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IDProjectCategoryView StatusDate SubmittedLast Update
0002201graphvizOutput Generationpublic2012-02-19 21:002012-02-20 08:57
Assigned Toellson 
Platformx86_64OSOS XOS Version10.6.8
Summary0002201: No arrows are drawn in oldarrows.gv example
Descriptionoldarrows.gv used to work, but now none of the arrows draw. The problem is Graphviz, not the graph; the graph hasn't changed.
Steps To Reproducedot -Tpng oldarrows.gv > oldarrows.png
Additional InformationAfter some regression testing, I found that it renders fine in Graphviz 2.24.0 but no longer in 2.26.0.
TagsNo tags attached.
FIX-COMMENTcorrected use of "dir" attribute in oldarrows.gv for current semantics
Attached Filespng file icon oldarrows-2.26.0.png [^] (93,520 bytes) 2012-02-19 21:00

png file icon oldarrows-2.24.0.png [^] (98,182 bytes) 2012-02-19 21:00

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-  Notes
User avatar (0000188)
ellson (administrator)
2012-02-20 08:55

There was a non-backward-compatible change to the semantics of "dir" some time ago, in response to another bug report, such that for an arrowhead to be shown, it must *also* be enabled by the dir attribute.

I've changed oldarrows.gv to drop "dir=none", to use the default "dir=forward" for the head arrows, and to use "dir=back" for the tail arrows.

- Issue History
Date Modified Username Field Change
2012-02-19 21:00 ryandesign New Issue
2012-02-19 21:00 ryandesign File Added: oldarrows-2.26.0.png
2012-02-19 21:00 ryandesign File Added: oldarrows-2.24.0.png
2012-02-20 08:55 ellson Note Added: 0000188
2012-02-20 08:57 ellson FIX-COMMENT => corrected use of "dir" attribute in oldarrows.gv for current semantics
2012-02-20 08:57 ellson Status new => resolved
2012-02-20 08:57 ellson Resolution open => fixed
2012-02-20 08:57 ellson Assigned To => ellson

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