[R-sig-Geo] cannot open: HTTP status was '403 Forbidden' The "sensor" parameter specified in the request must be set to either "true" or "false".

[Anisha Kaul]

The "mow.R" now contains:
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library (RgoogleMaps)
png (filename="RgoogleMaps-package_%03d_med.png", width=480, height=480)

MyMap <- GetMap(markers =
'40.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc',
sensor = "false", destfile = "MyTile1.png");

tmp <- PlotOnStaticMap(MyMap,lat = c(40.702147,40.711614,40.718217),
lon = c(-74.015794,-74.012318,-73.998284), cex=1.5,pch=20,col=c('red',
'blue', 'green'), add=F)
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Executing this from R results in:
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> source('mow.R')
[1] "Note that when center and zoom are not specified, no meta
information on the map tile can be stored. This basically means that R
cannot compute proper coordinates. You can still download the map tile
and view it in R but overlays are not possible. Do you want to proceed
? (y/n)"
y
[1] "40.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc"
[1] "http://maps.google.com/maps/api/staticmap?size=640x640&maptype=terrain&format=png32&sensor=false40.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc"
Error in download.file(url, destfile, mode = "wb", quiet = TRUE) :
  cannot open URL
'http://maps.google.com/maps/api/staticmap?size=640x640&maptype=terrain&format=png32&sensor=false40.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc'
In addition: Warning message:
In download.file(url, destfile, mode = "wb", quiet = TRUE) :
  cannot open: HTTP status was '403 Forbidden'
>
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I copied its url and pasted it in the browser:
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http://maps.google.com/maps/api/staticmap?size=640x640&maptype=terrain&format=png32&sensor=false40.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc
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It resulted in the following message:
The Google Maps API server rejected your request. The "sensor"
parameter specified in the request must be set to either "true" or
"false".


When I change the position of "&sensor=false" in the above url, it works fine:
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http://maps.google.com/maps/api/staticmap?size=640x640&maptype=terrain&format=png3240.702147,-74.015794,blues%7C40.711614,-74.012318,greeng%7C40.718217,-73.998284,redc&sensor=false
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****How to incorporate this change in the "mow.R" file now?****
Please help;

-- 
Anisha Kaul