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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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1answer
23 views

projectRaster() result does not have the same nrow and ncol, but has same resolution

I have a land use land cover (lulc) raster in WGS84 coordinate system shown below class : RasterLayer dimensions : 59575, 57541, 3428005075 (nrow, ncol, ncell) resolution : 0.000509, 0....
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0answers
17 views

ogr2ogr reprojection issues

I have a geodatabase that I would like to convert to shapefile with epsg:4326 projection. For this I use ogr2ogr. However when I reproject, the results are off. They seem to have shifted? Any idea ...
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0answers
10 views

Specifying an SRS in a WFS input for a WPS operation in GeoServer

I am currently trying to perform a custom WPS operation on a set of filtered vectors in GeoServer. My plan is to specify the operation's input using a WFS query, which provides the flexibility I need ...
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0answers
22 views

Reprojecting raster in QGIS gives nan

I'm trying to reproject raster layers in QGIS. At the moment they are in ESPG:4326 and I want to convert them to ESPG:54009. (Using Save As... and changing the CRS). However, this produces a layer of ...
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0answers
34 views

writeRaster() not writing datum information

I am trying to reproject a raster to the USGS version of the Albers Equal Area Conic projection. Following this post, which talks about projecting vectors by adding the +datum=NAD83 and writing it out,...
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0answers
20 views

Projection of raster to sinusoidal projection

I have my definitive raster shown below. This raster has the projection as mentioned here class : RasterLayer dimensions : 7276, 8330, 60609080 (nrow, ncol, ncell) resolution : 463.3127, ...
2
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1answer
34 views

Detect coordinate system from dataset

I've been provided with a dataset containing some coordinates, but I don't recognise the coordinate system used. They look like standard UTM coordinates but the values don't match up with what I ...
2
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1answer
37 views

From SWEREF99 to EPSG:3857

I have a huge dataset of coordinates referenced with the SWEREF99 coordinate system. Now I would like to convert all these coordinates (and other data as well) to a coordinate system that can be ...
2
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2answers
45 views

Batchtransform multiple shapefiles with FME

I would like to batch-transform multiple shapefiles which are stores in several different folders. I used the batch deploy with the option "recreate source folder structure" which works well for ...
-1
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0answers
28 views

xarray assign time, latitude & longitude to `Dimensions` of netcdf file [on hold]

I have downloaded vegetation health data from the NOAA FTP service here. The help documentation is here. There are 2030 weekly files so I seek help doing this in parallel. In [0]: ls | wc -l ...
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3answers
32 views

Getting coordinates to display properly when imported from excel into ArcMap?

Both the base map and the table imported have been put to same coordinate system. Is only showing a single point at a wrong location for all points. When I click "identify" for the single point it ...
0
votes
1answer
70 views

Calculate Central Meridian Offset for Custom Projection of CAD File

I need to align an unprojected CAD file in ArcMap. I know how to adjust the False Easting and Northing, but this CAD file also has a rotation issue. I already adjusted the Central Meridian from -76.0 ...
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1answer
24 views

How to change the coordinate transformation function in Oracle?

I'm trying to reproject some data from one CRS to another (SRID:27493 to SRID:3763) using the SDO_CS.TRANSFORM function. The function works and returns no errors, but the coordinate transformation ...
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2answers
41 views

ITRF 2014 at Epoch 2010.00 and ITRF2014 at Epoch 2018.60? [closed]

What is the difference between ITRF 2014 at Epoch 2010.00 and ITRF2014 at Epoch 2018.60 ?
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1answer
68 views

Correct way to use WGS84 (lat/long degrees) in QGIS [duplicate]

I created new project in QGIS (v3.2.1) Added a OSM Standard layer with QuickMapServices plugin. Current CRS is EPSG:3857 Now I want to use map in degree units. As far as I understand I need to ...
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0answers
13 views

gdal2tiles tiling raster crosses 180 meridian

I have raster that has extra 180 longitude (Chukotka peninsula area) and I would like to make tiles (in gdal2tiles) of this .tif and there are some problems: When trying to reproject raster to EPSG:...
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vote
2answers
54 views

writeOGR() not writing out datum of shp

I am writing out a shp, in ESRI shapefile driver. In R, the projection of this shp is +proj=aea +lat_1=29.5 +lat_2=45.5 +lat_0=23 +lon_0=-96 +x_0=0 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=...
2
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0answers
16 views

