Convert utm to decimal degrees8/9/2023 ![]() ![]() Plot(c, axes = TRUE, main = "Lat-Long Coordinates", cex.axis = 0.95) # +proj=utm +zone=48 +south +datum=WGS84 +units=m +no_defs # Coordinate Reference System (CRS) arguments: +init=epsg:32748 # Transforming coordinate to UTM using EPSG=32748 for WGS=84, UTM Zone=48M,Ĭord.UTM <- spTransform(c, CRS("+init=epsg:32748")) ![]() # Setting existing coordinate as lat-long system # Path to PROJ.4 shared files: /Library/Frameworks/R.framework/Versions/3.1/Resources/library/rgdal/projĬord.dec = SpatialPoints(cbind(data$long, -data$lat), proj4string = CRS("+proj=longlat")) # Path to GDAL shared files: /Library/Frameworks/R.framework/Versions/3.1/Resources/library/rgdal/gdal # Loaded GDAL runtime: GDAL 1.9.2, released 8 # Geospatial Data Abstraction Library extensions to R successfully loaded The complete R codes.ĭo not expect fancy code with me (LOL). (d) reproj data from the first mapset to the second (r.proj and v.proj commands). Then you can create new GRASS mapset using your reprojected data. Converting coordinatesĭata Save As… (select new proection in the dialog). Sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstableĪnother way suggested by Robin Lovelace was working on Ubuntu 13.04. According to the same link above, this command was re-ran after switching off the related update site in the Ubuntu's update manager database: Sudo add-apt-repository ppa:marutter/c2d4uĪnother way (that did not work for me, but it might work on you). I googled it and this terminal command did work on my machine running Ubuntu 13.10. It has something to do with libgdal1-dev and libproj-dev files and their version which is corresponding to the Linux kernel version. Installing rgdal on UbuntuĪs I have said, installing rgdal on Linux was not as smooth as installing the other spatial packages, say maptools, geoR, or sp. After installation, call the package using In my case, the installation went well in Mac (running Snow Leopard) and also Windows 7, but it needed a workaround to install it on my Linux machine (Ubuntu 13.10). This is the basic R package that deals with spatial analysis. Now, to do a coordinate conversion, you would need rgdal package. I'll talk about this later, since I'm still figuring out how to use it to make variograms and trend maps. Many R packages in spatial section only read this projection system (correct me if I'm wrong). So If you do spatial analysis using R, you would need to set your coordinate into easting and northing system. But after several trial and errors, it's really not that hard. I am kind of (forced) to do the spatial analysis in R :-). This bit is part of my work in modeling the hydrology of Cikapundung Catchment. if the converter outputs strange coordinates - check the sequence of input values (north first).Ĭopy the list with the latitude and longitude values and paste it into a spreadsheet, a text editor - or whatever you prefer - for further processing.How to convert lat-long coordinates to UTM (easting-northing) How to convert lat-long coordinates to UTM (easting-northing) 1. Note! - keep the first line in the text box untouched. Click "Convert!" to add latitude and longitude to the coordinates. Replace the coordinates below with a comma separated (CSV) list with one UTM point on every line. You can use the tool below to convert a list of many UTM coordinate points to their latitude and longitude values. However, for high-precision surveying work - be aware that the two systems deviates more than half a meter. ![]() Note that the World Geodetic System WGS84 and the European Reference System ETRS89 are virtually identical and that coordinate transformation between the two systems in practical navigation is unnecessary. The east coordinate is the distance from the central median. The UTM north coordinate is the projected distance from equator for all zones. The units for both east and north coordinates are meters. Each zone is based on a specifically defined secant Transverse Mercator projection. The UTM system is not a single map projection but instead series of sixty zones. ![]() In the UTM coordinate system a grid is used to specify locations on the surface of the Earth. Make a Shortcut to this Calculator on Your Home Screen?.*) Based on the WGS84 Datum - the calculator is valid for the northern hemisphere. Convert from UTM - Universal Transverse Mercator - coordinates to latitude and longitude coordinates. ![]()
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