2D頂点の配列があり、配列にアーチまたは円の形状があるかどうかを検出したいと思います。値がそれほど正確ではなく、狭い範囲が必要な場合があります。値は次のとおりです。3番目のバーティクル値の値は0のままです。
verticle: -0.014848, -13.2684, 0 angle : 0.141274
verticle: -0.0174556, -4.84519, 0 angle : 90
verticle: 0, 0, 0 angle : 90
verticle: -9.53674e-07, 14.14, 0 angle : 40.7168
verticle: -12.1101, 14.0709, 0 angle : 7.94458
verticle: -12.0996, 10.6442, 0 angle : 0.294751
verticle: -12.2305, 10.6484, 0 angle : 0.24309
verticle: -12.325, 10.6384, 0 angle : 0.349426
verticle: -12.4475, 10.6125, 0 angle : 0.392669
verticle: -12.5638, 10.564, 0 angle : 0.404935
verticle: -12.678, 10.508, 0 angle : 0.34605
verticle: -12.7579, 10.4453, 0 angle : 0.391671
verticle: -12.8315, 10.36, 0 angle : 0.390671
verticle: -12.9051, 10.2747, 0 angle : 0.438795
verticle: -12.9725, 10.1668, 0 angle : 0.455425
verticle: -13.0377, 10.0514, 0 angle : 0.300014
verticle: -13.0407, 9.94522, 0 angle : 0.388662
verticle: -13.0738, 9.83064, 0 angle : 0.338041
verticle: -13.0725, 9.70936, 0 angle : 0.254878
verticle: -13.0412, 9.59645, 0 angle : 0.257171
verticle: -13.0098, 9.48352, 0 angle : 0.259443
verticle: -12.9785, 9.37061, 0 angle : 0.158259
verticle: -12.9192, 9.27357, 0 angle : 0.0713262
verticle: -12.8297, 9.18489, 0 angle : 0.14537
verticle: -12.7724, 9.09539, 0 angle : 0.0484566
verticle: -12.657, 9.03012, 0 angle : 0.0197823
verticle: -12.5738, 8.96403, 0 angle : 0.125115
verticle: -12.4667, 8.92887, 0 angle : 0.219397
verticle: -12.3296, 8.90207, 0 angle : 0.185575
verticle: -12.2288, 8.88951, 0 angle : 0.299361
verticle: -12.1, 8.89282, 0 angle : 11.3066
verticle: -12.1075, 5.64764, 0 angle : 0.158259
verticle: -12.2062, 5.65268, 0 angle : 0.266879
verticle: -12.3329, 5.64184, 0 angle : 0.312787
verticle: -12.4554, 5.61594, 0 angle : 0.384104
verticle: -12.5717, 5.56746, 0 angle : 0.322034
verticle: -12.6557, 5.5198, 0 angle : 0.45024
verticle: -12.7657, 5.44874, 0 angle : 0.416371
verticle: -12.8415, 5.37097, 0 angle : 0.464781
verticle: -12.913, 5.27815, 0 angle : 0.514343
verticle: -12.9803, 5.17027, 0 angle : 0.436111
verticle: -13.0176, 5.07075, 0 angle : 0.487788
verticle: -13.0506, 4.95617, 0 angle : 0.439686
verticle: -13.0515, 4.84242, 0 angle : 0.441462
verticle: -13.0524, 4.72867, 0 angle : 0.470222
verticle: -13.0511, 4.6074, 0 angle : 0.399585
verticle: -13.0198, 4.49448, 0 angle : 0.402998
verticle: -12.9885, 4.38156, 0 angle : 0.305828
verticle: -12.9291, 4.28452, 0 angle : 0.237388
verticle: -12.8396, 4.19585, 0 angle : 0.213062
verticle: -12.7523, 4.1147, 0 angle : 0.188712
verticle: -12.667, 4.04107, 0 angle : 0.0625573
verticle: -12.5557, 3.99086, 0 angle : 0.0279765
verticle: -12.4466, 3.94818, 0 angle : 0.0197823
verticle: -12.3416, 3.92056, 0 angle : 0.158259
verticle: -12.2107, 3.91634, 0 angle : 0.111906
verticle: -12.1121, 3.9113, 0 angle : 17.8633
verticle: -12.0988, 0.00704384, 0 angle : 15.2939
verticle: -12.0895, -3.29836, 0 angle : 0.174713
verticle: -12.2204, -3.29415, 0 angle : 0.100871
verticle: -12.3471, -3.30499, 0 angle : 0.034264
verticle: -12.4395, -3.32253, 0 angle : 0.0395647
verticle: -12.5579, -3.36349, 0 angle : 0.139882
verticle: -12.67, -3.42703, 0 angle : 0.170174
verticle: -12.7499, -3.48974, 0 angle : 0.236563
verticle: -12.8557, -3.57586, 0 angle : 0.266144
verticle: -12.9293, -3.66115, 0 angle : 0.363156
verticle: -12.9666, -3.76067, 0 angle : 0.357727
verticle: -13.0339, -3.86855, 0 angle : 0.421973
verticle: -13.067, -3.98313, 0 angle : 0.454565
verticle: -13.0678, -4.09688, 0 angle : 0.452407
