<div dir="ltr"><div>Hi</div><div><br></div><div>I have two raster files one for vegetation and one for population density.</div><div>The two rasters (tif's) are at different scales</div><div><br></div><div>I am using value based classification to paint the map green where vegetation values are high.</div><div>Is there a way I can classify based on values from the two separate files in the same layer</div><div>I can't see how this will work as you can only have one data item per layer?? (but worth asking)</div><div><br></div><div>I am wanting to be able to do something like</div><div><pre style="overflow:auto;padding:10px;line-height:1.2em;border:1px solid rgb(198,201,203);font-size:1.2em;margin-top:1.5em;margin-bottom:1.5em">EXPRESSION ([veg] <= 50 and [population] > 500)</pre></div><div><br></div><div>The only option I can think of is to make the two files into a single multiband tiff? This seems wasteful as one is much lower resolution then the other. </div><div><br></div><div>thoughts??</div><div><br></div><div>thanks</div><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><div><font face="arial" size="2" style="font-family:arial;font-size:small">Matt :)</font><br style="font-family:arial;font-size:small"><br></div><a href="http://www.wildwalks.com/office/newsletters/" target="_blank"></a></div></div></div>
</div>