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<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 have met a
problem when overlaying polyline boundary on each contour plots
within one panel. It seems that whatever how many sentences with
gsn_add_shapefile_polylines added, there is always one boundary on
one plot. <br>
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<p style="margin-bottom: 0in; line-height: 100%"><br>
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<p style="margin-bottom: 0in; line-height: 100%">How can I add for
all four plots? Thanks in
advance,
</p>
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</p>
<p style="margin-bottom: 0in; line-height: 100%">LSL</p>
<p style="margin-bottom: 0in; line-height: 100%"><br>
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<p style="margin-bottom: 0in; line-height: 100%">The script and
figure is attached.</p>
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<style type="text/css">p { margin-bottom: 0.1in; line-height: 115% }a:link { so-language: zxx }</style></p>
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