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colormaps.c
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@ -1559,6 +1559,520 @@ float parula_srgb_floats[256][3] = {
{ 0.9763, 0.9831, 0.0538 }
};
float twilight_srgb_floats[511][3] = {
{ 0.95588623, 0.91961077, 0.95812116},
{ 0.94967876, 0.91615763, 0.95315546},
{ 0.94353853, 0.91268927, 0.94824212},
{ 0.9374452 , 0.90921449, 0.94337733},
{ 0.93140447, 0.90573033, 0.93856712},
{ 0.92542215, 0.90223373, 0.93381777},
{ 0.91947392, 0.89873478, 0.92912752},
{ 0.91357865, 0.89522463, 0.92450721},
{ 0.90772105, 0.89170929, 0.91995838},
{ 0.90189106, 0.88819234, 0.91548457},
{ 0.8960938 , 0.8846711 , 0.91109116},
{ 0.89031153, 0.88115247, 0.90677917},
{ 0.88453669, 0.87763908, 0.90255063},
{ 0.87877004, 0.87413042, 0.89840629},
{ 0.87299914, 0.87063131, 0.89434535},
{ 0.86721094, 0.86714674, 0.89036725},
{ 0.86141058, 0.86367475, 0.88646923},
{ 0.85559299, 0.86021735, 0.88264858},
{ 0.84974682, 0.85677881, 0.87890418},
{ 0.84387192, 0.85335917, 0.87523342},
{ 0.83797164, 0.84995717, 0.87163289},
{ 0.83204469, 0.84657319, 0.86810058},
{ 0.82609045, 0.84320733, 0.86463493},
{ 0.82010052, 0.83986227, 0.86123767},
{ 0.81408416, 0.83653448, 0.85790541},
{ 0.80804251, 0.83322322, 0.85463767},
{ 0.80197661, 0.82992779, 0.85143441},
{ 0.79588772, 0.82664733, 0.84829592},
{ 0.78977733, 0.82338091, 0.8452227},
{ 0.78364717, 0.82012747, 0.84221541},
{ 0.7774989 , 0.81688599, 0.83927495},
{ 0.77133274, 0.81365586, 0.83640309},
{ 0.76515383, 0.81043494, 0.83359933},
{ 0.75896452, 0.80722199, 0.83086447},
{ 0.75276734, 0.80401573, 0.82819926},
{ 0.74656497, 0.80081486, 0.82560433},
{ 0.74036019, 0.79761806, 0.82308018},
{ 0.73415594, 0.79442399, 0.82062712},
{ 0.72795524, 0.79123135, 0.81824533},
{ 0.7217612 , 0.78803884, 0.81593475},
{ 0.71557653, 0.78484528, 0.81369544},
{ 0.70940398, 0.78164957, 0.81152729},
{ 0.70324772, 0.77845022, 0.80942895},
{ 0.69711099, 0.77524608, 0.8073995},
{ 0.69099696, 0.77203607, 0.8054378},
{ 0.68490872, 0.76881916, 0.80354253},
{ 0.67884928, 0.76559441, 0.80171222},
{ 0.67282151, 0.76236096, 0.79994524},
{ 0.66682814, 0.75911802, 0.79823983},
{ 0.66087179, 0.7558649 , 0.79659413},
{ 0.65495439, 0.75260107, 0.7950067},
{ 0.64907877, 0.74932586, 0.79347499},
{ 0.64324724, 0.74603878, 0.79199677},
{ 0.63746171, 0.74273942, 0.79056997},
{ 0.63172396, 0.73942747, 0.7891925},
{ 0.62603562, 0.73610266, 0.78786229},
{ 0.62039814, 0.73276477, 0.78657732},
{ 0.61481293, 0.72941363, 0.78533547},
{ 0.60928127, 0.72604912, 0.7841347},
{ 0.60380419, 0.72267116, 0.78297314},
{ 0.59838267, 0.71927971, 0.78184895},
{ 0.59301756, 0.71587476, 0.78076036},
{ 0.58770967, 0.7124563 , 0.77970565},
{ 0.5824597 , 0.70902436, 0.77868317},
{ 0.57726849, 0.70557897, 0.77769104},
{ 0.5721366 , 0.70212016, 0.77672775},
{ 0.56706445, 0.69864803, 0.7757921},
{ 0.56205254, 0.69516262, 0.77488269},
{ 0.55710135, 0.69166401, 0.7739982},
{ 0.55221135, 0.68815225, 0.77313735},
{ 0.54738299, 0.68462741, 0.77229891},
{ 0.54261669, 0.68108954, 0.7714817},
{ 0.53791302, 0.6775387 , 0.77068427},
{ 0.53327235, 0.67397494, 0.76990557},
{ 0.52869499, 0.67039831, 0.76914482},
{ 0.52418136, 0.66680884, 0.76840101},
{ 0.51973187, 0.66320657, 0.76767313},
{ 0.51534697, 0.65959152, 0.76696023},
{ 0.51102708, 0.6559637 , 0.76626135},
{ 0.50677264, 0.65232312, 0.76557558},
{ 0.50258409, 0.64866978, 0.76490201},
{ 0.49846187, 0.64500368, 0.76423976},
{ 0.49440652, 0.64132483, 0.7635876},
{ 0.49041839, 0.63763319, 0.76294498},
{ 0.48649792, 0.63392874, 0.76231111},
{ 0.48264558, 0.63021144, 0.76168515},
{ 0.4788618 , 0.62648125, 0.76106626},
{ 0.47514703, 0.62273814, 0.76045361},
{ 0.4715017 , 0.61898207, 0.75984637},
{ 0.46792623, 0.61521297, 0.75924371},
{ 0.46442103, 0.6114308 , 0.75864479},
{ 0.4609865 , 0.6076355 , 0.7580488},
{ 0.45762301, 0.60382702, 0.7574549},
{ 0.45433091, 0.60000529, 0.75686228},
{ 0.45111051, 0.59617026, 0.75626997},
{ 0.44796212, 0.59232188, 0.75567717},
{ 0.44488599, 0.58846006, 0.75508316},
{ 0.44188237, 0.58458473, 0.7544871},
{ 0.43895145, 0.58069584, 0.75388814},
{ 0.43609336, 0.5767933 , 0.75328544},
{ 0.43330824, 0.57287707, 0.75267815},
{ 0.43059613, 0.56894708, 0.75206541},
{ 0.42795705, 0.56500326, 0.75144639},
{ 0.42539095, 0.56104556, 0.75082021},
{ 0.42289775, 0.55707392, 0.75018601},
{ 0.42047728, 0.55308828, 0.74954294},
{ 0.41812934, 0.54908859, 0.74889012},
{ 0.41585365, 0.54507481, 0.7482267},
{ 0.41364987, 0.54104688, 0.7475518},
{ 0.41151761, 0.53700476, 0.74686455},
{ 0.40945636, 0.53294843, 0.74616402},
{ 0.40746562, 0.52887785, 0.74544937},
{ 0.40554478, 0.52479298, 0.74471976},
{ 0.4036932 , 0.52069379, 0.74397434},
{ 0.40191012, 0.51658025, 0.74321222},
{ 0.40019476, 0.51245234, 0.74243254},
{ 0.39854625, 0.50831006, 0.74163443},
{ 0.39696364, 0.50415338, 0.74081703},
{ 0.39544595, 0.4999823 , 0.73997947},
{ 0.39399211, 0.49579683, 0.7391209},
{ 0.39260099, 0.49159695, 0.73824046},
{ 0.39127141, 0.48738268, 0.73733729},
{ 0.39000213, 0.48315403, 0.73641054},
{ 0.38879184, 0.478911 , 0.73545936},
{ 0.3876392 , 0.47465363, 0.73448291},
{ 0.38654279, 0.47038193, 0.73348035},
{ 0.38550116, 0.46609593, 0.73245082},
{ 0.38451281, 0.46179566, 0.73139351},
{ 0.3835762 , 0.45748116, 0.73030757},
{ 0.38268975, 0.45315247, 0.72919218},
{ 0.38185182, 0.44880962, 0.7280465},
{ 0.38106076, 0.44445268, 0.72686969},
{ 0.38031486, 0.44008169, 0.72566094},
{ 0.37961245, 0.43569671, 0.72441943},
{ 0.37895177, 0.43129778, 0.72314434},
{ 0.37833106, 0.42688498, 0.72183484},
{ 0.37774855, 0.42245837, 0.72049011},
{ 0.37720243, 0.41801803, 0.71910933},
{ 0.37669089, 0.41356403, 0.71769166},
{ 0.37621211, 0.40909646, 0.71623627},
{ 0.37576424, 0.4046154 , 0.71474232},
{ 0.37534545, 0.40012094, 0.71320896},
{ 0.3749539 , 0.39561319, 0.71163536},
{ 0.37458773, 0.39109226, 0.71002064},
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{ 0.37392415, 0.38201129, 0.7066644},
