[1606] | 1 | #include "broken_edge.h" |
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[1632] | 2 | #include <cmath> |
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[1497] | 3 | |
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[1501] | 4 | BrokenEdge::BrokenEdge(Gnome::Canvas::Group & g, Gnome::Canvas::Points p, GraphDisplayerCanvas & gc) : Line(g), gdc(gc), isbutton(false) |
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[1497] | 5 | { |
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[1499] | 6 | my_points=new Gnome::Art::Point[3]; |
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| 7 | |
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| 8 | arrow=new Gnome::Canvas::Polygon(g); |
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| 9 | *arrow << Gnome::Canvas::Properties::fill_color("red"); |
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[1524] | 10 | arrow->signal_event().connect(sigc::mem_fun(*this, &BrokenEdge::edgeFormerEventHandler)); |
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| 11 | setPoints(p); |
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[1499] | 12 | } |
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| 13 | |
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| 14 | BrokenEdge::~BrokenEdge() |
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| 15 | { |
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| 16 | if(arrow)delete(arrow); |
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| 17 | } |
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| 18 | |
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[1524] | 19 | void BrokenEdge::setPoints(Gnome::Canvas::Points p, bool move) |
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[1499] | 20 | { |
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| 21 | bool set_arrow=false; |
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[1601] | 22 | //red arrow losts its position-right button |
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[1500] | 23 | if(!move) |
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[1497] | 24 | { |
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[1500] | 25 | if(p.size()==2) |
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| 26 | { |
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| 27 | set_arrow=true; |
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| 28 | Gnome::Canvas::Points points_with_center; |
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| 29 | points_with_center.push_back(my_points[0]=p[0]); |
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| 30 | points_with_center.push_back(my_points[1]=Gnome::Art::Point( (p[0].get_x()+p[1].get_x())/2+0 , (p[0].get_y()+p[1].get_y())/2 )+0 ); |
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| 31 | points_with_center.push_back(my_points[2]=p[1]); |
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| 32 | property_points().set_value(points_with_center); |
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| 33 | } |
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| 34 | if(p.size()==3) |
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| 35 | { |
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| 36 | set_arrow=true; |
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| 37 | property_points().set_value(p); |
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| 38 | for(int i=0;i<3;i++) |
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| 39 | { |
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| 40 | my_points[i]=p[i]; |
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| 41 | } |
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| 42 | } |
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| 43 | } |
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| 44 | else |
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[1499] | 45 | { |
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[1601] | 46 | //arrow keeps its position-left button |
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| 47 | |
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[1602] | 48 | if(p.size()==2) |
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| 49 | { |
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| 50 | Gnome::Canvas::Points points; |
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| 51 | my_points[0]=p[0]; |
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| 52 | my_points[2]=p[1]; |
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| 53 | for(int i=0;i<3;i++) |
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| 54 | { |
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| 55 | points.push_back(my_points[i]); |
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| 56 | } |
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| 57 | property_points().set_value(points); |
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| 58 | } |
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| 59 | set_arrow=true; |
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[1601] | 60 | |
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| 61 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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| 62 | /////////// kepps shape-with angles |
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| 63 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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| 64 | |
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| 65 | |
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| 66 | // //old vector from one to the other node |
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| 67 | // xy<double> o_p2p(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y()); |
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| 68 | // //projection of the old vector to positive x axis |
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| 69 | // xy<double> o_x_p2p(fabs(o_p2p.x),0); |
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| 70 | // //length of p2p vector |
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| 71 | // double o_l_p2p=sqrt( o_p2p.normSquare() ); |
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| 72 | // if(o_p2p.x<0) |
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| 73 | // { |
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| 74 | // o_l_p2p*=-1; |
