C# でテスト用３次元点群データを作成する
こんにちは。
仕事の自動化にやりがいと達成感を感じるガッくんです。
この記事の目次
背景・目的
関数を単体でテストする時に、サンプルはあるんだけど開発の初期段階に不必要なほどに大規模過ぎたり、手軽に動作確認出来ない状況でした。
手頃なサイズのテスト用の点群データが欲しかったので、乱数を使って自分で用意することにしました。
動作環境
・Windows 7
・Visual Studio 2017
プログラム
C# でコンソールアプリケーションから３次元点群データを作ることにしました。
ソースコード
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace TestNodeDataMaker
{
class Program
{
static void Main(string[] args)
{
// 出力ファイル名設定
string strFileName = "Test-Nodes-Data.txt";
// ノード作成点数設定
int Num = 500;
// ノード座標作成用乱数
Random r = new Random();
int limitLowerX = -500; int limitUpperX = 500;
int limitLowerY = -200; int limitUpperY = 380;
int limitLowerZ = -100; int limitUpperZ = 100;
// ノード座標格納用変数
double X; double Y; double Z;
// ノードデータ格納用変数
string data = "";
// 進捗用
float n;
for (int i = 1; i < Num + 1; i++)
{
// 座標データの作成
X = r.Next(limitLowerX, limitUpperX) * r.NextDouble();
Y = r.Next(limitLowerY, limitUpperY) * r.NextDouble();
Z = r.Next(limitLowerZ, limitUpperZ) * r.NextDouble();
// ノードデータ生成
data += string.Format("{0,8}", i) + ",";
data += string.Format("{0,25}", X) + ",";
data += string.Format("{0,25}", Y) + ",";
data += string.Format("{0,25}", Z);
data += Environment.NewLine;
// 進捗表示
n = (float)i / (float)Num * 100;
Console.WriteLine("進捗： {0} ％", n);
}
// デスクトップパス取得
string desktopPath = System.Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
// デスクトップにファイル出力
File.WriteAllText(desktopPath + "\\" + strFileName, data);
Console.WriteLine("終了するには何かキーを押してください");
Console.ReadKey();
}
}
}
結果
プログラムを動作させると図1 の様な画面があらわれます。
出力された３次元点群データのテキストは図2 の様になります。
1, 6.3419938172875, 32.3797981638367, 30.2311103065643
2, 65.3217181774423, -24.1840215437971, -59.7495026326503
3, 133.303746833142, 153.961790378653, -15.0303173880234
4, -165.354889512227, -157.992553269021, -10.2588013579411
5, -165.324958051241, 6.73502210096224, 28.8967961803529
6, 70.8150947209518, 3.87346041382917, -1.02425204730791
7, -247.969437494394, -158.615209471721, -65.7111761149537
8, -273.171083640853, -34.7948258476308, 18.5856005337954
9, 413.639641303401, 78.6291895064661, 77.9080133037213
10, 321.776127606526, 74.6001970277169, -13.7713193072804
11, -98.3101255829959, 105.284636926504, -0.321951792725339
12, -294.764162543586, 66.9673876850714, 27.9224270265188
13, -14.0366258211604, -4.17781448186273, 19.425438293454
14, -200.028653564876, 284.383265075452, -6.95180639110124
15, 6.26787774370419, -104.621650874904, -49.8994326800571
16, 190.686348534043, 83.0590186706088, 13.1859776401827
17, -100.734863492071, 34.4978201782786, 23.1548094000457
18, 148.056873064515, -52.5473776099027, 6.69026045440243
19, -10.9465185464111, -16.4920338366609, -22.70314659211
20, -95.5632537377827, 25.8589797405801, 11.0018485835762
21, 82.2883799831794, 46.1520711580068, -11.669955024342
22, -91.4098852152982, 83.6798656306601, 22.2636931139341
23, -357.578080959422, 12.7621054969552, -19.6622081565029
24, 60.1613564194, 23.4275280607061, -5.57761998175533
25, 5.61259095958089, 16.8930173050114, 6.54400835118443
26, -267.275660079101, 37.5950771186478, -7.80450549992011
27, -183.079307418819, -4.2589268275811, -1.29120744033307
28, -157.735602482099, 241.30158039243, -42.7793646337368
