The process of translating a map or spatial data from one geographic projection to another

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63 views

How to use Esri custom geographic transformation in FME Desktop 2015 Workbench?

I am trying to reproject DWG files from one projection system to other using a custom transformation created by me with ArcGIS. When I execute it reprojects the data but does not use the custom ...
2
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1answer
27 views

Defining output raster type in ModelBuilder?

Im trying to reproject raster data type .jpg inside a model builder, i batched the model, everything is ok besides that the raster type after that is in .tiff by default. I want those to stay in .jpg
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1answer
46 views

Reproject and cache a tile service

We have a legacy tile server with tiles georeferenced to EPSG:4326 accessed as follows through openlayers:- var OLDSERVICE = new ol.layer.Tile({ title: 'OLD SERVICE', ...
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1answer
134 views

On the fly reprojection in QGIS?

I'm new to QGIS and trying to deal with on the fly reprojection. I have three layers : a shapefile in EPSG:4326 a raster in EPSG:3395 that same raster reprojected in EPSG:3857 (with QGIS via the ...
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2answers
76 views

Coordinates transformation

I have the following data base with information about rainfall for a set of meteorological stations: year station latitude longitude depto municipio date rainfall 1990 11010010 0527 N ...
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2answers
129 views

projection conversion from local to UTM

I have some images at a local coordinate system with the following specifications: TIFF header file: -gdalinfo im.tif Driver: GTiff/GeoTIFF Coordinate System is: PROJCS["Eastern Ridge Project Grid ...
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1answer
49 views

Offset after projection from WGS84 to ETRS1989

I'm using ArcMap 10.3, my dataframes coordinate system is "ETRS_1989_UTM_Zone_32N_6Stellen". I have several shapefiles in my project which are using the WGS84 system. When I try to proct them to ...
2
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0answers
146 views

Problem reprojecting LiDAR data using liblas

I have multiple lidar data sets and I am trying to reproject them using liblas. They are missing the coordinate system in the header information so I assign them an SRS using las2las --a_srs: las2las ...
3
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1answer
76 views

Mass reprojection of raster files in a loop [Linux]

I have a folder with numerous .asc raster files that each accompanied by a corresponding .prj file. The file basename is the same for both files. The projection however can vary between all of them ...
3
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1answer
328 views

String of coordinates into Openlayers-3 Linestring on Vector Layer

I getting a string of coordinates like so: [[38.313072, -89.863845] ,[38.312675, -89.863586] ,[38.310405, -89.862091] ,[38.310405, -89.862091] ,[38.309913, -89.861976] ,[38.309768, -89.861976] ...
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1answer
93 views

transform geometry PostGIS column with unknown geometry type

I run PostgreSQL 9.1 and PostGIS 2.0. I have a table that contains one geometry column. But that column contains point, polygons lines, etc. So I set it like so, ALTER TABLE jake ADD COLUMN ...
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2answers
69 views

How to show two layers with different projections in QGIS

I have a shapefile that define X and Y in meters, not lat and lon. Then I have another file (CSV) that stores points locations as lat and lon, e.g. 30.4, 2.2. I want to load these two files as two ...
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2answers
68 views

cannot open shape file

I'm trying to open this shape file with CartoDB or http://geojson.io, but I keep getting different kind of errors. I can open it with qgis, but then I tried exporting it to geojson, kml, esri shape, ...
2
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2answers
64 views

Convert NAD_1983_Georgia_Statewide_Lambert to NAD83

All I have a ESRI generated shapefile that uses: NAD_1983_Georgia_Statewide_Lambert Here is the projection information: ...
2
votes
1answer
241 views

How to calculate the bounding box in projected coordinates?

I'm using GDAL in Python to reproject rasters. I'd like to be able to take an existing raster, and project it into a new raster to my projection and output pixel size of choice. I'm worried about ...
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1answer
57 views

gdal_warp some geotiffs change SRS

Hello I#m quite new to GDAL. I have some Geotiffs that I want reproject. I tried that with one file and it works great, but because the TIFF has to be slightly rotated for the conversion I have some ...
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0answers
85 views

Making DEM and Landsat Image Coincide in ArcMap?

I have a DEM with these properties: Spatial Reference: GCS_WGS_1984 Angular Unit: Degree (0.0174532925199433) Datum: D_WGS_1984 Raster Information: Columns and Rows: 3051, 2426 Cell size: ...
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1answer
381 views

How to calculate WGS84 (EPSG:4326) area in C# or SQLGeometry?

