HI Folks, 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.
(“m@1" < 238 AND “m@1" > 213 AND “m@2" < 123 AND “m@2" > 98 AND “m@3" < 125 AND “m@3" < 99) * 1 Unfortunately, when this expression is used the resulting map is black with no other pixels for the detected color. If I break down this expression to a simple “greater than” line for single band, then things work. Does anyone know where this expression needs to be corrected? Thanks again, Nick _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
