Replace not so nice cc_ref_up_arrow.gif used with Figures references,

by a nicer Unicode pointing finger.

.gitattributes

@@ -2288,7 +2288,6 @@ Manual_tools/src/latex_converter_config/gif/cc_prod.gif -text svneol=unset#image
 Manual_tools/src/latex_converter_config/gif/cc_propto.gif -text svneol=unset#image/gif
 Manual_tools/src/latex_converter_config/gif/cc_rangle.gif -text svneol=unset#image/gif
 Manual_tools/src/latex_converter_config/gif/cc_rceil.gif -text svneol=unset#image/gif
-Manual_tools/src/latex_converter_config/gif/cc_ref_up_arrow.gif -text svneol=unset#image/gif
 Manual_tools/src/latex_converter_config/gif/cc_rfloor.gif -text svneol=unset#image/gif
 Manual_tools/src/latex_converter_config/gif/cc_rhd.gif -text svneol=unset#image/gif
 Manual_tools/src/latex_converter_config/gif/cc_rho.gif -text svneol=unset#image/gif

Generator/doc_tex/Generator/generators.tex

@@ -86,9 +86,8 @@ We want to generate a test set of 1000 points, where 60\% are chosen
 randomly in a small disc, 20\% are from a larger grid, 10\% are duplicates
 points, and 10\% collinear points. A random shuffle removes the
 construction order from the test set. See \ccTexHtml{%
-Figure~\ref{figurePointGenerator}}{Figure <A HREF="#PointGenerators">
-  <IMG SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10"
-  HEIGHT="10"></A>} for the example output.
+Figure~\ref{figurePointGenerator}}{Figure <A HREF="#PointGenerators">&#x261E;</A>}
+for the example output.
 
 \ccIncludeExampleCode{Generator/random_degenerate_point_set.cpp}
 
@@ -130,9 +129,7 @@ The second example demonstrates the point generators with integer
 points. Arithmetic with \ccc{double}s is sufficient to produce
 regular integer grids. See \ccTexHtml{%
 Figure~\ref{figureIntegerPointGenerator}}{Figure 
-  <A HREF="#IntegerPointGenerators">
-  <IMG SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10"
-  HEIGHT="10"></A>}
+  <A HREF="#IntegerPointGenerators">&#x261E;</A>}
 for the example output.
 
 \ccIncludeExampleCode{Generator/random_grid.cpp}
@@ -169,8 +166,7 @@ We want to generate a test set of 200 segments, where one endpoint is
 chosen randomly from a horizontal segment of length 200, and the other
 endpoint is chosen randomly from a circle of radius 250. See
 \ccTexHtml{Figure~\ref{figureSegmentGenerator}}{Figure <A
-  HREF="#SegmentGenerator"> <IMG SRC="cc_ref_up_arrow.gif"
-  ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>} for the example
+  HREF="#SegmentGenerator">&#x261E;</A>} for the example
 output.
 
 \begin{ccTexOnly}
@@ -209,8 +205,7 @@ output.
 
 The second example generates a regular structure of 100 segments; see 
 \ccTexHtml{Figure~\ref{figureSegmentGeneratorFan}}{Figure <A
-  HREF="#SegmentGeneratorFan"> <IMG SRC="cc_ref_up_arrow.gif"
-  ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>} for the example
+  HREF="#SegmentGeneratorFan">&#x261E;</A>} for the example
 output. It uses the \ccc{Points_on_segment_2}%
 \lcTex{\ccIndexGlobalFunction{Points_on_segment_2}} iterator,
 \ccc{Join_input_iterator_2}%

HalfedgeDS/doc_tex/HalfedgeDS/main.tex

@@ -121,8 +121,7 @@ the old implementation.
 \end{ccHtmlOnly}
 
 Figure~\ccTexHtml{\ref{figureHalfedgeDSDesign}}{}\begin{ccHtmlOnly}
-  <A HREF="Chapter_main.html#figureHalfedgeDSDesign"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="Chapter_main.html#figureHalfedgeDSDesign">&#x261E;</A>
 \end{ccHtmlOnly}
 illustrates the responsibilities of the three layers of the software
 design, with the \ccc{CGAL::Polyhedron_3} as an example for the top
@@ -167,9 +166,7 @@ functionality into separate helper classes, \ccc{HalfedgeDS_decorator},
 \ccc{HalfedgeDS_const_decorator}, and \ccc{HalfedgeDS_items_decorator},
 which are not shown in
 Figure~\ccTexHtml{\ref{figureHalfedgeDSDesign}}{}\begin{ccHtmlOnly} <A
-HREF="Chapter_main.html#figureHalfedgeDSDesign"><IMG
-SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10"
-HEIGHT="10"></A>
+HREF="Chapter_main.html#figureHalfedgeDSDesign">&#x261E;</A>
 \end{ccHtmlOnly}, but would be placed at the side of the \ccc{HalfedgeDS}
 since they broaden that interface but do not hide it.  These helper
 classes contain operations that are useful to implement the operations