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| 75 | // } |
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| 76 | // //length of projection of p2p vector |
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| 77 | // double o_l_x_p2p=sqrt( o_x_p2p.normSquare() ); |
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| 78 | // //old angle of p2p vector to the x axis |
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| 79 | // double o_a_p2p=acos(o_l_x_p2p/o_l_p2p); |
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| 80 | // if(o_p2p.y>0) |
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| 81 | // { |
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| 82 | // o_a_p2p=2*M_PI-o_a_p2p; |
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| 83 | // } |
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| 84 | |
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| 85 | // //old vector from first node to the breakpoint |
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| 86 | // xy<double> o_1b((my_points[1].get_x()-my_points[0].get_x()),(my_points[1].get_y()-my_points[0].get_y())); |
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| 87 | // //projection of the old node-breakpoint vector to positive x axis |
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| 88 | // xy<double> o_x_1b(fabs(o_1b.x),0); |
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| 89 | // //length of 1b vector |
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| 90 | // double o_l_1b=sqrt( o_1b.normSquare() ); |
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| 91 | // if(o_1b.x<0) |
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| 92 | // { |
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| 93 | // o_l_1b*=-1; |
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| 94 | // } |
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| 95 | // //length of projection of 1b vector |
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| 96 | // double o_l_x_1b=sqrt( o_x_1b.normSquare() ); |
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| 97 | // //old angle of 1b vector to the x axis |
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| 98 | // double o_a_1b=acos(o_l_x_1b/o_l_1b); |
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| 99 | // if(o_1b.y>0) |
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| 100 | // { |
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| 101 | // o_a_1b=2*M_PI-o_a_1b; |
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| 102 | // } |
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| 103 | |
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| 104 | // if(p.size()==2) |
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| 105 | // { |
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| 106 | // set_arrow=true; |
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| 107 | |
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| 108 | // my_points[0]=p[0]; |
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| 109 | // my_points[2]=p[1]; |
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| 110 | |
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| 111 | // //new vector from one to the other node |
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| 112 | // xy<double> n_p2p(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y()); |
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| 113 | // //projection of the new vector to positive x axis |
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| 114 | // xy<double> n_x_p2p(fabs(n_p2p.x),0); |
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| 115 | // //length of p2p vector |
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| 116 | // double n_l_p2p=sqrt( n_p2p.normSquare() ); |
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| 117 | // if(n_p2p.x<0) |
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| 118 | // { |
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| 119 | // n_l_p2p*=-1; |
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| 120 | // } |
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| 121 | // //length of projection of p2p vector |
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| 122 | // double n_l_x_p2p=sqrt( n_x_p2p.normSquare() ); |
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| 123 | // //new angle of p2p vector to the x axis |
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| 124 | // double n_a_p2p=acos(n_l_x_p2p/n_l_p2p); |
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| 125 | // if(n_p2p.y>0) |
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| 126 | // { |
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| 127 | // n_a_p2p=2*M_PI-n_a_p2p; |
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| 128 | // } |
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| 129 | |
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| 130 | // //new angle of 1b vector to the x axis |
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| 131 | // double n_a_1b=o_a_1b+n_a_p2p-o_a_p2p; |
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| 132 | |
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| 133 | // std::cout << " p2p regi: " << o_a_p2p/M_PI*180 << " uj: " << n_a_p2p/M_PI*180-(int)n_a_p2p/M_PI*180 << std::endl; |
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| 134 | // std::cout << " 1b regi: " << o_a_1b/M_PI*180 << " uj: " << n_a_1b/M_PI*180-(int)n_a_1b/M_PI*180 << std::endl; |
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| 135 | |
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| 136 | // // std::cout << o_p2p << " " << n_p2p << std::endl; |
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| 137 | |
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| 138 | // if((n_a_1b>M_PI*3/2)||(n_a_1b<M_PI/2)) |
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| 139 | // { |
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| 140 | // std::cout << "jobb terfel" << std::endl; |
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| 141 | // my_points[1]=Gnome::Art::Point(p[0].get_x()+cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()-sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p); |
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| 142 | // } |
