[R-sig-Geo] Step characteristics on raster maps (Mathieu Basille)

[Clément Calenge]

Or, if you want to use this approach for your problem (transforming a 
line into a polygon and then rasterize), a solution would be to use the 
function "buffer" from the package adehabitatMA (on RForge), which 
calculates a buffer from a SpatialLines.
Best regards,

Clément.


On 10/03/2010 05:59 PM, Mathieu Basille wrote:
> Dear Arnaud,
>
> This is actually on my todo list, a test with the polygon approach, 
> although I'm not sure how to start to "polygonize" the segments... But 
> in the end, that would allow a performance comparison with different 
> approaches (and that would also allow the calculation of the 
> characteristics of buffers around the segments, which might be 
> interesting for us, too).
>
> Thanks for the suggestion,
> Mathieu.
>
>
> Le 03/10/2010 10:04, Arnaud Mosnier a écrit :
>> Hi Mathieu,
>>
>> An easy workaround could be to convert each segment to a polygon doing a
>> very small buffer around each segment then use the overlay method to
>> obtain info in each of these polygon.
>>
>> Arnaud
>


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Clément CALENGE
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