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{ 0.37333991, 0.37287903, 0.70313318},
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{ 0.37282029, 0.36369664, 0.69941971},
{ 0.37258013, 0.35908705, 0.69749231},
{ 0.37235064, 0.35446544, 0.6955165},
{ 0.37212999, 0.349832 , 0.69349132},
{ 0.3719164 , 0.34518697, 0.69141574},
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{ 0.37109685, 0.32649557, 0.68258873},
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{ 0.37068312, 0.31708718, 0.67784499},
{ 0.37046904, 0.31236853, 0.67538648},
{ 0.3702478 , 0.3076408 , 0.67286859},
{ 0.37001764, 0.30290445, 0.67029004},
{ 0.3697768 , 0.29815996, 0.66764952},
{ 0.36952351, 0.29340788, 0.6649457},
{ 0.36925602, 0.28864881, 0.66217719},
{ 0.36897256, 0.28388339, 0.65934258},
{ 0.36867134, 0.27911233, 0.6564404},
{ 0.36835059, 0.27433641, 0.65346914},
{ 0.3680085 , 0.26955647, 0.65042726},
{ 0.36764328, 0.26477344, 0.64731318},
{ 0.36725311, 0.25998832, 0.64412527},
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{ 0.36639158, 0.2504157 , 0.63752117},
{ 0.36591607, 0.24563096, 0.63410149},
{ 0.36540817, 0.24084915, 0.63060103},
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{ 0.36428747, 0.2313007 , 0.62335047},
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{ 0.36301372, 0.22178452, 0.61575461},
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{ 0.35905442, 0.19825076, 0.59515371},
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{ 0.35711536, 0.18899812, 0.5862297},
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{ 0.61770261, 0.22899913, 0.31129746},
{ 0.62121505, 0.23286692, 0.3112594},
{ 0.62468917, 0.23676405, 0.31124564},
{ 0.6281251 , 0.24068989, 0.31125653},
{ 0.63152309, 0.24464358, 0.3112934},
{ 0.63488335, 0.24862429, 0.3113576},
{ 0.63820616, 0.25263112, 0.31145067},
{ 0.64149182, 0.25666317, 0.31157436},
{ 0.64474038, 0.26072, 0.31172919},
{ 0.64795203, 0.26480095, 0.3119164},
{ 0.65112691, 0.26890541, 0.31213721},
{ 0.65426523, 0.27303275, 0.31239299},
{ 0.65736724, 0.27718218, 0.31268539},
{ 0.66043291, 0.28135348, 0.31301496},
{ 0.66346234, 0.28554617, 0.31338289},
{ 0.66645563, 0.28975979, 0.31379035},
{ 0.66941285, 0.29399391, 0.31423853},
{ 0.67233423, 0.29824791, 0.31472899},
{ 0.67521975, 0.30252154, 0.31526265},
{ 0.67806939, 0.30681452, 0.31584052},
{ 0.68088318, 0.3111265 , 0.31646379},
{ 0.68366117, 0.31545715, 0.31713364},
{ 0.68640337, 0.31980615, 0.31785128},
{ 0.68910996, 0.324173 , 0.31861821},
{ 0.69178081, 0.32855759, 0.31943534},
{ 0.6944159 , 0.33295966, 0.32030382},
{ 0.69701522, 0.33737894, 0.32122489},
{ 0.69957876, 0.34181516, 0.32219978},
{ 0.70210653, 0.34626807, 0.3232297},
{ 0.7045986 , 0.35073729, 0.32431605},
{ 0.70705492, 0.35522263, 0.32545997},
{ 0.70947542, 0.3597239 , 0.32666265},
{ 0.7118601 , 0.36424085, 0.32792534},
{ 0.71420894, 0.36877323, 0.3292493},
{ 0.71652194, 0.37332079, 0.3306358},
{ 0.71879913, 0.37788325, 0.33208612},
{ 0.72104061, 0.38246028, 0.3336016},
{ 0.72324628, 0.38705172, 0.33518339},
{ 0.72541618, 0.3916573 , 0.33683277},
{ 0.72755035, 0.39627674, 0.33855099},
{ 0.72964884, 0.40090978, 0.34033932},
{ 0.73171172, 0.40555611, 0.34219899},
{ 0.73373911, 0.41021541, 0.34413127},
{ 0.73573115, 0.41488736, 0.34613738},
{ 0.73768789, 0.41957169, 0.34821851},
{ 0.73960949, 0.42426807, 0.35037584},
{ 0.7414961 , 0.42897616, 0.35261056},
{ 0.74334793, 0.43369562, 0.35492382},
{ 0.74516521, 0.43842607, 0.35731674},
{ 0.74694821, 0.44316712, 0.35979044},
{ 0.74869724, 0.44791835, 0.36234598},
{ 0.75041257, 0.4526794 , 0.36498439},
{ 0.75209454, 0.45744986, 0.36770666},
{ 0.75374356, 0.46222929, 0.37051374},
{ 0.75536003, 0.46701725, 0.37340656},
{ 0.75694444, 0.47181326, 0.37638597},
{ 0.75849733, 0.47661683, 0.37945279},
{ 0.76001934, 0.48142741, 0.38260777},
{ 0.76151097, 0.48624456, 0.38585161},
{ 0.76297286, 0.49106776, 0.38918495},
{ 0.76440573, 0.49589647, 0.39260837},
{ 0.76581031, 0.50073015, 0.39612236},
{ 0.76718741, 0.50556824, 0.39972737},
{ 0.76853788, 0.51041015, 0.40342376},
{ 0.76986291, 0.51525513, 0.40721173},
{ 0.77116324, 0.52010271, 0.41109152},
{ 0.77243989, 0.5249523 , 0.41506327},
{ 0.77369391, 0.52980327, 0.41912699},
{ 0.77492645, 0.53465502, 0.42328264},
{ 0.77613869, 0.53950688, 0.42753006},
{ 0.77733187, 0.54435824, 0.43186902},
{ 0.77850729, 0.54920844, 0.43629918},
{ 0.77966679, 0.55405656, 0.44081985},
{ 0.78081138, 0.55890219, 0.4454307},
{ 0.78194248, 0.56374468, 0.45013112},
{ 0.7830616 , 0.5685834 , 0.45492037},
{ 0.78417029, 0.57341769, 0.45979765},
{ 0.78527014, 0.57824693, 0.46476204},
{ 0.78636281, 0.58307048, 0.46981252},
{ 0.78744997, 0.58788771, 0.474948},
{ 0.78853333, 0.59269801, 0.48016727},
{ 0.78961491, 0.59750067, 0.48546886},
{ 0.79069671, 0.60229498, 0.49085119},
{ 0.79178009, 0.6070806 , 0.49631312},
{ 0.79286688, 0.61185698, 0.50185312},
{ 0.7939589 , 0.61662359, 0.50746956},
{ 0.79505802, 0.62137992, 0.51316075},
{ 0.79616609, 0.62612549, 0.51892492},
{ 0.79728497, 0.63085984, 0.52476024},
{ 0.79841652, 0.63558252, 0.53066483},
{ 0.7995626 , 0.64029314, 0.53663673},
{ 0.80072505, 0.64499131, 0.54267394},
{ 0.80190568, 0.64967668, 0.54877442},
{ 0.80310632, 0.65434893, 0.55493609},
{ 0.80432873, 0.65900778, 0.56115682},
{ 0.80557466, 0.66365295, 0.56743447},
{ 0.80684582, 0.66828424, 0.57376686},
{ 0.80814389, 0.67290145, 0.58015179},
{ 0.8094705 , 0.67750443, 0.58658707},
{ 0.81082722, 0.68209304, 0.59307049},
{ 0.81221558, 0.68666721, 0.59959981},
{ 0.81363705, 0.69122688, 0.60617284},
{ 0.81509306, 0.69577202, 0.61278737},
{ 0.81658494, 0.70030265, 0.6194412},
{ 0.81811398, 0.70481883, 0.62613217},
{ 0.81968139, 0.70932062, 0.63285811},
{ 0.82128832, 0.71380816, 0.63961689},
{ 0.82293582, 0.71828159, 0.64640643},
{ 0.82462489, 0.7227411 , 0.65322464},
{ 0.82635642, 0.72718691, 0.66006948},
{ 0.82813124, 0.73161926, 0.66693898},
{ 0.82995006, 0.73603846, 0.67383115},
{ 0.83181351, 0.74044483, 0.68074409},