verticle: -13.0687, -4.21063, 0 angle : 0.482545
verticle: -13.0675, -4.3319, 0 angle : 0.487788
verticle: -13.0361, -4.44482, 0 angle : 0.463094
verticle: -12.9768, -4.54186, 0 angle : 0.421973
verticle: -12.9496, -4.63972, 0 angle : 0.44279
verticle: -12.8622, -4.72087, 0 angle : 0.402026
verticle: -12.8071, -4.80285, 0 angle : 0.383084
verticle: -12.7239, -4.86895, 0 angle : 0.399585
verticle: -12.6105, -4.92668, 0 angle : 0.29074
verticle: -12.5336, -4.97019, 0 angle : 0.30901
verticle: -12.4266, -5.00535, 0 angle : 0.245493
verticle: -12.3237, -5.02544, 0 angle : 0.214891
verticle: -12.2229, -5.03801, 0 angle : 0.132704
verticle: -12.0983, -5.01964, 0 angle : 11.875
verticle: -12.0995, -8.28741, 0 angle : 0.300014
verticle: -12.2304, -8.28319, 0 angle : 0.199792
verticle: -12.327, -8.28568, 0 angle : 0.179137
verticle: -12.4495, -8.31158, 0 angle : 0.121947
verticle: -12.5679, -8.35253, 0 angle : 0.0395647
verticle: -12.6799, -8.41607, 0 angle : 0.0279765
verticle: -12.7598, -8.47878, 0 angle : 0.0442347
verticle: -12.8657, -8.56491, 0 angle : 0.138476
verticle: -12.9372, -8.65773, 0 angle : 0.199792
verticle: -12.9765, -8.74972, 0 angle : 0.214891
verticle: -13.0418, -8.86513, 0 angle : 0.275536
verticle: -13.0749, -8.9797, 0 angle : 0.335718
verticle: -13.0757, -9.09345, 0 angle : 0.359365
verticle: -13.0745, -9.21473, 0 angle : 0.356083
verticle: -13.0733, -9.33601, 0 angle : 0.39217
verticle: -13.0419, -9.44893, 0 angle : 0.428872
verticle: -12.9805, -9.55349, 0 angle : 0.402512
verticle: -12.9211, -9.65052, 0 angle : 0.401538
verticle: -12.8618, -9.74756, 0 angle : 0.417778
verticle: -12.7744, -9.82871, 0 angle : 0.436559
verticle: -12.659, -9.89397, 0 angle : 0.370094
verticle: -12.5758, -9.96007, 0 angle : 0.338041
verticle: -12.4687, -9.99522, 0 angle : 0.384613
verticle: -12.3316, -10.022, 0 angle : 0.265408
verticle: -12.2308, -10.0346, 0 angle : 0.261696
verticle: -12.1041, -10.0237, 0 angle : 7.8231
verticle: -12.1023, -13.1853, 0 angle : 42.4836
この問題を解決すると私が考えた唯一の方法は、特定の値よりも大きい角度と組み合わせた距離計算です。私はそれが悪い解決策であることを知っています。しかし、これを計算する他の方法は考えられません。
角度の計算は次のようになります。
inline float ofVec3f::angle( const ofVec3f& vec ) const {
ofVec3f n1 = this->normalized();
ofVec3f n2 = vec.normalized();
return (float)(acos( n1.dot(n2) )*RAD_TO_DEG);
}
2点間の距離：
inline float ofVec3f::distance( const ofVec3f& pnt) const {
float vx = x-pnt.x;
float vy = y-pnt.y;
float vz = z-pnt.z;
return (float)sqrt(vx*vx + vy*vy + vz*vz);
}
私はこれを実現するためにOpenFrameworksライブラリを使用しました：
float dist = buildings[x].polygon[z].distance(buildings[x].polygon[z+1]);
float angle ;
if ( z < buildings[x].polygon.size()-1){
angle = buildings[x].polygon[z].angle(buildings[x].polygon[z+1]);
}
if ( ( dist > 0.100)&& ( dist < 0.150)) {
//Is part of ellipse
}
これがライブラリのgithubです
https://github.com/openframeworks/openFrameworks/blob/master/libs/openFrameworks/math/ofVec3f.h
これがポイントとラインの2つのスクリーンショットです
これが頂点x、yx、yの1つのベクトル配列です
-0.11878395,-106.14753 -0.13964462,-38.761494 0.0,0.0 -7.6293945E-6,113.11968 -96.88052,112.56717 -96.79668,85.153725 -97.843834,85.18742 -98.599945,85.107315 -99.58024,84.900116 -100.51039,84.51225 -101.42383,84.06417 -102.06295,83.562485 -102.65193,82.88013 -103.240906,82.197784 -103.77975,81.33476 -104.30187,80.41151 -104.325485,79.56175 -104.59001,78.64513 -104.5802,77.67491 -104.32949,76.77156 -104.07879,75.868195 -103.82809,74.96484 -103.35321,74.18856 -102.63742,73.47914 -102.17926,72.763084 -101.25601,72.24097 -100.59037,71.71221 -99.73398,71.43098 -98.63669,71.2166 -97.83043,71.11605 -96.8,71.14256 -96.859665,45.18112 -97.6492,45.22146 -98.66293,45.134716 -99.64322,44.92752 -100.57338,44.539658 -101.245926,44.158424 -102.12593,43.58989 -102.73163,42.96776 -103.303894,42.22518 -103.84273,41.36216 -104.14067,40.56599 -104.40518,39.649376 -104.412094,38.739384 -104.41901,37.8294 -104.409195,36.859184 -104.15849,35.955826 -103.90778,35.052475 -103.43291,34.27619 -102.71712,33.566765 -102.01806,32.917564 -101.33571,32.328587 -100.445885,31.92691 -99.57278,31.585457 -98.73309,31.364452 -97.68595,31.330748 -96.89641,31.290417 -96.790054,0.056350708 -96.71601,-26.386883 -97.76316,-26.353178 -98.77688,-26.439924 -99.51628,-26.580261 -100.46315,-26.907902 -101.35987,-27.416212 -101.99899,-27.917892 -102.84558,-28.606876 -103.434555,-29.289228 -103.732506,-30.0854 -104.27134,-30.948421 -104.53585,-31.86504 -104.542755,-32.77503 -104.54967,-33.685017 -104.53986,-34.655228 -104.28916,-35.558586 -103.81427,-36.33486 -103.59699,-37.117775 -102.897934,-37.766975 -102.456474,-38.422806 -101.79083,-38.95156 -100.8843,-39.41346 -100.2688,-39.761543 -99.41241,-40.04277 -98.58944,-40.203552 -97.78319,-40.30411 -96.78618,-40.157143 -96.79571,-66.299255 -97.84286,-66.26555 -98.615685,-66.285446 -99.59598,-66.49263 -100.54285,-66.820274 -101.439575,-67.32858 -102.07869,-67.83027 -102.92528,-68.51925 -103.497536,-69.261826 -103.8122,-69.99777 -104.33433,-70.92102 -104.59884,-71.83764 -104.60574,-72.74762 -104.59593,-73.717834 -104.58613,-74.68805 -104.33543,-75.5914 -103.84383,-76.42791 -103.36895,-77.204185 -102.89406,-77.98047 -102.195,-78.62967 -101.27175,-79.151794 -100.6061,-79.68055 -99.74972,-79.96178 -98.65242,-80.17615 -97.84617,-80.27671 -96.83245,-80.189964 -96.81836,-105.482315 -0.11878395,-106.14753
その他のベクトル配列
0.0,46.766045 -5.8214893,46.69686 -5.820862,47.05351 -5.8475914,47.425262 -5.918213,47.749863 -6.0161915,48.08957 -6.1278477,48.43683 -6.283396,48.73693 -6.4526215,49.04459 -6.6794205,49.312645 -6.89254,49.573143 -7.1330166,49.848755 -7.4037094,50.069653 -7.6744003,50.290554 -7.988985,50.4643 -8.32011,50.57577 -8.621017,50.74196 -8.982357,50.79873 -9.330019,50.847942 -9.677681,50.897156 -10.011665,50.938812 -35.375645,50.81018 -64.38959,50.69822 -64.377785,49.620728 -64.35231,48.535683 -64.299484,47.435524 -64.20275,46.382523 -64.064995,45.30686 -63.91356,44.223648 -63.748447,43.132874 -63.525764,42.081707 -63.2894,41.022987 -63.025684,39.949158 -62.71807,38.922485 -62.38311,37.880703 -62.004246,36.886078 -61.611713,35.883904 -61.191822,34.86661 -60.758247,33.841774 -60.280785,32.86409 -59.759426,31.933561 -59.224392,30.995481 -58.67568,30.049845 -58.08307,29.151367 -57.476788,28.245333 -56.856827,27.331745 -56.162758,26.520025 -55.48522,25.646042 -54.777473,24.826767 -54.02583,24.05465 -53.304405,23.227821 -52.508865,22.502861 -51.69965,21.770344 -50.890438,21.037828 -50.051006,20.360025 -49.1979,19.674667 -48.314575,19.044018 -47.401035,18.468079 -46.504032,17.829878 -45.560276,17.30865 -44.602844,16.77987 -43.65909,16.258642 -42.671436,15.784572 -41.697464,15.318055 -40.693275,14.906249 -39.689087,14.494442 -38.654682,14.137346 -37.633957,13.787806 -36.58301,13.492973 -35.545746,13.205697 -34.478268,12.973131 -33.42446,12.748117 -32.340443,12.577815 -31.270102,12.415068 -30.18322,12.314583 -29.09634,12.2141 -28.006598,12.183435 -26.916859,12.152769 -25.840796,12.129659 -25.80352,9.967116 -25.811121,8.75754 -25.813,7.687599 -25.713875,0.20740414 -25.278425,0.25250435 -12.768033,0.054601192 -0.25477973,-0.073483296 0.0,0.0 0.0,46.766045
