Hello,<div>I have some map in ShapeFile and I am using OGR to display it. I folow the example od OGR website: <span class="Apple-style-span" style="font-family: 'Lucida Grande', Verdana, Geneva, Arial, sans-serif; font-size: 12px; "><a href="http://gdal.org/ogr/ogr_apitut.html" style="color: rgb(27, 119, 197); font-weight: normal; text-decoration: none; ">OGR C++ API Read/Write Tutorial</a>(<span class="Apple-style-span" style="font-family: arial; font-size: small; "><a href="http://gdal.org/ogr/ogr_apitut.html">http://gdal.org/ogr/ogr_apitut.html</a>). Unfortunately that way is very slow. I have map of whole country(only roads) and even when I try to display onlu one big city and I set spatial filter it takes very much times. Could you tell me if gdal/ogr has oportunity to read big files in faster way?</span></span></div>
<div><span class="Apple-style-span" style="font-family: 'Lucida Grande', Verdana, Geneva, Arial, sans-serif; font-size: 12px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; "><br></span></span></div>
<div><span class="Apple-style-span" style="font-family: 'Lucida Grande', Verdana, Geneva, Arial, sans-serif; font-size: 12px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; ">Regards,</span></span></div>
<div><span class="Apple-style-span" style="font-family: 'Lucida Grande', Verdana, Geneva, Arial, sans-serif; font-size: 12px; "><span class="Apple-style-span" style="font-family: arial; font-size: small; ">Paweł</span></span></div>