<div dir="ltr"><div class="gmail_default" style="font-family:tahoma,sans-serif">Hi to all,</div><div class="gmail_default" style="font-family:tahoma,sans-serif">I calculated the area of a shape file polygon with 2 different tools:</div><div class="gmail_default" style="font-family:tahoma,sans-serif">the standard one from field calculator and the other method using a plugin "geometry calculator".</div><div class="gmail_default" style="font-family:tahoma,sans-serif"> Do you know why I obtained 2 different results?<br></div><div><div class="gmail_default" style="font-family:tahoma,sans-serif">10144312,54 square meter</div><div class="gmail_default" style="font-family:tahoma,sans-serif">10148071,71
square meter
<br></div><br></div><div><div class="gmail_default" style="font-family:tahoma,sans-serif">I am using Qgis 3.10 with grass and in the plugin I set up to use CRS of the project. </div><div class="gmail_default" style="font-family:tahoma,sans-serif"><br></div><div class="gmail_default" style="font-family:tahoma,sans-serif">Thanks, Azzurra</div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Lecturer GIS University "Roma Tre"<br></div><div dir="ltr">Consultant Environmental Risk Prevention and Hydrogeology<br>AZZURRA LENTINI </div><div dir="ltr">++++++++++++++++++++++++++<br>Italy Mobile Tel.: **(39) 338 24 40 676<br>++++++++++++++++++++++++++<br>SKYPE azzurrahydro<br>++++++++++++++++++++++++++</div><div><p class="MsoNormal" style="margin-bottom:0.0001pt;background-image:initial;background-position:initial;background-repeat:initial;line-height:normal"><b><u><span style="font-size:12pt;font-family:Arial,sans-serif;color:blue"><a href="mailto:azzurralentini@gmail.com" style="color:rgb(17,85,204)" target="_blank">azzurralentini@gmail.com</a></span></u></b></p><p class="MsoNormal" style="margin-bottom:0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-repeat:initial"><b><u><span style="font-size:12pt;font-family:Arial,sans-serif;color:blue"><a href="mailto:azzurra.lentini@uniroma3.it" style="color:rgb(17,85,204)" target="_blank">azzurra.lentini@uniroma3.it</a> </span></u></b><b><u><span style="font-size:12pt;font-family:Arial,sans-serif;color:blue"> </span></u></b><br></p></div><div dir="ltr">++++++++++++++++++++++++++<br>*Par respect pour l'environnement,*<br><br>*n'imprimez ce mail qu'en cas d'absolue nécessité*</div></div><div dir="ltr"> <br><br><br><br><br></div></div></div></div></div></div></div></div>