Pseudo-Mercator projection with Decimal Degrees?

Hope this isn't a duplicate, did some searching but none seemed quite the same. Projection I want: WGS84/Pseudo-mercator. Selected. Looks Great. Canvas units I want: Decimal Degress. Selected. ...
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How do I change an existing srs in QGis?

I am showing postgis data with srid 28992 (Amersfoort / RD New). But when I plot the geospatial data on a map (with openlayers plugin), the data is shown a hunderd meters off because the datum shift ...
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99 views

Convert data to another Coordinate Reference System

Assuming I've a point like this : POINT (751318 9760879) This point is in EPSG:27700 coordinate reference system. How do I convert the point to display in a map with EPSG3857 coordinate ...
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112 views

QGIS DXF file projection match

I need to use this file on a map but I am not able to match the projection with the others I have, primarily data downloaded from OSM (city of Boston). I read many articles, I have repeatedly tried to ...
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27 views

WGS84 CRS without elipsoid

What's the difference between using CRS defined as +proj=longlat +datum=WGS84 +no_defs and a CRS defined as +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs Will using one or the other pse any ...
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62 views

towgs Definition for European Datum 1950

I am new to all things GIS so apologies for a basic questions. I am trying to specify the CRS of a climatic raster layer in R. It is an equal area projection based on Europe Equidistant Conic and the ...
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30 views

Description CRS EPSG:6372

does someone know where could I find a description of CRS EPSG:6372. I searched in the EPSG page but seem not to find something that quick.. Any help would be really appreciated. Regards!
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Coordinate points don't show on correct location in the open layers plugin Qgis

I know there are several questions concerning the open layers plugin and CRS's. I tried several things, but none of it solved my problem so far. For a rural area in Nepal a little healthcentre wants ...
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Why does my gpx layer go to the wrong spot even if they have the same CRS?

Help! I am a QGIS beginner with a big problem! I am trying to load a gpx file from Garmin into my map. The project CRS is WGS 84, and the incoming data is in CRS WGS 84. When I look at the bottom of ...
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77 views

Problem changing CRS to enable clip function

I have two layers, one point file and one polygon. The point file is in WGS 84 and polygon in NAD83-UTM10. The project CRS is NAD83-UTM10. They project fine with on-the-fly projection turned on. I ...
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49 views

My Coordinate Reference System listing is in the wrong language

I just installed QGIS Desktop 2.0.1 on a desktop (Windows 8-64). All the menus are in English-US (as they should be), but the CRS listings -- when I try to change them for a project are a layer -- ...
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45 views

escape the cut of western/eastern hemispheres

I am very new to QGIS and GIS in general, so I am struggling with the following: when I do a map of Russia, I get the part next to Alaska being drawn far left from Europe, as it lies behind 180o... I ...
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110 views

Qgis OSM and layer projection problem

I am using QGIS 2.1.0, and trying to import my vector layer(parcels) with OpenStreetMap layer. My vector layer (parcels) use EPSG 31277 coordinate system. This is the definition for EPSG 31277: ...
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50 views

Custom tiles in local CRS

I want to achieve the following: Create an OpenLayers map, that runs totally in a local CRS. The basic layer would be a raster tile layer. The tiles will be generated by us once for each project ...
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Program crashes when trying to do intersection.

I'm trying to get the intersection between a highways shapefile and some states in Mexico but it seems that the program always crashes. I attach the images of what I'm trying to do and the error that ...
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2answers
286 views

QGIS 2.0.1. missing Google Mercator CRS

I've downloaded the latest QGIS version and I cannot add basemap. I installed OpenLayers plugin and while adding any map from list QGIS crashes. I tried to enable Google Mercator CRS first, yet it's ...
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55 views

How to get projected centroids in QGIS?

I am trying to get a centroid for several polygons on a global scale, in a way that it would correctly represent the common centre of all the polygons, taking Earth's curvature into account. The ...
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92 views

Set projection/CRS in map and shapefile to produce buffer

I simply want to create a buffer of a specific size, around a single point. When I create a buffer it uses degrees/ or radians, or whatever, and the buffer is created that covers the whole screen. I ...
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73 views

How do I Fix Projection Issues in QGIS

I have some exiting shape files that supposedly have a CRS of OSGEO:41001. If I import new data, and set the CRS to OSGEO:41001 they do not align. If I change the CRS of the new layers to ...
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35 views

Questions about EPSG:6372

I'm using QGIS 1.8.0 and as CRS EPSG:6372 a projection for Mexico, defined by the Instituto Nacional de Estadística y Geografía (INEGI). I have the following questions, I hope you can help me out. ...
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64 views

QGIS layers don't overlay after trying 'enable on the fly' and CRS settings

I know there are already many questions about this topic, but none of the answers helped me so far. I have two layers I want to overlay in QGIS. One of them is an Excell file with the coordinates of ...
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95 views

QGIS display does not reflect projection

I have slight experience with ArcGIS, but am new to QGIS. I'm trying to set the projection of my map, and I understand that this is done by altering the CRS (coordinate reference system) of each ...
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3answers
129 views

Can someone recognize the CRS?

I'm using QGIS 1.8.0 and have some shapefiles with a "User Defined CRS" which I don't recognize. Is anyone able to recognize it? Here is an image of the settings I see on QGIS. Thanks in advance. ...
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152 views

Why do my maps exported in WGS84 have large coordinates?

I'm using QGIS to export map layers as GeoJSON for use in Leaflet. The map file CRS is WGS84(EPSG4326) and I'm exporting it as such. The issue is the exported coordinates are still too large: [ ...
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how to find angle between two points in QGIS? [duplicate]

I want to find angle between two points(LatLong) in QGIS. For example Point A = 80.2065,13.0876 Point B = 80.2064,13.0874 My CRS is WGS84 EPSG : 4326. I am trying to provide driving direction this ...
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Does anyone know how to make new CRS to reproject some old plans?

I need to reproject some old Cadastral plans, but I can't find any appropriate CRS on web. They are in old Hungarian System (Budapest tangent plane stereographic projection) which used in late XIX ...