[R-sig-Geo] transform an image to a shapefile

[Julian Burgos]

Julia, what do you mean with "shapefile"?  Shapefiles are for vectorial 
data (points, lines, polygons).  Your data appears to be a raster.  What 
exactly do you want to do?

On 10/12/2012 11:01 AM, Julia Chacon Labella wrote:
> Hello to everybody,
>
> I have an image with the structure that is showed below, and I need to
> convert it to a shapefile, any idea?
>
> str(image)
>
> List of 10
>   $ v     : num [1:201, 1:240] NA NA NA NA NA NA NA NA NA NA ...
>   $ dim   : int [1:2] 201 240
>   $ xrange: num [1:2] -0.0114 11.8824
>   $ yrange: num [1:2] -0.0094 9.9346
>   $ xstep : num 0.0496
>   $ ystep : num 0.0495
>   $ xcol  : num [1:240] 0.0134 0.0629 0.1125 0.1621 0.2116 ...
>   $ yrow  : num [1:201] 0.0153 0.0648 0.1143 0.1637 0.2132 ...
>   $ type  : chr "real"
>   $ units :List of 3
>    ..$ singular  : chr "unit"
>    ..$ plural    : chr "units"
>    ..$ multiplier: num 1
>    ..- attr(*, "class")= chr "units"
>   - attr(*, "class")= chr "im"
>
> Thank you very much for your attention!!
>
> Julia
>
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>
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-- 
Julian Mariano Burgos, PhD
Hafrannsóknastofnunin/Marine Research Institute
Skúlagata 4, 121 Reykjavík, Iceland
Sími/Telephone : +354-5752037
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