{ 0.83372214, 0.74483873, 0.68767592},
{ 0.83567636, 0.74922057, 0.69462479},
{ 0.83767708, 0.75359061, 0.70158791},
{ 0.83972535, 0.75794913, 0.70856199},
{ 0.84181991, 0.76229704, 0.71554745},
{ 0.84396065, 0.76663495, 0.72254259},
{ 0.84614733, 0.77096352, 0.72954568},
{ 0.8483795 , 0.77528348, 0.73655503},
{ 0.85065653, 0.77959564, 0.74356888},
{ 0.85297758, 0.7839009 , 0.75058542},
{ 0.8553436 , 0.7881998 , 0.75759877},
{ 0.8577521 , 0.79249376, 0.76460878},
{ 0.86020061, 0.79678427, 0.77161459},
{ 0.8626872 , 0.80107277, 0.77861331},
{ 0.86520968, 0.80536087, 0.78560141},
{ 0.86776571, 0.8096503 , 0.79257445},
{ 0.87035656, 0.81394216, 0.79951954},
{ 0.87297684, 0.81823907, 0.80643635},
{ 0.87562545, 0.82254271, 0.81331573},
{ 0.87830287, 0.82685434, 0.8201464},
{ 0.88101291, 0.83117417, 0.82691355},
{ 0.88376436, 0.8355008 , 0.83359813},
{ 0.88656419, 0.83983241, 0.84019282},
{ 0.88942615, 0.84416471, 0.84668696},
{ 0.89236612, 0.84849196, 0.85307571},
{ 0.89540326, 0.85280703, 0.85935491},
{ 0.89854578, 0.85710498, 0.86554325},
{ 0.90180023, 0.86138156, 0.87165915},
{ 0.90516762, 0.86563454, 0.87772373},
{ 0.90864556, 0.86986351, 0.88375343},
{ 0.91222303, 0.87407051, 0.8897753},
{ 0.91589042, 0.87825797, 0.89580632},
{ 0.91963903, 0.88242879, 0.9018554},
{ 0.92345937, 0.88658601, 0.90793267},
{ 0.92734253, 0.89073234, 0.914049},
{ 0.93128235, 0.89487013, 0.92020762},
{ 0.93527444, 0.89900167, 0.92640565},
{ 0.93931328, 0.90312833, 0.93265281},
{ 0.94339574, 0.90725141, 0.93895042},
{ 0.9475205 , 0.91137261, 0.94528884},
{ 0.95168443, 0.9154922 , 0.95167893},
{ 0.95588623, 0.91961077, 0.95812116}
};
void hsl_to_rgb_jet(double h, double s, double l, double rgb[3]) /* color conversion from HSL to RGB */
/* h = hue, s = saturation, l = luminosity */
@ -1602,7 +2116,7 @@ void hsl_to_rgb_jet(double h, double s, double l, double rgb[3]) /* color
void hsl_to_rgb(double h, double s, double l, double rgb[3]) /* color conversion from HSL to RGB */
{
int color_hue, i;
double r, g, b, ratio = 0.711111111; /* ratio equals 256/360 */
double r, g, b, ratio = 0.711111111, interpolate; /* ratio equals 256/360 */
switch (COLOR_PALETTE) {
case (COL_JET):
@ -1618,6 +2132,14 @@ void hsl_to_rgb(double h, double s, double l, double rgb[3]) /* color con
rgb[2] = 2.0*l*b*100.0;
break;
}
case (COL_GRAY):
{
color_hue = h/360.0;
rgb[0] = color_hue;
rgb[1] = color_hue;
rgb[2] = color_hue;
break;
}
case (COL_TURBO):
{
color_hue = 255 - (int)(ratio*h);
@ -1660,13 +2182,46 @@ void hsl_to_rgb(double h, double s, double l, double rgb[3]) /* color con
for (i=0; i<3; i++) rgb[i] = 2.0*l*(double)parula_srgb_floats[color_hue][i];
break;
}
case (COL_TWILIGHT):
{
color_hue = 510 - (int)(2.0*ratio*h);
if (color_hue > 510) color_hue = 510;
else if (color_hue < 0) color_hue = 0;
for (i=0; i<3; i++) rgb[i] = 2.0*l*(double)twilight_srgb_floats[color_hue][i];
break;
}
case (COL_TWILIGHT_SHIFTED):
{
// color_hue = 255 - (int)(2.0*ratio*h);
color_hue = (int)(2.0*ratio*h) - 255;
if (color_hue > 510) color_hue -= 510;
else if (color_hue < 0) color_hue += 510;
for (i=0; i<3; i++) rgb[i] = 2.0*l*(double)twilight_srgb_floats[color_hue][i];
break;
}
case (COL_TURBO_CYCLIC):
{
if (h < 330.0)
{
color_hue = 255 - (int)(ratio*h*12.0/11.0);
for (i=0; i<3; i++) rgb[i] = 2.0*l*(double)turbo_srgb_floats[color_hue][i];
}
else /* use a convex combination to interpolate between extremal Turbo values */
{
if (h > 360.0) h = 360.0;
interpolate = (h - 330.0)/30.0;
for (i=0; i<3; i++)
rgb[i] = (1.0 - interpolate)*(double)turbo_srgb_floats[255][i] + interpolate*(double)turbo_srgb_floats[0][i];
}
break;
}
}
}
void amp_to_rgb(double h, double rgb[3]) /* color conversion from amplitude in [0,1] to RGB */
{
int color_hue, i;
double r, g, b;
double r, g, b, interpolate;
color_hue = (int)(256.0*h);
if (color_hue > 255) color_hue = 255;
@ -1685,6 +2240,13 @@ void amp_to_rgb(double h, double rgb[3]) /* color conversion from amplitu
rgb[2] = b*100.0;
break;
}
case (COL_GRAY):
{
rgb[0] = h;
rgb[1] = h;
rgb[2] = h;
break;
}
case (COL_TURBO):
{
for (i=0; i<3; i++) rgb[i] = (double)turbo_srgb_floats[color_hue][i];
@ -1720,6 +2282,60 @@ void amp_to_rgb(double h, double rgb[3]) /* color conversion from amplitu
for (i=0; i<3; i++) rgb[i] = (double)parula_srgb_floats[color_hue][i];
break;
}
case (COL_TWILIGHT):
{
color_hue = (int)(511.0*h);
if (color_hue > 510) color_hue = 510;
else if (color_hue < 0) color_hue = 0;
for (i=0; i<3; i++) rgb[i] = (double)twilight_srgb_floats[color_hue][i];
break;
}
case (COL_TWILIGHT_SHIFTED):
{
// color_hue = (int)(511.0*h) + 255;
color_hue = 255 - (int)(511.0*h);
if (color_hue > 510) color_hue -= 510;
else if (color_hue < 0) color_hue += 510;
for (i=0; i<3; i++) rgb[i] = (double)twilight_srgb_floats[color_hue][i];
break;
}
case (COL_TURBO_CYCLIC):
{
if (h < 0.9)
{
color_hue = (int)(256.0*h/0.9);
for (i=0; i<3; i++) rgb[i] = (double)turbo_srgb_floats[color_hue][i];
}
else /* use a convex combination to interpolate between extremal Turbo values */
{
if (h > 1.0) h = 1.0;
interpolate = (h - 0.9)/0.1;
for (i=0; i<3; i++)
rgb[i] = (1.0 - interpolate)*(double)turbo_srgb_floats[255][i] + interpolate*(double)turbo_srgb_floats[0][i];
}
break;
}
}
}
void hsl_to_rgb_turbo(double h, double s, double l, double rgb[3])
/* color conversion from HSL to RGB, specific to Turbo (for printing temperature) */
{
int color_hue, i;
double r, g, b, ratio = 0.711111111, interpolate; /* ratio equals 256/360 */
color_hue = 255 - (int)(ratio*h);
for (i=0; i<3; i++) rgb[i] = 2.0*l*(double)turbo_srgb_floats[color_hue][i];
}
void hsl_to_rgb_twilight(double h, double s, double l, double rgb[3])
/* color conversion from HSL to RGB, specific to Turbo */
{
int color_hue, i;
double r, g, b, ratio = 0.711111111, interpolate; /* ratio equals 256/360 */
color_hue = 510 - (int)(2.0*ratio*h);
if (color_hue > 510) color_hue = 510;
else if (color_hue < 0) color_hue = 0;
for (i=0; i<3; i++) rgb[i] = 2.0*l*(double)twilight_srgb_floats[color_hue][i];
}

