Linked Questions

4
votes
4answers
9k views

Find CRS (coordinate reference system) based on known location and coordinates? [duplicate]

Is there any tool or any tutorial which would help me to figure out CRS (coordinate reference system) from related information? In my particular case I know only the system is in meters, has origin (...
0
votes
1answer
898 views

Identifying projection for shapefile with unknown coordinate system, no z values and no measures? [duplicate]

I am attempting to create a GIS Project with multiple Brazilian cities. I have been collecting, and am interested in, shapefiles that delineate the neighborhood boundaries of said cities. One city's ...
0
votes
2answers
543 views

Determining coordinate system of image to be georeferenced? [duplicate]

Possible Duplicate: .shp with unknown coordinate system I need to capture spatial information off of an old map and I can't determine the coordinate system of the image. I also need to examine/...
0
votes
1answer
781 views

How do i identify unknown coordinates reference system for my data [duplicate]

I have several shapesfiles which perfectly overlay but the coordinates reference system is unknown. I need to overly these with other data in a different coordinate system. I tried initially to ...
1
vote
1answer
303 views

What projection is my data? [duplicate]

I received a dataset containing some "XY" coordinates that are supposed to correspond to some locations in natural reserves/national parks in Costa Rica. I'm trying to use the proj4 package ...
1
vote
2answers
569 views

X-Y coordinates unknown coordinate system? [duplicate]

I received a .dbf file with coordinates in a numerical format I have not been able to identify (for example (X,Y): 6151578.03, 2090875.69). These coordinates represent bus stop locations in the Orange ...
1
vote
1answer
198 views

What coordinate system/projection are these Fresno, CA data points? [duplicate]

I have some shapefiles which include various points and a corresponding street address, whose lat/lon I've manually found in Google Maps. There is no .prj file. Google Maps Lat,Lon, unknown ...
1
vote
1answer
239 views

Find CRS/Projection that matches a map [duplicate]

I have been given some utility plant maps for a project my company is working on but they don't come with a projection listed (they are in PDF format, but I will strip them down, make them transparent,...
0
votes
0answers
221 views

Projecting Microstation .dgn that has no coordinate system [duplicate]

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 ...
-1
votes
1answer
157 views

Determine unknown projection coordinates [duplicate]

I have some data in ArcGIS, but unfortunately there isn't projection coordinate, like the picture below: This place is in America and its longitude and latitude is about -75.2° and 40.1°. Can anyone ...
0
votes
1answer
121 views

What coordinate system is this data is in? [duplicate]

I have a CSV with latitudes, longitudes, and place descriptions, I'm trying to figure out the CRS so I can reproject the data. The data has no accessible documentation, and appears to be dumped out ...
4
votes
2answers
67 views

Translate postgis data to a coordinate system [duplicate]

I have a PostGIS database where the data is in an unknown or incorrect coordinate system. Is there a way given some known points in the data to translate all the data to a specific coordinate system.
5
votes
0answers
140 views

Retrieving projection system used to create shapefile when prj file is missing? [duplicate]

Possible Duplicate: Identifying Coordinate System of Shapefile when Unknown? Are there any tools to help retrieving the projection system used to create a shapefile when there is no .prj file? ...
1
vote
0answers
131 views

Create custom projection for Shapefile, given specific target coordinates [duplicate]

I have a somewhat odd situtaion. A client has provided me with a Shapefile that has no projection information, along with an image of the map that it corresponds to. I have run some coordinates ...
1
vote
1answer
71 views

What type of coordinates are these and how to transform them to standard WGS84 (EPSG:4326)? [duplicate]

I have the coordinates : North = 861597.4129 , East = 1063313.808 All I know is that they should belong somewhere in the city of Cali, Colombia. I have tried different Colombian EPSG codes but I still ...

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