CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

With the information provided I would say that you are trying to copy an 
object of type CircularArcGraphicsItem<T> that is non copyable.

Sebastien.

On 10/01/2012 02:10 PM, Wang Hetao wrote:
> Here is the compiling output:
>
> make: Entering directory
> `/home/taotao/codecs/dt_perturb_area-build-desktop-PATH___Qt___'
> g++ -c -pipe -O2 -Wall -W -D_REENTRANT -DQT_WEBKIT -DQT_NO_DEBUG
> -DQT_GUI_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/share/qt4/mkspecs/linux-g++
> -I../dt_perturb_area -I/usr/include/qt4/QtCore -I/usr/include/qt4/QtGui
> -I/usr/include/qt4 -I. -I../dt_perturb_area -I. -o main.o
> ../dt_perturb_area/main.cpp
> In file included from ../dt_perturb_area/main.cpp:2:0:
> ../dt_perturb_area/Point_Arrangement.hpp: In constructor
> 'Point_Arrangement::Point_Arrangement(const Point_info&)':
> ../dt_perturb_area/Point_Arrangement.hpp:47:48: warning: comparison between
> signed and unsigned integer expressions [-Wsign-compare]
> ../dt_perturb_area/Point_Arrangement.hpp: In member function 'Point
> Point_Arrangement::perturb_to_arc()':
> ../dt_perturb_area/Point_Arrangement.hpp:112:44: warning: comparison between
> signed and unsigned integer expressions [-Wsign-compare]
> ../dt_perturb_area/Point_Arrangement.hpp: In member function 'double
> Point_Arrangement::get_max_perturb_dist()':
> ../dt_perturb_area/Point_Arrangement.hpp:144:44: warning: comparison between
> signed and unsigned integer expressions [-Wsign-compare]
> In file included from
> /usr/local/include/CGAL/Qt/CircularArcGraphicsItem.h:27:0,
>                   from ../dt_perturb_area/main.cpp:23:
> /usr/include/qt4/QtCore/qobject.h: In copy constructor
> 'CGAL::Qt::GraphicsItem::GraphicsItem(const CGAL::Qt::GraphicsItem&)':
> /usr/include/qt4/QtCore/qobject.h:333:5: error: 'QObject::QObject(const
> QObject&)' is private
> /usr/local/include/CGAL/Qt/GraphicsItem.h:38:23: error: within this context
> /usr/include/qt4/QtGui/qgraphicsitem.h:471:5: error:
> 'QGraphicsItem::QGraphicsItem(const QGraphicsItem&)' is private
> /usr/local/include/CGAL/Qt/GraphicsItem.h:38:23: error: within this context
> In file included from ../dt_perturb_area/main.cpp:23:0:
> /usr/local/include/CGAL/Qt/CircularArcGraphicsItem.h: In copy constructor
> 'CGAL::Qt::CircularArcGraphicsItem<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ::CircularArcGraphicsItem(const
> CGAL::Qt::CircularArcGraphicsItem<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > &)':
> /usr/local/include/CGAL/Qt/CircularArcGraphicsItem.h:38:7: note: synthesized
> method 'CGAL::Qt::GraphicsItem::GraphicsItem(const CGAL::Qt::GraphicsItem&)'
> first required here
> ../dt_perturb_area/main.cpp: In function 'const CircularArcGraphicsItem
> construct_arc(const CK_arc&, int)':
> ../dt_perturb_area/main.cpp:113:12: note: synthesized method
> 'CGAL::Qt::CircularArcGraphicsItem<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ::CircularArcGraphicsItem(const
> CGAL::Qt::CircularArcGraphicsItem<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > &)' first required here
> ../dt_perturb_area/main.cpp: In function 'double
> get_perturb_range_area(const
> std::vector<CGAL::Circular_arc_2&lt;CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > > &, const Point&)':
> ../dt_perturb_area/main.cpp:161:36: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
> ../dt_perturb_area/main.cpp: In function 'int main(int, char**)':
> ../dt_perturb_area/main.cpp:194:37: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
> ../dt_perturb_area/main.cpp:242:51: warning: comparison between signed and
> unsigned integer expressions [-Wsign-compare]
> In file included from /usr/local/include/CGAL/user_classes.h:29:0,
>                   from
> /usr/local/include/CGAL/Kernel/global_functions_2.h:33,
>                   from /usr/local/include/CGAL/Kernel/global_functions.h:31,
>                   from /usr/local/include/CGAL/Cartesian/Cartesian_base.h:30,
>                   from /usr/local/include/CGAL/Simple_cartesian.h:28,
>                   from
> /usr/local/include/CGAL/Exact_predicates_inexact_constructions_kernel.h:28,
>                   from ../dt_perturb_area/Common_definations.h:4,
>                   from ../dt_perturb_area/main.cpp:1:
> /usr/local/include/CGAL/Point_2.h: In constructor
> 'CGAL::Point_2<R_>::Point_2(const T1&, const T2&) [with T1 =
> CGAL::Sqrt_extension<CGAL::Quotient&lt;CGAL::MP_Float>,
> CGAL::Quotient<CGAL::MP_Float>, CGAL::Boolean_tag<true>,
> CGAL::Boolean_tag<true>  >, T2 =
> CGAL::Sqrt_extension<CGAL::Quotient&lt;CGAL::MP_Float>,
> CGAL::Quotient<CGAL::MP_Float>, CGAL::Boolean_tag<true>,
> CGAL::Boolean_tag<true>  >, R_ =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > ]':
> ../dt_perturb_area/main.cpp:102:98:   instantiated from here
> /usr/local/include/CGAL/Point_2.h:81:67: error: no match for call to
> '(CGAL::Cartesian_base_ref_count<CGAL::Quotient&lt;CGAL::MP_Float>,
