cgal-discuss - drawing a conic arc using Qt_widget

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From: Mahmood Naderan <>
To: CGAL discuss <>
Subject: drawing a conic arc using Qt_widget
Date: Sat, 19 Apr 2008 03:53:55 -0700 (PDT)
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Hello,

It seems that QT widget can dra segments but not conic arcs. For example, the statement:

std::vector< Rat_point_2 > myPointsL;

*w << Rat_segment_2( myPointsL[i], myPointsL[i+1] );

has no error and in the output there is a segment. Now if I want to draw a conic arc:

      Rat_circle_2        Circ2;
      Conic_arc_2         con;
      Point_2             s, e;

*w << Conic_arc_2 ( Circ2, CGAL::COUNTERCLOCKWISE, s, e );

At this line I get:

error C2678: binary '<<' : no operator found which takes a left-hand operand of type 'CGAL::Qt_widget' (or there is no acceptable conversion)

Am I right? How can I draw a conic arc from one point to another point (with a given center)?

-------------------
Mahmood Naderan
http://ce.sharif.edu/~m_naderan

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drawing a conic arc using Qt_widget, Mahmood Naderan, 04/19/2008
- Re: [cgal-discuss] drawing a conic arc using Qt_widget, Ashwin Nanjappa, 04/21/2008