I am not normally a GIS developer, I am just helping out with a bug and I am stumped on what is going on here, could I get some help please. I have two calculations, one in 4326 (WGS84) and one in ...
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2answers
133 views

Why does the OpenLayers plugin override the predefined projection?

What I am trying to say is: You import a shapfile into an empty QGIS and the QGIS environment gets the projection system of the imported shapefile. You import another shapefile into QGIS. The ...
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0answers
33 views

Transform/Reproject an ImageService with Esri REST Api

I have an image service that was created with a NAD_83 Stateplane Coordinate System. I need to make this match the started Web Mercator. Can I reproject from the REST API? From this reference it ...
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1answer
155 views

When a file is exported, the co-ordinate system options: Layers source data or Data Frame. Does it convert these on the fly

If I have a shapefile in ArcMap and I go to export it, the export data dialog comes up with a mandatory choice of using the layer's data source coordinate system or the data frame's coordinate system. ...
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1answer
82 views

Convert Lat/Lon to Cartesian and back?

Simple calculation that for some reason I'm getting very wrong: def convert_to_vector(r, lat, long): x = r*math.cos(lat)*math.cos(long) y = r*math.cos(lat)*math.sin(long) z = ...
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1answer
52 views

Getting wrong values trying to convert to a latitude longitude system

By using listgeo I got the following information: PCS = 31468 (name unknown) If I am not mistaken this translates to DHDN / 3-degree Gauss-Kruger zone 4, and by using this site I got a proj4 ...
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0answers
105 views

How to Import Circular Polar Orbit (HDF5) data into ArcMap with WGS 1984 Projection

I'm currently trying to retrieve data from http://smap.jpl.nasa.gov/data/ and use it in ArcMap. The issue is that the data is curved towards the poles and so the bottom left of the extent isn't the ...
4
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1answer
134 views

Explaining gap between Robinson WGS84 (EPSG 54030) in QGIS and ArcMap?

Does anybody know why there a gap appearing between two point layers create with ESRI and QGIS when I a reproject, from the same source file, to Robinson ? The source coordinate system and ...
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28 views

Store WGS-84 degree decimal minute coordinates in postgis database [duplicate]

I have some data in a texfile where the coordinates are given in this format: lat lon 23S19.69 66W45.87 24S01.73 66W55.61 I already learned that it is some kind of WGS-84 with degree and ...
3
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1answer
38 views

Problem exporting registers with the land registry in DXF continuation (suite) in reprojection

I visualize (display) a municipality with the plugin register with the land registry in spatiality and in projection Lambert 93. I need the bottom on Autocad in projection CC47 thus I re-throw ...
3
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1answer
204 views

Averaging Cartesian ECEF coordinates then converting to WGS84 without latitude drift

Preface: I'm unsure if GIS or math is the correct community for this question. I have a set of 9 WGS84 latitude/longitude (degree) pairs for which I need to find the weighted average of. To prevent ...
4
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1answer
79 views

How to center a user-defined CRS on an area of interest?

My study extent in central Iran straddles two UTM zones (39 and 40): I would like to create a user-defined CRS in Transverse Mercator projection with central meridian inside this area. Through ...
2
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1answer
180 views

QGIS Reprojecting csv point file to projected CRS

This is a problem I have been struggling with quite a bit and so far have not found a good solution, so I hope to find some help here or an eyeopener where I have gone wrong so far. Using QGIS 2.10.1 ...
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2answers
206 views

Defining coordinate reference system with rotation in GeoServer?

I am using GeoServer and have a layer in EPSG:900913 ("Google Mercator"). I need to "rotate" the map around certain point (say, 1500000, 7000000) by certain degree (say, 30 degrees clockwise). How ...
3
votes
1answer
52 views

Wedge of missing data reprojecting to stereographic

I am trying to reproject an equirectangular projection image into stereographic around the north pole of mars using gdalwarp and I am not sure what is happening in my output image. The input image ...
0
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1answer
76 views

OpenLayers tiles from reprojected mapdata mixes zoom levels

We have a map tile layer on OpenLayers where original projection is EPSG:3067 and it is reprojected to EPSG:3395 projection. The map is coming there quite ok, it has not the tiles as straight squares, ...
2
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1answer
407 views

Converting Lambert Conformal Conic (LCC) to UTM

I have two numpy meshgrids (X, Y both 2D) in Lambert Conformal conic with the following information: I'd like to directly (or indirectly if not possible) project them to UTM. I have both pyproj and ...
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313 views

Projection Transformation from ETRS89 LAEA to WGS1984

I am having difficulties to transform a Shapefile in ArcGIS 10 from ETRS 1989 LAEA to WGS 1984 N33. I have 2 files: a) in WGS1984 N33, with a grid of 10x10km, b) in ETRS 1989 LAEA, with small ...
10
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2answers
250 views

Why do I get correct area and intersect area when use wrong projection?

