Function is_closed() is not working

[qgib]

Author Name: Zoran Petrovic (Zoran Petrovic)
Original Redmine Issue: 19704
Affected QGIS version: 3.2.2
Redmine category:geometry

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When using Select by expression or Field calculator, function is_closed is not working.
For example:

this works:

CASE WHEN
x(start_point($geometry)) = x(end_point($geometry))
AND
y(start_point($geometry)) = y(end_point($geometry))
THEN 'closed' END

but this doesn't:

CASE WHEN
is_closed($geometry)
THEN 'closed' END

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Can you share the wkt for some geometries this fails for?

[qgib]

Author Name: Zoran Petrovic (Zoran Petrovic)

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Nyall Dawson wrote:

Can you share the wkt for some geometries this fails for?

Here is the sample (EPSG 3908):

MultiLineString ((6501338.13976828 4850981.51459331, 6501343.09036573 4850984.01453377, 6501338.13976828 4850988.96491092, 6501335.63971657 4850984.01453377, 6501338.13976828 4850981.51459331))

MultiLineString ((6501793.14917959 4851116.51137828, 6501798.09977704 4851119.01131875, 6501793.14917959 4851120.67794572, 6501791.48247845 4851119.01131875, 6501793.14917959 4851116.51137828))

MultiLineString ((6502558.16500301 4851122.3445727, 6502563.11560045 4851124.01119967, 6502558.16500301 4851128.96157683, 6502553.21440556 4851124.01119967, 6502558.16500301 4851122.3445727))

Is_closed is probably having issues with the MultiLineString type.

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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#7728

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• status_id was changed from Open to In Progress

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Applied in changeset e5e14dd.

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• done_ratio was changed from 0 to 100
• status_id was changed from In Progress to Closed

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• resolution was changed from to fixed/implemented