Re: [QGIS-Developer] Calculate area/perimtere/length of polygon/line while editing

[Sylvain Théry via QGIS-Developer]

Hello,

It seems there is a fix here : https://github.com/agiudiceandrea/calcarea2/blob/a6a3d7c5a98e64573731cd6a005da4e2d9836fdd/calcareaevent.py

All the best,
S.

Le 11/03/2025 à 16:14, Catania, Luke A ERDC-RDE-GRL-VA CIV via QGIS-Developer a écrit :

*TypeError: QgisInterface missing 'mActionDigitizeWithCurve' action *

Traceback (most recent call last):

    plugins[packageName] = package.classFactory(iface)

    return CalcAreaPlugin( iface )

    self.toolEvent = CalcAreaEvent( self.iface )

    self.addFeatureEvent = AddFeatureEvent( iface )

    self.geomPolygon = self.GeomPolygon( iface )

    self.actionDigitizeWithCurve = getActionDigitizeWithCurve( iface )

    raise TypeError(f"QgisInterface missing '{name}' action")
TypeError: QgisInterface missing 'mActionDigitizeWithCurve' action

*From:*DelazJ <del...@gmail.com>
*Sent:* Tuesday, March 11, 2025 11:08 AM
*To:* Catania, Luke A ERDC-RDE-GRL-VA CIV <luke.a.cata...@erdc.dren.mil>
*Cc:* qgis-developer@lists.osgeo.org


Hi,



Regards,

Harrissou



    I need to calculate these values on the fly while I am in an edit
    session resizing a polygon or a line.  I need the user to see this
    calculation while they are editing not after the edits are
    committed. I already have the UI set up to capture after commit,
    but I need to capture while they are moving vertices and update
    the values in the UI, so they don’t keep editing and then
    committing just to see if they are close.  I want them to know
    before they commit.

    Any idea how to achieve this?

    Luke Catania

    US Army ERDC-GRL

    JCMS Site Planning Developer

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Thanks. Plugin installed but will not run.  I get the error below. I have QGIS 3.34.4.   File "C:\PROGRA~1/QGIS33~1.4/apps/qgis-ltr/./python\qgis\utils.py", line 423, in _startPlugin   File "C:\Users/RDTECLAC/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\calcarea2\__init__.py", line 29, in classFactory   File "C:\Users/RDTECLAC/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\calcarea2\plugin.py", line 66, in __init__   File "C:\Users/RDTECLAC/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\calcarea2\calcareaevent.py", line 478, in __init__   File "C:\Users/RDTECLAC/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\calcarea2\calcareaevent.py", line 213, in __init__   File "C:\Users/RDTECLAC/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\calcarea2\calcareaevent.py", line 316, in __init__   File "C:\Users/RDTECLAC/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\calcarea2\calcareaevent.py", line 308, in getActionDigitizeWithCurve *Subject:* Re: [QGIS-Developer] Calculate area/perimtere/length of polygon/line while editing There is a CalcArea2 plugin whose description mentions it should be doing that for polygons. You might want to take ispiration from their code. Le mar. 11 mars 2025 à 15:55, Catania, Luke A ERDC-RDE-GRL-VA CIV via QGIS-Developer <qgis-developer@lists.osgeo.org> a écrit :

--
Sylvain THÉRY - Ingénieur d'études CNRS en géomatique
UMR 5281 ART-Dev - Acteurs, Ressources et Territoires dans le 
Développementhttps://art-dev.cnrs.fr/
sylvain.th...@cnrs.fr  - +33.4.11.75.70.98
Université Paul-Valéry Montpellier 3 - Site St Charles - Bureau 239
@ postale : ART-Dev - St Charles - Route de Mende - 34 199 Montpellier Cedex 5
https://www.researchgate.net/profile/Sylvain-Thery

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