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| 143 | // else if((n_a_1b<M_PI*3/2)&&(n_a_1b>M_PI/2)) |
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| 144 | // { |
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| 145 | // std::cout << "bal terfel" << std::endl; |
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| 146 | // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()+sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p); |
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| 147 | // } |
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| 148 | // else |
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| 149 | // { |
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| 150 | // std::cout << "y tengely" << std::endl; |
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| 151 | // double new_y=my_points[1].get_y(); |
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| 152 | // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,new_y); |
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| 153 | // } |
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| 154 | |
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| 155 | // std::cout << "alap: " << p[0] << " eredeti hossz: " << o_l_1b << " nagy uj: " << n_l_p2p << " nagy regi: " << o_l_p2p << " a*b/c " << o_l_1b*n_l_p2p/o_l_p2p << " eredmeny: " << my_points[1] << std::endl; |
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| 156 | |
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| 157 | |
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| 158 | // // if(o_1b.x*o_1b.y>0) |
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| 159 | // // { |
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| 160 | // // if(n_p2p.x>0) |
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| 161 | // // { |
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| 162 | // // my_points[1]=Gnome::Art::Point(p[0].get_x()+cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()+sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p); |
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| 163 | // // } |
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| 164 | // // else |
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| 165 | // // { |
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| 166 | // // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()-sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p); |
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| 167 | // // } |
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| 168 | // // } |
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| 169 | // // else if(o_1b.x*o_1b.y<0) |
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| 170 | // // { |
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| 171 | // // if(n_p2p.x>0) |
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| 172 | // // { |
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| 173 | // // my_points[1]=Gnome::Art::Point(p[0].get_x()+cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()-sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p); |
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| 174 | // // } |
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| 175 | // // else |
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| 176 | // // { |
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| 177 | // // my_points[1]=Gnome::Art::Point(p[0].get_x()-cos(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p,p[0].get_y()+sin(n_a_1b)*o_l_1b*n_l_p2p/o_l_p2p); |
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| 178 | // // } |
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| 179 | // // } |
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| 180 | // // else |
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| 181 | // // { |
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| 182 | // // } |
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| 183 | |
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| 184 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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| 185 | /////////// kepps shape-with scalar multiplication |
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| 186 | ////////////////////////////////////////////////////////////////////////////////////////////////////// |
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| 187 | |
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[1602] | 188 | // if(p.size()==2) |
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| 189 | // { |
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| 190 | // //old vector from one to the other node - a |
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| 191 | // xy<double> a_v(my_points[2].get_x()-my_points[0].get_x(),my_points[2].get_y()-my_points[0].get_y()); |
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| 192 | // //new vector from one to the other node - b |
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| 193 | // xy<double> b_v(p[1].get_x()-p[0].get_x(),p[1].get_y()-p[0].get_y()); |
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[1601] | 194 | |
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[1602] | 195 | // //old vector from one node to the breakpoint - c |
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| 196 | // xy<double> c_v(my_points[1].get_x()-my_points[0].get_x(),my_points[1].get_y()-my_points[0].get_y()); |
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[1601] | 197 | |
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[1602] | 198 | // //new vector from one node to the breakpoint - d - we have to calculate this one |
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| 199 | // xy<double> d_v; |
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[1601] | 200 | |
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[1602] | 201 | // //scalar product of a and b (old and new vector from first point to the other) |
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| 202 | // double sab=a_v*b_v; |
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| 203 | // //scalar product of c and d (old and new vector from first point to breakpoint) |
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| 204 | // double scd=sab*c_v.normSquare()/a_v.normSquare(); |
