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Thanks</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>发件人:</b> Werner Macho <werner.macho@gmail.com><br>
<b>发送时间:</b> 2023年3月27日 23:18<br>
<b>收件人:</b> Even Rouault <even.rouault@spatialys.com><br>
<b>抄送:</b> Alessandro Pasotti <apasotti@gmail.com>; 余 绍健 <shaojian.yu@hotmail.com>; qgis-developer@lists.osgeo.org <qgis-developer@lists.osgeo.org><br>
<b>主题:</b> Re: [QGIS-Developer] How does QGIS parses the shapefile so quickly</font>
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<div dir="ltr">Hi!
<div>Just to add some side information regarding Shapefiles:</div>
<div>(ignore it if understanding shapefiles ist a must in your case)</div>
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<div><a href="http://switchfromshapefile.org/">http://switchfromshapefile.org/</a><br>
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<div>;)</div>
<div>regards</div>
<div>Werner</div>
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<div dir="ltr" class="x_gmail_attr">On Mon, Mar 27, 2023 at 5:16 PM Even Rouault via QGIS-Developer <<a href="mailto:qgis-developer@lists.osgeo.org">qgis-developer@lists.osgeo.org</a>> wrote:<br>
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Le 27/03/2023 à 10:06, Alessandro Pasotti via QGIS-Developer a écrit :<br>
> Hi,<br>
><br>
> QGIS is using the GDAL/OGR library to read the shapefiles.<br>
which uses shapelib<br>
><br>
> On Mon, Mar 27, 2023 at 9:51 AM 余 绍健 via QGIS-Developer<br>
> <<a href="mailto:qgis-developer@lists.osgeo.org" target="_blank">qgis-developer@lists.osgeo.org</a>> wrote:<br>
>> Dear All,<br>
>> Sorry to interrupt, I'm newer to QGIS, whe I use QIGS, I find that it is so quick for QGIS to parse shapefile even it is a very big file, I try to decode the file by my own with shapelib library, but the result is disappointed, I try to learn it by myself
with QGIS source code but failed, so anyone can help point the entry of decoding process?<br>
>><br>
>> Thanks.<br>
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