13
colors_waves.c
View File

@ -12,6 +12,11 @@ double color_amplitude_asym(double value, double scale, int time)
return(2.0*tanh(SLOPE*value/scale)*exp(-((double)time*ATTENUATION)) - 1.0);
}
double color_amplitude_linear(double value, double scale, int time)
/* transforms the wave amplitude into a double in [-1,1] to feed into color scheme */
{
return(SLOPE*value/scale);
}
void color_scheme(int scheme, double value, double scale, int time, double rgb[3]) /* color scheme */
{
@ -50,6 +55,14 @@ void color_scheme(int scheme, double value, double scale, int time, double rgb[3
amp_to_rgb(0.5*(1.0 + amplitude), rgb);
break;
}
case (C_ONEDIM_LINEAR):
{
amplitude = color_amplitude_linear(value, scale, time);
if (amplitude > 1.0) amplitude -= 1.0;
else if (amplitude < 0.0) amplitude += 1.0;
amp_to_rgb(amplitude, rgb);
break;
}
}
}

28
global_ljones.c
View File

@ -36,15 +36,21 @@
#define I_COULOMB 0 /* Coulomb force */
#define I_LENNARD_JONES 1 /* Lennard-Jones force */
#define I_LJ_DIRECTIONAL 2 /* Lennard-Jones with direction dependence */
#define I_LJ_DIRECTIONAL 2 /* Lennard-Jones with direction dependence of square symmetry */
#define I_LJ_PENTA 3 /* Lennard-Jones with pentagonal symmetry */
#define I_GOLDENRATIO 4 /* Lennard-Jones type with equilibria related by golden ratio */
#define I_LJ_DIPOLE 5 /* Lennard-Jones with a dipolar angle dependence */
#define I_LJ_QUADRUPOLE 6 /* Lennard-Jones with a quadropolar angle dependence */
/* Boundary conditions */
#define BC_SCREEN 0 /* harmonic boundary conditions outside screen area */
#define BC_RECTANGLE 1 /* harmonic boundary conditions on a resizeable rectangle */
#define BC_CIRCLE 2 /* harmonic boundary conditions outside a moving circle */
#define BC_PERIODIC 3 /* periodic boundary conditions */
#define BC_PERIODIC_CIRCLE 4 /* periodic boundary conditions and harmonic b.c. outside moving circle */
#define BC_EHRENFEST 5 /* Ehrenfest urn-type configuration */
#define BC_KLEIN 11 /* Klein bottle (periodic with twisted vertical parts) */
/* Plot types */
@ -52,7 +58,9 @@
#define P_NEIGHBOURS 1 /* colors represent number of neighbours */
#define P_HEALTH 2 /* colors represent health (for SIR model) */
#define P_BONDS 3 /* draw lattice based on neighbours */
#define P_ANGLE 4 /* colors represent angle/spin of particle */
#define P_TYPE 5 /* colors represent type of particle */
#define P_DIRECTION 6 /* colors represent direction of velocity */
/* Color schemes */
@ -60,11 +68,13 @@
#define C_HUE 1 /* color scheme modifies hue */
#define C_PHASE 2 /* color scheme shows phase */
#define C_ONEDIM 3 /* use preset 1d color scheme (for Turbo, Viridis, Magma, Inferno, Plasma) */
#define C_ONEDIM_LINEAR 4 /* use preset 1d color scheme with linear scale */
/* Color palettes */
#define COL_JET 0 /* JET color palette */
#define COL_HSLUV 1 /* HSLUV color palette (perceptually uniform) */
#define COL_GRAY 2 /* grayscale */
#define COL_TURBO 10 /* TURBO color palette (by Anton Mikhailov) */
#define COL_VIRIDIS 11 /* Viridis color palette */
@ -73,23 +83,37 @@
#define COL_PLASMA 14 /* Plasma color palette */
#define COL_CIVIDIS 15 /* Cividis color palette */
#define COL_PARULA 16 /* Parula color palette */
#define COL_TWILIGHT 17 /* Twilight color palette */
#define COL_TWILIGHT_SHIFTED 18 /* Shifted twilight color palette */
#define COL_TURBO_CYCLIC 101 /* TURBO color palette (by Anton Mikhailov) corrected to be cyclic, beta */
typedef struct
{
double xc, yc, radius; /* center and radius of circle */
double angle; /* angle of particle's "spin" */
short int active; /* circle is active */
double energy; /* dissipated energy */
double vx; /* x velocity of particle */
double vy; /* y velocity of particle */
double omega; /* angular velocity of particle */
double mass_inv; /* inverse of particle mass */
double inertia_moment_inv; /* inverse of moment of inertia */
double fx; /* x component of force on particle */
double fy; /* y component of force on particle */
double torque; /* torque on particle */
short int thermostat; /* whether particle is coupled to thermostat */
int hashx; /* hash grid positions of particles */
int hashy; /* hash grid positions of particles */
int neighb; /* number of neighbours */
int neighbours[MAXNEIGH]; /* coordinates of neighbours */
double nghangle[MAXNEIGH]; /* angles of neighbours */
short int type; /* type of particle, for mixture simulations */
short int interaction; /* type of interaction */
double eq_dist; /* equilibrium distance */
double spin_range; /* range of spin-spin interaction */
double spin_freq; /* angular frequency of spin-spin interaction */
} t_particle;
typedef struct

5
global_particles.c
View File

@ -82,6 +82,7 @@ double x_shooter = -0.2, y_shooter = -0.6, x_target = 0.4, y_target = 0.7;
#define COL_JET 0 /* JET color palette */
#define COL_HSLUV 1 /* HSLUV color palette (perceptually uniform) */
#define COL_GRAY 2 /* grayscale */
#define COL_TURBO 10 /* TURBO color palette (by Anton Mikhailov) */
#define COL_VIRIDIS 11 /* Viridis color palette */
@ -90,5 +91,9 @@ double x_shooter = -0.2, y_shooter = -0.6, x_target = 0.4, y_target = 0.7;
#define COL_PLASMA 14 /* Plasma color palette */
#define COL_CIVIDIS 15 /* Cividis color palette */
#define COL_PARULA 16 /* Parula color palette */
#define COL_TWILIGHT 17 /* Twilight color palette */
#define COL_TWILIGHT_SHIFTED 18 /* Shifted twilight color palette */
#define COL_TURBO_CYCLIC 101 /* TURBO color palette (by Anton Mikhailov) corrected to be cyclic, beta */

15
global_pdes.c
View File

@ -50,6 +50,9 @@
#define D_POLYGONS 40 /* several polygons */
#define D_VONKOCH 41 /* von Koch snowflake fractal */
#define D_STAR 42 /* star shape */
#define D_FRESNEL 43 /* Fresnel lens */
#define D_NOISEPANEL 44 /* zigzag noise insulating panel */
#define D_DOUBLE_FRESNEL 45 /* two facing Fresnel lenses */
#define NMAXCIRCLES 10000 /* total number of circles/polygons (must be at least NCX*NCY for square grid) */
#define NMAXPOLY 50000 /* maximal number of vertices of polygonal lines (for von Koch et al) */
@ -68,8 +71,11 @@
#define C_GOLDEN_MEAN 10 /* pattern based on vertical shifts by golden mean */
#define C_GOLDEN_SPIRAL 11 /* spiral pattern based on golden mean */
#define C_SQUARE_HEX 12 /* alternating between square and hexagonal/triangular */
#define C_HEX_NONUNIF 13 /* triangular grid with non-constant column distance */
#define C_RINGS 20 /* obstacles arranged in concentruc rings */
#define C_RINGS 20 /* obstacles arranged in concentric rings */
#define C_RINGS_T 201 /* obstacles arranged in concentric rings, triangular lattice */
#define C_RINGS_SPIRAL 202 /* obstacles arranged on a "subflower" spiral, similar to C_GOLDEN_SPIRAL */
#define C_ONE 97 /* one single circle, as for Sinai */
#define C_TWO 98 /* two concentric circles of different type */
@ -122,11 +128,13 @@
#define C_HUE 1 /* color scheme modifies hue */
#define C_PHASE 2 /* color scheme shows phase */
#define C_ONEDIM 3 /* use preset 1d color scheme (for Turbo, Viridis, Magma, Inferno, Plasma) */
#define C_ONEDIM_LINEAR 4 /* use preset 1d color scheme with linear scale */
/* Color palettes */
#define COL_JET 0 /* JET color palette */
#define COL_HSLUV 1 /* HSLUV color palette (perceptually uniform) */
#define COL_GRAY 2 /* grayscale */
#define COL_TURBO 10 /* TURBO color palette (by Anton Mikhailov) */
#define COL_VIRIDIS 11 /* Viridis color palette */
@ -135,6 +143,11 @@
#define COL_PLASMA 14 /* Plasma color palette */
#define COL_CIVIDIS 15 /* Cividis color palette */
#define COL_PARULA 16 /* Parula color palette */
#define COL_TWILIGHT 17 /* Twilight color palette */
#define COL_TWILIGHT_SHIFTED 18 /* Shifted twilight color palette */
#define COL_TURBO_CYCLIC 101 /* TURBO color palette (by Anton Mikhailov) corrected to be cyclic, beta */
typedef struct
{

53
heat.c
View File

@ -39,10 +39,12 @@
/* General geometrical parameters */
#define WINWIDTH 1280 /* window width */
// #define WINWIDTH 1280 /* window width */
#define WINWIDTH 720 /* window width */
#define WINHEIGHT 720 /* window height */
#define NX 1280 /* number of grid points on x axis */
// #define NX 1280 /* number of grid points on x axis */
#define NX 720 /* number of grid points on x axis */
#define NY 720 /* number of grid points on y axis */
// #define NX 640 /* number of grid points on x axis */
// #define NY 360 /* number of grid points on y axis */
@ -52,8 +54,8 @@
// #define XMIN -2.0
// #define XMAX 2.0 /* x interval */
#define XMIN -2.5
#define XMAX 1.5 /* x interval */
#define XMIN -1.125
#define XMAX 1.125 /* x interval */
#define YMIN -1.125
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
@ -61,7 +63,7 @@
/* Choice of the billiard table */
#define B_DOMAIN 26 /* choice of domain shape, see list in global_pdes.c */
#define B_DOMAIN 27 /* choice of domain shape, see list in global_pdes.c */
#define CIRCLE_PATTERN 0 /* pattern of circles, see list in global_pdes.c */
@ -69,11 +71,11 @@
#define NPOISSON 300 /* number of points for Poisson C_RAND_POISSON arrangement */
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
#define LAMBDA -1.0 /* parameter controlling the dimensions of domain */
#define MU 0.1 /* parameter controlling the dimensions of domain */
#define LAMBDA 1.1 /* parameter controlling the dimensions of domain */
#define MU 0.8 /* parameter controlling the dimensions of domain */
#define NPOLY 6 /* number of sides of polygon */
#define APOLY 1.0 /* angle by which to turn polygon, in units of Pi/2 */
#define MDEPTH 5 /* depth of computation of Menger gasket */
#define MDEPTH 6 /* depth of computation of Menger gasket */
#define MRATIO 5 /* ratio defining Menger gasket */
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
@ -115,11 +117,12 @@
/* Parameters for length and speed of simulation */
#define NSTEPS 1000 /* number of frames of movie */
#define NVID 50 /* number of iterations between images displayed on screen */
#define NSTEPS 1200 /* number of frames of movie */
#define NVID 30 /* number of iterations between images displayed on screen */
// #define NVID 100 /* number of iterations between images displayed on screen */
#define NSEG 100 /* number of segments of boundary */
#define BOUNDARY_WIDTH 1 /* width of billiard boundary */
#define DRAW_BILLIARD 0 /* set to 1 to draw billiard boundary */
#define PAUSE 100 /* number of frames after which to pause */
#define PSLEEP 1 /* sleep time during pause */
@ -132,12 +135,12 @@
/* Field representation */
#define FIELD_REP 1
#define FIELD_REP 0
#define F_INTENSITY 0 /* color represents intensity */
#define F_GRADIENT 1 /* color represents norm of gradient */
#define DRAW_FIELD_LINES 1 /* set to 1 to draw field lines */
#define DRAW_FIELD_LINES 0 /* set to 1 to draw field lines */
#define FIELD_LINE_WIDTH 1 /* width of field lines */
#define N_FIELD_LINES 120 /* number of field lines */
#define FIELD_LINE_FACTOR 120 /* factor controlling precision when computing origin of field lines */
@ -154,8 +157,6 @@
// #define SLOPE 0.1 /* sensitivity of color on wave amplitude */
#define SLOPE 0.2 /* sensitivity of color on wave amplitude */
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
#define E_SCALE 100.0 /* scaling factor for energy representation */
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
@ -167,12 +168,14 @@
#define HUEAMP -359.0 /* amplitude of variation of hue for color scheme C_HUE */
// #define HUEMEAN 270.0 /* mean value of hue for color scheme C_HUE */
// #define HUEAMP -130.0 /* amplitude of variation of hue for color scheme C_HUE */
#define E_SCALE 100.0 /* scaling factor for energy representation */
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
#define LOG_SHIFT 0.0
#define DRAW_COLOR_SCHEME 0 /* set to 1 to plot the color scheme */
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
#define COLORBAR_RANGE 2.0 /* scale of color scheme bar */
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
#define ROTATE_COLOR_SCHEME 1 /* set to 1 to draw color scheme horizontally */
#include "global_pdes.c"
#include "sub_wave.c"
@ -345,8 +348,10 @@ void draw_wave(double *phi[NX], short int *xy_in[NX], double scale, int time)
printf("computing linex\n");
x1 = LAMBDA + MU*1.01;
y1 = 1.0;
// x1 = LAMBDA + MU*1.01;
// y1 = 1.0;
x1 = 0.99*LAMBDA;
y1 = 0.0;
linex[0] = x1;
liney[0] = y1;
dangle = DPI/((double)(N_FIELD_LINES*FIELD_LINE_FACTOR));
@ -354,8 +359,10 @@ void draw_wave(double *phi[NX], short int *xy_in[NX], double scale, int time)
for (i = 1; i < N_FIELD_LINES*FIELD_LINE_FACTOR; i++)
{
angle = (double)i*dangle;
x2 = LAMBDA + MU*1.01*cos(angle);
y2 = 0.5 + MU*1.01*sin(angle);
// x2 = LAMBDA + MU*1.01*cos(angle);
// y2 = 0.5 + MU*1.01*sin(angle);
x2 = 0.99*LAMBDA*cos(angle);
y2 = 0.99*LAMBDA*sin(angle);
linex[i] = x2;
liney[i] = y2;
distance[i-1] = module2(x2-x1,y2-y1);
@ -664,7 +671,7 @@ void animation()
glutSwapBuffers();
draw_wave(phi, xy_in, 1.0, 0);
draw_billiard();
if (DRAW_BILLIARD) draw_billiard();
// print_Julia_parameters(i);
// print_level(MDEPTH);
@ -691,7 +698,7 @@ void animation()
for (j=0; j<NVID; j++) evolve_wave(phi, phi_tmp, xy_in);
draw_billiard();
if (DRAW_BILLIARD) draw_billiard();
// print_level(MDEPTH);
// print_Julia_parameters(i);

