<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">Hello Gerd,</span></p>
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<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">Here is more information about how I obtained my result. I used mkgmap v4107 and splitter v590. My options for DEM are :</span></p>
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<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">dem=./MySrtm1Folder</span></p>
<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">dem-dists=3312,13248,26512,53024,106048</span></p>
<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">dem-poly=./MyPolygon.poly</span></p>
<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">dem-interpolation=auto</span></p>
<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">overview-dem-dist=212096</span></p>
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<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">I do not define any polygon option for splitter. As explained in my previous email, to avoid the generation of a shadow in plain ocean, I defined a new polygon inside the correct shadow rendering area and it solved my problem. For the artifacts I described, follow this link to see what I mean : </span></p><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;"><br></span></p><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;"><a href="http://emerald-island.eu/wikka/ShadowArtifacts">http://emerald-island.eu/wikka/ShadowArtifacts</a></span></p><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;"><br></span></p><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">It was made with mkgmap version 41067 and 4126 and splitter 590 with the same result.</span></p>
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<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">Again for your great work, chapeau bas,</span></p>
<p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;"><br></span></p><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica;"><span style="font-size: 12pt;">David</span></p><p style="margin: 0px; font-stretch: normal; font-size: 12px; line-height: normal; font-family: Helvetica; min-height: 13.8px;"><span style="font-size: 12pt;"></span></p></body></html>