Vertex markers not displayed properly for MultiPolygon features

[qgib]

Author Name: Andreas Wicht (@andywicht)
Original Redmine Issue: 19909
Affected QGIS version: 3.4.1
Redmine category:map_canvas
Assignee: Hugo Mercier

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When editing a MultiPolygon Layer the vertex markers are not displayed correctly. I suspect this behavior gets more frequent, the larger the number of vertices in a feature is.
When zooming to the part where no vertex markers are displayed, they will appear when zooming close enough.

• Changing "Show markers only for selected features" does not affect the behavior.
• the polygon is valid
• it does not matter if the polygon is selected or not

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• vertex_markers.png (Andreas Wicht)
• vertex_markers.gpkg (Andreas Wicht)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Does it works as expected on 2.18?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Andreas Wicht (@andywicht)

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Yes. Sorry, forgot to add that.

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• status_id was changed from Feedback to Open

[qgib]

Author Name: Bernhard Ströbl (Bernhard Ströbl)

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Hi Andi, this is when selecting the feature with the select tool, not with highlighting with the node tool, correct?

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Andreas Wicht (@andywicht)

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Hi Bernhard, yes I was talking about the selected (select tool) not highlighted representation of a multipolygon (see attached example polygon).
The problem persists in 3.4.1

[qgib]

Author Name: Andreas Wicht (@andywicht)

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• status_id was changed from Feedback to Open

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• priority_id was changed from Normal to High
• regression was changed from 0 to 1
• version was changed from 3.2.3 to 3.4.1

[qgib]

Author Name: Andreas Wicht (@andywicht)

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Problem also persists in 3.4.2

[qgib]

Author Name: Hugo Mercier (@mhugo)

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Reproduced

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• assigned_to_id was configured as Hugo Mercier

[qgib]

Author Name: Hugo Mercier (@mhugo)

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PR #9036

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• pull_request_patch_supplied was changed from 0 to 1

[qgib]

Author Name: Hugo Mercier (@mhugo)

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Applied in changeset 389149c.

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• done_ratio was changed from 0 to 100
• status_id was changed from Open to Closed