[R-sig-Geo] gDistance problem on RHEL 6 64-bit

Roger Bivand Roger.Bivand at nhh.no
Thu Feb 5 21:28:07 CET 2015


On Thu, 5 Feb 2015, Hollister, Jeff wrote:

> Hello all,
>
> I am having a problem with rgeos::gDistance on RHEL 6.  Everytime I try 
> to get a point to point distance, I get
>
> R: GeometryComponentFilter.cpp:34: virtual void geos::geom::GeometryComponentFilter::filter_ro(const geos::geom::Geometry*): Assertion `0' failed.
> Aborted (core dumped)
>
> This only occurs on my RHEL 6 machine.  Win 7 and Ubuntu 14.04 work fine.

The key question is how you installed rgeos and GEOS on these platforms. 
Most likely rgeos on Windows 7 is the CRAN binary statically linked to 
GEOS, and on RHEL6 and Ubuntu 14.04 rgeos is installed from source and 
links to the GEOS found on those platforms. We need the output of:

version_GEOS()

on each platform. Most likely you've not installed GEOS from source on 
either of the two Linux platforms. The cause is most likely a mismatch on 
the RHEL platform, possibly that GEOS has fallen behind C++, or that GEOS 
got updated without you re-installing rgeos. Is gDistance() the only 
function that doesn't work - can you run example(gDistance) and/or the 
examples of other functions?

Roger

>
> Some code to reproduce the problem:
> library(sp)
> library(rgeos)
> pt1<-SpatialPoints(data.frame(x=c(1,3),y=c(3,1)))
> pt2<-SpatialPoints(data.frame(x=1,y=1))
> gDistance(pt2,pt1)
>
> More info:
>> sessionInfo()
> R version 3.1.2 (2014-10-31)
> Platform: x86_64-redhat-linux-gnu (64-bit)
>
> locale:
> [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
> [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
> [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
> [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
> [9] LC_ADDRESS=C               LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
> [1] rgeos_0.3-8 sp_1.0-15
>
> loaded via a namespace (and not attached):
> [1] grid_3.1.2      lattice_0.20-29
>
> Thanks,
> Jeff Hollister
>
> *****************************
> Dr. Jeffrey W. Hollister
> Research Ecologist
> 27 Tarzwell Drive
> Narragansett, RI 02879
> (o) 401 782 9655
> hollister.jeff at epa.gov<mailto:hollister.jeff at epa.gov>
> Personal Site<http://jwhollister.com/>
> *****************************
>
>
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>
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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.Bivand at nhh.no



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