<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="">Hey Cunbo,<div class="">that's a problem that I faced many times and I haven't found a clean solution, yet. All the methods that I've used to manually define the labels have failed somehow. The "easy" solution that I'm using now is to define a new variable for your axis and then use that for plotting.</div><div class=""><br class=""></div><div class="">I believe you also have, like me, some coordinate informations in the x and y axis although the domain is idealized, that is defined only in terms of grid resolution, right? So what I've done was:</div><div class=""><br class=""></div><div class=""><font face="Menlo" size="1" class="">; 1 - defining the half-lenght of the two axis (in your case 10 km)</font></div><div class=""><div class=""><font face="Menlo" size="1" class="">half_lenght_x=10.</font></div></div><div class=""><div class=""><font face="Menlo" size="1" class="">half_lenght_y=10.</font></div></div><div class=""><font face="Menlo" size="1" class=""><br class=""></font></div><div class=""><font face="Menlo" size="1" class="">; 2 - manually compute the two axis as km</font></div><div class=""><font face="Menlo" size="1" class="">; using the longitude and latitude arrays from</font></div><div class=""><font face="Menlo" size="1" class="">; your input File</font></div><div class=""><font face="Menlo" size="1" class=""><br class=""></font></div><div class=""><div class=""><font face="Menlo" size="1" class=""> dist_x:=(half_lenght_x/180.)*(File->lon)</font></div><div class=""><font face="Menlo" size="1" class=""> dist_x@units= "km"</font></div><div class=""><font face="Menlo" size="1" class=""> dist_x@long_name = "Distance"</font></div><div class=""><font face="Menlo" size="1" class=""> dist_x@standard_name = "distance"</font></div><div class=""><font face="Menlo" size="1" class=""><br class=""></font></div><div class=""><div class=""><font face="Menlo" size="1" class=""> dist_y:=(half_lenght_y/90.)*(File->lat)</font></div><div class=""><font face="Menlo" size="1" class=""> dist_y@units= "km"</font></div><div class=""><font face="Menlo" size="1" class=""> dist_y@long_name = "Distance"</font></div><div class=""><font face="Menlo" size="1" class=""> dist_y@standard_name = "distance"</font></div></div><div class=""><font face="Menlo" size="1" class=""><br class=""></font></div><div class=""><font face="Menlo" size="1" class="">; 3 - use these two variables, which will have the same dimension as the coordinate variables, to plot</font></div><div class=""><font face="Menlo" size="1" class=""> ResC@sfXArray := dist_x</font></div><div class=""><font face="Menlo" size="1" class=""> ResC@sfYArray := dist_y </font></div></div><div class=""><br class=""></div><div class="">Note that you will need to remove any reference to the old coordinate variables from the variable that you're plotting (so any attribute...).</div><div class=""><br class=""></div><div class="">Hope that helps</div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 17 May 2017, at 09:28, Cunbo HAN <<a href="mailto:hancbo@gmail.com" class="">hancbo@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear ncl-talk,<br class=""><br class="">I am doing a contour plot with “gsn_csm_contour_map” and I want to setup XY labels manually. Like in the attached plot, how can I change the XBLabels “10w, 5w, 0, 5E, 10E” to “-10km, -5km, 0km, 5km, 10km “? Does anyone know how to modify this? Thanks very much!<div class=""><br class=""></div><div class="">Best,</div><div class="">Cunbo<div class=""><br class=""></div><div class=""><br class=""></div><div class=""><span id="cid:86C26A44-DB83-409A-BCBC-743A27E59EA1@wlan.kfa-juelich.de"><icon_shfx_50m_2d.png></span></div></div></div>_______________________________________________<br class="">ncl-talk mailing list<br class=""><a href="mailto:ncl-talk@ucar.edu" class="">ncl-talk@ucar.edu</a><br class="">List instructions, subscriber options, unsubscribe:<br class="">http://mailman.ucar.edu/mailman/listinfo/ncl-talk<br class=""></div></blockquote></div><br class=""><div class="">
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