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ::Construct_point_2 {aka
> CGAL::CartesianKernelFunctors::Construct_point_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > }) (CGAL::Return_base_tag, const
> CGAL::Sqrt_extension<CGAL::Quotient&lt;CGAL::MP_Float>,
> CGAL::Quotient<CGAL::MP_Float>, CGAL::Boolean_tag<true>,
> CGAL::Boolean_tag<true>  >&, const
> CGAL::Sqrt_extension<CGAL::Quotient&lt;CGAL::MP_Float>,
> CGAL::Quotient<CGAL::MP_Float>, CGAL::Boolean_tag<true>,
> CGAL::Boolean_tag<true>  >&)'
> /usr/local/include/CGAL/Cartesian/function_objects.h:2832:9: note:
> candidates are:
> /usr/local/include/CGAL/Cartesian/function_objects.h:2842:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Rep
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(CGAL::Return_base_tag,
> CGAL::Origin) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Rep =
> CGAL::PointC2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2842:5: note:
> candidate expects 2 arguments, 3 provided
> /usr/local/include/CGAL/Cartesian/function_objects.h:2846:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Rep
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(CGAL::Return_base_tag,
> const RT&, const RT&) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Rep =
> CGAL::PointC2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::RT =
> CGAL::Quotient<CGAL::MP_Float>]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2846:5: note:   no
> known conversion for argument 2 from 'const
> CGAL::Sqrt_extension<CGAL::Quotient&lt;CGAL::MP_Float>,
> CGAL::Quotient<CGAL::MP_Float>, CGAL::Boolean_tag<true>,
> CGAL::Boolean_tag<true>  >' to 'const RT&  {aka const
> CGAL::Quotient<CGAL::MP_Float>&}'
> /usr/local/include/CGAL/Cartesian/function_objects.h:2850:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Rep
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(CGAL::Return_base_tag,
> const RT&, const RT&, const RT&) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Rep =
> CGAL::PointC2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::RT =
> CGAL::Quotient<CGAL::MP_Float>]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2850:5: note:
> candidate expects 4 arguments, 3 provided
> /usr/local/include/CGAL/Cartesian/function_objects.h:2854:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(const
> Line_2&) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2 =
> CGAL::Point_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Line_2 =
> CGAL::Line_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2854:5: note:
> candidate expects 1 argument, 3 provided
> /usr/local/include/CGAL/Cartesian/function_objects.h:2863:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(const
> Line_2&, int) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2 =
> CGAL::Point_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Line_2 =
> CGAL::Line_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2863:5: note:
> candidate expects 2 arguments, 3 provided
> /usr/local/include/CGAL/Cartesian/function_objects.h:2873:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(CGAL::Origin)
> const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2 =
> CGAL::Point_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > ]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2873:5: note:
> candidate expects 1 argument, 3 provided
> /usr/local/include/CGAL/Cartesian/function_objects.h:2877:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(const RT&,
> const RT&) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2 =
> CGAL::Point_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::RT =
> CGAL::Quotient<CGAL::MP_Float>]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2877:5: note:
> candidate expects 2 arguments, 3 provided
> /usr/local/include/CGAL/Cartesian/function_objects.h:2881:5: note:
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2
> CGAL::CartesianKernelFunctors::Construct_point_2<K>::operator()(const RT&,
> const RT&, const RT&) const [with K =
> CGAL::Filtered_bbox_circular_kernel_2<CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::Point_2 =
> CGAL::Point_2<CGAL::Filtered_bbox_circular_kernel_2&lt;CGAL::Circular_kernel_2&lt;CGAL::Cartesian&lt;CGAL::Quotient&lt;CGAL::MP_Float>
> > , CGAL::Algebraic_kernel_for_circles_2_2<CGAL::Quotient&lt;CGAL::MP_Float>
> > > > > , CGAL::CartesianKernelFunctors::Construct_point_2<K>::RT =
> CGAL::Quotient<CGAL::MP_Float>]
> /usr/local/include/CGAL/Cartesian/function_objects.h:2881:5: note:   no
> known conversion for argument 1 from 'CGAL::Return_base_tag' to 'const RT&
> {aka const CGAL::Quotient<CGAL::MP_Float>&}'
>
> I don't know why,  maybe this is a CGAL bug.
>
>
>
> --
> View this message in context: 
> http://cgal-discuss.949826.n4.nabble.com/Error-occured-when-drawing-arcs-with-CGAL-Qt-CircularArcGraphicsItem-tp4655929.html
> Sent from the cgal-discuss mailing list archive at Nabble.com.