Doxygen has a really neat feature whereby it will generate inheritance graphs from code. However, when using multiple inheritance from classes with a common base, the plot shows two separate base classes (even though I'm using virtual inheritance as signified by the dashed lines around the base class)
How can I make Doxygen plot something more like the following . . .
D
/ \
B C
\ /
A
And not: (as happens without virtual inheritance)
D
/ \
B C
| |
A A
If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is available from the path. This tool is part of Graphviz (see: http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent Bell Labs. The other options in this section have no effect if this option is set to NO The default value is: NO.
Set to
HAVE_DOT = YES