https://issues.apache.org/ooo/show_bug.cgi?id=123410
Bug ID: 123410
Issue Type: DEFECT
Summary: [SVG] marker rotation wrong on line close line
sequence in d attribute in path element
Product: Draw
Version: 4.1.0-dev
Hardware: All
URL: http://www.w3.org/TR/SVG/painting.html#OrientAttribute
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: open-import
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Depends on: 119118
Created attachment 81692
--> https://issues.apache.org/ooo/attachment.cgi?id=81692&action=edit
Example with close command followed by line command
If there is no moveto but another command immediately after a z command, then
the spec defines a special calculation for the marker rotation:
"When a 'closepath' command is followed by a command other than a 'moveto'
command, then the orientation of the marker corresponding to the 'closepath'
command is calculated assuming that:
the path segment going into the vertex is the path segment corresponding to
the closepath
the path segment coming out of the vertex is the first path segment of the
subsequent subpath."
The current implementation of get_markerRotation cannot handle this, because it
only knows the polygon, to which the vertex belongs, but not the next polygon.
Because of the still missing fix for bug 119118, testing is yet not possible.
You will see a completely wrong rendering. The attachment contains the
svg.graphic and a picture how it is rendered in IE 10, and a document with both
linked.
Armin, I have put you in CC, because this cannot be fixed by simple changes
inside a method, but a design change might be needed. Is the information,
whether a subpath was started with a moveto command still available in method
SvgStyleAttributes::add_markers?
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