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Questions tagged [coordinate-system]

A reference framework consisting of a set of points, lines, and/or surfaces, and a set of rules, used to define the positions of points in space in either two or three dimensions.

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Projecting Microstation .dgn that has no coordinate system

I have a set of .dgn drawings that have been sent to me from a client. All of which were never assigned to a coordinate system upon creating them. I am attempting to assign a coordinate system to ...
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1answer
21 views

How to put coordinates on the grid using WGS 84 CRS

How to put coordinates on grid using WGS 84 as the CRS.
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8 views

qField Coordinate Reference System

Does anyone know how location services on your mobile device compare to a chosen coordinate system set in the qGIS project? I am wondering how to improve the accuracy of my device compared to the ...
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1answer
15 views

How to spatially reference data based on the address of the features

My initial aim was to make a map in ArcMap where the traffic volume of Austria's highway is displayed. I couldn't find any data for that. Instead I found data for Vienna. It is a shp-file that ...
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QGIS 3.4.3 - Scale bar not accurate

I'm a fairly new user to QGIS and was trying to generate a map of Iceland. However my grid scales are not matching up. The base map I'm using is Esri National Geographic which uses crs- EPSG:3857 - ...
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1answer
36 views

QGIS: Placing points relative to a specific coordinate

I have some delimited-text point data that is encoded as X,Y positions relative to a given coordinate. So, for example, 1 5 represents a point 1 meter east, five meters north of the origin coordinate. ...
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29 views

Erasing spatial reference from GeoTIFF raster using ArcGIS Desktop? [duplicate]

I am wondering is there any way to remove spatial reference from Geotif file, a composite of WorldView-3 8 bands in single Geotif file on projected coordinate system i.e. UTM. I guess spatial ...
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1answer
9 views

Unable to transform features into projection, Google Earth Engine

I have the following code with which I try to export the MODIS NDVI index. I have rescaled the collection with the appropriate scale factor and code runs without errors. When I try though to download ...
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1answer
11 views

GeoServer on cascading WMTS sets wrong CRS

I have one GeoServer 2.12.5 with a layer which CRS is set to EPSG:3857, and another GeoServer 2.14.2 where I want to cascade WMTS from the first one. But when I add this layer from cascaded source its ...
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1answer
36 views

Both layers are in same CRS but in a different place [duplicate]

I'm facing a problem with QGIS and have no clue what I'm doing wrong here. I've tried everything I know of. I have polygon layer in CRS 2180. I add another layer that should be overlapping perfectly -...
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23 views

How to retrieve GIS data in Multiple Orthophoto at point level

I have been using a python script that can read Data from Orthophoto(*.tiff) of size 300Mb-2Gb. But this is taking 32s per request of lat-long, which is not ok. I have different Orthophotos with ...
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1answer
36 views

Which datum transformation should I use when projecting from 4326 to 53008 in ArcMap?

I have a polygon shapefile which is on WGS84 and I want to re-project it on EPSG:53008 (World Sinusoidal). When I'm trying to do it either by 'Save as' or by 'Data management tool - Project" it says ...
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1answer
31 views

QGIS 3 Scale Bar Should Print at 1" But Does Not

In QGIS 3.4, I am using the Print Layout to print some UTM lines with scale bars. My goal is to make a PDF of a map that is at 1:63360 or 1 inch to the mile. When I print the PDF, the mile Scale Bar ...
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33 views

Using File Projection in QGIS?

I am using QGIS AND struggling with setting projections. I am attempting to reproject all of my files that I am accumulating into NAD83-UTMzone13 utilizing the reprojection tool. The tool appears to ...
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25 views

ntv2 datum transformations-problem on file output

I am working with qgis 2.18.27 I have installed ntv2 datum transformations and it worked fine, but yesterday it didn't work and i am not finding the way to resolve the issue (explained below) I am ...
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50 views

What is geometry(4326), and can you do Cartesian calculations with unprojected ellipsoidal coordinates?

I know Geography(4326) is an unbounded, and unprojected, and covers the entire world with ellipsoidal coordinates. I get that the math on this system is done on a spheroid. I also get that with a ...
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26 views

Graphical error while reprojecting Shapefile with QGIS [duplicate]

I'm trying to retroject Natural Earth's Shapefile of the world (Admin 0 – Countries on this page: https://www.naturalearthdata.com/downloads/10m-cultural-vectors/). Here's the original Shapefile in ...
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2answers
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Reproject all shapefiles in same folder in same projection with raster?

