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IDProjectCategoryView StatusDate SubmittedLast Update
0001558graphvizOutput Generationpublic2009-03-10 00:002011-04-28 04:03
ReporterTim Cluff 
Assigned ToArif Bilgin 
PrioritynormalSeverityminorReproducibilityalways
StatusacknowledgedResolutionopen 
PlatformOSWindows OS Version
Summary0001558: dot's output is blank when scaling
Description



dot's output is blank when scaling by .85 or less (e.g. scaling by 0.846714 works fine, scaling 0.856766 gives me a blank image)



I've tried 0000002 with PNG and BMP formats.



<CD>
dot -v
dot - graphviz version 2.22.1 (20090309.2206)
Activated plugin library: gvplugin_pango.dll
Using textlayout: textlayout:cairo
Activated plugin library: gvplugin_dot_layout.dll
Using layout: dot:dot_layout
Activated plugin library: gvplugin_core.dll
Using render: dot:core
Using device: dot:dot:core
The plugin configuration file:
        C:\\Program Files\\Graphviz2.22\\bin\\config6
                was successfully loaded.
    render : cairo dot fig gd gdiplus map ps svg tk vml vrml xdot
    layout : circo dot fdp neato nop nop1 nop2 patchwork twopi
    textlayout : textlayout
    device : bmp canon cmap cmapx cmapx_np dot emf emfplus eps fig gd gd2 gif gv imap imap_np ismap jpe jpeg jpg pdf plain plain-ext p
ng ps ps2 svg svgz tif tiff tk vml vmlz vrml wbmp xdot
    loadimage : (lib) bmp eps gd gd2 gif jpe jpeg jpg png ps svg
</CD>
Additional Information

[arif] This is a pango related problem that we have been aware of for a while.

For a quick solution you can use gd to generate the output

 

dot -Tpng:gd blankOutput.gv -oblank.png

 

P.S:Because of the lack of anti-aliasing ,your output would look little uglier than what you are used to.

[ellson] I'm trying to understand whats going on in your problem 0000002.

I think I understand that you're getting blank output for the command:

   dot -Tpng blankOutput.gv
Is that right?

Could you repeat the command that causes the problem, but add "-v" to that command and save the stderr and the output please? So:

   dot -v -Tpng blankOutput.gv -oblankOutput.png >err

then send me "err" and "blankOutput.png"
TagsNo tags attached.
AUXILLARY-FILES
DATE-FIXED
FIX-COMMENT
FORMER-ID1599
INPUT-FILEhttp://www.graphviz.org/bugs/b1599.gv [^]
OUTPUT-FILE
STATUS-COMMENT*
VERSION     2.22
Attached Files

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- Issue History
Date Modified Username Field Change
2011-04-28 04:03 user1 New Issue
2011-04-28 04:03 user1 Assigned To => Arif Bilgin


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