29, 73.2819660530807, -7.9249531961628, 18.5657552646314
30, 88.0711913938034, 81.7476144618111, 33.5162309391965
31, 39.9376362831973, 95.6743854301397, 2.93921116736681
32, 161.38977017784, -2.82450883594552, 63.8642416605094
33, -298.021263246434, 117.556948885581, -65.3192460054156
34, 50.7092538288372, 68.0359133929181, -40.9445107131938
35, -26.4323570748942, -101.755449050924, 46.7479159667845
36, 89.5660319209872, 122.22089270792, 25.6809449706604
37, -300.831166354395, -65.647461558528, -42.9804614474906
38, -126.660514549194, -17.9701973516355, -89.7130199348149
39, 98.1656872006905, 12.9794744090082, 3.72425763342728
40, -139.66510077364, 10.7054486333884, -22.8295927410152
41, -9.4116474918144, 127.439024580381, 6.13867892610779
42, 255.408656640169, 339.344042249184, -2.7215962646164
43, 2.81490457235598, 94.8636378137691, 5.42626769068943
44, -200.641937854533, -24.516528952176, 34.6722081465052
45, -77.1691441662466, -106.399924418144, -56.039353760909
46, 21.0030906996704, 123.406785375628, 1.39782863920453
47, 176.782639334808, 34.9095082180153, -4.0461332965857
48, 16.8738579400228, 174.517812856714, 18.9749236530508
49, 24.4490881052097, -52.543481678955, -35.1524266559409
50, 17.7515041379964, -23.6562858399266, -19.2276173360774
51, -129.411712371005, 1.95745239497975, -12.5889378835396
52, -109.683135451601, 2.57952889733926, -43.4591697656825
53, 5.10268943668468, -62.1863377518888, -56.8034968566166
54, 49.5913810457994, 86.2068079813415, -60.4896832632318
55, 74.7558696636725, 106.903269979592, -49.9459976996044
56, 175.889088328876, 89.2549326304602, -14.4146394205348
57, -303.333589095778, 96.3268202507528, -61.5039032266959
58, -8.81101162583149, -51.3552995353729, -20.371362183416
59, 0.769677474521882, 106.286783966369, 10.9689298397717
60, -81.5934141262404, -59.4882528425605, 5.50954979914685
61, 166.772447653009, 163.250747143408, 6.15399366531241
62, -109.240760470387, 318.371378323702, -8.22261119504581
63, -15.0156844281665, 25.4604880583754, 68.9795114654021
64, 20.8262361217412, 48.0703781904049, -1.48183199087243
65, 170.216010450486, 90.0770764490948, -26.7864745607537
66, -276.698163275466, -28.3542746144134, 11.4408767649163
67, -353.344866215878, 55.8952323840443, -24.6672371442743
68, -115.0395544409, 85.1865126142216, -29.1427724860342
69, -4.94535075963724, 59.2193242028446, 33.7554558356085
70, -273.329166338467, 223.286810435023, 4.16176491610788
71, -337.301490913751, -55.0428533307476, 70.5661194653093
72, -71.0852696807521, 3.61790055205016, -10.2547001062216
73, -28.1268849773923, 227.505139106654, 81.8737271231942
74, -14.963066767884, -5.01205905015211, 67.5409211379201
75, -63.1897043842774, 151.689773578052, 76.9616559548125
76, 100.42502127887, 165.029562626513, -18.4933001308205
77, 62.1725165509491, 151.142906411152, -0.56603472892476
78, -119.553616437853, -65.3133597603596, 39.1569693513014
79, 18.7036565778328, 19.2657941390135, -31.6699393660156
80, 355.846356386247, 99.6918463644999, -7.65928387439776
81, -35.4725425194355, -32.4307089897016, -29.8217318923314
82, -216.149859641748, 61.8821159460964, -13.0029444084516