HalfedgeDS/doc_tex/HalfedgeDS_ref/HalfedgeDS.tex

@@ -61,8 +61,7 @@ is stored.  Reduced variants of the halfedge data structure can omit
 some of these incidences, for example the reference to halfedges in
 vertices or the storage of vertices at all. See 
 Figure~\ccTexHtml{\ref{figureOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="Concept_HalfedgeDS.html#figureOptionalMethods"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="Concept_HalfedgeDS.html#figureOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 for the incidences, the mandatory and optional member functions
 possible for vertices, halfedges, and faces.

HalfedgeDS/doc_tex/HalfedgeDS_ref/HalfedgeDSFace.tex

@@ -29,8 +29,7 @@ points to the face.  A type tag indicates whether the related member
 functions are supported. 
 Figure~\ccTexHtml{\ref{figureHalfedgeDSOptionalMethods} 
 on page \pageref{figureHalfedgeDSOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="Concept_HalfedgeDS.html#figureHalfedgeDSOptionalMethods"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="Concept_HalfedgeDS.html#figureHalfedgeDSOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a halfedge and its incident
 halfedges, vertices, and faces.

HalfedgeDS/doc_tex/HalfedgeDS_ref/HalfedgeDSHalfedge.tex

@@ -34,8 +34,7 @@ previous halfedge along the face, a reference to an incident vertex,
 and a reference to an incident face. Type tags indicate whether the
 related member functions are supported.
 Figure~\ccTexHtml{\ref{figureHalfedgeDSOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureHalfedgeDSOptionalMethods"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureHalfedgeDSOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a halfedge and its incident
 halfedges, vertices, and faces.

HalfedgeDS/doc_tex/HalfedgeDS_ref/HalfedgeDSVertex.tex

@@ -31,8 +31,7 @@ points to the vertex. A type tag indicates whether the related member
 functions are supported. 
 Figure~\ccTexHtml{\ref{figureHalfedgeDSOptionalMethods} 
 on page \pageref{figureHalfedgeDSOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="Concept_HalfedgeDS.html#figureHalfedgeDSOptionalMethods"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="Concept_HalfedgeDS.html#figureHalfedgeDSOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a halfedge and its incident
 halfedges, vertices, and faces.

Manual_tools/src/cc_anchor_filter.lex

@@ -97,8 +97,7 @@ Dictionary
   dict_cc,
   dict_internal;
 
-const string reference_icon = "<IMG SRC=\"cc_ref_up_arrow.gif\" "
-            "ALT=\"reference\" WIDTH=\"10\" HEIGHT=\"10\">";
+const string reference_icon = "&#x261E;"; // Unicode for pointing finger.
 
 string   output_path, reftext;
 ofstream output_file;

Nef_3/doc_tex/Nef_3_ref/Nef_polyhedron_3_Halfedge.tex

@@ -28,13 +28,11 @@ either if we want to have the source vertex of a halfedge, or if we want to
 have the vertex in the center of the sphere map a svertex lies on. 
 Figure~\ccTexHtml{\ref{figureNef3HalfedgeIncidences} on page 
 \pageref{figureNef3HalfedgeIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3HalfedgeIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3HalfedgeIncidences">&#x261E;</A>
 \end{ccHtmlOnly} and
 figure~\ccTexHtml{\ref{figureNef3FacetIncidences} on page 
 \pageref{figureNef3FacetIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3HalffacetIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3HalffacetIncidences">&#x261E;</A>
 \end{ccHtmlOnly} illustrate the incidence of a svertex on a sphere map and of
 a halfedge in the global structure. 
 

Nef_3/doc_tex/Nef_3_ref/Nef_polyhedron_3_SFace.tex

@@ -20,13 +20,11 @@
 
 Figure~\ccTexHtml{\ref{figureNef3HalfedgeIncidences} on page 
 \pageref{figureNef3HalfedgeIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3HalfedgeIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3HalfedgeIncidences">&#x261E;</A>
 \end{ccHtmlOnly} and
 figure~\ccTexHtml{\ref{figureNef3HalfloopIncidences} on page 
 \pageref{figureNef3HalfloopIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3HalfloopIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3HalfloopIncidences">&#x261E;</A>
 \end{ccHtmlOnly} illustrate the incidences of an sface. An sface is described
 by its boundaries. An entry item to each boundary cycle can be accessed
 using the iterator range (\ccc{sface_cycles_begin()}/\ccc{sface_cycles_end()}).