PROJ.4 in QGIS Helmert

I am trying to create with PROJ a custom CRS in QGIS 3.2.0 - but I fail. I have a local, cartesian coordinate system and a transformation report (2D-Helmert) with the following parameters: ...
2
votes
2answers
64 views
+100

Reprojecting LiDAR data with libLAS: X scale and offset combination is insufficient to represent the data

Disclaimer: This is a duplicate of this, a question without an answer. This is not, however, a duplicate of this, as it is a different error. I have a LAS file projected in EPSG:32636, and I need to ...
1
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1answer
20 views

EPSG conversion and image rotation in folium

I'm using Python's folium library (which uses Leaflet) to display images over a map. However, my original data uses EPSG:3035 and folium uses EPSG:4326 (WGS84). There is a rotation when converting ...
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0answers
21 views

Dividing Geographical region into equal sized grid and retrieving indexing position

I have GPS coordinates of human mobility in Beijing Area. I want to divide geographical space in to rectangular grid, for example 2 sq. km (delta), and access the indexing position of any point inside ...
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0answers
20 views

Projected layers but they're not lining up

I have two projected layers - both in NAD_1983_2011_StatePlane_Illinois_East_FIPS_1201_Ft_US When I add the second layer I get a warning message stating it doesn't have the same coordinate system as ...
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1answer
28 views

Reprojecting XYZ coordinates in Python whilst keeping Z coordinate constant

When doing a reprojection from a projected coordinate system (e.g. EPSG:28992) to a geographic coordinate system (e.g. EPSG:4326), the Z coordinate gets an offset of 45 meters. The Z coordinates of ...
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1answer
22 views

QGIS reprojection is identical to original map; Deir ez Zor / Levant Stereographic (EPSG:22780) to WGS 84/UTM zone 36N (EPSG:32636)

I have a problem which I am trying to solve for several hours now, but nothing I try seems to work. I have a topo map which I want to georeference into Deir ez Zor / Levant Stereographic (EPSG:22780)...
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0answers
21 views

Reprojecting trouble: shapes saved in one EPSG load as another EPSG in QGIS and are 200m off?

I'm in a mixed working environment with some ESRI licenses and several people working with QGIS. For a project, we created data and received data in EPSG 31468 (Gauß-Krüger Zone 4). We now need to ...
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1answer
16 views

Leaflet Get Image Pixel Coordinate [closed]

May I know if I can plot some geometry on the image overlay and retrieve its pixel coordinate relative to the image pixel size?
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0answers
22 views

Projecting EUMETSAT precipitation data

I downloaded the H05 – PR-OBS-5 Accumulated precipitation at ground data from H-SAF. The Product User Manual states the dataset is in rectangular stereographic projection centred on 42°N, 10°E. I need ...
3
votes
1answer
21 views

Specifying geoid in ArcGIS Raster Project tool?

Background: ArcGIS Desktop 10.6, Spatial Analyst I have two bare-earth DEMs, derived from lidar, acquired on different dates. I need to subtract one DEM from the other as part of a stream erosion ...
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0answers
23 views

Displaying Vector in WGS84 on top of UTM Orthophoto using QGIS OTF?

I have very accurate Orthophoto in the UTM zone appropriate to the area. I also have very accurate GPS traces in WGS84 (using DGPS). So when I display them both on QGIS I don't expect to see miss-...
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0answers
22 views

Project Waypoints in relation to an object's location and bearing

I've been tasked to program a moving map for a flight simulator prorgram. What I need to do is to project waypoints from the flight plan entered into the aircraft navigation database onto a navigation ...
1
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1answer
47 views

USA Albers Equal Area Conic USGS version (LANDFIRE) projection not read by R or QGIS

I am working with the North America Forest Dynamics dataset. As mentioned it uses the USA Albers Equal Area USGS version projection, which is primarily different from the USA Albers Equal Area ...
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1answer
40 views

Using Geographic Transformation in Projection?

I copied my coordinate files into Coordinate folder inside Users\myuser\AppData\Roaming\Esri\Desktop 10.2\ArcMap\Coordinate Systems\.... The problem arises when I try to project using a custom made ...
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1answer
19 views

What is the Formula to get an Image's Bounding Box from it's GDAL GeoTransform Array?

