Displaying 20 results from an estimated 90 matches similar to: "convert opengis wkt to geometry?"
2011 Jan 20
1
Generating time progressing line for Google Earth
Dear,
I am trying to visualise a time-progressing line (it's supposed to
represent spread patterns) using brew package and Google Earth.
The idea is to have a function which takes start and end point
geographic coordinates, as well as number of intervals to chop the path
up, and returns the collection of points segmenting this line.
Unfortunately my calculations fail for large distances,
2007 May 30
4
Connecting to PostgreSQL/PostGIS from R (rgdal?)
Hello,
I've been trying every now and then to find a cross operating system
solution that would let me access PostgreSQL (and PostGIS) from R, or to
access R from PostgreSQL. I know of pl/r, which accomplishes the
latter, but has yet to be successfully ported to Windows. Similarly,
I've tried to use Rdbi and DBI, but I haven't had luck with those on
Windows either for connecting to
2015 May 31
3
Installing TMAP in R Studio on Linux Mint
Dear Dirk et al,
What I've tried is to install libgeos-dev:
sudo apt-get install libgeos-dev
Which gives me, even after adding the ubuntugis-unstable PPA:
E: Unable to locate package libgeos-dev
So I'm a little stuck at the moment. I'm trying to install TMAP on
R-Studio, which requires a number of packages all of which rely on the
libgeos-dev being in place, and I can't seem to
2005 Dec 27
4
PostgreSQL Array field type
It seemed to me that rails extract the special database field type
(Array .. In PostgreSQL) as a string.. {'One','Two'}
wouldn't it be great if it got converted to a Ruby array directly?
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http://lists.rubyonrails.org/mailman/listinfo/rails
2010 Nov 26
1
Generating kml lines output
Dear,
I would like to generate kml file with lines (<LineString>) of
different style (definitely color, but width would also be nice to
see). However with kmlLine from maptools package I am able only to
output the single first Lines object (first row of
SpatialLinesDataFrame)
I guess the option would be to have single Lines object (instead of
list of them), but then also the style
2015 May 31
2
Installing TMAP in R Studio on Linux Mint
Copied and sent from another address:
On 31 May 2015 at 09:43, Abed W. Ayyad <imraualkays at gmail.com> wrote:
> To the R-Sig-Debian list:
>
> Hello, this is my first post to the list and I hope that making it short
> and swift does not make it come across as abrupt or rude.
>
> I'm having trouble installing the TMAP package on R-Studio on my build of
> Linux
2017 Dec 07
2
How to read or write Geolocation (RFC6442) data in SIP/PJSIP messages ?
Hello,
I'm having a look at section 13.1 from SIP Connect v2 doc (see [1]).
It refers to RFC6442 which gives the following example (sorry for its
length):
INVITE sips:bob at biloxi.example.com SIP/2.0
Via: SIPS/2.0/TLS pc33.atlanta.example.com;branch=z9hG4bK74bf9
Max-Forwards: 70
To: Bob <sips:bob at biloxi.example.com>
From: Alice <sips:alice at
2024 Nov 30
1
Save spatial data in a csv file
> print(nyc_ct_geo) Simple feature collection with 2325 features and 1
field Geometry type: MULTIPOLYGON Dimension: XY Bounding box: xmin:
913175.1 ymin: 120128.4 xmax: 1067383 ymax: 272844.3 Projected CRS: NAD83 /
New York Long Island (ftUS) First 10 features: geoid geometry 1 36061000100
MULTIPOLYGON (((972081.8 19... 2 36061000201 MULTIPOLYGON (((988548.2 19...
3 36061000600 MULTIPOLYGON
2024 May 17
0
[External] Re: Removing polygons from shapefile of Scotland and Islands
Scotland is the second feature in the UK data, so get it and split this one
MULTIPOLYGON feature into individual POLYGONS
scot = st_cast(the_uk$geometry[2],"POLYGON")
# which is the largest polygon?
which.max(st_area(scot))
[1] 1
# the first one. ok...
plot(scot[[1]]) # mainland
# add the rest of the islands for context, in grey, maybe to show they're
outside our study area:
2015 May 31
0
Installing TMAP in R Studio on Linux Mint
On Sun, May 31, 2015 at 3:33 PM, Abed W. Ayyad <abdulhadi.ayyad at uclmail.net>
wrote:
> Dear Dirk et al,
>
> What I've tried is to install libgeos-dev:
> sudo apt-get install libgeos-dev
>
I had no problem installing tmap on my Linux Mint 17.1 system:
$ cat /etc/lsb-release
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=17.1
DISTRIB_CODENAME=rebecca
2006 May 01
0
PostGIS and MySql Spatial Extensions in Rails
Hello,
This post is to announce a new release of the Spatial Adapter for Rails,
which is a plugin that adds support for columns of geometric types (point,
linestring, polygon,etc...) to ActiveRecord. Currently the only supported
databases are MySql and PostGIS.
