[Qgis-user] Convrting vector to raster: rasterize (vecor to raster ) in QGIS

Manuel Spínola mspinola10 at gmail.com
Fri Mar 22 06:32:28 PDT 2013


Dear list members,

I am trying to convert a vector (shapefile) to a raster using the option
Conversion -> rasterize under the raster menu, however I don´t understand
the result that I am getting. The values of the raster does not make any
sense the min: -1.79769e+308 and max: 1.79769e+308


I am also doing the same thing in R and I got reasonable results, the
values of the raster goes from 1 to 10, the ones that I expected.

> raster_agri
class       : RasterLayer
dimensions  : 300, 300, 90000  (nrow, ncol, ncell)
resolution  : 207.5064, 133.2117  (x, y)
extent      : 440239.3, 502491.2, 1032331, 1072294  (xmin, xmax, ymin, ymax)
coord. ref. : +proj=tmerc +lat_0=0 +lon_0=-84 +k=0.9999 +x_0=500000 +y_0=0
+ellps=WGS84 +units=m +no_defs
data source : in memory
names       : layer
values      : 1, 10  (min, max)



And even when I import this to QGIS the values of the raster does not make
any sense either min: -2.14748e+09 and max: 2.14748e+09

Any clue on this.

Best,

Manuel

-- 
*Manuel Spínola, Ph.D.*
Instituto Internacional en Conservación y Manejo de Vida Silvestre
Universidad Nacional
Apartado 1350-3000
Heredia
COSTA RICA
mspinola at una.ac.cr
mspinola10 at gmail.com
Teléfono: (506) 2277-3598
Fax: (506) 2237-7036
Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/>
Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/>
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