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test_geometry_intersection.cc
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rAKA akantu
test_geometry_intersection.cc
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/**
* Copyright (©) 2015-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*/
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "geom_helper_functions.hh"
#include "mesh_geom_factory.hh"
#include "tree_type_helper.hh"
#include "mesh_geom_common.hh"
#include <iostream>
#include <iterator>
#include <CGAL/Exact_spherical_kernel_3.h>
#include <CGAL/Spherical_kernel_intersections.h>
#include <CGAL/intersections.h>
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
typedef
cgal
::
Cartesian
K
;
typedef
IntersectionTypeHelper
<
TreeTypeHelper
<
Triangle
<
K
>
,
K
>
,
K
::
Segment_3
>::
intersection_type
result_type
;
typedef
cgal
::
Spherical
SK
;
typedef
boost
::
variant
<
std
::
pair
<
SK
::
Circular_arc_point_3
,
UInt
>>
sk_inter_res
;
/*typedef CGAL::cpp11::result_of<SK::Intersect_3(SK::Line_arc_3,
SK::Sphere_3,
std::back_insert_iterator<
std::list<sk_inter_res> >)>::type sk_res;*/
typedef
std
::
pair
<
SK
::
Circular_arc_point_3
,
UInt
>
pair_type
;
/* -------------------------------------------------------------------------- */
int
main
(
int
argc
,
char
*
argv
[])
{
initialize
(
""
,
argc
,
argv
);
debug
::
setDebugLevel
(
dblWarning
);
Mesh
mesh
(
2
);
mesh
.
read
(
"test_geometry_triangle.msh"
);
MeshGeomFactory
<
2
,
_triangle_3
,
Triangle
<
K
>
,
K
>
factory
(
mesh
);
factory
.
constructData
();
const
TreeTypeHelper
<
Triangle
<
K
>
,
K
>::
tree
&
tree
=
factory
.
getTree
();
K
::
Point_3
a
(
0.
,
0.25
,
0.
),
b
(
1.
,
0.25
,
0.
);
K
::
Segment_3
line
(
a
,
b
);
K
::
Point_3
begin
(
a
),
intermediate
(
0.25
,
0.25
,
0.
),
end
(
0.75
,
0.25
,
0.
);
K
::
Segment_3
result_0
(
begin
,
intermediate
),
result_1
(
intermediate
,
end
);
std
::
list
<
result_type
>
list_of_intersections
;
tree
.
all_intersections
(
line
,
std
::
back_inserter
(
list_of_intersections
));
const
result_type
&
intersection_0
=
list_of_intersections
.
back
();
const
result_type
&
intersection_1
=
list_of_intersections
.
front
();
if
(
!
intersection_0
||
!
intersection_1
)
return
EXIT_FAILURE
;
/// *-> first is the intersection ; *->second is the primitive id
if
(
const
K
::
Segment_3
*
segment
=
boost
::
get
<
K
::
Segment_3
>
(
&
(
intersection_0
->
first
)))
{
if
(
!
compareSegments
(
*
segment
,
result_0
))
{
return
EXIT_FAILURE
;
}
}
else
return
EXIT_FAILURE
;
if
(
const
K
::
Segment_3
*
segment
=
boost
::
get
<
K
::
Segment_3
>
(
&
(
intersection_1
->
first
)))
{
if
(
!
compareSegments
(
*
segment
,
result_1
))
{
return
EXIT_FAILURE
;
}
}
else
return
EXIT_FAILURE
;
SK
::
Sphere_3
sphere
(
SK
::
Point_3
(
0
,
0
,
0
),
3.
);
SK
::
Segment_3
seg
(
SK
::
Point_3
(
0
,
0
,
0
),
SK
::
Point_3
(
2.
,
2.
,
2.
));
SK
::
Line_arc_3
arc
(
seg
);
std
::
list
<
sk_inter_res
>
s_results
;
CGAL
::
intersection
(
arc
,
sphere
,
std
::
back_inserter
(
s_results
));
if
(
pair_type
*
pair
=
boost
::
get
<
pair_type
>
(
&
s_results
.
front
()))
{
std
::
cout
<<
"xi = "
<<
to_double
(
pair
->
first
.
x
())
<<
", yi = "
<<
to_double
(
pair
->
first
.
y
())
<<
std
::
endl
;
if
(
!
comparePoints
(
pair
->
first
,
SK
::
Circular_arc_point_3
(
1.0
,
1.0
,
1.0
)))
return
EXIT_FAILURE
;
}
else
return
EXIT_FAILURE
;
MeshGeomFactory
<
2
,
_triangle_3
,
Line_arc
<
SK
>
,
SK
>
Sfactory
(
mesh
);
Sfactory
.
constructData
();
finalize
();
return
EXIT_SUCCESS
;
}
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