On Sun, 10 May 2015, Daniel Marcelino wrote:
Dear all, I'm having the following issue when trying to read a
topographical json file:
The file is not recognised by OGR either, so is probably not conforming to
geojson expectations. It declares itself as HTML, but within github puts
boundaries on a map background, so I think the file is trying to do much
more than simply represent Welsh parliamentary constituencies.
Roger
The file is here
https://github.com/kjhealy/uk-elections/blob/master/maps/topo_wpc.json
uk.map <- readOGR(dsn = "maps/topo_wpc.json", layer = "wpc")
Error in ogrInfo(dsn = dsn, layer = layer, encoding = encoding,
use_iconv = use_iconv, :
Cannot open file
traceback()
5: .Call("ogrInfo", as.character(dsn), as.character(layer), PACKAGE = "rgdal")
4: ogrInfo(dsn = dsn, layer = layer, encoding = encoding, use_iconv = use_iconv,
swapAxisOrder = swapAxisOrder, require_geomType = require_geomType)
3: withCallingHandlers(expr, message = function(c)
invokeRestart("muffleMessage"))
2: suppressMessages(ogr_info <- ogrInfo(dsn = dsn, layer = layer,
encoding = encoding, use_iconv = use_iconv, swapAxisOrder =
swapAxisOrder,
require_geomType = require_geomType))
1: readOGR(dsn = "maps/topo_wpc.json", layer = "wpc")
sessionInfo()
R version 3.2.0 Patched (2015-04-19 r68207)
Platform: x86_64-apple-darwin10.8.0 (64-bit)
Running under: OS X 10.8.5 (Mountain Lion)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] rgdal_0.9-2 sp_1.1-0
loaded via a namespace (and not attached):
[1] MASS_7.3-40 colorspace_1.2-6 scales_0.2.4 plyr_1.8.1
[5] tools_3.2.0 gtable_0.1.2 reshape2_1.4.1 Rcpp_0.11.5
[9] ggplot2_1.0.1 grid_3.2.0 stringr_0.6.2 digest_0.6.8
[13] proto_0.3-10 munsell_0.4.2 lattice_0.20-31
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--
Roger Bivand
Department of Economics, Norwegian School of Economics,
Helleveien 30, N-5045 Bergen, Norway.
voice: +47 55 95 93 55; fax +47 55 95 91 00
e-mail: roger.biv...@nhh.no
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