Dear Efi,
probably I am doing something stupid, but it still does not
work. Here's the full program, copied almost directly from the 3.1
manual and replacing Arrangement_2 with Arrangement_with_history_2:
#include <iostream>
// CGAL stuff
#include <CGAL/Cartesian.h>
#include <CGAL/Quotient.h>
#include <CGAL/MP_Float.h>
#include <CGAL/Point_2.h>
#include <CGAL/enum.h>
#include <CGAL/intersections.h>
#include <CGAL/Arr_segment_traits_2.h>
#include <CGAL/Arr_default_dcel.h>
#include <CGAL/Arrangement_with_history_2.h>
typedef CGAL::Quotient<CGAL::MP_Float> NT;
typedef CGAL::Cartesian<NT> TutorialR;
typedef CGAL::Arr_segment_traits_2<TutorialR> Traits;
typedef Traits::Point_2 Point_2;
typedef Traits::Curve_2 Curve_2;
typedef Traits::X_monotone_curve_2 X_monotone_curve_2;
typedef CGAL::Arrangement_with_history_2<Traits> Arr_2;
int main() {
Arr_2 arr;
//insertion of the curves
arr.insert(Curve_2(Point_2(0, 0), Point_2(1, 1)));
arr.insert(Curve_2(Point_2(0, 1), Point_2(1, 0))); //traversal of the
curves
Arr_2::Curve_iterator cit;
Arr_2::Edge_iterator eit;
for (cit = arr.curve_node_begin(); cit != arr.curve_node_end(); ++cit) {
std::cout << std::endl << "Curve level:" << std::endl << cit->curve()
<< std::endl ;
std::cout << "Edge level:" << std::endl;
//traversal of the edges of the current curve
for (eit = cit->edges_begin(); eit != cit->edges_end(); ++eit) {
std::cout << eit->x_curve() << std::endl ;
}
}
return 0;
}
Still, when I'm trying to compile this, I get the same error messages as
before:
minitest.C:26: Fehler: »class Arr_2« hat kein Element namens »insert«
minitest.C:27: Fehler: »class Arr_2« hat kein Element namens »insert«
minitest.C:31: Fehler: »class Arr_2« hat kein Element namens
»curve_node_begin«
minitest.C:31: Fehler: »class Arr_2« hat kein Element namens »curve_node_end
«
minitest.C:33: Fehler: »class
CGAL::Arrangement_with_history_2<CGAL::Arr_segment_traits_2<CGAL::Cartesian<CGAL::Quotient<CGAL::MP_Float>
,
CGAL::Arr_default_dcel<CGAL::Arr_segment_traits_2<CGAL::Cartesian<CGAL::Quotient<CGAL::MP_Float>
::Curve_halfedges« hat kein Element namens »curve«
...
If you have any hint what I am doing wrong, I'd be grateful.
Thanks a lot,
Martin.
The functionality to are referring to (iterating over the curves) has
been preserved, but it is part of the arrangement with history data
structure. In the past We use to have Planar_map_2 and Arrangement_2.
These were replaced by Arrangement_2 and Arrangement_with_history_2, so
simply define the type Arr_2 to be Arrangement_with_history_2<...>
Martin Baeker wrote:
Dear experts,
I am currently updating my code from version 3.1 to 3.3.1.
In between, the Arrangement_2-class has changed drastically and I am
missing the old possibility of iterating over the curves of an
Arrangement:
Old code (taken almost directly from the 3.1 manual)
Arr_2 pm;
// Trial: Insert the segments one by one
pm.insert(seglist.begin(), seglist.end());
for (unsigned int i=0; i< seglist.size(); i++)
pm.insert_curve(seglist[i]);
std::cout << "\n\nWriting pm's halfedges" << std::endl;
Arr_2::Edge_iterator eit;
Arr_2::Curve_iterator cit;
unsigned int edgeCounter=0;
for (cit = pm.curve_node_begin(); cit != pm.curve_node_end(); ++cit)
{
std::cout << std::endl << "Curve level:" << std::endl <<
cit->curve()
<< std::endl ;
std::cout << "Edge level:" << std::endl;
edgeCounter++;
for (eit = cit->edges_begin(); eit != cit->edges_end(); ++eit) {
std::cout << eit->x_curve() << std::endl ;
}
}
However, this does not work anymore because there is no
Arr_2::Curve_iterator class anymore. I searched through the Docs but
could not find how this can be replaced with another iterator.
Is it still possible to traverse the Curves of an Arrangement?
Thanks a lot in advance,
Martin.
Priv.-Doz. Dr. Martin Bäker
Institut für Werkstoffe
Technische Universität Braunschweig
Langer Kamp 8
38106 Braunschweig
Germany
Tel.: 00-49-531-391-3073
Fax 00-49-531-391-3058
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Priv.-Doz. Dr. Martin Bäker
Institut für Werkstoffe
Technische Universität Braunschweig
Langer Kamp 8
38106 Braunschweig
Germany
Tel.: 00-49-531-391-3073
Fax 00-49-531-391-3058
e-mail --
You are currently subscribed to cgal-discuss.
To unsubscribe or access the archives, go to
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