Expand stroke is creating weird paths

[malayali]

Expanding strokes are creating weird paths. Is this a known issue?

test.afdesign

[SPaceBar]

Hi @malayali Thanks for uploading your file. I have been able to reproduce this issue. You seem to have a few additional nodes in these places. You can click on them and delete them. Did you create your curves using a specific brush? I'd like to try a few more shapes. 

[malayali]

22 minutes ago, SPaceBar said:

Did you create your curves using a specific brush? 

Nope, I actually drew that using the Pen Tool.

Quote

You seem to have a few additional nodes in these places. 

I could only find 3 nodes in both strokes. Am I missing something?

[SPaceBar]

Did you use a graphics tablet?

[malayali]

26 minutes ago, SPaceBar said:

Did you use a graphics tablet?

No. I simply used a mouse. I noticed that this occurs mostly when the nodes are close to each other. 

Stroke settings:

[Old Bruce]

On 8/26/2021 at 11:33 AM, malayali said:

Is this a known issue?

Yes when you have tiny items (single digit number of pixels for height and width is extremely tiny, minuscule) it is a known issue.

[SPaceBar]

Thanks for the extra info @malayali As @Old Bruce said, it is a known issue. I am updating the issue report to include your document to give it a bit of a bump.

In the meantime, you'll need to go in a delete the additional nodes. 

[malayali]

21 hours ago, SPaceBar said:

In the meantime, you'll need to go in a delete the additional nodes. 

@SPaceBar I'm not sure which additional nodes you're referring to. Do you mind showing me an example please?

[Alfred]

1 hour ago, malayali said:

I'm not sure which additional nodes you're referring to.

There are multiple coincident nodes distorting the shape:

Deleting the additional nodes will help but the result will still be quite poor. A better method is to enlarge the original stroke by a factor of 10 or 16 (with the ‘Scale with object’ option enabled) so that the ‘Expand Stroke’ procedure has more to work with. After expanding the stroke, shrink it back down to its original size: it still won’t be perfect but it should be close enough for most purposes.

[malayali]

15 minutes ago, Alfred said:

There are multiple coincident nodes distorting the shape:

Deleting the additional nodes will help but the result will still be quite poor. A better method is to enlarge the original stroke by a factor of 10 or 16 (with the ‘Scale with object’ option enabled) so that the ‘Expand Stroke’ procedure has more to work with. After expanding the stroke, shrink it back down to its original size: it still won’t be perfect but it should be close enough for most purposes.

Oh.. oops my bad. I thought @SPaceBarwas referring to deleting additional nodes before expanding the stroke. That got me confused.

Deleting the nodes from each expanded stroke is a hassle of work! Thanks for that tip about Scale with Object, @Alfred. 

[kenfoo]

Is there any progress for this basic functionality?

Right now I'm struggling to get a basic half-circle exported because I cannot properly expand a stroke without it messing up. Even the suggested workaround of deleting nodes doesn't help, because it simply isn't adding the right ones. Likewise, making things larger before expanding doesn't help either, in fact it creates the exact same problematic shape. So I'm basically forced to draw the shape myself. Actually, I'm opening illustrator to make a half circle and then paste it in Affinity Designer. 

In this case, it seems to be a result of the corner tool that I've used to create the shape. I can approximate what I want to achieve by cutting the half-circle out of an ellipse and then expanding that without issue.

 

expand_test.afdesign

[Old Bruce]

18 hours ago, kenfoo said:

In this case, it seems to be a result of the corner tool that I've used to create the shape.

This seems to be because of the Corner Tool here on Mac as well. A bit of testing shows that if I have Square nodes the problem happens but does not occur if I have Round nodes. A simple conversion fixes this.

I guess it is down to there not being any Node Handles on the curve.