How to convert lon-lat points to simple features?
How can I convert lon-lat points to simple features (sfg), and then put them in a simple feature collection (sfc)? Here is a MWE that doesn’t work but is the closest I have gotten to.
Is there way to convert shapefile to lat lon?
Closed 3 years ago. I have received a shapefile with measurement points to be analyzed, but no matter how I try, I can’t find how to convert to lat lon. I suppose it would be good to know the projection but when I look into the file (with R and summary ()) it says “Is projected: NA” and “proj4string : [NA]”.
How to convert longitude and latitude into SF polygon data frame?
I have five longitude and latitude that form a shape like this. How could I easily convert them into an sf polygon data frame using sf package like this?
How to convert sequence of longitude and latitude to Polygon?
Then, because sf works well with dplyr, we can st_combine the points into a MULTIPOINT and st_cast to convert to POLYGON.
What is the default CRS for a SFC object?
The default CRS for an sfc object is NA or not available. Let’s create an sfc object from one of the above sfg objects with the default CRS to see how an sfc object differs from an sfg object even when it contains the geometry of only one feature.
How are SFG objects related to the geometry of a feature?
sfg objects represent the geometry of a single feature and contains information about the feature’s coordinates, dimension, and type of geometry. The coordinates are the values of the point or points in the feature, which can have two-, three-, or four dimensions.
How to convert lat long coordinates to address?
Reverse geocoding is the process to convert the latitude and longitude coordinates to a readable address. Type the lat long coordinates and press Convert button. Reverse geocoded address will shown below. Also the municipality, subdivision and country name can be found. View latitude and longitude coordinates on the map.
Can you enter Lat and long in DMS?
For historians working on old ship’s logs, it would be marvellous to have a facility to enter Lat & Long (preferably in DMS) for one point, then do the same for a second point, and then get the great circle compass bearing, plus the great circle distance between them – preferably with an option of nautical miles for distance.