diff --git a/doc/doxygen_project.txt.in b/doc/doxygen_project.txt.in
index c70c3673d3..f3ba0d167e 100644
--- a/doc/doxygen_project.txt.in
+++ b/doc/doxygen_project.txt.in
@@ -2351,7 +2351,7 @@ DIRECTORY_GRAPH        = YES
 # The default value is: png.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_IMAGE_FORMAT       = png
+DOT_IMAGE_FORMAT       = svg
 
 # If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
 # enable generation of interactive SVG images that allow zooming and panning.
@@ -2363,7 +2363,7 @@ DOT_IMAGE_FORMAT       = png
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-INTERACTIVE_SVG        = NO
+INTERACTIVE_SVG        = YES
 
 # The DOT_PATH tag can be used to specify the path where the dot tool can be
 # found. If left blank, it is assumed the dot tool can be found in the path.
@@ -2413,7 +2413,7 @@ PLANTUML_INCLUDE_PATH  =
 # Minimum value: 0, maximum value: 10000, default value: 50.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_GRAPH_MAX_NODES    = 50
+DOT_GRAPH_MAX_NODES    = 150
 
 # The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
 # generated by dot. A depth value of 3 means that only nodes reachable from the
@@ -2446,7 +2446,7 @@ DOT_TRANSPARENT        = YES
 # The default value is: NO.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_MULTI_TARGETS      = NO
+DOT_MULTI_TARGETS      = YES
 
 # If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
 # explaining the meaning of the various boxes and arrows in the dot generated
diff --git a/scripts/build_docs.sh b/scripts/build_docs.sh
index cdbf591e62..1d9a42dd8d 100755
--- a/scripts/build_docs.sh
+++ b/scripts/build_docs.sh
@@ -15,6 +15,9 @@ skipSVN="NO"
 MRPT_USE_SEARCHENGINE="YES"
 skipMAINMRPTDOCS=0
 
+# Generate call graphs: obbey MRPT_genCALLERGRAPHS if defined. Yes, otherwise.
+genCALLERGRAPHS=${MRPT_genCALLERGRAPHS:-YES}
+
 emptyARGS=1
 errARGS=0
 
@@ -230,6 +233,7 @@ export MRPT_LIST_INPUT
 export MRPT_EXAMPLE_PATH
 export genHTML
 export outCHM
+export genCALLERGRAPHS
 export CHM_FILENAME
 export HHC_INVOKING_CODE
 export MRPT_USE_SEARCHENGINE