<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Consolas;
panose-1:2 11 6 9 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="FR" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal"><span lang="EN-US">Hello<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I am trying to create a vector mbtile containing several layers (using C++ GDAL API) but it does not work. My output mbtile only contains one layer (ogrinfo only lists one layer)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">What I do is the following :<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#2B91AF">GDALDriver</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">* driver = (</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#2B91AF">GDALDriver</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">*)GDALGetDriverByName(</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#A31515">"MBTiles"</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#2B91AF">GDALDataset</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">* poDS = driver->Create(mbtiles.c_str(), 0, 0, 0,
</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:darkslategray">GDT_Unknown</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">, datasetCreationOptions);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:blue">for</span><span style="font-size:9.5pt;font-family:Consolas;color:black"> (</span><span style="font-size:9.5pt;font-family:Consolas;color:blue">auto</span><span style="font-size:9.5pt;font-family:Consolas;color:black">&
layer : </span><span style="font-size:9.5pt;font-family:Consolas;color:gray">layers</span><span style="font-size:9.5pt;font-family:Consolas;color:black">)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:black">{<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:black">
</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#2B91AF">OGRLayer</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">* oLayer = poDS->CreateLayer(layer.name_.c_str(), &srs3857_,
</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:darkslategray">wkbUnknown</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt;text-autospace:none"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#2B91AF">OGRFeature</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"> *oFeature =
</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:#2B91AF">OGRFeature</span><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">::CreateFeature(oLayer->GetLayerDefn());<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt;text-autospace:none"><span style="font-size:9.5pt;font-family:Consolas;color:black">oFeature->SetGeometryDirectly(geom);<o:p></o:p></span></p>
<p class="MsoNormal" style="text-indent:35.4pt;text-autospace:none"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">oLayer->CreateFeature(oFeature);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">}<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">GDALClose(poDS);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:9.5pt;font-family:Consolas;color:black">Any idea what is wrong ?</span><span lang="EN-US"><o:p></o:p></span></p>
</div>
</body>
</html>