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<blockquote type="cite"><b style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; letter-spacing: normal; orphans: 2; text-align: start;
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widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
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initial; text-decoration-color: initial;">Andrea Giudiceandrea</b><br
style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
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font-weight: 400; letter-spacing: normal; orphans: 2;
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white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration-thickness:
initial; text-decoration-style: initial; text-decoration-color:
initial;">
<i style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Mon Jan 30 10:02:47
PST 2023</i>
<hr style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
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<pre style="white-space: pre-wrap; color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">it seems to me there is no issue using the Field Calculator algorithm in
the Model designer to calculate the area of polygon geometries, at least
using the latest QGIS 3.28 and 3.22 versions.
</pre>
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<blockquote type="cite"><b style="color: rgb(0, 0, 0); font-family:
"Times New Roman"; font-size: medium; font-style:
normal; font-variant-ligatures: normal; font-variant-caps:
normal; letter-spacing: normal; orphans: 2; text-align: start;
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widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Alexandre Neto</b><br
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Roman"; font-size: medium; font-style: normal;
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<i style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-variant-ligatures: normal;
font-variant-caps: normal; font-weight: 400; letter-spacing:
normal; orphans: 2; text-align: start; text-indent: 0px;
text-transform: none; white-space: normal; widows: 2;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration-thickness: initial; text-decoration-style:
initial; text-decoration-color: initial;">Mon Jan 30 13:55:11
PST 2023</i>
<hr style="color: rgb(0, 0, 0); font-family: "Times New
Roman"; font-size: medium; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: 400; letter-spacing: normal; orphans: 2;
text-align: start; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration-thickness:
initial; text-decoration-style: initial; text-decoration-color:
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<pre style="white-space: pre-wrap; color: rgb(0, 0, 0); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;">If I remember well, you need to change the parameter type from value to
precalculated value. If not, try adding single quotes around the expression.
</pre>
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<br>
I've also used the Field Calculator algorithm in the Model designer
to calculate the area of polygon geometries with QGIS 3.10 without
any issue and without the need to change the parameter type to
"precalculated value" nor to add single quotes around the
expression.<br>
<br>
Best regards.<br>
<br>
Andrea Giudiceandrea<br>
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