I have 4 shapefiles in the same folder names like that (1996.shp, 2000.shp, 2006.shp, 2014.shp) and one raster. I need to reproject all shapfiles in the same projection (4326) of raster, but I do it ...
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1answer
20 views

Data sources are missing spatial reference data

I am trying to add a shapefile to a mxd file in =ArcGIS 10.6. When I do, I get the following error message: The polygon is always completely off the map. I have tried to use the define projection ...
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14 views

Georeferenced Rasters from QGIS to ESRI: coordinate system problem

I have georeferenced rasters in QGIS (2.18). We assigned a coordinate system to the image: EPSG 26917, which is NAD83 Zone 17N. When i then bring this image into ESRI, the coordinate system is ...
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10 views

Wrong projection used in Pathfinder

I am having issues with coordinate systems in post processing. Does anyone have a recommendation of videos to watch or online classes that can help me improve on this? This is my current issue: Data ...
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1answer
45 views

Circle is ellipse using Open Street Map

Currently I have a problem while developing an app - I use Open Street Map and draw a Circle and pass it to a Python backend, as central point and point on the perimeter on the Circle. Next I am ...
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1answer
15 views

Using Plugin > Map Creator > Set Layer CRS

I am using map creator and I would like to permanently set the layer CRS value. I place multiple maps within one project on QGIS, and I have to manually set the CRS value each time a new layer is ...
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3answers
96 views

Why is there a transformation shift/distortion of ~1.5km in OpenLayers 5.3.0 going from EPSG:4326 to EPSG:3857?

I have two features in plain WKT format, the source coordinates being in standard EPSG:4326 projection. I use these features to run some intersection operations, and I'm troubled by the fact that in ...
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17 views

How to set correct geo information on pleiades images with RPC model?

Now I have pleiades raster (img.tif) and a RPC model (rpc.XML). In the rpc.XML, there are the following lines which can be used to reset geo information. <RFM_Validity> <...
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20 views

Where have all the projected national CRSs gone in QGIS 3.4.3?

I have been working with different geographic projections in QGIS 3.4.3. I cannot find any Australian national geographic projections, such as GDA94Z55 in the new version. They were there in QGIS 3.4....
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39 views

Strange behaviour viewing world map with EPSG:4326

I'm trying to visualise/convert EPSG:3857 map tiles to EPSG:4326, but am experiencing strange behavior in that I don't think the most zoomed out view of the world is using the correct CRS/Auth ID. ...
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1answer
29 views

Projecting latitude/longitude coordinates to Cartesian?

Let's say I have a square whose vertices are defined by coordinates in latitude/longitude format. I want to represent this square (and which ever shapes it contains, also defined as latitude/longitude)...
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1answer
27 views

Projecting gtiff data using GDAL and Python?

I have a tile data and I would like to transform the data to a gtiff data with georeference information via gdal and python. The tile is the quadtree tile with quad key 1321222320321122. The left ...
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0answers
19 views

Projection of districts looks scattered?

I am fairly new to ArcGIS Desktop and I have found that my project looks fairly scattered. When I look at the data, all the locations are there but the projection is not right. For instance this ...
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1answer
46 views

Getting (X,Y) projected coordinates of point instead of its longitude and latitude in ArcPy?

I am reading a shapefile through ArcPy. The shapefile has both geographical coordinate system and projected coordinate system. When I try to get the coordinates of a point geometry in the shapefile, ...
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How to shift set of points, which represents surface in 3D, by constant distance perpendicular to surface? [closed]

I am trying to shift the points, which represents surface in 3D, to create a new surface on top of the old one. I have the following data sets surface points (format: long, lat, radius) and dip, ...
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2answers
61 views

Creating generic coordinate system in QGIS

So I'm new to QGIS (3.4) and haven't touched any mapping software in 15 or more years. I'm slowly finding my way around but I'm currently struggling to create a generic coordinate system for a map ...
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Rasterio CLI warping multiple rasters like another raster in all minus one feature

I'm writing a bash script to warp all the rasters in a specific directory to match another raster. I'd like to warp all these rasters iteratively in to match the other raster in all was except shape ...
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1answer
46 views