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[1601] | 205 | |
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[1602] | 206 | // std::cout<<" a " << a_v<<" b " <<b_v<<" c " <<c_v<<" sab " <<sab<<" scd "<<scd<<std::endl; |
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[1601] | 207 | |
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[1602] | 208 | // double a=c_v.normSquare(); |
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| 209 | // double b=2*scd*c_v.y; |
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| 210 | // double c=scd*scd-b_v.normSquare()/a_v.normSquare()*c_v.normSquare()*c_v.x*c_v.x; |
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[1601] | 211 | |
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[1602] | 212 | // std::cout<<" a " << a<<" b " <<b<<" c " <<c<<std::endl; |
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[1601] | 213 | |
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[1602] | 214 | // d_v.y=(-b-sqrt(b*b-4*a*c))/2/a; |
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[1601] | 215 | |
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[1602] | 216 | // if(c_v.x!=0) |
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| 217 | // { |
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| 218 | // d_v.x=(scd-c_v.y*d_v.y)/c_v.x; |
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| 219 | // } |
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| 220 | // else |
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| 221 | // { |
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| 222 | // d_v.x=my_points[1].get_x(); |
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| 223 | // } |
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[1601] | 224 | |
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[1602] | 225 | // std::cout<<" d " << d_v<<std::endl; |
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[1601] | 226 | |
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[1602] | 227 | // my_points[1]=Gnome::Art::Point(d_v.x+p[0].get_x(),d_v.y+p[0].get_y()); |
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[1601] | 228 | |
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[1602] | 229 | // Gnome::Canvas::Points points; |
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| 230 | // for(int i=0;i<3;i++) |
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| 231 | // { |
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| 232 | // points.push_back(my_points[i]); |
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| 233 | // } |
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| 234 | // property_points().set_value(points); |
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| 235 | // } |
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[1499] | 236 | } |
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| 237 | if(set_arrow) |
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| 238 | { |
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| 239 | //calculating coordinates of the direction indicator arrow |
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| 240 | |
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| 241 | xy<gdouble> target( my_points[2].get_x(), my_points[2].get_y() ); |
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| 242 | xy<gdouble> center( my_points[1].get_x(), my_points[1].get_y() ); |
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| 243 | |
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| 244 | xy<gdouble> unit_vector_in_dir(target-center); |
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| 245 | // std::cout << target << " - " << center << " = " << unit_vector_in_dir << " / " <<unit_vector_in_dir.normSquare() ; |
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| 246 | unit_vector_in_dir/=sqrt( unit_vector_in_dir.normSquare() ); |
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| 247 | // std::cout << " = " << unit_vector_in_dir << std::endl; |
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| 248 | |
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| 249 | xy<gdouble> unit_norm_vector(0-unit_vector_in_dir.y, unit_vector_in_dir.x); |
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| 250 | // std::cout << unit_norm_vector << std::endl; |
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| 251 | |
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| 252 | { |
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[1504] | 253 | // /\ // top |
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| 254 | // / \ // |
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| 255 | // - - // c(enter)l(eft), ccl, ccr, cr |
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| 256 | // || // |
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| 257 | // || // b(ottom)l, br |
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[1499] | 258 | } |
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| 259 | |
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| 260 | double size=3; |
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| 261 | |
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| 262 | xy<gdouble> bl (center - unit_vector_in_dir * 3 * size + unit_norm_vector * size ); |
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| 263 | xy<gdouble> br (center - unit_vector_in_dir * 3 * size - unit_norm_vector * size ); |
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| 264 | xy<gdouble> ccl(center + unit_vector_in_dir * size + unit_norm_vector * size ); |
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| 265 | xy<gdouble> ccr(center + unit_vector_in_dir * size - unit_norm_vector * size ); |
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| 266 | xy<gdouble> cl (center + unit_vector_in_dir * size + unit_norm_vector * 2 * size ); |
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| 267 | xy<gdouble> cr (center + unit_vector_in_dir * size - unit_norm_vector * 2 * size ); |
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| 268 | xy<gdouble> top(center + unit_vector_in_dir * 3 * size); |
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| 269 | |
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| 270 | // std::cout << bl << " " << br << " " << ccl << " " << ccr << " " << cl << " " << cr << " " << top << std::endl; |
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| 271 | |
