Linked Questions

3
votes
4answers
5k 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
639 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
452 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
606 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
2answers
355 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
120 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 in R to ...
1
vote
1answer
85 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
votes
1answer
133 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
95 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
52 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
127 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
1answer
86 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,...
1
vote
0answers
98 views

List of methods of determining the projection of a shapefile when .prj is missing [duplicate]

Possible Duplicate: Best practices for identifying the unknown coordinate system of a Shapefile It would be helpful to mention what information is needed to perform each technique. What are ...
-1
votes
1answer
64 views

A place in Pennsylvania with unknown projection [duplicate]

I have a shapefile with no projection. As a result, the (X,Y) coordinate cannot be understood. This place is in south eastern Pennsylvania, and its longitude and latitude is about -75.2° and 40.1°. ...
1
vote
0answers
71 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 ...

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