83, -196.867156269433, 16.6022419624972, 32.7018313769725
84, 70.1210873528016, -169.903297903903, -25.4836685068364
85, -123.407965996027, -33.076355584467, 12.6931990704933
86, 66.2818539069415, 67.8059765220648, 13.0988166938065
87, 289.224812059768, -59.6872237388451, 6.55229336468144
88, 106.399870024249, 130.633189056829, 48.4325176609831
89, 82.8097698887856, -37.8392569841069, 27.2337238989927
90, -88.7842459291146, 140.640141105577, -38.8751226872556
91, 8.58053577066424, -49.9553886987061, -1.1158681181799
92, 133.324035032338, 175.013630190871, -8.65878452903534
93, -17.4537289754738, -15.1217840086305, -58.1977587576014
94, 217.899434909643, 138.009871363644, 48.9656780576174
95, -131.006487182345, 2.43333691471877, -2.82333343514397
96, 30.4542316708035, 49.9430814059186, 65.4400511688739
97, 60.2053618804577, -176.763527664711, 9.14662136842805
98, 11.5612864082499, 3.61769690579628, 59.8027736841714
99, -72.4927380320117, -164.27090820124, 15.8869506408865
100, 364.829982468314, -51.5784576281805, -36.7481601348837
101, 60.401469329559, -48.5828131440016, 66.2956767055651
102, 87.7486163548886, -50.7613273955701, -28.5193500055556
103, 338.638888944704, -15.2976079225995, -68.0031008925303
104, -64.952917394672, 81.2681529118066, 11.0945063322291
105, -33.9015936059419, 30.3810116296546, 1.72013698598376
106, 47.1030224753092, 39.3768034425456, -35.5573818346287
107, -58.8981533920849, -90.1360125165135, -1.99553185980559
108, 0.0792428143691471, 10.4139543540841, 89.656913825151
109, 229.940378528526, 113.701214971813, -6.55172362763049
110, -94.927086071543, -110.016951194972, -19.8978306157039
111, -85.2055140515815, -1.19811793658795, 56.3762599762419
112, -390.487261053402, 26.4107551702348, -34.9398317327443
113, 7.98997254250104, 104.482526968924, -24.0853492655257
114, 150.695351441715, 134.306241685667, -3.67941758114817
115, -59.6929290493452, -23.0021937051798, 25.4875800136885
116, 199.127480964701, -112.916888742203, 1.98734101233414
117, 166.932021967569, -56.5766034585315, -13.6197913268673
118, -2.6838746101986, -1.05980261138631, 56.7061665964807
119, -204.460513947746, 33.8146420222775, 33.8898406875738
120, -46.9754186165405, -32.0518984925244, 32.1325278953335
121, 19.9278105958029, -156.993943170176, -22.4553218723532
122, 116.058043850147, 144.015789865523, 8.23307357180541
123, -20.418115366445, -5.55034787699131, -57.1309592328644
124, 90.995980539823, 9.76868410118329, 9.09109577401127
125, -203.75801660668, 103.866900263292, 5.56137170156528
126, -306.386467548733, 128.529560134061, -78.8460682178131
127, -221.128872070056, -9.0942346184022, -11.6523812020441
128, -219.600240892544, 29.9185861004137, -50.9470653054058
129, -166.585805413586, 73.0132072805489, -23.7850106790592
130, -42.1340550110368, 44.8467388464356, 69.0282889614013
131, -68.9870568071432, -140.701613767399, 30.9831221708949
132, -287.323579078225, -53.0724102813156, 2.55001383021009
133, -93.3723181399388, 29.9870242527626, -26.6138231063326
134, -70.2531459770413, 4.68763035335002, -40.0513188764692
135, -142.044251885751, 3.02060383000439, -12.0514604076983
136, -159.411908314755, 71.9264291762032, -6.34094333198897