1393
lennardjones.c
View File

File diff suppressed because it is too large Load Diff

2
mangrove.c
View File

@ -176,6 +176,8 @@
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
#define E_SCALE 2500.0 /* scaling factor for energy representation */
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
#define LOG_SHIFT 0.0 /* shift of colors on log scale */
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */

31
particle_billiard.c
View File

@ -30,7 +30,7 @@
#include <sys/types.h>
#include <tiffio.h> /* Sam Leffler's libtiff library. */
#define MOVIE 1 /* set to 1 to generate movie */
#define MOVIE 0 /* set to 1 to generate movie */
#define WINWIDTH 1280 /* window width */
#define WINHEIGHT 720 /* window height */
@ -62,7 +62,7 @@
#define SDEPTH 1 /* Sierpinski gastket depth */
#define LAMBDA 0.8 /* parameter controlling shape of domain */
#define MU 0.0025 /* second parameter controlling shape of billiard */
#define MU 0.015 /* second parameter controlling shape of billiard */
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
#define NPOLY 6 /* number of sides of polygon */
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
@ -75,21 +75,21 @@
/* Simulation parameters */
#define NPART 1 /* number of particles */
#define NPART 5000 /* number of particles */
#define NPARTMAX 100000 /* maximal number of particles after resampling */
#define LMAX 0.01 /* minimal segment length triggering resampling */
#define DMIN 0.02 /* minimal distance to boundary for triggering resampling */
#define CYCLE 1 /* set to 1 for closed curve (start in all directions) */
#define SHOWTRAILS 1 /* set to 1 to keep trails of the particles */
#define SHOWZOOM 1 /* set to 1 to show zoom on specific area */
#define PRINT_PARTICLE_NUMBER 0 /* set to 1 to print number of particles */
#define PRINT_COLLISION_NUMBER 1 /* set to 1 to print number of collisions */
#define PRINT_PARTICLE_NUMBER 1 /* set to 1 to print number of particles */
#define PRINT_COLLISION_NUMBER 0 /* set to 1 to print number of collisions */
#define TEST_ACTIVE 1 /* set to 1 to test whether particle is in billiard */
#define NSTEPS 9000 /* number of frames of movie */
#define NSTEPS 5000 /* number of frames of movie */
#define TIME 1500 /* time between movie frames, for fluidity of real-time simulation */
#define DPHI 0.00001 /* integration step */
#define NVID 300 /* number of iterations between images displayed on screen */
#define NVID 150 /* number of iterations between images displayed on screen */
/* Decreasing TIME accelerates the animation and the movie */
/* For constant speed of movie, TIME*DPHI should be kept constant */
@ -99,14 +99,14 @@
/* Colors and other graphical parameters */
#define COLOR_PALETTE 16 /* Color palette, see list in global_pdes.c */
#define COLOR_PALETTE 11 /* Color palette, see list in global_pdes.c */
#define NCOLORS 32 /* number of colors */
#define COLORSHIFT 0 /* hue of initial color */
#define RAINBOW_COLOR 0 /* set to 1 to use different colors for all particles */
#define RAINBOW_COLOR 1 /* set to 1 to use different colors for all particles */
#define FLOWER_COLOR 0 /* set to 1 to adapt initial colors to flower billiard (tracks vs core) */
#define NSEG 100 /* number of segments of boundary */
#define LENGTH 0.015 /* length of velocity vectors */
#define LENGTH 0.05 /* length of velocity vectors */
#define BILLIARD_WIDTH 2 /* width of billiard */
#define PARTICLE_WIDTH 3 /* width of particles */
#define FRONT_WIDTH 3 /* width of wave front */
@ -117,8 +117,8 @@
#define PAINT_INT 0 /* set to 1 to paint interior in other color (for polygon/Reuleaux) */
#define PAINT_EXT 1 /* set to 1 to paint exterior */
#define PAUSE 1000 /* number of frames after which to pause */
#define PSLEEP 1 /* sleep time during pause */
#define PAUSE 200 /* number of frames after which to pause */
#define PSLEEP 2 /* sleep time during pause */
#define SLEEP1 1 /* initial sleeping time */
#define SLEEP2 1000 /* final sleeping time */
@ -668,7 +668,7 @@ void animation()
// init_drop_config(-1.0 + 0.3*sqrt(2.0), -1.0 + 0.5*sqrt(2.0), 0.0, DPI, configs);
// init_line_config(-1.25, -0.5, -1.25, 0.5, 0.0, configs);
init_line_config(0.0, 0.3, 0.0, 0.9, 0.0, configs);
// init_drop_config(-0.95, 0.0, -0.103 + DPI/15.0, -0.1 + DPI/15.0, configs);
/* find long trajectory */
@ -693,8 +693,8 @@ void animation()
// }
// printf("Angle %.6lg, max length %i\n", alphamax, lengthmax);
alphamax = 2.50949;
init_drop_config(x_shooter, y_shooter, alphamax, alphamax + DPI, configs);
// alphamax = 2.50949;
// init_drop_config(x_shooter, y_shooter, alphamax, alphamax + DPI, configs);
// init_drop_config(-0.95, 0.0, 1.0, 1.0 + DPI, configs);
@ -793,6 +793,7 @@ void animation()
s = system("mv part*.tif tif_part/");
}
}
else printf("Frame %i\n", i);
}
if (MOVIE)

2
schrodinger.c
View File

@ -142,6 +142,8 @@
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
#define E_SCALE 150.0 /* scaling factor for energy representation */
#define LOG_SCALE 1.0 /* scaling factor for energy log representation */
#define LOG_SHIFT 0.0 /* shift of colors on log scale */
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */

