static PyObject *Revision_get_object_data(
Revision *self, PyObject *args, PyObject *kwds)
{
PyObject *ob_arg = NULL;
static char *kwlist[] = { "ob", NULL };
if (!PyArg_ParseTupleAndKeywords(
args, kwds, "O!:Revision.get_object_data", kwlist,
&ObjectType, &ob_arg))
return NULL;
xorn_object_t ob = ((Object *)ob_arg)->ob;
xorn_obtype_t type = xorn_get_object_type(self->rev, ob);
switch (type) {
case xorn_obtype_none:
PyErr_SetNone(PyExc_KeyError);
return NULL;
case xornsch_obtype_arc:
return construct_arc(xornsch_get_arc_data(self->rev, ob));
case xornsch_obtype_box:
return construct_box(xornsch_get_box_data(self->rev, ob));
case xornsch_obtype_circle:
return construct_circle(
xornsch_get_circle_data(self->rev, ob));
case xornsch_obtype_component:
return construct_component(
xornsch_get_component_data(self->rev, ob));
case xornsch_obtype_line:
return construct_line(xornsch_get_line_data(self->rev, ob));
case xornsch_obtype_net:
return construct_net(xornsch_get_net_data(self->rev, ob));
case xornsch_obtype_path:
return construct_path(xornsch_get_path_data(self->rev, ob));
case xornsch_obtype_picture:
return construct_picture(
xornsch_get_picture_data(self->rev, ob));
case xornsch_obtype_text:
return construct_text(xornsch_get_text_data(self->rev, ob));
}
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "Object type not supported (%d)", type);
PyErr_SetString(PyExc_ValueError, buf);
return NULL;
}
int main ()
{
CGAL::set_pretty_mode(std::cout); // for nice printouts.
// Traits class object
Traits_2 traits;
Traits_2::Construct_x_monotone_curve_2 construct_arc
= traits.construct_x_monotone_curve_2_object();
// container storing all arcs
std::vector<Traits_2::X_monotone_curve_2> arcs;
// Create an arc supported by the function y = 0.1x^4 - 0.6x^2 + 0.8 / 0.1,
// defined over the interval [-2.1, 2.1]:
Rat_vec P1,Q1;
P1.push_back(Rational(8,10));
P1.push_back(Rational(0));
P1.push_back(Rational(-6,10));
P1.push_back(Rational(0));
P1.push_back(Rational(1,10));
Q1.push_back(Rational(1,10));
Alg_real_1 l(Traits_2::Algebraic_kernel_d_1::Bound(-2.1));
Alg_real_1 r(Traits_2::Algebraic_kernel_d_1::Bound(2.1));
arcs.push_back(construct_arc(P1.begin(), P1.end(), Q1.begin(), Q1.end(), l, r));
// Create an arc supported by the function y = 0.1x / (0.1 + 0.1x^2),
// defined over the interval [-3, 3]:
Rat_vec P2,Q2;
P2.push_back(Rational(0));
P2.push_back(Rational(1,10));
Q2.push_back(Rational(1,10));
Q2.push_back(Rational(0));
Q2.push_back(Rational(1,10));
arcs.push_back(construct_arc(P2.begin(), P2.end(), Q2.begin(), Q2.end(),
Alg_real_1(-3), Alg_real_1(3)));
// Create an arc supported by the parbola y = 0.8 - 0.1x^2 / 0.1,
// defined over the interval [-2, 3]:
Rat_vec P3,Q3;
P3.push_back(Rational(4,5));
P3.push_back(Rational(0));
P3.push_back(Rational(-1,10));
Q3.push_back(Rational(1,10));
arcs.push_back(construct_arc(P3.begin(), P3.end(), Q3.begin(), Q3.end(),
Alg_real_1(-2), Alg_real_1(3)));
// Create an arc supported by the line y = -0.2x / 0.1,
// defined over the interval [-3, 0]:
Rat_vec P4,Q4;
P4.push_back(Rational(0));
P4.push_back(Rational(-1,5));
Q4.push_back(Rational(1,10));
arcs.push_back(construct_arc(P4.begin(), P4.end(), Q4.begin(), Q4.end(),
Alg_real_1(-3), Alg_real_1(0)));
// Print the arcs.
for (unsigned int i(0); i < arcs.size(); ++i)
std::cout << arcs[i]<<std::endl;
// Construct the arrangement of the four arcs.
Arrangement_2 arr(&traits);
insert(arr, arcs.begin(), arcs.end());
// Print the arrangement size.
std::cout << "The arrangement size:" << std::endl
<< " V = " << arr.number_of_vertices()
<< ", E = " << arr.number_of_edges()
<< ", F = " << arr.number_of_faces() << std::endl;
return 0;
}
