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<div data-externalstyle="false" dir="ltr" style="font-family: 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei UI', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif';font-size:12pt;"><div>From the documentation, I understood 0 is one form of the NULL representation for the mask, with other values representing non-masked areas. </div><div><br></div><div>“Grid cells in the MASK map containing <tt>0</tt> or <tt>NULL</tt>
will replace data with NULL, while cells containing other values will allow
data to pass through unaltered.
”<br></div><div data-signatureblock="true"><div><br></div><div>Sent from Windows Mail</div><div><br></div></div><div style="padding-top: 5px; border-top-color: rgb(229, 229, 229); border-top-width: 1px; border-top-style: solid;"><div><font face=" 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei UI', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif'" style='line-height: 15pt; letter-spacing: 0.02em; font-family: "Calibri", "Segoe UI", "Meiryo", "Microsoft YaHei UI", "Microsoft JhengHei UI", "Malgun Gothic", "sans-serif"; font-size: 12pt;'><b>From:</b> <a href="mailto:jctorres@ugr.es" target="_parent">jctorres</a><br><b>Sent:</b> Friday, June 20, 2014 1:01 AM<br><b>To:</b> <a href="mailto:cboscari@sbcglobal.net" target="_parent">Christopher Boscarino</a>, <a href="mailto:grass-user@lists.osgeo.org" target="_parent">grass-user@lists.osgeo.org</a></font></div></div><div><br></div><div dir="">
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<p>"The mask is just 0 and 1’s"<br>
you must use null and non null<br><br></p>
<p>Enviado con Aquamail para Android<br>
<a href="http://www.aqua-mail.com" target="_parent">http://www.aqua-mail.com</a></p>
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<p style="margin: 10pt 0px; color: black;">El 20 de junio de 2014 09:33:34
<cboscari@sbcglobal.net> escribio:</p>
<blockquote class="gmail_quote" style="margin: 0px 0px 0px 0.75ex; padding-left: 0.75ex; border-left-color: rgb(128, 128, 128); border-left-width: 1px; border-left-style: solid;"><div>I
am not sure what you mean by “query” the map- under 6.4.3, when I open
my map with the mask file in my mapset, the map raster appears with the
sections I want visible, the sections I don’t want are not visible and
excluded from calculations. This is I think the expected
behavior?</div><div>Under the beta 2 in both Windows and Linux (Ubuntu
Trusty) I have tried changing the color table on the underlying
map raster but get the same result- opening the raster with
the mask present in the mapset blanks out everything, removing the mask
displays the entire raster. The color table I’m using is greyscale. The
mask is just 0 and 1’s, but I tried changing the color table there, no
difference. If I delete the mask file, the entire underlying raster is
displayed. </div><div>I verified the mask does contain both 0’s and 1’s,
and like I said, it does work fine under 6.4.</div><div>So I am stumped.
</div><div>Chris<br></div><div data-signatureblock="true"><div><br></div><div>Sent from Windows
Mail</div><div><br></div></div><div style="padding-top: 5px; border-top-color: rgb(229, 229, 229); border-top-width: 1px; border-top-style: solid;"><div><font face=" 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft YaHei UI', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif'" style='line-height: 15pt; letter-spacing: 0.02em; font-family: "Calibri", "Segoe UI", "Meiryo", "Microsoft YaHei UI", "Microsoft JhengHei UI", "Malgun Gothic", "sans-serif"; font-size: 12pt;'><b>From:</b> <a href="mailto:neteler@osgeo.org" target="_parent">Markus
Neteler</a><br><b>Sent:</b> Thursday, June 19, 2014 10:21
PM<br><b>To:</b> <a href="mailto:cboscari@sbcglobal.net" target="_parent">Christopher Boscarino</a><br><b>Cc:</b> <a href="mailto:grass-user@lists.osgeo.org" target="_parent">grass-user@lists.osgeo.org</a></font></div></div><div><br></div><div dir=""><div id="readingPaneBodyContent">Chris,<br><br>On Thu, Jun 19, 2014
at 3:32 AM, <cboscari@sbcglobal.net> wrote:<br>> Hi
Everyone,<br>><br>> I am having an issue that I can’t seem to resolve
using the beta2 version<br>> under both Windows or Linux, as well as
daily snapshots under the Ubuntu<br>> version.<br>><br>>
Basically, a raster mask file that I am using under the current version
of<br>> grass 7 beta “blanks” out the underlying raster- that is
the entire display<br>> area is white, although both rasters (my raster
map and the mask) appear as<br>> layers. If I remove the mask, the map
area is again entirely visible.<br><br>Did you actually query the
map(s)?<br><br>> It worked correctly back in December with the stable
version as well as the<br>> snapshot of version 7 (then). Now the mask
only works under 6.4.<br>> I am have looked on the website and the
documentation to see if there were<br>> any changes made to raster
masks, but am unable to find any changes.<br><br>The raster mask management
is pretty much the same for years.<br><br>Perhaps it is just related to the
color table you use?<br><br>Markus<br></div></div>
</blockquote>
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