137, -84.210931577818, 173.438612193073, 1.16167212331745
138, -55.1406132239572, -4.53700500937971, -62.6856164493065
139, 13.1696554893486, 150.223817809123, 44.229737252104
140, -0.320421978514838, 113.860593762184, -0.131083010756915
141, 2.94747305612428, -1.67089832651936, -54.0977297076479
142, 329.782225074611, -18.7080188317727, 1.04628123158882
143, -328.574111209518, 38.9808056917883, 12.9091258053245
144, -10.1330575394132, 72.6725299436005, 0.996067334895985
145, -233.231729377169, 48.8089929352556, 17.2936706288223
146, -339.661919749184, 257.708157448428, -50.3672869481925
147, 104.276953791397, 120.27198974894, -7.33020950077577
148, -41.4693447092871, -29.2977268971958, 0.906414802142612
149, 27.4277125370818, -3.67412485725904, 27.4306238393442
150, -2.63102705061018, 68.9778440035776, -41.3079289194699
151, 290.723141472192, 37.6706394728602, 29.8439792626742
152, -80.1500326628564, 83.5460568957711, -31.0063328067802
153, 117.352241553996, 111.19438043432, -45.7728272540368
154, -182.187096810987, -69.4066526318931, 11.2400189560093
155, 196.076326382382, -84.3303245065409, -4.63425342535332
156, -406.632022391368, -26.1649251310923, 14.4757216528411
157, -115.343949080139, -47.2255554065227, 5.65578037624051
158, -16.5697376078785, -75.6127865592077, 1.23047670872439
159, 0.590463283281058, 155.999245220329, 57.0183864305813
160, -60.4620663390784, -68.0941326744362, -7.76412701595767
161, 204.093082978899, 181.515304197797, -9.21720033242237
162, -81.4330328066987, -12.8835143004002, -48.8231472083475
163, 40.5371628042949, 231.060901459801, -22.7856738505818
164, -134.839192687925, 5.65302511940385, -24.0484962351846
165, -12.9331438303614, -103.809997619507, 30.3180282825222
166, 19.9031456368524, -0.11220114962766, 15.2888998907473
167, -61.510045298147, 346.27773636639, 12.2454309054862
168, 66.1947237263409, 285.294406651656, -17.8005267734642
169, 145.089121840936, -101.589988869424, -20.6863700177923
170, 67.8123269322386, 107.831518029716, -70.1280351095498
171, -228.526569002553, 25.187108592683, 20.7449145376426
172, 116.192909208682, -135.714768306219, -5.22765274868703
173, -25.7214500502317, 24.4457817759578, -32.0401632627659
174, -99.2656912702442, -95.9713042154775, 21.8984118531916
175, -225.404291973172, 165.030067559811, -14.6145380421609
176, -148.056063919354, 200.392832477294, 51.732386644805
177, -231.743066871419, 48.616718366098, -42.7110679842118
178, -273.838818480186, -141.804210506754, -33.4066317982071
179, 225.66047766882, 70.7855476130664, -22.4651413655212
180, 161.624014940869, -155.410151730483, 35.5375095622323
181, 249.886869747139, -29.570804513791, 4.4545766927556
182, 78.7277583464644, 69.1003489122262, 20.4527762031428
183, -261.65858826491, 21.083342597393, 0
184, 14.265770207283, 125.444232661484, -71.7910734916996
185, -71.1274878266861, 12.8747228118008, -23.8274322263093
186, 118.383299454294, -84.3623801015142, 8.8537266155955
187, -11.5332850811692, 19.9583553932413, -75.3558973704259
188, -120.866488395662, 5.48051979368577, 15.0419714912036
189, -136.817112803374, 110.071881324552, -6.59783464418623
