Hi,<br><br><div class="gmail_quote">On Tue, Jul 17, 2012 at 4:51 PM, Margherita Di Leo <span dir="ltr"><<a href="mailto:dileomargherita@gmail.com" target="_blank">dileomargherita@gmail.com</a>></span> wrote:<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="gmail_quote"><div><br>Now tried:<br> gdalbuildvrt -input_file_list elenco_aster_europa mosaic.vrt<br>(all in the same folder)<br><br>then in GRASS:<br><br>GRASS 6.4.3svn (ASTER_GDEM):~ > r.external input=/forest/ASTER-GDEM/Dem_lzw/mosaic.vrt output=mosaic --verbose<div class="im">
<br>
Projection of input dataset and current location appear to match<br></div>Proceeding with import...<div class="im"><br>Importing band 1 of 1...<br></div>Setting grey color table for <mosaic> (data range)<br>Creating support files for mosaic<div class="im">
<br>
Link to raster map <mosaic> created<br></div>GRASS 6.4.3svn (ASTER_GDEM):~ > <a href="http://r.info" target="_blank">r.info</a> map=mosaic<br> +----------------------------------------------------------------------------+<br>
 | Layer:    mosaic                         Date: Tue Jul 17 16:49:06 2012    |<div class="im"><br>
 | Mapset:   PERMANENT                      Login of Creator: leomarg         |<br> | Location: ASTER_GDEM                                                       |<br> | DataBase: /forest/GRASS/grassdata                                          |<br>
</div>
 | Title:     ( mosaic )                                                      |<div class="im"><br> | Timestamp: none                                                            |<br> |----------------------------------------------------------------------------|<br>

 |                                                                            |<br> |   Type of Map:  raster               Number of Categories: 0               |<br> |   Data Type:    CELL                                                       |<br>
</div><div class="im">
 |   Rows:         140401                                                     |<br> |   Columns:      198001                                                     |<br> |   Total Cells:  27799538401                                                |<br>

 |        Projection: Latitude-Longitude                                      |<br> |            N: 72:00:00.5N    S: 32:59:59.5N   Res: 0:00:01                 |<br> |            E: 44:00:00.5E    W: 11:00:00.5W   Res: 0:00:01                 |<br>
</div>
 |   Range of data:    min = 0  max = 0                                       |<div class="im"><br> |                                                                            |<br> |   Data Description:                                                        |<br>

 |    generated by r.external                                                 |<br> |                                                                            |<br> |   Comments:                                                                |<br>
</div>
 |    r.external input="/forest/ASTER-GDEM/Dem_lzw/mosaic.vrt" output="mos\   |<br> |    aic"                                                                    |<br> |                                                                            |<br>

 +----------------------------------------------------------------------------+<br><br></div></div></blockquote><div><br>I've imported the same map with r.in.gdal:<br><br>r.in.gdal input=/forest/ASTER-GDEM/Dem_lzw/mosaic.vrt output=mosaic --overwrite<br>
 <br></div></div><a href="http://r.info">r.info</a> map=mosaic<br> +----------------------------------------------------------------------------+<br> | Layer:    mosaic                         Date: Tue Jul 17 17:57:31 2012    |<br>
 | Mapset:   PERMANENT                      Login of Creator: leomarg         |<br> | Location: ASTER_GDEM                                                       |<br> | DataBase: /forest/GRASS/grassdata                                          |<br>
 | Title:     ( mosaic )                                                      |<br> | Timestamp: none                                                            |<br> |----------------------------------------------------------------------------|<br>
 |                                                                            |<br> |   Type of Map:  raster               Number of Categories: 6518            |<br> |   Data Type:    CELL                                                       |<br>
 |   Rows:         140401                                                     |<br> |   Columns:      198001                                                     |<br> |   Total Cells:  27799538401                                                |<br>
 |        Projection: Latitude-Longitude                                      |<br> |            N: 72:00:00.5N    S: 32:59:59.5N   Res: 0:00:01                 |<br> |            E: 44:00:00.5E    W: 11:00:00.5W   Res: 0:00:01                 |<br>
 |   Range of data:    min = -9999  max = 6518                                |<br> |                                                                            |<br> |   Data Description:                                                        |<br>
 |    generated by r.in.gdal                                                  |<br> |                                                                            |<br> |   Comments:                                                                |<br>
 |    r.in.gdal input="/forest/ASTER-GDEM/Dem_lzw/mosaic.vrt" output="mosa\   |<br> |    ic"                                                                     |<br> |                                                                            |<br>
 +----------------------------------------------------------------------------+<br><br>So I guess something is wrong with r.external..<br clear="all"><br>-- <br><span style="color:rgb(102,102,102)">Dr. Margherita Di Leo</span><font color="#666666"><br>
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