Displaying 1 result from an estimated 1 matches for "delete_null_obj".
2013 Sep 19
3
How do I ensure that the polygon in spatstat::owin(poly=<polygon>) does not have “negative area”
...). So I tried loading a massachusetts shape file (I am totally
taking guesses at this point).:
x <- readShapePoly("../Geog/OUTLINE25K_POLY") ## The shape file for
MASS, loaded from MassGIS website
mass.poly <- x <- readShapePoly("../Geog/OUTLINE25K_POLY",
force_ring=T, delete_null_obj=T) ## I got following error whether or
not I used force_ring
mass.owin <- as(mass.poly, "owin") Checking 1006 polygons...1, Polygon 1
contains duplicated vertices [Checking polygon with 91844 edges...] 2, 3,
.. [etd 1:21:52] ....10 [etd 36:12] ..... [etd 23:10] ....20 [etd 16:59]
......