190, -149.513761871268, 99.4329690232095, 10.2627671837168
191, -191.150529284566, -6.26767097519136, 14.0303812842026
192, -87.7315318667011, -4.16190190341412, 52.9181920229076
193, -33.452184614936, 52.4152214417305, 49.2541748374953
194, 105.409038448897, 20.0450416468294, -74.7166718145444
195, -72.3199838811159, -169.660893868963, -28.1500982298283
196, 5.14727963839997, -57.8981891050461, -28.2055017949108
197, 15.009408809249, 90.8829155987515, 4.40228846781062
198, -15.5550528688147, 6.86027296206927, -16.6779986339053
199, 129.220956226448, 28.210468607587, 5.52483696794363
200, -5.50573877315304, 49.1945833671813, 13.0844709407932
201, -71.2325198115932, -30.4061860476649, 5.32725952161814
202, 6.79944859342624, 322.56500394203, -52.1401775079501
203, -109.589510371717, 103.309955475531, 86.0638607656881
204, -89.6084051698485, 81.5581909970186, -45.396253348047
205, 152.562652368361, 50.6641151614786, 15.266574046233
206, -492.076486992685, -88.629489763933, -13.5667788402954
207, 277.146957885077, 47.1562461476569, 3.70328634777259
208, -198.547404042234, -0.0498237731167226, 27.0231221742104
209, 372.080962843765, -73.045542383122, -72.8000684007071
210, 77.6821136370684, -35.5362733875105, 1.49657744983983
211, -14.7221060659374, -131.123209293523, 21.1156433746757
212, 296.940074627725, -71.0489291060012, 9.87426391331212
213, -32.1344919978336, -90.1197067117876, 9.83614305538877
214, -67.663161666907, 22.5775660167344, -1.51273118123074
215, -204.288872733381, 17.982416262842, 43.0029359995401
216, -196.036051725986, -74.6646230493973, -58.2876414890809
217, -246.890206703399, 28.5784749186498, -30.3119915650748
218, -145.234465912559, -128.398525508306, -17.6829909056812
219, 87.1645146353005, 233.45214040645, -73.5307399428127
220, 4.23966370161607, 155.888235963829, 16.5418095358376
221, -124.607668194271, 78.3975544750679, -8.56655585000597
222, -3.13625950745133, 43.7668450659918, -0.973367721295621
223, 32.2397234031184, 34.8991615278177, -83.5490602881411
224, -94.3852865851416, 25.6150177082117, -43.5361242823005
225, 103.386966248689, 3.07728065600492, 6.88626466267103
226, -29.1126639531519, 95.8540932400404, 7.30200210553687
227, -21.8004802706654, -50.34765162242, 1.89897072822739
228, -49.7659938194631, 166.544984310188, -47.6564187033365
229, -178.484001128694, -137.351016466204, 33.2976071184024
230, -302.787106476159, 70.7455030417747, -2.96258765783281
231, 386.474211865326, -87.3222065662603, 35.9272459623996
232, -49.0446501136965, 78.3785607816552, 0.980282672206071
233, 28.9216507314339, 38.641499537342, -19.6705212931477
234, 61.3564972911759, -100.921267219317, -31.7451410962945
235, -186.3865533119, -21.8319969991371, -2.21705176505123
236, -24.745559606117, 24.6904143005099, 58.4431794557921
237, 326.559394677896, 89.4562442290859, -13.9794122888611
238, -156.60156535199, 3.21829270255672, -42.7898417677683
239, 307.116388761027, 24.3984051348634, -2.20847905204095
240, -134.596444666198, 168.000150281936, 15.0249495566939
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コメント
乱数で簡単に作ったので立方体内にまばらに点が配置されました。
少し追加すれば、偏りなどを意図的に入れたり、好きな形の中に点を配置したりする事も出来そうです。
ニーズがありそうならやろうかなと思います。
以上
