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How to convert polygon boundaries to spatiallinesdataframe?
I have a SpatialPolygonsDataFrame and I need to convert polygon boundaries into a SpatialLinesDataFrame retaining the attributes of the 2 polygons ‘data.frame’: 11 obs. of 2 variables: $ ID_poly : int 1 2 3 4 5 6 7 8 9 10 $ Code: chr “33200” “32110” “33300” “32410”
How to convert a spatialpolygon to a polygon?
When the Error: “row.names of data and Polygons IDs do not match” arise this solution seems to be helpful: rename IDs of the dataframe to match IDs of the polygons: I find the following solution generally works. Then use df as the second argument to the spatial dataframe conversion function:
How to create polygon that share the boundaries of existing polygons?
How can I create polygons that share the boundaries of existing polygons. And last, can I use trace method for creating polygon in QGIS? Enable the snapping toolbar and open snapping settings. Then, choose the advanced configuration and select your layer of interest Go to Add Feature and start digitizing.
How to convert XY coordinates to lines in R?
Following an email exchange with Rafael Pereira, and the excellent StackOverflow answer from Robin Lovelace, I wrote up a function, points_to_line, that is designed to resemble the “Points to Line” tool available in ArcGIS. I borrow the approach slightly as well from the book Applied Spatial Data Analysis with R.
How to create a spatial points object in R?
I have produced a SpatialPoints object (named v3) in R from the function gIntersection (package rgeos ). The SpatialPoints object v3 has the following structure and is represented by red points on the image below.
Can you make spatiallines with splines in raster?
You can make SpatialLines with spLines in raster But the points need to be ordered correctly, and if they are not, it may be difficult to get them in the right order. Thanks for contributing an answer to Geographic Information Systems Stack Exchange!