<div dir="ltr">Hi Andrea, <div>thanks for your quick response!</div><div><br></div><div><br><div><br></div><div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, 27 Jan 2025 at 11:11, Andrea Giudiceandrea via QGIS-User <<a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">> Gabor Szakacs gabor.szakacs at <a href="http://agreena.com" rel="noreferrer" target="_blank">agreena.com</a><br>
> Mon Jan 27 05:35:29 PST 2025<br>
<br>
> To speed up area calculation, I would like to know the code snippet that<br>
> QGIS is using to calculate $area.<br>
<br>
Hi Gabor,<br>
I think you will find useful in the PyQGIS developer cookbook at <br>
<a href="https://docs.qgis.org/3.40/en/docs/pyqgis_developer_cookbook/geometry.html#geometry-predicates-and-operations" rel="noreferrer" target="_blank">https://docs.qgis.org/3.40/en/docs/pyqgis_developer_cookbook/geometry.html#geometry-predicates-and-operations</a><br>
<br>
Best regards.<br>
<br>
Andrea Giudiceandrea<br>
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</blockquote></div><div><br clear="all"></div><div><br></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><span></span><span></span><table cellpadding="0" cellspacing="0" border="0" style="color:rgb(0,0,0);font-family:"Google Sans",Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:medium;background:none;border:0px;margin:0px;padding:0px"><tbody><tr><td style="font-family:Helvetica,Arial,sans-serif;color:rgb(61,67,68);font-size:12px"><b><br><br></b></td></tr></tbody></table><span><p dir="ltr" style="line-height:1.56;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(34,34,34);background-color:transparent;font-weight:700;vertical-align:baseline">Dr. Gabor Szakacs</span><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(34,34,34);background-color:transparent;font-weight:700;vertical-align:baseline"><br></span><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(19,79,92);background-color:transparent;vertical-align:baseline">Geospatial Analyst in Regenerative Agriculture</span></p><p dir="ltr" style="line-height:1.56;margin-top:0pt;margin-bottom:0pt"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(34,34,34);background-color:transparent;vertical-align:baseline">+55 11 989319305</span></p><p dir="ltr" style="line-height:1.56;margin-top:0pt;margin-bottom:0pt"><span style="font-size:8pt;font-family:Arial,sans-serif;color:rgb(19,79,92);background-color:transparent;vertical-align:baseline"><a href="mailto:gabor.szakacs@agreena.com" target="_blank">gabor.szakacs@agreena.com</a></span></p><br><p dir="ltr" style="line-height:1.56;margin-top:0pt;margin-bottom:0pt"><a href="https://agreena.com/" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline"><span style="border:none;display:inline-block;overflow:hidden;width:131px;height:35px"><img src="https://lh3.googleusercontent.com/HAYhoxGSnZE-f86DrpwIRP9ZpFrgoV7bKPgx-VPQK6bhSmFn-Y4qBFbIlawLDySqrV6naScXxfq83VxZzOcNjqHfxvc3mU6_-aN6LF-5obWS7P7zWBSaCHZZnhXeq8f4MP6DDHvlItY-c0HZo45EBEk" width="131" height="35" style="margin-left: 0px; margin-top: 0px;"></span></span></a></p><p dir="ltr" style="line-height:1.56;margin-top:0pt;margin-bottom:0pt"><a href="https://agreena.com/" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline"><span style="border:none;display:inline-block;overflow:hidden;width:31px;height:31px"><img src="https://lh6.googleusercontent.com/y3oY91zBUXpuadUzy_oJT9pgPRU-dS6mFo9dL7kx55esAHz6KYBBRCT8d63snGVsogW9_yvcGj1sYs4bFpQnqKnZzGjtEaZCUgddsE_qfxIoLcRWLZeWBG8aukK3_k8QmTffy1QkXtmfCTnE4Ucqf4c" width="31" height="31" style="margin-left: 0px; margin-top: 0px;"></span></span></a><a href="https://www.linkedin.com/company/agreena" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline"><span style="border:none;display:inline-block;overflow:hidden;width:31px;height:31px"><img src="https://lh5.googleusercontent.com/2yrRFXGNRb-iKeFOBfz-LyhTM_ZmaoFAQQ6hyJtsiAXFDpYMP0P1UIPNpQCkb68pHmEIirlVZo1XQ76RIeHQZtxCw1FxtIgeLEkDtr9BRa3KyPBQ0jq99cI1o7CtmrUB7F3P9lKZauElbnsBP5wGOhY" width="31" height="31" style="margin-left: 0px; margin-top: 0px;"></span></span></a><a href="https://twitter.com/AgreenaApp" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline"><span style="border:none;display:inline-block;overflow:hidden;width:31px;height:31px"><img src="https://lh5.googleusercontent.com/EobDIZhX8ILtElOTXzzOV1TFYdEocybzLwSwcani9kH-xn4P4Bpy4hOG9b2tfd9nToB3rC9ypX7YLf_sB-CMaGIEESjZYyJcWFXHUuGtGbUxqWuEtWM9f2T9E4xMBRi3rtlfOGDHAD_IIbwYk9GUNlI" width="31" height="31" style="margin-left: 0px; margin-top: 0px;"></span></span></a><a href="https://www.instagram.com/agreenaapp/" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline"><span style="border:none;display:inline-block;overflow:hidden;width:29px;height:29px"><img src="https://lh6.googleusercontent.com/qa_XifIl37qXLQ5-l0exPK3jJib_XY-Yopry27eUhoeZcSIqhvKOxOhTvuyMnSoZG2l8jiLpJiB63sgQT8HgaKzAnTjKzYRe-b404KGCUKIggrNfOiEJx63U2miNSxQ5qrRGdPMuL4EVvOp4jGAUKK0" width="29" height="29" style="margin-left: 0px; margin-top: 0px;"></span></span></a><a href="https://www.facebook.com/AgreenaApp/" target="_blank"><span style="font-size:11pt;font-family:Arial,sans-serif;color:rgb(17,85,204);background-color:transparent;vertical-align:baseline"><span style="border:none;display:inline-block;overflow:hidden;width:29px;height:29px"><img src="https://lh4.googleusercontent.com/_fw6mXB5hfJBOeSlwxSRyls-cVS2Rzu2S4NweO7S17oisSCOXpfaWf1n53IwvMTwekJfGn5uA_1uiiu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