Message-ID: <CAGfc75nCg0PHnLrdDUd28WCRLTnax8Zr_r4pNkrme6+mv9Lp_A@mail.gmail.com>
Date: 2011-09-22T09:29:30Z
From: Mathieu Rajerison
Subject: [spatstat] problem with a psp Line Segment Pattern when plotting and pointsOnlines performing
Hi,
I Have a problem with a psp object.
I can't plot it, neither perform a pointsOnLines calculation on it.
---
Here is what I obtain with my different operations:
> track <- readOGR("voie.shp", "voie")
OGR data source with driver: ESRI Shapefile
Source: "voie.shp", layer: "voie"
with 1 features and 14 fields
Feature type: wkbLineString with 2 dimensions
> track.psp <- as(track, "psp")
Message d'avis :
In as.psp.SpatialLinesDataFrame(from) : 13 columns of data frame discarded
> plot(track.psp)
Erreur dans image.default(c(893999.767449278, 895777.422954333), c(Inf, -Inf
:
'x' and 'y' values must be finite and non-missing
#plot(track) is OK
> pts <- pointsOnLines(track.psp, eps=50)
Erreur dans ppp(x = x, y = y, window = win) :
all coordinate values are NA or NaN
---
Any help would be appreciated.
The related SpatialLinesDataFrame track object is attached to this mail if
you'd like to have a look..
Thanks!
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