Assuming your map area can be described as a closed polygon, these functions
would tell you which points lie within the boundaries of the polygon.
David C
From: Alaios [mailto:ala...@yahoo.com]
Sent: Thursday, February 4, 2016 1:34 AM
To: David L Carlson; r-help@r-project.org
Subject: Re: [R]
Thanks. I am using distm of the geoshere package.I still wonder if there is a
package that can tell me if a gps coordinate or not falls inside my area that
is defined as:
bbox <- c(min(PlotPoints[, 1])-0.001, min(PlotPoints[, 2])-0.001,
max(PlotPoints[, 1])+0.001, max(PlotPoints[, 2])+0.001)
That is a great tip thanks.That would indeed bring me points that are the
closes to my area.. but if I am not wront that returns points that are part of
a circle surface. It might be that I get a point that is just 50 meters outside
of my map area. Is not that true? I would need after I find
Look at the point.in.polygon() and over() functions in package sp.
-
David L Carlson
Department of Anthropology
Texas A University
College Station, TX 77840-4352
-Original Message-
From: R-help [mailto:r-help-boun...@r-project.org] On Behalf Of Alaios
On 03/02/16 11:04, Alaios via R-help wrote:
Dear all,I have GPS coordinates (one vector for longitude and one for
latitude: GPSLong and GPSLat) of small are that is around 300meters X
300 meters (location falls inside UK).At the same time I have two
more vectors (Longitude and Latitude) that
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