<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jul 30, 2015, at 9:29 PM, Nyall Dawson <<a href="mailto:nyall.dawson@gmail.com" class="">nyall.dawson@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><p dir="ltr" class=""><br class="">
On 31 Jul 2015 11:07 am, "Nick Papadonis" <<a href="mailto:npapadonis@gmail.com" class="">npapadonis@gmail.com</a>> wrote:<br class="">
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> HI Folks,<br class="">
><br class="">
> I’m trying to use the following expression to pick up the red colored routes on a map in which I used the info pointer tool to get the band values for the color.<br class="">
><br class="">
> (“m@1" < 238 AND “m@1" > 213 AND “m@2" < 123 AND “m@2" > 98 AND “m@3" < 125 AND “m@3" < 99) * 1</p><p dir="ltr" class="">Should that last check be "m@3" > 99?</p><div class=""><br class=""></div></div></blockquote>Yeah, I changed that and still same results. If I specify on > and remove the < expressions, then everything works. Very odd considering the color is within the range above (with the line you referenced fixed).</div><div><br class=""></div><div>Thanks<br class=""><blockquote type="cite" class=""><div class=""><p dir="ltr" class="">Nyall</p><p dir="ltr" class="">><br class="">
> Unfortunately, when this expression is used the resulting map is black with no other pixels for the detected color.<br class="">
><br class="">
> If I break down this expression to a simple “greater than” line for single band, then things work.<br class="">
><br class="">
> Does anyone know where this expression needs to be corrected?<br class="">
><br class="">
> Thanks again,<br class="">
> Nick<br class="">
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