I have a process which needs to read in an Image's GeoTransform Array, and convert it to the Bounding Box i.e. If the Input is: <GeoTransform> 7.8087700868360430e+05, 9.9974951285737870e+...
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1answer
28 views

Converting GPS points in WGS84 to local Still Water Mine Grid in ArcGIS Desktop?

How to convert GPS points in WGS84 to local Still Water Mine Grid? I got GPS points in WGS84, and just have info: Datum Still Water 0.0 to NAD_27_Montana South: 1903090, 506795 , rotation = -19.9988....
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1answer
26 views

Coordinate system - ArcMap and Mapinfo

I am not sure if someone already asked this question, but I am having trouble to understanding MapInfo and I only recently started working with ArcMap. I have done a map (different shp files) in a ...
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0answers
40 views

QGIS 3.2 CRS problem

I have two shapefiles, one is a vector layer (supplied by a third party) in GDA94/ SA Lambert. The other layer is of locations (created by importing a .csv file). I need to have both layers in the ...
2
votes
1answer
32 views

old coordinate systems that were “made up” by surveyors decades ago

Using ArcGIS COGO tool for ROW / Easement digitizing from old plats (using their bearings and distance calls) that used what a veteran of the county says were 'made up" coordinate systems in Maryland. ...
3
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0answers
32 views

Local grids with rotated north in QGIS

Like many people in geology and archaeology I need to work with local grids that have eastings and northings from a specific reference point, and typically have a difference alignment/direction of ...
1
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1answer
25 views

Reprojecting raster between laea and lon/lat alignment issues

This is a follow-up post to a recent question on StackOverflow. I'm now facing a GIS problem rather than a coding one. I'm working with a DEM from this source, which has the following projection ...
1
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1answer
154 views

QGIS degrees to meters

I have a global map with CRS WGS84-EPSG:4326 and I want to calculate the area of my polygons. From what I read, to change the unit from degrees to meters I need to change my CRS. However, there is no ...
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0answers
14 views

Sentinel-1 SNAP toolbox image view does not export as Geotiff i.e with spatial reference

I have a source image (S1) in WGS 84 UTM 24 N projection. The source image is used for a segmentation analysis. Using the k-means segmentation process, the source image is segmented and outputted as a ...
1
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1answer
27 views

geostatistics across different projections?

What are some best practices for calculating local geostatistics across the boundaries of different projections? I am thinking of using the State Plane Coordinate System to represent a national-...
1
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1answer
41 views

Distance mistake during grid creation

I'm working on a script where I create a grid with the bounding box of a geodataframe, a width and a height (they might be equals for a square grid). I don't know why but when I try to make a 10m ...
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0answers
22 views

How does one measure the area of a procedurally generated polygon?

Scenario I have a series of measurements imported as latitude and longitude of a center and a value. e.g LAT LONG VALUE Which describes a measured VALUE for an entire spacial area is defined by ...
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0answers
19 views

EPSG Geodetic Parameter Registry - SW supporting transformation EPSGs

The page www.epsg-registry.org contains EPSG codes for different transformations (i.e. EPSG:1173, EPSG:1244 etc.). Do you know about some GIS SW (online or desktop), which supports converting ...
2
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1answer
37 views

French coordinate conversion

I have an oldish (~2000) french guidebook where geographic coordinates are indicated in a system I don't know and I've been unable to find a suitable conversion. For instance, here are 2 points which ...
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0answers
23 views

ogr2ogr: Transformation from NAD27 to WGS84 not working

I'm trying to use ogr2ogr to transform from NAD27 to WGS84 and check the precision afterwards. For that, I used a GML file with coordinates -124.0, 48.0 It looks like this: { "type": "...
2
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6answers
77 views

How many CRS / EPSG codes are there?

I assume the answer to the number of CRS is "nobody knows", given that everybody can define their own CRS willy-nilly. So maybe it's better to ask: How many EPSG-registered CRS are there? I haven't ...
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votes
1answer
20 views

What is the process for using data in various projections with the ESRI JS API v4.8?

We have an extensive collection of GIS data sitting in ArcSDE, exposed via map and feature services, and already in a regional (projected) coordinate system. We are starting to explore building web ...
1
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1answer
26 views

Can an ASCII Grid contain a CRS or projection?

I recently discovered the raster library in R. With that library one can define a raster's coordinate reference system (crs) or projection. For example, to set the projection as NAD83 UTM 10N: crs(...