[R-sig-Geo] plot.polylist polygon plot order

[Didier Leibovici]

Thanks for this, I've seen also the function plot.Map with the parameter 
ol=NA but it is also "deprecated" (I didn't know plot.polylist was)

With plot.Map I had the message
 >plot(Z300PolMap,ol=NA,auxvar=Z300.PTA3[[1]]$v[1,],color="blue",nclass=300)
Warning message:
'plot.Map' is deprecated.
Use 'plot.Spatial' instead.
See help("Deprecated") and help("maptools-deprecated").

but I couldn't find plot.Spatial

thanks again
Didier

Roger Bivand wrote:
> On Tue, 21 Aug 2007, Didier Leibovici wrote:
> 
>> Hi there,
>>
>> With plot.polylist is there a way of not drawing the "border" or controlling 
>> the width of the border in order to diminish the vision of horror when using 
>> a smaller colour range  than the number of polygons and when you have quite a 
>> lot of polygons in your "shape".
> 
> "Horror" is in the eye of the beholder, and can be controlled easily by 
> setting the device size to something other than the default.
> 
> border="transparent"
> 
> lwd= is not passed through in this "deprecated" function - it is for the 
> SpatialPolygon class, for which unionSpatialPolygons() is also available.
> 
> Hope this helps,
> 
> Roger
> 
>> I am thinking as well of possible merging or fusion of neighbour polygons 
>> having the same color which would give an half way solution ... but I don't 
>> know the "union" polygon merging polygons function. (which should be standard 
>> I suppose ...)
>>
>> thanks
>>
>> Didier
>>
>>
>>
>>
>> Sutherland, Robert D (DFG) wrote:
>>>  Hi Jeff,
>>>
>>>  This is what I did.
>>>
>>>  HistBreaks<-quantile(datafileDf$nhunters,probs=c(0.1,0.2,
>>>  0.4,0.6,0.8,0.9,1.0),na.rm=TRUE)
>>>  np<-findInterval(datafileDf$nhunters, histBreaks, all.inside=TRUE)
>>>  colorsToUse<-colorSchemeV5
>>>  plot.polylist(datafilePolys, col=colorsToUse[np],  forcefill=FALSE)
>>>  plot.polylist(datafilePolys,  density = c(-1,20,20,-1,-1,-1,-1)[np],
>>>  angle=c(0,0,90,0,0,0,0)[np], forcefill=FALSE,add=TRUE)
>>>
>>>  the first plot.polylist plots the outline of the polygon, the second
>>>  call "colors" the polygon.
>>>
>>>  I hope this helps.
>>>
>>>  Bob
>>>
>>>  -----Original Message-----
>>>  From: r-sig-geo-bounces at stat.math.ethz.ch
>>>  [mailto:r-sig-geo-bounces at stat.math.ethz.ch] On Behalf Of Jeff Jorgensen
>>>  Sent: Wednesday, July 18, 2007 9:30 AM
>>>  To: r-sig-geo at stat.math.ethz.ch
>>>  Subject: [R-sig-Geo] plot.polylist polygon plot order
>>>
>>>  Hello,
>>>
>>>  I've imported a shapefile of polygons (R v2.5.1 winxp, maptools v0.6-13)
>>>
>>>  and I'm trying to assign colors to polygons in plot.polylist().  Is there
>>>  a way to force the order in which polygons are plotted get the correct
>>>  color associations to the corresponding polygons?
>>>
>>>  Best regards,
>>>
>>>  Jeff
>>>
>>>
>>>
>>
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> 


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