Inverse Shapeburst fill of polygons shows vertices and not edges

[qgib]

Author Name: Nicholas Duggan (Nicholas Duggan)
Original Redmine Issue: 12349
Affected QGIS version: 2.8.1
Redmine category:symbology
Assignee: Giovanni Manghi

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Using QGIS 2.8.1 and it would appear that rather than nice smooth shapeburst fills with the inverse shapeburst tool, I am getting "bubbles" of fills.
The "blurs" appear to match certain vertices. I have tried this on 3 different polygon files all with the same effect. It also doesn't matter if the polygons are merged or not.
Attached is a screenshot of the output using a road dataset

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• InverseShapeburstFill.jpeg (Nicholas Duggan)
• Hampshire_Heartbleed.png (Nicholas Duggan)
• Merge.png (Nicholas Duggan)

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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I'm unable to reproduce this. Is this a regression? Please test with 2.6. Also, can you try a different dataset?

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Nyall Dawson wrote:

Also, can you try a different dataset?

or attach here a sample project+data

[qgib]

Author Name: Nicholas Duggan (Nicholas Duggan)

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Hi Nyall/Giovanni
After much crunching, I merged all the polygons and got the desired output. It would appear that either
a) The "Merge polygons" option isn't working for the shapeburst fill or
b) I need to RTFM on correct use of these tools.
Do you have a dropbox or FTP where I can drop these files as they are around 100MB for both zipped shapefiles

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• assigned_to_id was configured as Nyall Dawson
• 8496 was configured as Hampshire_Heartbleed.png

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• Hampshire_Heartbleed.png (Nicholas Duggan)

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Nicholas Duggan wrote:

Hi Nyall/Giovanni
After much crunching, I merged all the polygons and got the desired output. It would appear that either
a) The "Merge polygons" option isn't working for the shapeburst fill or
b) I need to RTFM on correct use of these tools.
Do you have a dropbox or FTP where I can drop these files as they are around 100MB for both zipped shapefiles

try this
https://www.wetransfer.com/

[qgib]

Author Name: Nicholas Duggan (Nicholas Duggan)

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Link to the zipfile is here: http://we.tl/5n2JnE9JyE
There are 2 files, one the merged final roads which work fine and the second is the original "non-merged" road poylgons.

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• assigned_to_id removed Nyall Dawson

[qgib]

Author Name: Giovanni Manghi (@gioman)

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a) The "Merge polygons" option isn't working for the shapeburst fill or

I'm not sure what "merge" option do you refers here.

cheers!

[qgib]

Author Name: Nicholas Duggan (Nicholas Duggan)

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The "merge polygons" in on the style interface (image attached)

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• 8497 was configured as Merge.png

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• Merge.png (Nicholas Duggan)

[qgib]

Author Name: Nicholas Duggan (Nicholas Duggan)

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Doesn't appear to be a problem in 2.8.2 or Master :)

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• assigned_to_id was configured as Giovanni Manghi
• status_id was changed from Feedback to Closed