[R-sig-Geo] Add text INSIDE spplot map

[Tom Gottfried]

Hi again,

Am 11.07.2011 14:32, schrieb Jose Iparraguirre:
> Thanks Tom,
>
> Here's an example using the usual dataset, meuse.
>
>> data(meuse)
>> coordinates(meuse) = ~x+y
>> l1 = list("sp.text", c(179050, 330877),"Hola",col="red",font=2)

Explicitly giving first=FALSE in this line

l1 = list("sp.text", c(179050, 330877),"Hola",col="red",font=2, first=FALSE)

does not help. I think this is not the documented behaviour, as the layout item seems to be drawn 
before the main spplot object, which corresponds to first=TRUE. I'm sure Edzer Pebesma can clarify this.

Regards!
Tom

>> spplot(meuse, c("ffreq"), sp.layout=list(l1), col.regions= "black",
> + pch=c(19), key.space=list(x=0.1,y=.95,corner=c(0,1)))
>
> Here, "Hola" is printed 'within the cloud', and it's not very legible -imagine thousands of additional points. I forgot to mention that I'd experimented with first=F/T, and the only change is that with first=TRUE, of course, the text 'Hola' is not printed.
> So, let me change the request of advice slightly: can I put such a text in such coordinates within a box, filling the box with a different colour, so that the text becomes more visible? (neither 'fill' nor 'bty' seem to work as elements of the list...).
>
> Thanks in advance, and regards to everyone!
>
> José
>
>
>
> José Iparraguirre
> Chief Economist
> Age UK
>
> T 020 303 31482
> E Jose.Iparraguirre at ageuk.org.uk
>
> Tavis House, 1- 6 Tavistock Square
> London, WC1H 9NB
> www.ageuk.org.uk | ageukblog.org.uk | @AgeUKPA
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>
>
>
> -----Original Message-----
> From: Tom Gottfried [mailto:tom.gottfried at tum.de]
> Sent: 11 July 2011 08:00
> To: Jose Iparraguirre
> Subject: Re: [R-sig-Geo] Add text INSIDE spplot map
>
> Hi,
>
> first guess: did you try to add 'first=FALSE' to sp.layout (see ?spplot)?
>
> Am 08.07.2011 17:09, schrieb Jose Iparraguirre:
>> Hi,
>>
>> Sorry if I'm not accompanying a piece of code, but the following question is general enough.
>> I want to add some text markers/labels (say, the names of a couple of cities) within the figure plotted using spplot (in the sp library). I'm plotting spatial points.
>> Using sp.layout I can add a text outside the points, but when I change the coordinates to place the text within the cloud of points, it seems to go 'behind' the points. Is there a way of bringing the text forward or 'superimpose' it on top of the points mapped with spplot?
>
> For me it's not clear what means "outside the points" and "within the cloud of points". Maybe a
> reproducible example would clarify, though.
>
> Tom
>
>> Thanks,
>>
>> José
>>
>> José Iparraguirre
>> Chief Economist
>> Age UK
>>
>> T 020 303 31482
>> E Jose.Iparraguirre at ageuk.org.uk<mailto:Jose.Iparraguirre at ageuk.org.uk>
>>
>> Tavis House, 1- 6 Tavistock Square
>> London, WC1H 9NB
>> www.ageuk.org.uk<http://www.ageuk.org.uk>   | ageukblog.org.uk<http://ageukblog.org.uk/>   | @AgeUKPA<http://twitter.com/ageukpa>
>>
>>
>>
>>
>>
>>
>>
>>
>> Age UK  Improving later life
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