Closed
Bug 459945
Opened 16 years ago
Closed 15 years ago
Issues with inner border-radius computation for outer rings on grooved borders
Categories
(Core :: Layout: Block and Inline, defect)
Core
Layout: Block and Inline
Tracking
()
RESOLVED
INVALID
People
(Reporter: cmtalbert, Unassigned)
References
(Blocks 1 open bug)
Details
Attachments
(4 files)
This is a follow-on bug for the issue discovered in bug 458131, comment 6. Here is the relevant discussion from that comment: > * border-intersection-double.html -- should the double lines of a border always > be parallel? Here, you can see that in the bottom right corner, the lines move > toward each other. These borders do not change thickness, so I think this is > also a bug. Zach, what do you think? Staring at that and border-intersection-groove makes me think the problem is we're not doing a proper inner radius computation for the outer ring(s). It's more obvious in -groove because there's only two rings to look at; the curvature of the middle boundary should not be exactly the same as the curvature of the outer boundary. It's not possible to make the lines all be perfectly parallel here, I think, but doing that ought to make it look better anyway. I'll attach the groove testcase that we were discussing.
Updated•16 years ago
|
Blocks: border-radius
Comment 1•16 years ago
|
||
Comment 2•16 years ago
|
||
I finally got back around to investigating this in more detail, and it looks like either there's no bug or the bug is in the spec. This and the HTML file I just attached render eye-identical (possibly not reftest-identical) in current trunk, which means we *are* shrinking the intermediate ellipse semi-axes as the spec says, but you can still see the visual glitch that Clint pointed out - in both files. (It's most obvious on the inner stripe, which looks kinked.) What I now think is, to get visually smooth inner stripes, we have to either allow the inner curves to extend past the corner rectangle to some extent, or *not* reduce the inner curve semi-axes as much as the border thickness would suggest, or both. Neither of these things is specified and frankly I don't know what the right behavior would be.
Comment 3•15 years ago
|
||
This is the reftest analyzer output for the HTML vs SVG reference. Although visually identical, reftest claims that the curves are not equal.
Comment 4•15 years ago
|
||
I'm going to close this as INVALID. I audited the code and confirmed that the inner stripe radii are being calculated as specified.
Status: NEW → RESOLVED
Closed: 15 years ago
Resolution: --- → INVALID
You need to log in
before you can comment on or make changes to this bug.
Description
•