floating artifact

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DadintheK
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Joined: Sat Nov 12, 2011 10:41 am

floating artifact

Postby DadintheK » Sat Nov 12, 2011 10:53 am

Hi, relative newbie with Inkscape. Working with text, envelope deformation to create arched logo, and a triangular shape has just appeared, attached to the top of one of the letters. It doesn't change with zoom in or out, doesn't select or erase. It can be hidden by an opaque square. It occasionally floats to a different spot / multiplies when attempting to select with cursor square, and even disappear. But, it reappears when I try to export bitmap.

I'm hoping to avoid redoing the entire project. Any ideas or experience? I have to print on a black background or I'd just use a white 'patch' to cover it. Thanks!

PatJr
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Joined: Fri Jul 29, 2011 5:35 am

Re: floating artifact

Postby PatJr » Sun Nov 13, 2011 2:33 am

yikes! dunno

maybe you could stick the little devil in a clipped path?

maybe posting up a screen shot or same file would help find a solution

Pat Jr.

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brynn
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Re: floating artifact

Postby brynn » Sun Nov 13, 2011 5:58 am

Welcome to InkscapeForum!

Yeah, I have no idea what might be happening by your description. Could you post a quick illustration or screenshot of the problem?

That said, I've noticed some weird stuff with Env. Deform. (weird to me, but expected behavior). If you move any of the deform paths too far, the warping of the text can appear strange, and I can imagine how it's possible part of a letter has been sort of twisted around. Have a look at all 4 deform paths, because you might be able to tweak one of them to correct it. (I call them "deform paths" but I see in Inkscape they're called "bend paths".)

But if you can't solve it that way, please show us the proverbial "thousand words" (i.e. a picture).

DadintheK
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Joined: Sat Nov 12, 2011 10:41 am

Re: floating artifact

Postby DadintheK » Sun Nov 13, 2011 9:09 am

Thanks for your replies - I'm having trouble getting the screen shot pasted in here....clearly not sure what I'm doing. Could you tell me what to do, by the numbers? (red cheeks).

At any rate, I've noticed that if I scroll the window up past the image, the artifact moves, appears over other letters, etc., so that suggests it may not be a particular deform path.

DadintheK
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Joined: Sat Nov 12, 2011 10:41 am

Re: floating artifact

Postby DadintheK » Sun Nov 13, 2011 9:46 am

ARTIFACT VTWO.png
ARTIFACT VTWO.png (149.71 KiB) Viewed 2470 times
ARTIFACT.png
ARTIFACT.png (150.2 KiB) Viewed 2470 times


Here are two versions. As noted, the artifacts appear, move and disappear when scrolling the image, but can't be "selected", and aren't included in any selection. Thanks

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brynn
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Re: floating artifact

Postby brynn » Sun Nov 13, 2011 5:02 pm

Yes, you're right, it's not related to the deform paths.
It looks like you might have used a filter -- the raised looking areas at the top of each letter? I don't know if this problem is related to the filter display quality or not. But you could try this, at least. Go to Inkscape Preferences > Filters, and whatever the display settings are (probably Average), move them up a notch. Don't worry, you won't notice any performance issues with this image (as implied in Inks Prefs). (larger images maybe, but not this one)

If that doesn't solve the problem, then it might be the same bug I ran into the other day. I'll be back and post a link to it.

Edit
Ok, whoever told me it was a bug, told me that it's been fixed in the development version and didn't give a link to the technical info. But I'm not really very confident it's related to what I experienced (viewtopic.php?f=5&t=10583). If changing the filter display quality doesn't fix it, then otherwise it does seem like a bug to me. I feel like I should know about it, but just can't put my finger on where I've seen it. If it's a bug, then hopefully ~suv will comment :D

~suv
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Re: floating artifact

Postby ~suv » Sun Nov 13, 2011 10:19 pm

The screenshots don't really help figuring out what is going on - could you please attach the SVG file(s)?

(Very likely this is a similar bug in the old renderer when handling large stroked paths (possibly fixed in the new renderer, but I can't tell/confirm based on the screenshots, sorry)).

DadintheK wrote:I'm hoping to avoid redoing the entire project. Any ideas or experience? (…)
Does the error persist in exported bitmaps (try varying the dpi slightly if so), or when viewing the SVG file in other SVG viewers (e.g. Firefox or Chrome)? I.e. how much does Inkscape's internal renderer glitch affect your usage of the final drawing?

PatJr
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Joined: Fri Jul 29, 2011 5:35 am

Re: floating artifact

Postby PatJr » Mon Nov 14, 2011 12:59 am

yea, post up a sample svg file if possible please

Pat Jr.

DadintheK
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Joined: Sat Nov 12, 2011 10:41 am

Re: floating artifact

Postby DadintheK » Mon Nov 14, 2011 3:50 am

Thanks all, really appreciate the help. svg file is attached.
Attachments
DADELICIOUS.svg
(156.33 KiB) Downloaded 178 times

DadintheK
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Joined: Sat Nov 12, 2011 10:41 am

Re: floating artifact

Postby DadintheK » Mon Nov 14, 2011 3:58 am

~suv wrote:Does the error persist in exported bitmaps


Yes, the spike above the "A" does export in bitmap, so it doesn't appear to be a browser issue.

If there's no other obvious solution, is it possible my Inkscape program file is corrupted? I haven't had any problems before now.

~suv
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Re: floating artifact

Postby ~suv » Mon Nov 14, 2011 4:22 am

The spike is the miter of the sharp corner at the top of the inner hole of the wide stroke applied to the bottom-most 'A' (you have increased the miter limit from default 4.0 to 18.0, and use a relative wide stroke). If you reduce the miter limit, the 'artifact' disappears.


Note: not causing the issue, but for all 'A' you have applied the envelope deformation LPE twice - on purpose?

DadintheK
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Joined: Sat Nov 12, 2011 10:41 am

Re: floating artifact

Postby DadintheK » Mon Nov 14, 2011 5:06 am

Brilliant! Miter limit fixed all. Very much appreciated. :D

Duplicate LPE was unintentional - had a hard time trying to achieve the effect.


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