<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;">Hi Mary,<div> Thank you very much for your prompt response and helpful information ! </div><div><br></div><div>1) in order to plot non-ocean part, I added the following lines in my code.</div><div><span style="font-family: monospace, monospace; font-size: small;">res.mpFillOn = True</span></div><div><div class="gmail_default" style="font-size: small; display: inline;"><font face="monospace, monospace">res.mpOceanFillColor = "white"</font></div></div><div><div class="gmail_default" style="font-size: small; display: inline;"><font face="monospace, monospace"><br></font></div></div><div>The resulting figure still contains ocean. Then I added </div><div><div class="gmail_default" style="font-size: small;"><font face="monospace, monospace">res.mpFillDrawOrder = "PostDraw"</font></div><div class="gmail_default" style="font-size: small;">​</div></div><div class="gmail_default">This time, the ocean part disappeared. But the color scale is greatly changed in the figure. I attach two figures in the below to show their effects. isccp_19V.000001.png with PostDraw added, and isccp_19V.000001.png.old without Postdraw.</div><div class="gmail_default"><br></div><div class="gmail_default">How can I have the same color as isccp_19V.000001.png.old, but without ocean ?</div><div><br></div><div><br></div><div><br></div><div>2) I also looked at how to fill the small islands in your examples. There are something that I would like to clarify.</div><div> It seems that , we need the latitude/longitude of grid center, and also information about grid corner, in order to constrain the interpolation.</div><div> In my case, between any two grids, the distance between their center is 0.25 degree in latitude, and varying in longitude. So I have the distance between two grid center in latitude and longitude (in degree). My question is : how to use them ? The geodesic example just read in the corner_lat/lon, but are they the latitude/longitude of the 4 corners of a grid ? if so, which corder is the first one, and in which order are they organized ? (In the mpas example, they seem to read in latVertex and lonVertex and they define latvoc/lonvoc. Yet I have the same question….)</div><div><br></div><div><br></div><div>Thank you again !!</div><div><br></div><div>Best wishes,</div><div><br></div><div>Xiaoni</div><div><br></div><div><br></div><div> </div></body></html>