With this release, geometric columns should behave like columns of any other
basic types in all areas: migration, data access, dumping
2015 May 31
0
Installing TMAP in R Studio on Linux Mint
On 31 May 2015 at 09:48, Abed W. Ayyad wrote:
| Copied and sent from another address:
|
|
| On 31 May 2015 at 09:43, Abed W. Ayyad <imraualkays at gmail.com> wrote:
|
| > To the R-Sig-Debian list:
| >
| > Hello, this is my first post to the list and I hope that making it short
| > and swift does not make it come across as abrupt or rude.
| >
| > I'm having trouble
2008 Jun 03
10
things I miss in wine
Hi there,
there are many issues in wine and you can work around most of them
somehow but there are few that you can not bypass.
Copy Protection:
wine seems to support a few copy protection systems, but not all. No of
course you could say that a nocd crack should be used to work around
that issue, but what if there is none available? Many games are done for
different countries in different
2009 Mar 02
2
Need help extracting info from XML file using XML package
I have an XML file that has within it the coordinates of some
polygons that I would like to extract and use in R. The polygons are
nested rather deeply. For example, I found by trial and error that I
can extract the coordinates of one of them using functions from the
XML package:
doc <- xmlInternalTreeParse('doc.kml')
docroot <- xmlRoot(doc)
pgon <-
2016 Feb 13
2
Hi Guyz !
I run R on a Fedora 23 64bit ,
I encounter this problem
*WARNING: no proj_defs.dat in PROJ.4 shared files Linking to sp version:
1.2-2 *
when trying to load library("rgdal",
lib.loc="~/R/x86_64-redhat-linux-gnu-library/3.2") and also ogr .
can any one help me in fixing this issue please
Thanks in advance
Irenge B. Jules
MSC student @ Liverpool University
email :
2008 May 24
1
Spatial Overlay - SQL - Geoprocessing
Can we by any change perform in R something similar geoprocessing or, more
advanced, Spatial SQL over vectorial data?
Paulo
[[alternative HTML version deleted]]
2018 Jul 04
1
gpg2 (GnuPG) Security Update for CentOS 6.10
Where do I get an update for gpg2 (GnuPG) for CentOS 6.10 that is compliant with CVE-2018-12020?
I'm trying to update gpg2 (GnuPG GNU Privacy Guard) on my fully updated CentOS 6.10 computer to comply with CVE-2018-12020. My system has gpg2 package? gnupg2-2.0.14-8.el6.x86_64.rpm
This package does not appear to be compliant with CVE-2018-12020.? I can not find and update anywhere. I have tried
2012 Apr 01
4
map and shapefile help
Hi,
I want to use map("state") and have the ecoregion shape (please see link)
file projected onto this.
ftp://ftp.epa.gov/wed/ecoregions/cec_na/NA_CEC_Eco_Level3.zip
ftp://ftp.epa.gov/wed/ecoregions/cec_na/NA_CEC_Eco_Level3.zip
Could someone please show me how; I have never messed with this sort of
thing.
Thanks.
--
View this message in context:
2012 Aug 17
1
RGDAL OGRwrite question
I have a quick question: It appears that in rgdal v0.7-12 (R version
2.15.1, OSX 10.6.8) writeOGR will not write a shapefile the the
current directory. Is this correct? An earlier version of rgdal must
have allowed this because I have a older script that used to work, but
doesn't now.
So, as an example, here is what I get today:
> shape = readOGR('.',
2009 Jul 14
1
Error when sampling from SpatialLines
Dear forum,
I am working in R 2.9.1 and I am trying to sample locations from a network file. Reading in nor plotting is a problem, however when I am trying to sample from the file I get the following message:
nwlim<-readShapeLines("C:/Limburg_nwshape", proj4string=CRS("+init=epsg:31300"))
plot(nwlim)
randacc<-spsample(nwlim,n=1000,"random")