[R-sig-Geo] Fwd: Fwd: Re: plotKML on linux

[Tomislav Hengl]

This bug should not exist any more. For more details see function "path" 
in:

https://r-forge.r-project.org/scm/viewvc.php/pkg/R/AAAA.R?view=markup&root=plotkml

Please test installing plotKML again and then report if you experience 
more similar problems.

Installation instructions and a preview of the plotKML functionality are at:

http://plotkml.r-forge.r-project.org/

T. Hengl
http://www.vcard.wur.nl/Views/Profile/View.aspx?id=37263


On 01/05/2012 05:06, Tomislav Hengl wrote:
>
> On 30/04/2012 03:45, Daniel Arribas-Bel wrote:
>> Dear R-sig-geo list,
>>
>> I have succesfully installed 'plotKML' 0.1-6 under Ubuntu 11.10-32bit
>> running R 2.15. I run into an error when I try to replicate one of the
>> examples in the documentation, particularly that of kml-methods
>> (http://plotkml.r-forge.r-project.org/kml-method.html). The first one
>> runs fine but when I try to plot a SpatialPixelsDataFrame:
>>
>> ## End(Not run)
>> # Plotting a SpatialPixelsDataFrame or a Raster* object
>> data(eberg_grid)
>> coordinates(eberg_grid)<- ~x+y
>> gridded(eberg_grid)<- TRUE
>> proj4string(eberg_grid)<- CRS("+init=epsg:31467")
>> ## Not run:
>> kml(eberg_grid, colour = DEM, file ="eberg_grid-0.kml")
>>
>>
>>
>> I run into the following error:
>>
>> Error in paths(show.paths = TRUE) :
>> could not find function "shortPathName"
>>
>>
>> In fact, simply typing 'paths()' returns the same error. A bit of
>> googling seems to reveal the method 'shortPathName' appears to only
>> exist in the Win version of R, but not for linux/Mac.
>>
>> Is plotKML supposed to work only under Windows? If not, am I mising
>> something? Is there any workaround?
>
> plotKML is suppose to work on all operating systems. I do not have any
> linux system at the moment at my disposal but only a Windows OS. Our
> second developer (Pierre) only works on the Linux, so he should be able
> to help you with this problem.
>
> I discovered that the PNG file needs to be fixed for transparency
> because there is a bug in Google Earth that does not allow transparency
> of PNGs:
> http://groups.google.com/group/earth-free/browse_thread/thread/1cd6bc29a2b6eb76/62724be63547fab7
>
> The best I could figure out is to add transparency using ImageMagick.
> See the source code at:
>
> https://r-forge.r-project.org/scm/viewvc.php/pkg/R/layer.Raster.R?view=markup&root=plotkml
>
>
> I think if your installation of the animation package is correct (if it
> detects ImageMagick correctly) then your plotKML should not need to run
> the 'paths' function.
>
> I will try to test the scripts on Linux as soon as I come back to my
> office next week.
>
> thanks for your feedback!
>
> T. Hengl
> http://www.vcard.wur.nl/Views/Profile/View.aspx?id=37263
>
>>
>> Any comment/suggestion is mostly welcome. Thanks very much in advance,
>>
>> ]d[
>>
>>
>> --
>> ============================================================
>> Daniel Arribas-Bel, PhD.
>> Url: darribas.org <http://darribas.org/>
>> Mail: darribas at asu.edu <mailto:darribas at asu.edu>
>>
>> GeoDa Center for Geospatial Analysis and Computation
>> (geodacenter.asu.edu <http://geodacenter.asu.edu/>)
>> Arizona State University (USA)
>> ============================================================
>>
>
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