<p>Hi Carlos!<br>
No se me ocurrio trabajarlo en raster. Es un ejercicio que se planteo desde una catedra de la facultad. Antiguamente trabajamos con Idrisi pero a partir de ahora queremos q los alumnos usen open source.<br>
Desde raster es mas sencillo?<br>
El area de estudio a conservar fue creada de forma arbitraria solo para aprender la tecnica.<br>
Gracias<br>
Saludos desde la Patagonia.<br>
Mariana.</p>
<div class="gmail_quote">El 17/08/2015 10:12, "Carlos Cerdán" <<a href="mailto:sig.upagu@gmail.com">sig.upagu@gmail.com</a>> escribió:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div>Hi Mariana:<br><br></div>If I understand you well, you need to create a new field, making an expresssion in field calculator, something as:<br><br></div><div>case<br>when conservative>=1 and conservative<4 then 1<br></div><div>when conservative>=4 and conservartive<32 then 0<br></div><div>end<br><br></div><div>After that, you can try intersection... or union.<br><br></div><div>What about to work as raster?<br><br></div><div>Saludos desde Perú<br><br></div><div>Carlos Cerdán<br></div></div><div class="gmail_extra"><br><div class="gmail_quote">2015-08-16 23:42 GMT-05:00 Mariana Buzzi <span dir="ltr"><<a href="mailto:marianabuzzi86@gmail.com" target="_blank">marianabuzzi86@gmail.com</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div>HELLO Guys!!</div><div><br></div><div>I want to make a demarcation of a nature reserve area, considering the wealth of species and the conservation value of each. For this purpose in the area of study I designed a grilling in which I included the species richness and other gridding the area in which I included the conservative value species.</div><div><br></div><div>What I do now is a relclasificación of these data as follows:</div><div>For cells with conservative values [1-4) set the value of 1.</div><div>For cells with conservative [4-32 values) set to 0.</div><div><br></div><div>Once this is done, I want to make an intersection of information, to establish the relationship between the areas defined as priority and species richness.</div><div><br></div><div>My problem starts to perform the mecionada reclassification, ie designate values of 0 and 1 at intervals raised. The other problem is how do I make the crossing of information? What function the qgis?</div><div><br></div><div>Thank You !!!!</div><div>I await your news !!!!</div><div><br></div><div>PS: I speak Spanish.</div></div>
<br>_______________________________________________<br>
Qgis-user mailing list<br>
<a href="mailto:Qgis-user@lists.osgeo.org" target="_blank">Qgis-user@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" rel="noreferrer" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br></blockquote></div><br></div>
<br>_______________________________________________<br>
Qgis-user mailing list<br>
<a href="mailto:Qgis-user@lists.osgeo.org">Qgis-user@lists.osgeo.org</a><br>
<a href="http://lists.osgeo.org/mailman/listinfo/qgis-user" rel="noreferrer" target="_blank">http://lists.osgeo.org/mailman/listinfo/qgis-user</a><br></blockquote></div>