95
sub_lj.c
View File

@ -179,6 +179,17 @@ void write_text( double x, double y, char *st)
return(alph);
}
double ipow(double x, int n)
{
double y;
int i;
y = x;
for (i=1; i<n; i++) y *= x;
return(y);
}
/*********************/
@ -225,6 +236,14 @@ void erase_area_hsl(double x, double y, double dx, double dy, double h, double s
erase_area_rgb(x, y, dx, dy, rgb);
}
void erase_area_hsl_turbo(double x, double y, double dx, double dy, double h, double s, double l)
{
double pos[2], rgb[3];
hsl_to_rgb_turbo(h, s, l, rgb);
erase_area_rgb(x, y, dx, dy, rgb);
}
void draw_line(double x1, double y1, double x2, double y2)
{
glBegin(GL_LINE_STRIP);
@ -289,7 +308,83 @@ void draw_colored_circle(double x, double y, double r, int nseg, double rgb[3])
glEnd();
}
void draw_polygon(double x, double y, double r, int nsides, double angle)
{
int i;
double pos[2], alpha, dalpha;
dalpha = DPI/(double)nsides;
glBegin(GL_LINE_LOOP);
for (i=0; i<=nsides; i++)
{
alpha = angle + (double)i*dalpha;
glVertex2d(x + r*cos(alpha), y + r*sin(alpha));
}
glEnd();
}
void draw_colored_polygon(double x, double y, double r, int nsides, double angle, double rgb[3])
{
int i;
double pos[2], alpha, dalpha;
dalpha = DPI/(double)nsides;
glColor3f(rgb[0], rgb[1], rgb[2]);
glBegin(GL_TRIANGLE_FAN);
glVertex2d(x, y);
for (i=0; i<=nsides; i++)
{
alpha = angle + (double)i*dalpha;
glVertex2d(x + r*cos(alpha), y + r*sin(alpha));
}
glEnd();
}
void draw_rhombus(double x, double y, double r, double angle)
{
int i;
static int first = 1;
static double ratio;
if (first)
{
ratio = tan(0.1*PI);
first = 0;
}
glBegin(GL_LINE_LOOP);
glVertex2d(x + r*cos(angle), y + r*sin(angle));
glVertex2d(x - ratio*r*sin(angle), y + ratio*r*cos(angle));
glVertex2d(x - r*cos(angle), y - r*sin(angle));
glVertex2d(x + ratio*r*sin(angle), y - ratio*r*cos(angle));
glEnd();
}
void draw_colored_rhombus(double x, double y, double r, double angle, double rgb[3])
{
int i;
static int first = 1;
static double ratio;
if (first)
{
ratio = tan(0.1*PI);
first = 0;
}
glColor3f(rgb[0], rgb[1], rgb[2]);
glBegin(GL_TRIANGLE_FAN);
glVertex2d(x, y);
glVertex2d(x + r*cos(angle), y + r*sin(angle));
glVertex2d(x - ratio*r*sin(angle), y + ratio*r*cos(angle));
glVertex2d(x - r*cos(angle), y - r*sin(angle));
glVertex2d(x + ratio*r*sin(angle), y - ratio*r*cos(angle));
glVertex2d(x + r*cos(angle), y + r*sin(angle));
glEnd();
}
void init_particle_config(t_particle particles[NMAXCIRCLES])
/* initialise particle configuration */

288
sub_wave.c
View File

@ -412,6 +412,18 @@ void erase_area_hsl(double x, double y, double dx, double dy, double h, double s
erase_area_rgb(x, y, dx, dy, rgb);
}
void draw_line(double x1, double y1, double x2, double y2)
{
double pos[2];
glBegin(GL_LINE_STRIP);
xy_to_pos(x1, y1, pos);
glVertex2d(pos[0], pos[1]);
xy_to_pos(x2, y2, pos);
glVertex2d(pos[0], pos[1]);
glEnd();
}
void draw_rectangle(double x1, double y1, double x2, double y2)
{
double pos[2];
@ -842,6 +854,62 @@ void init_circle_config(t_circle circles[NMAXCIRCLES])
}
break;
}
case (C_RINGS_T):
{
ncircles = NGRIDX*NGRIDY;
dphi = DPI/((double)NGRIDX);
dr = 0.5*LAMBDA/(double)NGRIDY;
for (i = 0; i < NGRIDX; i++)
for (j = 0; j < NGRIDY; j++)
{
n = NGRIDY*i + j;
phi = (double)i*dphi;
phi += 0.5*(double)j*dphi;
r = 0.5*LAMBDA + (double)j*dr;
circles[n].xc = r*cos(phi);
circles[n].yc = r*sin(phi);
circles[n].radius = MU;
/* activate only circles that intersect the domain */
if ((circles[n].yc < YMAX + MU)&&(circles[n].yc > YMIN - MU)) circles[n].active = 1;
else circles[n].active = 0;
}
break;
}
case (C_RINGS_SPIRAL):
{
ncircles = 0;
// circles[0].xc = 0.5*LAMBDA;
// circles[0].yc = 0.0;
gamma = (sqrt(5.0) - 1.0)*PI; /* golden mean times 2Pi */
phi = 0.0;
r0 = 0.5*LAMBDA;
r = r0 + MU;
for (i=0; i<1000; i++)
{
x = r*cos(phi);
y = r*sin(phi);
phi += gamma;
r += 0.1*MU*r0/r;
if (x*x + y*y < LAMBDA)
{
circles[ncircles].xc = x;
circles[ncircles].yc = y;
ncircles++;
}
}
for (i=0; i<ncircles; i++)
{
circles[i].radius = MU;
/* inactivate circles outside the domain */
if ((circles[i].yc < YMAX + MU)&&(circles[i].yc > YMIN - MU)) circles[i].active = 1;
}
break;
}
case (C_ONE):
{
circles[ncircles].xc = 0.0;
@ -901,7 +969,7 @@ void init_polygon_config(t_polygon polygons[NMAXCIRCLES])
}
/* adjust angles for C_RINGS configuration */
if (CIRCLE_PATTERN == C_RINGS)
if ((CIRCLE_PATTERN == C_RINGS)||(CIRCLE_PATTERN == C_RINGS_T)||(CIRCLE_PATTERN == C_RINGS_SPIRAL))
for (i=0; i<ncircles; i++) if (polygons[i].active)
polygons[i].angle += argument(polygons[i].xc, polygons[i].yc)/PID;
}
@ -1272,6 +1340,117 @@ int compute_star_coordinates(t_vertex polyline[NMAXPOLY])
return(NPOLY);
}
int compute_fresnel_coordinates(t_vertex polyline[NMAXPOLY])
/* compute positions of vertices approximating Fresnel lens */
{
int i;
double ymax, dy, x, y, x1, pos[2];
ymax = 0.9*LAMBDA;
dy = 2.0*ymax/(double)NSEG;
polyline[0].x = -MU;
polyline[0].y = -ymax;
xy_to_pos(-MU, -ymax, pos);
polyline[0].posi = pos[0];
polyline[0].posj = pos[1];
for (i=1; i<NSEG; i++)
{
y = -ymax + dy*(double)i;
x = sqrt(LAMBDA*LAMBDA - y*y) - vabs(LAMBDA);
// x = sqrt(LAMBDA*LAMBDA - y*y) - LAMBDA*LAMBDA;
while (x <= 0.0) x+= MU;
polyline[i].x = x;
polyline[i].y = y;
xy_to_pos(x, y, pos);
polyline[i].posi = pos[0];
polyline[i].posj = pos[1];
}
polyline[NSEG].x = -MU;
polyline[NSEG].y = ymax;
xy_to_pos(-MU, ymax, pos);
polyline[NSEG].posi = pos[0];
polyline[NSEG].posj = pos[1];
return(NSEG+1);
}
int compute_double_fresnel_coordinates(t_vertex polyline[NMAXPOLY], double xshift)
/* compute positions of vertices approximating two facing Fresnel lenses */
{
int i;
double pos[2];
compute_fresnel_coordinates(polyline);
for (i=0; i<=NSEG; i++)
{
polyline[i].x -= xshift;
xy_to_pos(polyline[i].x, polyline[i].y, pos);
polyline[i].posi = pos[0];
polyline[i].posj = pos[1];
polyline[NSEG + 1 + i].x = -polyline[i].x;
polyline[NSEG + 1 + i].y = polyline[i].y;
xy_to_pos(polyline[NSEG + 1 + i].x, polyline[NSEG + 1 + i].y, pos);
polyline[NSEG + 1 + i].posi = pos[0];
polyline[NSEG + 1 + i].posj = pos[1];
}
return(2*NSEG+2);
}
int compute_noisepanel_coordinates(t_vertex polyline[NMAXPOLY])
/* compute positions of vertices approximating Fresnel lens */
{
int i, n, even;
double ymax, dy, x, y, x1, pos[2];
/* find the leftmost point */
x = 0.0;
n = 0;
while (x > XMIN)
{
x -= LAMBDA;
n++;
}
if (n%2 == 0) even = 1;
else even = 0;
i = 0;
while (x <= XMAX + LAMBDA)
{
if (even) y = YMIN + 0.1;
else y = YMIN + 0.1 + MU;
polyline[i].x = x;
polyline[i].y = y;
xy_to_pos(x, y, pos);
polyline[i].posi = pos[0];
polyline[i].posj = pos[1];
x += LAMBDA;
even = 1 - even;
i++;
}
n = i;
for (i=0; i<n; i++)
{
polyline[n+i].x = polyline[n-i-1].x;
polyline[n+i].y = -polyline[n-i-1].y;
polyline[n+i].posi = polyline[n-i-1].posi;
polyline[n+i].posj = NY - polyline[n-i-1].posj;
}
return(2*n);
}
int init_polyline(int depth, t_vertex polyline[NMAXPOLY])
/* initialise variable polyline, for certain polygonal domain shapes */
@ -1309,6 +1488,18 @@ int init_polyline(int depth, t_vertex polyline[NMAXPOLY])
{
return(compute_star_coordinates(polyline));
}
case (D_FRESNEL):
{
return(compute_fresnel_coordinates(polyline));
}
case (D_DOUBLE_FRESNEL):
{
return(compute_double_fresnel_coordinates(polyline, LAMBDA));
}
case (D_NOISEPANEL):
{
return(compute_noisepanel_coordinates(polyline));
}
default:
{
return(0);
@ -1747,6 +1938,53 @@ int xy_in_billiard(double x, double y)
condition += xy_in_triangle_tvertex(x, y, polyline[NPOLY], polyline[i], polyline[i+1]);
return(condition >= 1);
}
case (D_FRESNEL):
{
if (vabs(y) > 0.9*LAMBDA) return(1);
if (vabs(x) > MU) return(1);
x1 = sqrt(LAMBDA*LAMBDA - y*y) - LAMBDA;
while (x1 <= 0.0) x1 += MU;
if (x < x1) return(0);
else return(1);
}
case (D_DOUBLE_FRESNEL):
{
if (vabs(y) > 0.9*vabs(LAMBDA)) return(1);
if (LAMBDA > 0.0)
{
if (vabs(x) > LAMBDA + MU) return(1);
x1 = sqrt(LAMBDA*LAMBDA - y*y) - LAMBDA;
while (x1 <= 0.0) x1 += MU;
x1 -= LAMBDA;
if (vabs(x) > -x1) return(0);
else return(1);
}
else
{
if (vabs(x) < -LAMBDA - MU) return(1);
x1 = sqrt(LAMBDA*LAMBDA - y*y) + LAMBDA;
while (x1 <= 0.0) x1 += MU;
x1 -= LAMBDA;
if (vabs(x) > x1) return(1);
else return(0);
}
}
case (D_NOISEPANEL):
{
x1 = vabs(x);
while (x1 > 2.0*LAMBDA) x1 -= 2.0*LAMBDA;
if (x1 <= LAMBDA) y1 = 0.1 + MU*x1/LAMBDA;
else y1 = 0.1 + 2.0*MU - MU*x1/LAMBDA;
return((y > YMIN + y1)&&(y < YMAX - y1));
// x1 = vabs(x);
// while (x1 > 2.0*LAMBDA) x1 -= 2.0*LAMBDA;
// if (x1 <= LAMBDA) y1 = MU + x1;
// else y1 = 3.0*MU - x1;
// return((y > YMIN + y1)&&(y < YMAX - y1));
}
case (D_MENGER):
{
x1 = 0.5*(x+1.0);
@ -2685,6 +2923,33 @@ void draw_billiard() /* draws the billiard boundary */
glEnd();
break;
}
case (D_FRESNEL):
{
glLineWidth(BOUNDARY_WIDTH);
glBegin(GL_LINE_LOOP);
for (i=0; i<npolyline; i++) tvertex_lineto(polyline[i]);
glEnd();
break;
}
case (D_DOUBLE_FRESNEL):
{
glLineWidth(BOUNDARY_WIDTH);
glBegin(GL_LINE_LOOP);
for (i=0; i<npolyline/2; i++) tvertex_lineto(polyline[i]);
glEnd();
glBegin(GL_LINE_LOOP);
for (i=npolyline/2; i<npolyline; i++) tvertex_lineto(polyline[i]);
glEnd();
break;
}
case (D_NOISEPANEL):
{
glLineWidth(BOUNDARY_WIDTH);
glBegin(GL_LINE_STRIP);
for (i=0; i<npolyline; i++) tvertex_lineto(polyline[i]);
glEnd();
break;
}
case (D_CIRCLES):
{
glLineWidth(BOUNDARY_WIDTH);
@ -2948,10 +3213,13 @@ void draw_billiard() /* draws the billiard boundary */
void draw_color_scheme(double x1, double y1, double x2, double y2, int plot, double min, double max)
{
int j, k, ij_botleft[2], ij_topright[2], imin, imax, jmin, jmax;
double y, dy, dy_e, rgb[3], value;
double y, dy, dy_e, rgb[3], value, lum, amp;
xy_to_ij(x1, y1, ij_botleft);
xy_to_ij(x2, y2, ij_topright);
rgb[0] = 0.0; rgb[1] = 0.0; rgb[2] = 0.0;
erase_area_rgb(0.5*(x1 + x2), x2 - x1, 0.5*(y1 + y2), y2 - y1, rgb);
if (ROTATE_COLOR_SCHEME)
{
@ -2998,20 +3266,30 @@ void draw_color_scheme(double x1, double y1, double x2, double y2, int plot, dou
}
case (P_LOG_ENERGY):
{
value = LOG_SCALE*log(dy_e*(double)(j - jmin)*100.0/E_SCALE);
value = LOG_SHIFT + LOG_SCALE*log(dy_e*(double)(j - jmin)*100.0/E_SCALE);
// if (value <= 0.0) value = 0.0;
color_scheme(COLOR_SCHEME, value, 1.0, 1, rgb);
break;
}
case (P_LOG_MEAN_ENERGY):
{
value = LOG_SCALE*log(dy_e*(double)(j - jmin)*100.0/E_SCALE);
value = LOG_SHIFT + LOG_SCALE*log(dy_e*(double)(j - jmin)*100.0/E_SCALE);
// if (value <= 0.0) value = 0.0;
color_scheme(COLOR_SCHEME, value, 1.0, 1, rgb);
break;
}
case (P_PHASE):
{
value = min + 1.0*dy*(double)(j - jmin);
color_scheme(COLOR_SCHEME, value, 1.0, 1, rgb);
// lum = (color_amplitude(value, 1.0, 1))*0.5;
// if (lum < 0.0) lum = 0.0;
// hsl_to_rgb(value*360.0, 0.9, 0.5, rgb);
// color_scheme(COLOR_SCHEME, value, 1.0, 1, rgb);
// amp = color_amplitude_linear(value, 1.0, 1);
amp = 0.5*color_amplitude_linear(value, 1.0, 1);
while (amp > 1.0) amp -= 2.0;
while (amp < -1.0) amp += 2.0;
amp_to_rgb(0.5*(1.0 + amp), rgb);
break;
}
}

