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| 1 | +# Copyright (c) 2006-7 Patrick Hausmann and Roger Bivand |
| 2 | + |
| 3 | +#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 4 | +sp2Mondrian <- function(SP, file, new_format=TRUE) { |
| 5 | + if (!inherits(SP, "SpatialPolygonsDataFrame")) |
| 6 | + stop("not a SpatialPolygonsDataFrame object") |
| 7 | + pls <- slot(SP, "polygons") |
| 8 | + n <- length(pls) |
| 9 | + id <- 1:n |
| 10 | + df <- as(SP, "data.frame") |
| 11 | + df <- data.frame("/P_SP_ID"=id, df, check.names=FALSE) |
| 12 | + |
| 13 | + if (!new_format) { |
| 14 | + con <- file(file, open="wt") |
| 15 | + write.table(df, file = con, |
| 16 | + quote = FALSE, |
| 17 | + row.names = FALSE, |
| 18 | + col.names = TRUE, sep="\t", dec=".") |
| 19 | + IDs <- sapply(pls, function(x) slot(x, "ID")) |
| 20 | + for (i in 1:n) { |
| 21 | + pl <- slot(pls[[i]], "Polygons") |
| 22 | + m <- length(pl) |
| 23 | + for (j in 1:m) { |
| 24 | + crds <- slot(pl[[j]], "coords") |
| 25 | + nc <- nrow(crds) |
| 26 | + lab <- paste(id[i], paste("/P", IDs[i], sep=""), |
| 27 | + nc, sep="\t") |
| 28 | + cat("\n", file = con) |
| 29 | + writeLines(lab, con = con) |
| 30 | + write.table(crds, file = con, |
| 31 | + append = TRUE, |
| 32 | + row.names = FALSE, |
| 33 | + col.names = FALSE, sep="\t", dec=".") |
| 34 | + } |
| 35 | + |
| 36 | + } |
| 37 | + close(con) |
| 38 | + } else { |
| 39 | + bnm <- basename(file) |
| 40 | + dnm <- dirname(file) |
| 41 | + MAP_file <- paste(dnm, paste("MAP_", bnm, sep=""), |
| 42 | + sep=.Platform$file.sep) |
| 43 | + |
| 44 | + con <- file(file, open="wt") |
| 45 | + write.table(df, file = con, |
| 46 | + quote = FALSE, |
| 47 | + row.names = FALSE, |
| 48 | + col.names = TRUE, sep="\t", dec=".") |
| 49 | + |
| 50 | + cat("\n", file = con) |
| 51 | + writeLines(MAP_file, con, sep="") |
| 52 | + |
| 53 | + close(con) |
| 54 | + con <- file(MAP_file, open="wt") |
| 55 | + for (i in 1:n) { |
| 56 | + pl <- slot(pls[[i]], "Polygons") |
| 57 | + m <- length(pl) |
| 58 | + for (j in 1:m) { |
| 59 | + crds <- slot(pl[[j]], "coords") |
| 60 | + nc <- nrow(crds) |
| 61 | + lab <- paste(id[i], "/P_SP_ID", nc, sep="\t") |
| 62 | + if (i > 1 || j > 1) cat("\n", file = con) |
| 63 | + writeLines(lab, con = con) |
| 64 | + write.table(crds, file = con, |
| 65 | + append = TRUE, |
| 66 | + row.names = FALSE, |
| 67 | + col.names = FALSE, sep="\t", dec=".") |
| 68 | + } |
| 69 | + |
| 70 | + } |
| 71 | + close(con) |
| 72 | + } |
| 73 | + invisible(NULL) |
| 74 | +} |
| 75 | + |
| 76 | + |
| 77 | +Shape2Mondrian <- function(shape, file, id, export.data = TRUE) { |
| 78 | + |
| 79 | + fshape <- shape |
| 80 | + xfile <- file |
| 81 | + idx <- paste("/P", id, sep="") |
| 82 | + |
| 83 | + # |
| 84 | + # Export "att.data" -- TRUE / FALSE |
| 85 | + # |
| 86 | + if (is.logical(export.data) && export.data) { |
| 87 | + y <- fshape$att.data |
| 88 | + names(y) <- sub(id, idx, names(y)) |
| 89 | + write.table(y, file = xfile, |
| 90 | + append = TRUE, |
| 91 | + row.names = FALSE, |
| 92 | + col.names = TRUE, sep="\t", dec=".") |
| 93 | + } |
| 94 | + |
| 95 | + for (i in 1:length(fshape$Shapes)) { |
| 96 | + |
| 97 | + xnrow <- nrow(fshape$Shapes[[i]]$verts) |
| 98 | + lab <- paste(i, idx, xnrow, sep="\t") |
| 99 | + |
| 100 | + write.table("\n", file = xfile, |
| 101 | + append = TRUE, eol = "", |
| 102 | + quote = FALSE, |
| 103 | + row.names = FALSE, |
| 104 | + col.names = FALSE) |
| 105 | + write.table(lab, file = xfile, |
| 106 | + append = TRUE, |
| 107 | + quote = FALSE, |
| 108 | + row.names = FALSE, |
| 109 | + col.names = FALSE, sep="\t") |
| 110 | + write.table(fshape$Shapes[[i]]$verts, file = xfile, |
| 111 | + append = TRUE, |
| 112 | + row.names = FALSE, |
| 113 | + col.names = FALSE, sep="\t", dec=".") |
| 114 | + } |
| 115 | +} |
| 116 | + |
| 117 | +#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 118 | + |
| 119 | +#library(maptools) |
| 120 | +#x <- read.shape(system.file("shapes/columbus.shp", package="maptools")[1]) |
| 121 | +#Shape2Mondrian(x, file="c:\\colombus.txt", "POLYID", export.data = TRUE) |
| 122 | +#xx <- readShapePoly(system.file("shapes/columbus.shp", package="maptools")[1]) |
| 123 | +#sp2Mondrian(xx, file="colombus1.txt") |
| 124 | + |
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