I need to calculate areas and intersection areas for polygons (some real geographical objects like lake, city, country, e.t.c.). Polygons located in California, New Zealand, Russia.Anadyr, Sweden All ...
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1answer
31 views

Is it possible to project an ArcGISDynamicMapServiceLayer using the JS API?

I need to project some dynamic layers to Web Mercator. The geometry service only projects geometries. Is there a geo-processing tool in ArcMap for this? Or any suggestions how i could do this without ...
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1answer
497 views

Converting from kilometers to degrees distances?

We have geometries in a Postgis database with SRID WGS84 and we have found lookups directly in degrees to be much faster than in kilometres, because the database can skip the projections I would ...
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1answer
83 views

Simple way to plot netCDF variables on Mollweide projection in R

After spending hours Googling I'm still no closer. I'm very keen to find out if there is a very simple way to plot up variables from a netCDF file that are stored in a regular lat-lon grid (-90to90˚N, ...
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1answer
44 views

How add a text field and then reproject all shapefiles which are in sub folders

I have a folder and inside of that folder, I have about 500 sub folders which contain on average about 5 shapefiles each. What I want to do is: to check if there is a field, lets say field_1, and ...
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1answer
89 views

How to project from Greek Grid to ETRS LAEA

How to make a project transformation between Greek Grid (EPSG:2100) to ETRS LAEA L52_M10? I'm using ArcGis 9.3.1, but when I use the project tool, it don't have anything in "Geographic ...
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0answers
67 views

GDALwarp: Re-projecting from EPSG<4326> to EPSG<3857>; problem: “double pixels”

I would like to change the projection from a png file that shows river pixels that exceed a certain threshold. Therefore I am following this workflow: (note: it is part of a larger R script) 1) ...
2
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1answer
105 views

OTF reprojection and reprojecting layer not working in QGIS

more troubles in QGIS. I georeferenced this raster in Corrego Alegre UTM23S and loaded up, so project CRS automatically changed to that. So far so good. I need it to be however in WGS84 UTM 23S. None ...
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1answer
291 views

Convert distance from meters to EPSG 3857

I need to convert distance from meters to units of EPSG 3857 in PostGIS. This is important for me to calculate a radius for ST_DWITHIN as I'm dealing with geometries. How can I do this?
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18 views

Defining Projection of Shapefile Didn't Align With Basemap, EPA Ecoregions [duplicate]

I'm using ArcMap 10.2 on a Windows 10 PC. I tried defining the projection of the ecoregions of Alabama and Georgia shape file (USA Contiguous Albers Equal Area Conic USGS version) to my basemap (GCS ...
2
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3answers
583 views

How to project a layer from WGS84 lat/long (automatic projection) to WGS 84 UTM Zone 23S in QGIS?

So I have a vector layer of polygons in WGS 84 lat/long (i.e. using the automatic projection for lat/long and WGS84 datum). I want to change that to WGS84 UTM 23S in QGIS. I tried doing like online ...
0
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1answer
147 views

Geoserver renders reprojected raster only as transparent images

Trying to reproject WMS layers in geoserver from the default of EPSG:4326 to EPSG:3574 Using the default projection works fine. url = ...
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2answers
144 views

Why do my raster pixels not align?

I am working in ArcMap 10.2.2. I am trying to project a NED 3m dataset from a Geographic Coordinate System to a Projected Coordinate System. The output rasters pixels do not overlap the original ...
2
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1answer
254 views

Reprojecting MODIS Sea Ice Extent and IST data using GDAL

This is an additional exploration of the problem described at Reprojecting MODIS Ice Sea Temperature products with gdalwarp which was never answered in a satisfying way (I apologise for the length of ...
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65 views

Coordinate Transformation Issues

We are a GIS department using ArcDesktop and SDE 10.3. We are receiving service requests through a 3rd party web application (seeclickfix) that records the service request in WGS 84 lat/long. The ...