<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_1_1441771707799_2829">Dear users,</div><div id="yui_3_16_0_1_1441771707799_2829"><br></div><div id="yui_3_16_0_1_1441771707799_2829">I try to overlay a contour over another contour.</div><div id="yui_3_16_0_1_1441771707799_2829">My problem is :</div><div id="yui_3_16_0_1_1441771707799_2829">when I overlay I can only see the last (in order) contour.</div><div id="yui_3_16_0_1_1441771707799_2829">I have tried to use :</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">prec_res@cnFillOpacityF = .7<br></div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">it not works as i would expect, colors are merged,</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">I would like to really have "prec_plot" over "to_plot".</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">In my color triplet for prec_plot, when data=0 white color is (user) defined, not transpartent, is the problem there ?.</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr"><br></div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">Here is a part of my code :</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr"><br></div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">;---------------</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">;MAP</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">;---------------</div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr"><br></div><div id="yui_3_16_0_1_1441771707799_2829" dir="ltr">res@mpOutlineDrawOrder = "PostDraw" <br></div><div id="yui_3_16_0_1_1441771707799_2829" class="">res@gsnDraw = False</div><div id="yui_3_16_0_1_1441771707799_2829" class="">res@gsnFrame = False</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">plot = gsn_csm_map(wks,res)</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr"><br></div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">;------------------</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">;TO_PLOT</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">;------------------</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr"><br></div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">gsn_define_colormap(wks, to_colors) ; RGB triplet user defined<br></div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">to_plot = gsn_csm_contour(wks, to_cloud,to_res)</div><div id="yui_3_16_0_1_1441771707799_2829" class=""><br class=""></div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">;---------------------</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">;PREC_PLOT</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">;---------------------</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr"><br></div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">gsn_define_colormap(wks, prec_color) ; RGB triplet user defined</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">prec_plot = gsn_csm_contour(wks,prec,prec_res)<br></div><div id="yui_3_16_0_1_1441771707799_2829" class=""><br></div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">overlay (plot, to_plot)</div><div id="yui_3_16_0_1_1441771707799_2829" class="">overlay (plot, prec_plot)</div><div id="yui_3_16_0_1_1441771707799_2829" class="" dir="ltr">draw(plot)<br></div></div></body></html>