Add graphviz dot charts to doxygen

.github/workflows/doxy.yml

@@ -19,6 +19,10 @@ jobs:
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
     - uses: actions/checkout@v2
+
+    # Installs graphviz for DOT graphs
+    - name: Install graphviz
+      run: sudo apt-get install graphviz
         
     - name: Doxygen Action
       uses: mattnotmitt/doxygen-action@v1.1.0

Doxyfile

@@ -530,7 +530,7 @@ EXTRACT_ALL            = NO
 # be included in the documentation.
 # The default value is: NO.
 
-EXTRACT_PRIVATE        = NO
+EXTRACT_PRIVATE        = YES
 
 # If the EXTRACT_PRIV_VIRTUAL tag is set to YES, documented private virtual
 # methods of a class will be included in the documentation.
@@ -573,7 +573,7 @@ EXTRACT_LOCAL_METHODS  = NO
 # are hidden.
 # The default value is: NO.
 
-EXTRACT_ANON_NSPACES   = NO
+EXTRACT_ANON_NSPACES   = YES
 
 # If this flag is set to YES, the name of an unnamed parameter in a declaration
 # will be determined by the corresponding definition. By default unnamed
@@ -1210,13 +1210,13 @@ STRIP_CODE_COMMENTS    = YES
 # entity all documented functions referencing it will be listed.
 # The default value is: NO.
 
-REFERENCED_BY_RELATION = NO
+REFERENCED_BY_RELATION = YES
 
 # If the REFERENCES_RELATION tag is set to YES then for each documented function
 # all documented entities called/used by that function will be listed.
 # The default value is: NO.
 
-REFERENCES_RELATION    = NO
+REFERENCES_RELATION    = YES
 
 # If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
 # to YES then the hyperlinks from functions in REFERENCES_RELATION and
@@ -2505,7 +2505,7 @@ HIDE_UNDOC_RELATIONS   = YES
 # set to NO
 # The default value is: NO.
 
-HAVE_DOT               = NO
+HAVE_DOT               = YES
 
 # The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
 # to run in parallel. When set to 0 doxygen will base this on the number of
@@ -2642,7 +2642,7 @@ DOT_WRAP_THRESHOLD     = 17
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-TEMPLATE_RELATIONS     = NO
+TEMPLATE_RELATIONS     = YES
 
 # If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
 # YES then doxygen will generate a graph for each documented file showing the
@@ -2677,7 +2677,7 @@ INCLUDED_BY_GRAPH      = YES
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-CALL_GRAPH             = NO
+CALL_GRAPH             = YES
 
 # If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
 # dependency graph for every global function or class method.