gate(meuse.grid["dist"], my_blpi, mean)
> spplot(a)
>
> Package raster may have routines that do the same thing faster for
> large
> raster data. In raster, ``aggregate'' has a very different meaning.
>
>
> On 11/03/16 11:07, Alexander
Hello All,
I've been working to be able to make elevation profiles from a DEM along
a swath, rather than just a line (thanks to Forrest Stevens for the help
so far). To that end, I've made a function, create_perp_buffers, that
creates polygons perpendicular to, and along, a transect (see grap
Hello All,
I've done this in ArcMAP, but further requirements are making it harder
to do it there, so was hoping I can do it in R.
I have SRTM DEM rasters, and want to create an elevation profile. This
profile is drawn along a polyline connecting 10 GPS points. I was able
to do all that in
;rgdal")
Package: rgdal
Title: Bindings for the Geospatial Data Abstraction Library
Version: 0.7-8
Date: 2012-01-18
thanks,
allie
On 3/30/2012 9:42 AM, Barry Rowlingson wrote:
> On Fri, Mar 30, 2012 at 3:15 PM, Alexander Shenkin wrote:
>> Hi folks,
>>
>> I'm openi
Hi folks,
I'm opening some ESRI shapefiles with readOGR. R seems to keep open
file handles on the files opened. Is there any way to close those
handles without quitting R? I don't see a read-only option on readOGR,
nor do I see any close methods. I've tried GDAL.close(x), but I get
errors sayi
gt; On Thu, Mar 15, 2012 at 6:08 AM, Alexander Shenkin <mailto:ashen...@ufl.edu>> wrote:
>
> Hello folks,
>
> I have two data sources: an ESRI shapefile (UTM/WGS84 projection) of
> numerous polygons, each of which have one of two values (burned
> [=1] and
&g
Hello folks,
I have two data sources: an ESRI shapefile (UTM/WGS84 projection) of
numerous polygons, each of which have one of two values (burned [=1] and
unburned [=2]); and a set of X/Y distances from the corner of the
polygon that represent tree locations. I'd like to tag each X/Y point
in the
ction
In the meantime, another dubious workaround is to:
rotate(as.polygonal(as.mask(union.owin(square(),disc()
perhaps fiddling with the pixel size beforehand.
thanks,
allie
On 1/17/2011 9:39 PM, Rolf Turner wrote:
>
> On 18/01/2011, at 9:47 AM, Alexander Shenkin wrote:
>
Hello Folks,
I'm getting an error trying to rotate after union operations:
library(spatstat)
library(gpclib)
spatstat.options(gpclib=TRUE)
rotate( union.owin( square(), disc() ) )
Polygon contains duplicated vertices
Error in owin(poly = bdry, unitname = unitname
