diff --git a/Constrained_triangulation_3/doc/Constrained_triangulation_3/Constrained_triangulation_3.txt b/Constrained_triangulation_3/doc/Constrained_triangulation_3/Constrained_triangulation_3.txt
index 8c8385b5912..c73976d5d5e 100644
--- a/Constrained_triangulation_3/doc/Constrained_triangulation_3/Constrained_triangulation_3.txt
+++ b/Constrained_triangulation_3/doc/Constrained_triangulation_3/Constrained_triangulation_3.txt
@@ -78,6 +78,16 @@ Hang Si \cgalCite{si2005meshing}, \cgalCite{si2015tetgen}.
 Steiner points are added on input edges and input facets
 of the PLC to make it tetrahedralizable.
 
+Figure \cgalFigureRef{plc2cdt_fig} shows an example of a conforming constrained
+Delaunay triangulation constructed from a PLC.
+
+
+\cgalFigureBegin{plc2cdt_fig, plc_to_cdt.png}
+Left : PLC (360 vertices);
+Middle : CCDT (2452 vertices);
+Right : the same CCDT seen with cutplane.
+\cgalFigureEnd
+
 
 \section CT_3_api API
 
diff --git a/Constrained_triangulation_3/doc/Constrained_triangulation_3/fig/plc_to_cdt.png b/Constrained_triangulation_3/doc/Constrained_triangulation_3/fig/plc_to_cdt.png
new file mode 100644
index 00000000000..43cdedc9e2b
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