Wide curved SVG paths with high curvature have rendering artifacts
Reported by
drarm...@gmail.com,
Nov 8 2016
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Issue descriptionUserAgent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36 Steps to reproduce the problem: https://jsfiddle.net/7k3ck9ck/1/ What is the expected behavior? Both SVG path curves should have a vertical left and right side with a curve path connecting them. What went wrong? The green path renders correctly. But, if the path has a wide enough stroke-width and is narrow enough, like the red path, then extra rendering artifacts will be drawn beyond the minimum x and maximum x values of the path. Did this work before? N/A Does this work in other browsers? No Chrome version: 54.0.2840.71 Channel: stable OS Version: OS X 10.11.6 Flash Version: Shockwave Flash 23.0 r0
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Nov 8 2016
I tested this is Edge, and it renders it differently (both the green and the red.) This looks very much like artifacts from how stroking is implemented. In this case (i.e a stroke wider than the curvature or how you'd describe it) the stroke path ends up folding onto itself, "canceling" itself out. At least that's my take on it. I'd be interested to see rendering from an old Cairo-based Gecko.
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Nov 9 2016
Able to reproduce this issue on windows 10,Ubuntu 14.04 and Mac 10.11.6 using chrome stable M54-54.0.2840.71 and earlier version of chrome M30-30.0.1549.0. This is a non-regression issue and marking it as untriaged. Please look into the attached screencast and screenshot. Thank You...
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Nov 9 2016
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Nov 9 2016
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Nov 18 2016
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Nov 18 2016
Unmarking myself as owner; I do not anticipate finding a solution for this soon. If I ever find a solution for its spiritual sibling crbug.com/589769, I will be happy to see if that has applicability here.
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Nov 20 2017
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue. Sorry for the inconvenience if the bug really should have been left as Available. If you change it back, also remove the "Hotlist-Recharge-Cold" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Nov 20 2017
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Nov 20
This issue has been Available for over a year. If it's no longer important or seems unlikely to be fixed, please consider closing it out. If it is important, please re-triage the issue. Sorry for the inconvenience if the bug really should have been left as Available. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Nov 20
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Comment 1 by pdr@chromium.org
, Nov 8 2016