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

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2
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1answer
119 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] ...
0
votes
1answer
47 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 ...
1
vote
2answers
53 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 ...
2
votes
2answers
61 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
votes
2answers
48 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
146 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 ...
1
vote
1answer
46 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 ...
0
votes
0answers
59 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: ...
2
votes
1answer
233 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 ...
1
vote
2answers
128 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 ...
0
votes
0answers
19 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 ...
1
vote
1answer
83 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. ...
0
votes
1answer
70 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 = ...
0
votes
1answer
48 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 ...
1
vote
0answers
77 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
votes
1answer
103 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 ...
0
votes
0answers
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
votes
1answer
35 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
votes
1answer
145 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
votes
1answer
69 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
votes
1answer
109 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 ...
1
vote
2answers
112 views

How to define a 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
48 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
votes
1answer
52 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
votes
1answer
282 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 ...
0
votes
0answers
185 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
votes
2answers
235 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 ...
0
votes
1answer
29 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 ...
1
vote
1answer
301 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 ...
1
vote
1answer
67 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, ...
0
votes
1answer
42 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 ...
0
votes
1answer
53 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 ...
0
votes
0answers
58 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
votes
1answer
61 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 ...
1
vote
1answer
200 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?
0
votes
0answers
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
votes
3answers
350 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
votes
1answer
120 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 = ...
0
votes
2answers
84 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
votes
1answer
173 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 ...
0
votes
0answers
50 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 ...
1
vote
1answer
68 views

Transforming coordinate in the Swiss reference system LV95 into LatLong/WGS84

I would like to transform coordinates expressed in the Swiss reference system LV95 into LatLong/WGS84. On the website of the Swiss topography centre, there is an application to do so, however ...
2
votes
1answer
176 views

Conversion of 3 degree UTM zone Easting Northing to WGS-84

In Nepal we use 3 degrees width zone UTM with 3 central meridians 81 E, 84 E and 87 E and datum: Everest-1830. I am trying to convert the Everest-projected coordinates to WGS-84's Latitude and ...
1
vote
1answer
80 views

Strange effect in gdalwarp output

I am using gdalwarp in python to extract and re-project reflectance bands from MODIS level 1B (MOD021km). An example of the command that I am using is the following: gdalwarp -of GTIFF -tps -t_srs ...
0
votes
0answers
75 views

Openlayers-3 setCenter is not working

I'm trying to set the center (setCenter) of the map from a JSON coordinate that comes in form Genomes using ui.autocomplete. I'm using the openlayers default proj of EPSG:3857, so to get the ...
1
vote
1answer
180 views

How to Install GDAL with ECW Support on Windows

What do I download from http://www.gisinternals.com/stable.php for Win7-32 to cut 1:1M map sheets out of Australia.ecw file in GDA94/Geographic and save them as geotiff in WGS84/Geographic? I would ...
3
votes
1answer
155 views

Difference between gdalwarp and projectRaster

I am trying to project a Raster. In R there is the projectRaster() function to to this (below a fully reproducibly example) : # example Raster require(raster) r <- raster(xmn=-110, xmx=-90, ...
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vote
0answers
52 views

C++ Convert Lat Long to BNG with Proj.4

Im creating a plugin for VBS2. In the program I can output a grid in either LAT LONG,UTM or MGRS. I need to be able to convert to BNG. I have managed to create a TKinter application in python that ...
0
votes
1answer
62 views

Autocomplete “select” not centering on map

Everything seems to be working good until I select from the list of names. The map isn't centering on the proper coordinates. I'm using Jquery UI and and openlayers 3. here's my code: $(function ...
1
vote
1answer
36 views

XML Document points to the wrong location after using arcpy.BatchProject()

I'm trying to reproject a number of shapefiles representing contours from NAD_83_Albers to NAD_83_UTM_Zone_9N using arcpy.BatchProject(), but I have to use python/regex to preserve a particular file ...