fix doc warnings

Isosurfacing_3/doc/Isosurfacing_3/Isosurfacing_3.txt

@@ -57,14 +57,14 @@ A vertex is created for each grid edge with a sign change, i.e., where the edge
 More specifically, the vertex position is computed via linear interpolation of
 the scalar field values evaluated at the cell corners forming the edge.
 These vertices are connected to form triangles within the cell, depending on the configuration
-of signs at the cell corners. Figure \ref Fig_IsosurfacingMCCases illustrates the configurations in 2D.
+of signs at the cell corners. Figure \cgalFigureRef{IsosurfacingMCCases} illustrates the configurations in 2D.
 In 3D, there is no less than 33 cases (not shown) \cgalCite{cgal:c-mcctci-95}.
 
-\cgalFigureAnchor{Fig_IsosurfacingMCCases}
+\cgalFigureAnchor{IsosurfacingMCCases}
 <center>
 <img src="MC_cases.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionBegin{Fig_IsosurfacingMCCases}
+\cgalFigureCaptionBegin{IsosurfacingMCCases}
 Examples of some configurations for 2D Marching Cubes.
 \cgalFigureCaptionEnd
 
@@ -84,7 +84,7 @@ MC often generates more triangles, and more skinny triangles with small or large
 depicting the mesh edges in black in addition to the shaded facets.
 
 MC does not preserve the sharp features present in the isovalue of the input scalar field
-(see Figure \ref Fig_IsosurfacingMCDC).
+(see Figure \cgalFigureRef{IsosurfacingMCDC}).
 
 \subsection SubSecTMC Topologically Correct Marching Cubes (TMC)
 
@@ -97,11 +97,11 @@ To achieve this, the algorithm can insert additional vertices within cells.
 Furthermore, the mesh is guaranteed to be 2-manifold and watertight, as long as the isosurface
 does not intersect the domain boundaries. [and the input is 2-manifold?]
 
-\cgalFigureAnchor{Fig_IsosurfacingMCTMC}
+\cgalFigureAnchor{IsosurfacingMCTMC}
 <center>
 <img src="MC_TMC.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionBegin{Fig_IsosurfacingMCTMC}
+\cgalFigureCaptionBegin{IsosurfacingMCTMC}
 MC vs TMC [todo]
 \cgalFigureCaptionEnd
 
@@ -114,11 +114,11 @@ of the incident cells. For a uniform hexahedral grid, this results into a quadri
 On the other hand it generates fewer faces and high quality faces than Marching Cubes, in general.
 Finally, its main advantage over Marching Cubes is its ability to recover sharp creases and corners.
 
-\cgalFigureAnchor{Fig_IsosurfacingMCDC}
+\cgalFigureAnchor{IsosurfacingMCDC}
 <center>
 <img src="MC_DC.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionBegin{Fig_IsosurfacingMCDC}
+\cgalFigureCaptionBegin{IsosurfacingMCDC}
 Comparison between a mesh of a CSG shape generated by Marching Cubes (left) and %Dual Contouring (right).
 \cgalFigureCaptionEnd
 
@@ -153,13 +153,13 @@ of the output surface mesh.
 (** not guaranteed)
 
 Note that the output mesh has boundaries when the isosurface intersects the domain boundaries,
-regardless of the method (see Figure \ref Fig_IsosurfacingOpen).
+regardless of the method (see Figure \cgalFigureRef{IsosurfacingOpen}).
 
-\cgalFigureAnchor{Fig_IsosurfacingOpen}
+\cgalFigureAnchor{IsosurfacingOpen}
 <center>
 <img src="MC_DC_open.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionBegin{Fig_IsosurfacingOpen}
+\cgalFigureCaptionBegin{IsosurfacingOpen}
 Output meshes can have boundaries when the isosurface intersects the domain boundary:
 outputs of Marching Cubes (left) and %Dual Contouring (right) for an implicit sphere
 of radius 1.1 and a domain of size 2x2x2, both centered at the origin.
@@ -240,11 +240,10 @@ Both these domain models possess template parameters to allow the user to custom
 
 Due to their cell-based nature, the isosurfacing algorithms are well-suited for parallel execution.
 
-\cgalFigureAnchor{fig_IsosurfacingPerf}
+\cgalFigureAnchor{IsosurfacingPerf}
 <center>
 <img src="MC_DC_performance.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionEnd
 
 \section SecIsosurfacingExamples Examples
 
@@ -268,11 +267,11 @@ that enable triangulating (or not) the output, and to constrain the vertex place
 
 \cgalExample{Isosurfacing_3/dual_contouring.cpp}
 
-\cgalFigureAnchor{Fig_IsosurfacingDC}
+\cgalFigureAnchor{IsosurfacingDC}
 <center>
 <img src="DC.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionBegin{Fig_IsosurfacingDC}
+\cgalFigureCaptionBegin{IsosurfacingDC}
 Results of the %Dual Contouring algorithm: untriangulated (left column) or triangulated (right column),
 unconstrained placement (top row) or constrained placement (bottom row).
 \cgalFigureCaptionEnd
@@ -298,11 +297,11 @@ from this voxel data.
 
 \cgalExample{Isosurfacing_3/contouring_inrimage.cpp}
 
-\cgalFigureAnchor{Fig_IsosurfacingDC}
+\cgalFigureAnchor{IsosurfacingDCEx}
 <center>
 <img src="isosurfacing_inrimage.png" style="max-width:70%;"/>
 </center>
-\cgalFigureCaptionBegin{Fig_IsosurfacingDC}
+\cgalFigureCaptionBegin{IsosurfacingDCEx}
 Results of the Topologically Correct Marching Cubes algorithm for different isovalues (1, 2, and 2.9)
 on the skull model.
 \cgalFigureCaptionEnd