43
sub_wave_comp.c
View File

@ -8,7 +8,7 @@ void init_circle_config_half(int pattern, int top, t_circle circles[NMAXCIRCLES]
/* for billiard shape D_CIRCLES */
{
int i, j, k, n, ncirc0, n_p_active, ncandidates=5000, naccepted, nnew;
double dx, dy, p, phi, r, r0, ra[5], sa[5], height, x, y = 0.0, gamma, ymean, ytop, ybottom, dpoisson = 3.05*MU;
double dx, dy, p, phi, r, r0, ra[5], sa[5], height, x, y = 0.0, gamma, ymean, ytop, ybottom, dpoisson = 3.05*MU, xmax;
short int active_poisson[NMAXCIRCLES], far;
ymean = 0.5*(YMIN + YMAX);
@ -54,6 +54,30 @@ void init_circle_config_half(int pattern, int top, t_circle circles[NMAXCIRCLES]
ncircles += NGRIDX*(NGRIDY+2)/2;
break;
}
case (C_HEX_NONUNIF):
{
dy = (YMAX - YMIN)/((double)NGRIDY);
dx = dy*0.5*sqrt(3.0);
for (i = 0; i < NGRIDX; i++)
for (j = 0; j < NGRIDY/2+2; j++)
{
n = ncircles + (NGRIDY+2)*i/2 + j;
x = ((double)(i-NGRIDX/2) + 0.5)*dy;
xmax = ((double)(NGRIDX/2) - 0.5)*dy;
if (top) circles[n].xc = x - HEX_NONUNIF_COMPRESSSION*(x*x - xmax*xmax);
else circles[n].xc = x - HEX_NONUNIF_COMPRESSSION_B*(x*x - xmax*xmax);
y = ((double)j - 0.5)*dy;
if ((i+NGRIDX)%2 == 1) y += 0.5*dy;
if (top) circles[n].yc = ymean + 0.5*dy + y;
else circles[n].yc = ymean - 0.5*dy - y;
if (top) circles[n].radius = MU;
else circles[n].radius = MUB;
circles[n].active = 1;
circletop[n] = top;
}
ncircles += NGRIDX*(NGRIDY+2)/2;
break;
}
case (C_RAND_DISPLACED):
{
dy = (YMAX - YMIN)/((double)NGRIDY);
@ -913,8 +937,11 @@ void print_energies(double energies[6], double top_energy, double bottom_energy)
{
char message[50];
double ytop, ybot, pos[2], centerx = -0.075, boxxright = XMAX - 0.17, textxright = XMAX - 0.28, boxwidth = 0.1,
boxheight = 0.05, leftboxshift = 0.185, centerboxshift = 0.085;
boxheight = 0.05, leftboxshift = 0.185, centerboxshift = 0.085, text_color;
if (BLACK_TEXT) text_color = 0.0;
else text_color = 1.0;
/* adapt sizes of text areas to high resolution */
if (WINWIDTH > 1280)
{
@ -935,42 +962,42 @@ void print_energies(double energies[6], double top_energy, double bottom_energy)
erase_area(XMIN + leftboxshift, ytop + 0.025, boxwidth, boxheight);
glColor3f(1.0, 1.0, 1.0);
glColor3f(text_color, text_color, text_color);
sprintf(message, "%.3f", energies[0]/top_energy);
xy_to_pos(XMIN + 0.1, ytop, pos);
write_text(pos[0], pos[1], message);
erase_area(centerx + centerboxshift, ytop + 0.025, boxwidth, boxheight);
glColor3f(1.0, 1.0, 1.0);
glColor3f(text_color, text_color, text_color);
sprintf(message, "%.3f", energies[1]/top_energy);
xy_to_pos(centerx, ytop, pos);
write_text(pos[0], pos[1], message);
erase_area(boxxright, ytop + 0.025, boxwidth + 0.05, boxheight);
glColor3f(1.0, 1.0, 1.0);
glColor3f(text_color, text_color, text_color);
sprintf(message, "%.5f", energies[2]/top_energy);
xy_to_pos(textxright, ytop, pos);
write_text(pos[0], pos[1], message);
erase_area(XMIN + leftboxshift, ybot + 0.025, boxwidth, boxheight);
glColor3f(1.0, 1.0, 1.0);
glColor3f(text_color, text_color, text_color);
sprintf(message, "%.3f", energies[3]/bottom_energy);
xy_to_pos(XMIN + 0.1, ybot, pos);
write_text(pos[0], pos[1], message);
erase_area(centerx + centerboxshift, ybot + 0.025, boxwidth, boxheight);
glColor3f(1.0, 1.0, 1.0);
glColor3f(text_color, text_color, text_color);
sprintf(message, "%.3f", energies[4]/bottom_energy);
xy_to_pos(centerx, ybot, pos);
write_text(pos[0], pos[1], message);
erase_area(boxxright, ybot + 0.025, boxwidth + 0.05, boxheight);
glColor3f(1.0, 1.0, 1.0);
glColor3f(text_color, text_color, text_color);
sprintf(message, "%.5f", energies[5]/bottom_energy);
xy_to_pos(textxright, ybot, pos);
write_text(pos[0], pos[1], message);