CRS MapInfo to QGIS

I have this projection from MapInfo : "TM77 - Efate", 8, 14, 7,168.26174486, -17.68174486, 1.000007294, 14845.106, 17541.065 I'd like to import this into QGIS but I have know idea of the parameters ...
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1answer
27 views

Local ENU point of interest to ECEF

I have a local ENU coordinate system on the surface of the Earth (similar to this question: GPS coordinates to XYZ on relative grid). I know the lat,lon,alt of the local ENU origin, and thus I can ...
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Change coordinate system of image exif data

I just started using Pix4D mapper and straight away ran into the problem that the flight data is in WGS 84 and the GCPs are in Gauss Krüger 3. The pix4d support suggested to Transform the image ...
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0answers
55 views

Loading CSV as a GIS layer into QGIS 3.4 not possible with certain coordinate reference systems

I tried multiple times to load a CSV (CRS: EPSG 4647) into QGIS 3.4. While it works without problems in QGIS 2.x versions, there was no success loading it into QGIS 3.4 ('QGIS Madeira'). Do you have ...
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2answers
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Converting Google Maps lat long to EPSG:6706

I'm sending a WMS GetFeatureInfo() request, but there is something wrong because the returned info does not appropriate a clicked point. I suspect that the error is in the BBOX parameter of the ...
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1answer
39 views

Decimal degree coordinates plotting incorrectly on basemap in ArcMap

I'm trying to plot some GPS coordinates onto the World Light Gray Canvas basemap, but they are not showing up near the correct location (Ecuador). I uploaded a shapefile for Ecuador which did show up ...
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0answers
71 views

Calculating centre of city? [closed]

A lot of career websites allow you to select jobs from within a radius of your chosen location. Since cities and towns can be considered irregular in shape, sprawling in the definition (do you ...
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1answer
20 views

CRS conversion using Lambert Azimuthal Equal Area project goes wrong for LAEA EUROPE using C#

When I try convert Lat Long from shape file using Dotspatial for Europe LAEA and it gives null values for whole europe region, It is a custom CRS provided by client I have used Dotspatial and tried ...
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1answer
15 views

GeoTools correct use of ReprojectingFeatureCollection

I have trouble understanding the use of the function ReprojectingFeatureCollection. Here is my code: try { Double buffer = 500.0; String attributeBuffer = ""; ...
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1answer
28 views

How to ensure screenshot from Bing Aerial matches QGIS Bing Satellite?

I am looking to work from a screenshot of Bing Aerial that is georeferenced in relation to Bing Satellite from the QuickMapServices plugin in QGIS 3.4.3. I have matched the scale from the Bing ...
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0answers
23 views

How can I sample points from images mosaic in Google Earth Engine

Rodrigo E. Principe did a great job for Mosaicking a Image Collection by Date (day) in Google Earth Engine (https://code.earthengine.google.com/20ad3c83a17ca27b28640fb922819208) based the code, I ...
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0answers
20 views

Specifying EPSG:31370 CRS in R Leaflet for WMS-service returns blank tiles

I am trying to load historical map tiles from a WMS-server (GetCapabilities) and display them using R Leaflet. Using the default CRS in Leaflet works fine, using e.g.: leaflet() %>% setView(4....
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2answers
35 views

Calculating haversine versus checking latitude and longitude digits after decimal point?

If I want to tell whether 2 points are close to each other, say at proximity of 50 meters, is it OK to compare both numbers up to a certain decimal point, for example the two points: 36.391155, -56....
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0answers
19 views

Creating custom affine projection in ArcGIS Desktop?

I have been trying to decypher all documentation on Projections/Transformations in ArcToolbox to find the way to create a custom affine projection like this one in MapInfo http://support.pitneybowes....
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2answers
37 views

Convert WKT coordinate reference system to PROJ4

I'm currently working on a better support of LAS 1.4 file format in the rlas R package. In LAS 1.4 format the CRS of the point cloud can be stored as a WKT string. For example this is what I read from ...
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2answers
68 views

Changing Leaflet Base CRS using Proj4js

I am trying to change the CRS of a web mapping service in Norway. The projection is EPSG:25832. Here is the WMTS service: https://kartkatalog.geonorge.no/metadata/norge-i-bilder/norge-i-bilder-wmts-...