<div dir="ltr"><div>Its very hard to say from just inspecting your script. There are multiple places where corners appear to be set, many of them commented out, and the readers here are left to wonder which were in effect at the time the error messages would occur. It does sound like the corners specification is not correct -- I would print values everywhere.</div><div><br></div><div>I would also note that the setting for the resource mpLambertParallel2F is not a valid value for latitude -- this looks like a setting for mpLambertMeridianF. I don't know if this is enough to confuse the projection algorithm or not. Maybe fix this first before trying anything else?</div><div><br></div><div>Rick<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Apr 9, 2019 at 1:16 AM LSL <<a href="mailto:lslrsgis@whu.edu.cn">lslrsgis@whu.edu.cn</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<p> </p>
<p style="margin-bottom:0in;line-height:100%">Dear NCL Community,</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">I am writing for a
GKS contour problem. The lines relative to this error might be
something for projection. The complete NCL script is attached.<br>
</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">; res@mpLimitMode =
"Corners" <br>
</p>
<p style="margin-bottom:0in;line-height:100%">;
res@mpLeftCornerLatF = lat2d(nlat-1,nlon-1)</p>
<p style="margin-bottom:0in;line-height:100%">;
res@mpLeftCornerLonF = lon2d(0,0)</p>
<p style="margin-bottom:0in;line-height:100%">;
res@mpRightCornerLatF = lat2d(0,0)</p>
<p style="margin-bottom:0in;line-height:100%">;
res@mpRightCornerLonF = lon2d(nlat-1,nlon-1)</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">The errors are
given
as follows:</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%">warning:TickMarkSetValues:
Zero span between tmXBDataLeftF and tmXBDataRightF, turning bottom
tickmarks off:[errno=1104]</p>
<p style="margin-bottom:0in;line-height:100%">warning:TickMarkSetValues:
Zero span between tmXTDataLeftF and tmXTDataRightF, turning top
tickmarks off:[errno=1104]</p>
<p style="margin-bottom:0in;line-height:100%">warning:TickMarkSetValues:
Zero span between tmYLDataBottomF and tmYLDataTopF, turning left
tickmarks off:[errno=1104]</p>
<p style="margin-bottom:0in;line-height:100%">warning:TickMarkSetValues:
Zero span between tmYRDataBottomF and tmYRDataTopF, turning right
tickmarks off:[errno=1104]</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
51 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --RECTANGLE
DEFINITION IS INVALID</p>
<p style="margin-bottom:0in;line-height:100%"> GKS ERROR NUMBER
-107 ISSUED FROM SUBROUTINE GSVP :</p>
<p style="margin-bottom:0in;line-height:100%"> --MAXIMUM NUMBER
OF
ERROR MESSAGES EXCEEDED</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">Any indications
would be appreciated. Thanks in advance.</p>
<p>
</p>
</div>
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</blockquote></div>