[R-sig-Geo] plotKML::plotKML creates multiple errors in Google Earth (Ubuntu 14.10)

[Guido Schulz]

Hi there,

I am trying to use the R package *plotKML* to plot a
sp::SpatialPolygonDataframe in *GoogleEarth*. I am using Ubuntu 14.10.
Unfortunately, I facing various errors here...

Here my reproducable example in R:

############################################
    library("plotKML")
    library("CARBayes")
    library("sp")
    data(spatialhousedata)
    names(spatialhousedata at data)
    proj4string(spatialhousedata) <- CRS("+proj=utm
                +zone=33 +ellps=GRS80 +units=m +no_defs")
    plotKML(spatialhousedata, var.name="price")
############################################

First, R spits out a lot of error lines:

#############################################
    Plotting the first variable on the list
    KML file opened for writing...
    Reprojecting to +proj=longlat +datum=WGS84 ...
    Writing to KML...
    Closing  spatialhousedata.kml
    [0319/101818:ERROR:net_util.cc(2195)] Not implemented reached in
bool net::HaveOnlyLoopbackAddresses()
    [0319/101819:ERROR:nss_ocsp.cc(581)] No URLRequestContext for OCSP
handler.
    [0319/101819:ERROR:nss_ocsp.cc(581)] No URLRequestContext for OCSP
handler.
    [0319/101819:ERROR:nss_ocsp.cc(581)] No URLRequestContext for OCSP
handler.
    [0319/101819:ERROR:nss_ocsp.cc(581)] No URLRequestContext for OCSP
handler.
...
...
...
#############################################

Then *GoogleEarth* opens and welcomes me with this error message
(which I translated from German):

----------------------------
*Polygons bound to the ground are not supported*

Polygons bound to the ground can only be displayed as boundaries on
your computer. Your graphics does not support this function.
----------------------------

Then it finally plots only the boundaries of *spatialhousedata* instead
of the coloured polygons (choropleth map) of spatialhousedata at data$price.

Here is my graphics info from Ubuntu:

-----------------------------
    me at me-ThinkPad-T420:~$  sudo lshw -c video

      *-display
           Beschreibung: VGA compatible controller
           Produkt: 2nd Generation Core Processor
                    Family Integrated Graphics Controller
           Hersteller: Intel Corporation
           Physische ID: 2
           Bus-Informationen: pci at 0000:00:02.0
           Version: 09
           Breite: 64 bits
           Takt: 33MHz
           Fähigkeiten: msi pm vga_controller bus_master cap_list rom
           Konfiguration: driver=i915 latency=0
           Ressourcen: irq:42 memory:f0000000-f03fffff
                       memory:e0000000-efffffff ioport:5000(Größe=64)
------------------------------

And this is the version info from Google Earth:

-----------------------------
    Google Earth: 7.1.2.2041
    Build-Date: 10/7/2013
    Build-Time: 12:17:00 nachmittags
    Renderer: OpenGL
    OS: Linux (3.13.0.0)
    Graphics Driver: Intel Open Source Technology Center
-----------------------------

*Any ideas how to solve this?*

Best,

Guido