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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hey, GrADS list.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m getting an error with xy2gr – it’s duplicating the results of xy2w but only under specific circumstances. I’m using a Cartesian domain that’s not georeferenced (km from the origin as opposed to lat/lon on the planet). The two functions give similar results up to a point. To wit:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Position = 5.15564 2.55131 1 0<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 2.55131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1179.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2w 5.15564 2.55131 <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Lon = 3862.26 Lat = -1179.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 1.55131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1579.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 3.55131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = 74.3479<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 2.55131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1179.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 2.65131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1139.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 2.75131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1099.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 2.85131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1059.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 2.95131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1019.48<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 3.05131<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = 68.7923<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 3 <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = -1000<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2gr 5.15564 3.01<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Xdim = 288.285 Ydim = 68.3333<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2w 5.15564 3.01 <o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Lon = 3862.26 Lat = -996<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'><o:p> </o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>ga-> q xy2w 5.15564 3.00<o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-family:"Courier New"'>Lon = 3862.26 Lat = -1000<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The takeaway here is that when the position moves above -1000 “latitude,” then xy2gr is giving me the y-position grid index. Below that, then it’s the “world” coordinate. I don’t think the 3 means anything, here (just a guess).<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Operator-error goof or bug?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>~Dave<o:p></o:p></p></div></body></html>