Embedding auto-generated UML diagrams to LaTeX output

Question

Is it possible to embed the UML diagrams generated with UML_LOOK = YES in the LaTeX output?

Edit:

I am using Doxygen 1.9.1. The output of doxygen -x Doxyfile looks like this:

# Difference with default Doxyfile 1.9.1
PROJECT_NAME           = ...
JAVADOC_AUTOBRIEF      = YES
TOC_INCLUDE_HEADINGS   = 0
EXTRACT_ALL            = YES
EXTRACT_PRIVATE        = YES
INPUT                  = ...
FILE_PATTERNS          = *.cpp \
                         *.h
RECURSIVE              = YES
EXAMPLE_PATH           = .../examples
USE_MDFILE_AS_MAINPAGE = README.md
HTML_FORMULA_FORMAT    = svg
MATHJAX_RELPATH        = https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.2/
LATEX_CMD_NAME         = pdflatex
HAVE_DOT               = YES
COLLABORATION_GRAPH    = NO
UML_LOOK               = YES
TEMPLATE_RELATIONS     = YES
DOT_IMAGE_FORMAT       = svg
INTERACTIVE_SVG        = YES
DOT_TRANSPARENT        = YES

For a minimal source file like

class Lol {
    void foo(){}
};

class Bar : public Lol {
};

int main(int argc, char *argv[])
{
    
    return 0;
}

The HTML output contains this kind of diagram:

but the LaTeX PDF contains no graphs.

Edit 2

There seems to be a problem with dot ?

Executing external command `dot ".../html/classBar__inherit__graph.dot" -Tsvg -o ".../html/classBar__inherit__graph.svg"`
Executing external command `dot ".../latex/classLol__inherit__graph.dot" -Tpdf -o ".../latex/classLol__inherit__graph.pdf"`
Executing external command `dot ".../html/classLol__inherit__graph.dot" -Tsvg -o ".../html/classLol__inherit__graph.svg"`
Executing external command `dot ".../html/graph_legend.dot" -Tsvg -o ".../html/graph_legend.svg"`
Executing external commanerror: Failed to extract bounding box from generated diagram file .../latex/classLol__inherit__graph.pdf
error: Problems running dot: exit code=0, command='dot', arguments='".../latex/classLol__inherit__graph.dot" -Tpdf -o ".../latex/classLol__inherit__graph.pdf"'
error: Failed to extract bounding box from generated diagram file .../latex/classBar__inherit__graph.pdf
error: Problems running dot: exit code=0, command='dot', arguments='".../latex/classBar__inherit__graph.dot" -Tpdf -o ".../latex/classBar__inherit__graph.pdf"'
error: Failed to extract bounding box from generated diagram file .../latex/classBar__inherit__graph.pdf
error: problem writing FIG 0 figure!

Answer 1

A comment does not accept images, but when I run your example with doxygen 1.9.1 I do see the UML diagram in the LaTeX output:

and

I ran the given example with the extra option -d extcmd (so doxygen -d extmd ) which also showed me that the uml diagram was created.

Executing external command `dot ".../html/graph_legend.dot" -Tsvg -o ".../html/graph_legend.svg"`
Executing external command `dot ".../html/class_bar__inherit__graph.dot" -Tsvg -o ".../html/class_bar__inherit__graph.svg"`
Executing external command `dot ".../html/class_lol__inherit__graph.dot" -Tsvg -o ".../html/class_lol__inherit__graph.svg"`
Executing external command `dot ".../latex/class_bar__inherit__graph.dot" -Tpdf -o ".../latex/class_bar__inherit__graph.pdf"`
Executing external command `dot ".../html/inherit_graph_0.dot" -Tsvg -o ".../html/inherit_graph_0.svg"`
Executing external command `dot ".../latex/class_lol__inherit__graph.dot" -Tpdf -o ".../latex/class_lol__inherit__graph.pdf"`
Executing external command `dot ".../html/class_lol__inherit__graph.dot" -Tcmapx -o ".../html/class_lol__inherit__graph.map"`
Executing external command `dot ".../html/class_bar__inherit__graph.dot" -Tcmapx -o ".../html/class_bar__inherit__graph.map"`
Executing external command `dot ".../html/inherit_graph_0.dot" -Tcmapx -o ".../html/inherit_graph_0.map"`

So as far as I can see the UML diagrams are created.

Note: the current doxygen version is 1.9.5

Answer 2

Yes, it is possible, but Cairo 1.17.6 changes the way that the PDFs are encoded, and doxygen fails to process the PDFs generated by dot .

See https://github.com/doxygen/doxygen/issues/9319 , and albert's comment below (who figured this out, I am just summarizing the answer).