Nef_3/doc_tex/Nef_3_ref/Nef_polyhedron_3_SHalfedge.tex

@@ -21,8 +21,7 @@
 A shalfedge is a great arc on a sphere map. 
 Figure~\ccTexHtml{\ref{figureNef3HalfedgeIncidences} on page 
 \pageref{figureNef3HalfedgeIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3HalfedgeIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3HalfedgeIncidences">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a shalfedge and its incident
 shalfedges, svertices, and sfaces on a sphere map.  A shalfedge is 
@@ -67,8 +66,7 @@ used as a shortcut.
 The role of shalfedges in a facet is illustrated in 
 Figure~\ccTexHtml{\ref{figureNef3FacetIncidences} on page 
 \pageref{figureNef3FacetIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3FacetIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3FacetIncidences">&#x261E;</A>
 \end{ccHtmlOnly}. The \ccc{facet()} member function returns the facet 
 in which
 the shalfedge is part of one of the facet cycles. The successive assignment of 

Nef_3/doc_tex/Nef_3_ref/Nef_polyhedron_3_SHalfloop.tex

@@ -21,8 +21,7 @@
 A shalfloop is a great circle on a sphere map. 
 Figure~\ccTexHtml{\ref{figureNef3HalfloopIncidences} on page 
 \pageref{figureNef3HalfloopIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNef3HalfedgeIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNef3HalfedgeIncidences">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a shalfloop and its incident
 shalfloops, and sfaces on a sphere map.  A shalfloop is 

Nef_S2/doc_tex/Nef_S2_ref/Nef_polyhedron_S2_SFace.tex

@@ -20,13 +20,11 @@
 
 Figure~\ccTexHtml{\ref{figureNefS2SVertexIncidences} on page 
 \pageref{figureNefS2SVertexIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNefS2SVertexIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNefS2SVertexIncidences">&#x261E;</A>
 \end{ccHtmlOnly} and
 figure~\ccTexHtml{\ref{figureNefS2SHalfloopIncidences} on page 
 \pageref{figureNefS2SHalfloopIncidences}}{}\begin{ccHtmlOnly}
-  <A HREF="#figureNefS2SHalfloopIncidences"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figureNefS2SHalfloopIncidences">&#x261E;</A>
 \end{ccHtmlOnly} illustrate the incidences of an sface. An sface is described
 by its boundaries. An entry item to each boundary cycle can be accessed
 using the iterator range (\ccc{sface_cycles_begin()}/\ccc{sface_cycles_end()}).

Polyhedron/doc_tex/Polyhedron_ref/Polyhedron_3_Facet.tex

@@ -23,8 +23,7 @@ incident halfedge that points to the facet. Type tags indicate whether
 these member functions are supported.  
 Figure~\ccTexHtml{\ref{figurePolyOptionalMethods} on page
   \pageref{figurePolyOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="Class_Polyhedron_3-Traits---Halfedge.html#figurePolyOptionalMethods"><IMG
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="Class_Polyhedron_3-Traits---Halfedge.html#figurePolyOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a halfedge and its incident
 halfedges, vertices, and facets. The circulator is assignable to the

Polyhedron/doc_tex/Polyhedron_ref/Polyhedron_3_Halfedge.tex

@@ -20,8 +20,7 @@
   
 Figure~\ccTexHtml{\ref{figurePolyOptionalMethods} on page 
 \pageref{figurePolyOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="#figurePolyOptionalMethods"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="#figurePolyOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a halfedge and its incident
 halfedges, vertices, and facets.  A halfedge is an oriented edge

Polyhedron/doc_tex/Polyhedron_ref/Polyhedron_3_Vertex.tex

@@ -23,8 +23,7 @@ halfedge that points to the vertex.  Type tags indicate whether these
 member functions are supported.  
 Figure~\ccTexHtml{\ref{figurePolyOptionalMethods} on page 
 \pageref{figurePolyOptionalMethods}}{}\begin{ccHtmlOnly}
-  <A HREF="Class_Polyhedron_3-Traits---Halfedge.html#figurePolyOptionalMethods"><IMG 
-  SRC="cc_ref_up_arrow.gif" ALT="reference arrow" WIDTH="10" HEIGHT="10"></A>
+  <A HREF="Class_Polyhedron_3-Traits---Halfedge.html#figurePolyOptionalMethods">&#x261E;</A>
 \end{ccHtmlOnly}
 depicts the relationship between a halfedge and its incident
 halfedges, vertices, and facets. The circulator is assignable to the