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| 272 | Gnome::Canvas::Points arrow_points; |
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| 273 | arrow_points.push_back(Gnome::Art::Point( bl.x , bl.y ) ); |
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| 274 | arrow_points.push_back(Gnome::Art::Point( br.x , br.y ) ); |
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| 275 | arrow_points.push_back(Gnome::Art::Point( ccr.x, ccr.y ) ); |
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| 276 | arrow_points.push_back(Gnome::Art::Point( cr.x , cr.y ) ); |
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| 277 | arrow_points.push_back(Gnome::Art::Point( top.x, top.y ) ); |
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| 278 | arrow_points.push_back(Gnome::Art::Point( cl.x , cl.y ) ); |
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| 279 | arrow_points.push_back(Gnome::Art::Point( ccl.x, ccl.y ) ); |
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| 280 | |
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| 281 | arrow->property_points().set_value(arrow_points); |
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[1497] | 282 | } |
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| 283 | } |
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[1499] | 284 | |
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[1524] | 285 | bool BrokenEdge::edgeFormerEventHandler(GdkEvent* e) |
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[1499] | 286 | { |
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| 287 | switch(e->type) |
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| 288 | { |
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| 289 | case GDK_BUTTON_PRESS: |
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| 290 | //we mark the location of the event to be able to calculate parameters of dragging |
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[1524] | 291 | if(gdc.getActualTool()!=CREATE_NODE) |
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[1501] | 292 | { |
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[1524] | 293 | gdc.toggleEdgeActivity(this, true); |
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[1501] | 294 | clicked_x=e->button.x; |
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| 295 | clicked_y=e->button.y; |
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| 296 | isbutton=true; |
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| 297 | } |
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[1499] | 298 | break; |
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| 299 | case GDK_BUTTON_RELEASE: |
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[1524] | 300 | if(gdc.getActualTool()!=CREATE_NODE) |
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[1505] | 301 | { |
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[1524] | 302 | gdc.toggleEdgeActivity(this, false); |
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[1505] | 303 | isbutton=false; |
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| 304 | } |
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[1499] | 305 | break; |
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| 306 | case GDK_MOTION_NOTIFY: |
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| 307 | //we only have to do sg. if the mouse button is pressed |
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| 308 | if(isbutton) |
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| 309 | { |
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| 310 | //new coordinates will be the old values, |
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| 311 | //because the item will be moved to the |
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| 312 | //new coordinate therefore the new movement |
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| 313 | //has to be calculated from here |
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| 314 | |
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| 315 | double dx=e->motion.x-clicked_x; |
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| 316 | double dy=e->motion.y-clicked_y; |
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| 317 | |
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| 318 | Gnome::Canvas::Points points_new; |
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| 319 | |
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| 320 | points_new.push_back(my_points[0]); |
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| 321 | points_new.push_back(my_points[1]=Gnome::Art::Point(my_points[1].get_x()+dx,my_points[1].get_y()+dy)); |
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| 322 | points_new.push_back(my_points[2]); |
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| 323 | |
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[1524] | 324 | setPoints(points_new); |
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| 325 | gdc.textReposition(xy<double>(my_points[1].get_x(),my_points[1].get_y())); |
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[1499] | 326 | |
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| 327 | clicked_x=e->motion.x; |
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| 328 | clicked_y=e->motion.y; |
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| 329 | |
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| 330 | } |
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| 331 | default: break; |
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| 332 | } |
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| 333 | |
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| 334 | return true; |
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| 335 | } |
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[1505] | 336 | |
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[1524] | 337 | xy<double> BrokenEdge::getArrowPos() |
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[1505] | 338 | { |
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| 339 | xy<double> ret_val(my_points[1].get_x(),my_points[1].get_y()); |
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| 340 | return ret_val; |
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| 341 | } |
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