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Type 'q()' to quit R. > suppressPackageStartupMessages(library(sf)) > if (require(spatstat.random, quietly = TRUE)) { + + data(chicago) + st_as_sf(chicago) + # ppp: + g = gorillas + st_as_sf(g) + marks(g) = NULL + st_as_sf(g) + + # multipolygon: https://github.com/r-spatial/sf/issues/1161 + window = read_sf(system.file("shape/nc.shp", package = "sf")) %>% + st_transform(32119) + + win = spatstat.geom::as.owin(window) + + set.seed(1331) + pp2a = runifpoint(n = 50, win = win) + print(st_as_sf(pp2a)) + + # st_sample going the spatstat way + x <- sf::st_sfc(sf::st_polygon(list(rbind(c(0, 0), c(10, 0), c(10, 10), c(0, 0))))) + try(pts <- st_sample(x, type = "thomas")) + try(pts <- st_sample(x, kappa = 1, mu = 10, type = "Thomas")) + # points expected + set.seed(1331) + pts <- st_sample(x, kappa = 1, mu = 10, scale = 0.1, type = "Thomas") + #plot(x) + #plot(pts, add = TRUE) + pts + + # see https://github.com/r-spatial/sf/issues/1233 + # png("/tmp/spa%03d.png") + + p1 = st_point(0:1) + p2 = st_point(1:2) + p3 = st_point(c(-1,2)) + p = st_sfc(p1, p2, p3) + as.ppp(p) + try(as.ppp(st_set_crs(p, 4326))) + + sf = st_sf(geom = p) + try(as.ppp(sf)) + sf = st_sf(a = 1:3, geom = p) + as.ppp(sf) + sf = st_sf(a = 1:3, b=3:1, geom = p) + as.ppp(sf) # warns + + w = st_as_sfc(st_bbox(st_sfc(p1, p2))) + sf = st_sf(a = 1:3, geom = p) + (p0 = rbind(st_sf(a = 0, geom = w), sf)) + try(as.ppp(p0)) # errors: one point outside window + + w = st_as_sfc(st_bbox(p)) + sf = st_sf(a = 1:3, geom = p) + (p0 = rbind(st_sf(a = 0, geom = w), sf)) + as.ppp(p0) + + # as.owin.sf, as.owin.sfc_* + nc = st_read(system.file("gpkg/nc.gpkg", package="sf"), check_ring_dir = TRUE, quiet = TRUE) + try(as.owin(nc)) # should be projected + nc = st_transform(nc, 32119) + plot(as.owin(nc), col = 'grey') + plot(as.owin(st_geometry(nc)), col = 'grey') + + sq = rbind(c(-1,-1), c(1, -1), c(1,1), c(-1,1), c(-1,-1)) + pol = st_polygon(list(0.5 * sq, sq[5:1,] * 0.45)) # w hole + plot(as.owin(pol), col = 'grey') + plot(as.owin(st_sfc(pol)), col = 'grey') + mpol = st_multipolygon(list( + list(sq, sq[5:1,] * 0.9), + list(sq * 2, sq[5:1,] * 1.8))) + plot(as.owin(mpol), col = 'grey') + plot(as.owin(st_sfc(mpol)), col = 'grey') + plot(as.owin(st_sfc(pol, mpol)), col = 'grey') + plot(as.owin(st_sf(a=1:2, st_sfc(pol, mpol))), col = 'grey') + (o = as.owin(st_sf(a=1:2, st_sfc(pol, mpol)))) + st_as_sfc(o) + + plot(st_as_sfc(o), col = 'blue', main = 'st_as_sfc(o)') + plot(st_as_sf(o), col = 'blue', main = 'st_as_sf(o)') + + data(japanesepines) + st_as_sf(japanesepines) # warns about multiplier + jp = rescale(japanesepines) + st_as_sf(jp) # No warning + + data(nztrees) + qNZ <- quadratcount(nztrees, nx=4, ny=3) + ts = as.tess(qNZ) + plot(st_as_sfc(ts)) + + ls = st_linestring(rbind(c(0,0), c(1,1), c(2,0))) + plot(as.psp(ls)) + mls = st_multilinestring(list(rbind(c(0,0), c(1,1), c(2,0)), rbind(c(3,3), c(4,2)))) + plot(as.psp(mls)) + + plot(as.psp(st_sfc(ls))) + plot(as.psp(st_sfc(mls))) + plot(as.psp(st_sfc(ls, mls))) + + sf = st_sf(st_cast(st_sfc(ls, mls), "MULTILINESTRING"), marks = 1:2, foo = 2:1) + as.psp(sf) # picks marks itself + as.psp(sf, marks = 5:1) + + (x = st_as_sf(as.psp(sf))) + (y = st_as_sfc(as.psp(sf))) + all.equal(st_geometry(x), y) + } spatstat.geom 3.2-7 spatstat.random 3.2-2 Simple feature collection with 51 features and 1 field Geometry type: GEOMETRY Dimension: XY Bounding box: xmin: 123829.8 ymin: 14740.06 xmax: 930518.6 ymax: 318255.5 CRS: NA First 10 features: label geom 1 window MULTIPOLYGON (((886135.8 31... 2 point POINT (339121.1 257811.6) 3 point POINT (827440.4 246568.3) 4 point POINT (451339.2 207943.6) 5 point POINT (268749.7 203323.4) 6 point POINT (516676.5 198556.1) 7 point POINT (692366 238643.1) 8 point POINT (843278.5 287241.6) 9 point POINT (648477.7 235466.6) 10 point POINT (852593 267248.3) Error in st_poly_sample(x, size = size, ..., type = type, by_polygon = by_polygon) : rthomas is not an exported function from spatstat.random. Error in st_poly_sample(x, size = size, ..., type = type, by_polygon = by_polygon) : The spatstat function rThomas did not return a valid result. Consult the help file. Error message from spatstat: Error in spatstat_fun(..., win = spatstat.geom::as.owin(x)) : argument "scale" is missing, with no default Error : Only projected coordinates may be converted to spatstat class objects Error in `marks<-.ppp`(`*tmp*`, value = value) : number of rows of data frame != number of points In addition: Warning messages: 1: In as.ppp.sf(sf) : only first attribute column is used for marks 2: 1 point was rejected as lying outside the specified window Error : Only projected coordinates may be converted to spatstat class objects [1] TRUE Warning message: In st_as_sfc.owin(spatstat.geom::as.owin(x)) : The spatstat object has an measurement unit multiplier != 1. Consider rescaling before converting. > > proc.time() user system elapsed 2.14 0.40 2.53