322976 - Won't render a single-point path as a dot

Status: RESOLVED WORKSFORME

(Core :: SVG, defect)

Description

[Mikhail Zabaluev]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.8) Gecko/20051231 Firefox/1.5
Build Identifier: 

The SVG 1.1 specification says (http://www.w3.org/TR/SVG11/painting.html#StrokeProperties):

"A subpath consisting of a single moveto  is not stroked. A subpath consisting of a moveto and lineto to the same exact location or a subpath consisting of a moveto and a closepath will be stroked only if the 'stroke-linecap' property is set to "round", producing a circle centered at the given point."

This is not what the GDI+ backend renders given such a path, which is nothing, no matter what the 'stroke-linecap' property is set to. I also observe this bug with a Linux build.

Reproducible: Always

Steps to Reproduce:

Comment 1

[Mikhail Zabaluev]

Attachment: Test SVG file

Comment 2

[Mikhail Zabaluev]

Sorry. To be honest, I observed this first on Windows 2000, and now on Linux.

Comment 3

[Marco Perez [:mpk]]

Confirming for current trunk build (cairo) on FreeBSD 6.0. 

Comment 4

[Keith]

After looking at this for awhile, it appears that this behavior would be best added to the cairo codebase in cairo-path-stroke.c.  Please see the cairo mailing list [e-mail]. A diff file containing changes that could be made to cairo-path-stroke.c was included as an attachment along with a query for adding this behavior to cairo to this mailing list. 

Comment 5

[Marco Perez [:mpk]]

I don't know exactly when this got fixed, but the testcase
displays okay on recent trunk builds. --> marking as fixed

Comment 6

[Jason Bassford]

If the fix is unknown:

-> WORKSFORME