153
wave_billiard.c
View File

@ -42,55 +42,57 @@
#include <tiffio.h> /* Sam Leffler's libtiff library. */
#include <omp.h>
#define MOVIE 1 /* set to 1 to generate movie */
#define DOUBLE_MOVIE 1 /* set to 1 to produce movies for wave height and energy simultaneously */
#define MOVIE 0 /* set to 1 to generate movie */
#define DOUBLE_MOVIE 0 /* set to 1 to produce movies for wave height and energy simultaneously */
/* General geometrical parameters */
#define WINWIDTH 1920 /* window width */
#define WINHEIGHT 1000 /* window height */
#define NX 1920 /* number of grid points on x axis */
#define NY 1000 /* number of grid points on y axis */
/* uncomment for higher resolution version */
// #define WINWIDTH 1920 /* window width */
// #define WINHEIGHT 1000 /* window height */
// #define NX 1920 /* number of grid points on x axis */
// #define NY 1000 /* number of grid points on y axis */
//
// #define XMIN -2.0
// #define XMAX 2.0 /* x interval */
// #define YMIN -1.041666667
// #define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
/* comment out for higher resolution version */
#define WINWIDTH 1280 /* window width */
#define WINHEIGHT 720 /* window height */
#define NX 1280 /* number of grid points on x axis */
#define NY 720 /* number of grid points on y axis */
#define XMIN -2.0
#define XMAX 2.0 /* x interval */
#define YMIN -1.0329
#define YMAX 1.1129 /* y interval for 9/16 aspect ratio */
// #define WINWIDTH 1280 /* window width */
// #define WINHEIGHT 720 /* window height */
// #define NX 1280 /* number of grid points on x axis */
// #define NY 720 /* number of grid points on y axis */
// #define NX 2560 /* number of grid points on x axis */
// #define NY 1440 /* number of grid points on y axis */
// #define YMIN -1.125
// #define YMAX 1.125 /* y interval for 9/16 aspect ratio */
#define XMAX 2.0 /* x interval */
#define YMIN -1.125
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
#define JULIA_SCALE 1.0 /* scaling for Julia sets */
/* Choice of the billiard table */
#define B_DOMAIN 42 /* choice of domain shape, see list in global_pdes.c */
#define B_DOMAIN 41 /* choice of domain shape, see list in global_pdes.c */
#define CIRCLE_PATTERN 2 /* pattern of circles or polygons, see list in global_pdes.c */
#define CIRCLE_PATTERN 201 /* pattern of circles or polygons, see list in global_pdes.c */
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
#define NPOISSON 300 /* number of points for Poisson C_RAND_POISSON arrangement */
#define RANDOM_POLY_ANGLE 1 /* set to 1 to randomize angle of polygons */
#define LAMBDA 1.1 /* parameter controlling the dimensions of domain */
#define MU 0.4 /* parameter controlling the dimensions of domain */
#define NPOLY 14 /* number of sides of polygon */
#define APOLY -1.0 /* angle by which to turn polygon, in units of Pi/2 */
#define MDEPTH 5 /* depth of computation of Menger gasket */
#define MU 1.0 /* parameter controlling the dimensions of domain */
#define NPOLY 3 /* number of sides of polygon */
#define APOLY 0.3333333333333333 /* angle by which to turn polygon, in units of Pi/2 */
#define MDEPTH 6 /* depth of computation of Menger gasket */
#define MRATIO 3 /* ratio defining Menger gasket */
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
#define MANDELLIMIT 10.0 /* limit value for approximation of Mandelbrot set */
#define FOCI 1 /* set to 1 to draw focal points of ellipse */
#define NGRIDX 10 /* number of grid point for grid of disks */
#define NGRIDY 12 /* number of grid point for grid of disks */
#define NGRIDX 36 /* number of grid point for grid of disks */
#define NGRIDY 6 /* number of grid point for grid of disks */
#define X_SHOOTER -0.2
#define Y_SHOOTER -0.6
@ -108,16 +110,16 @@
/* Physical parameters of wave equation */
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
#define TWOSPEEDS 0 /* set to 1 to replace hardcore boundary by medium with different speed */
#define OSCILLATE_LEFT 0 /* set to 1 to add oscilating boundary condition on the left */
#define OSCILLATE_TOPBOT 0 /* set to 1 to enforce a planar wave on top and bottom boundary */
#define OMEGA 0.002 /* frequency of periodic excitation */
#define AMPLITUDE 1.0 /* amplitude of periodic excitation */
#define COURANT 0.04 /* Courant number */
#define COURANTB 0.01 /* Courant number in medium B */
#define COURANT 0.03 /* Courant number */
#define COURANTB 0.01 /* Courant number in medium B */
#define GAMMA 0.0 /* damping factor in wave equation */
#define GAMMAB 1.0e-6 /* damping factor in wave equation */
#define GAMMAB 5.0e-4 /* damping factor in wave equation */
#define GAMMA_SIDES 1.0e-4 /* damping factor on boundary */
#define GAMMA_TOPBOT 1.0e-7 /* damping factor on boundary */
#define KAPPA 0.0 /* "elasticity" term enforcing oscillations */
@ -128,20 +130,24 @@
/* Increasing COURANT speeds up the simulation, but decreases accuracy */
/* For similar wave forms, COURANT^2*GAMMA should be kept constant */
#define ADD_OSCILLATING_SOURCE 1 /* set to 1 to add an oscillating wave source */
#define OSCILLATING_SOURCE_PERIOD 100 /* period of oscillating source */
/* Boundary conditions, see list in global_pdes.c */
#define B_COND 3
#define B_COND 2
/* Parameters for length and speed of simulation */
#define NSTEPS 2100 /* number of frames of movie */
#define NSTEPS 2200 /* number of frames of movie */
// #define NSTEPS 100 /* number of frames of movie */
#define NVID 25 /* number of iterations between images displayed on screen */
#define NSEG 100 /* number of segments of boundary */
#define NSEG 1000 /* number of segments of boundary */
#define INITIAL_TIME 0 /* time after which to start saving frames */
#define BOUNDARY_WIDTH 3 /* width of billiard boundary */
#define BOUNDARY_WIDTH 1 /* width of billiard boundary */
#define PAUSE 1000 /* number of frames after which to pause */
#define PSLEEP 1 /* sleep time during pause */
#define PAUSE 200 /* number of frames after which to pause */
#define PSLEEP 2 /* sleep time during pause */
#define SLEEP1 1 /* initial sleeping time */
#define SLEEP2 1 /* final sleeping time */
#define MID_FRAMES 20 /* number of still frames between parts of two-part movie */
@ -150,28 +156,30 @@
/* Parameters of initial condition */
#define INITIAL_AMP 0.75 /* amplitude of initial condition */
#define INITIAL_VARIANCE 0.0003 /* variance of initial condition */
#define INITIAL_VARIANCE 0.00025 /* variance of initial condition */
#define INITIAL_WAVELENGTH 0.015 /* wavelength of initial condition */
/* Plot type, see list in global_pdes.c */
#define PLOT 1
#define PLOT 0
#define PLOT_B 0 /* plot type for second movie */
#define PLOT_B 5 /* plot type for second movie */
/* Color schemes */
#define COLOR_PALETTE 12 /* Color palette, see list in global_pdes.c */
#define COLOR_PALETTE 18 /* Color palette, see list in global_pdes.c */
#define BLACK 1 /* background */
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
#define SLOPE 0.2 /* sensitivity of color on wave amplitude */
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
#define E_SCALE 150.0 /* scaling factor for energy representation */
#define LOG_SCALE 2.5 /* scaling factor for energy log representation */
#define LOG_SCALE 1.5 /* scaling factor for energy log representation */
#define LOG_SHIFT 0.0 /* shift of colors on log scale */
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
@ -181,8 +189,8 @@
#define HUEAMP -180.0 /* amplitude of variation of hue for color scheme C_HUE */
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
#define COLORBAR_RANGE 6.0 /* scale of color scheme bar */
#define COLORBAR_RANGE_B 10.0 /* scale of color scheme bar for 2nd part */
#define COLORBAR_RANGE 6.0 /* scale of color scheme bar */
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
#define SAVE_TIME_SERIES 0 /* set to 1 to save wave time series at a point */
@ -592,8 +600,6 @@ void evolve_wave(double *phi[NX], double *psi[NX], double *phi_tmp[NX], double *
{
evolve_wave_half(phi, psi, phi_tmp, psi_tmp, xy_in);
evolve_wave_half(phi_tmp, psi_tmp, phi, psi, xy_in);
// evolve_wave_half_old(phi, psi, phi_tmp, psi_tmp, xy_in);
// evolve_wave_half_old(phi_tmp, psi_tmp, phi, psi, xy_in);
}
@ -601,15 +607,16 @@ void draw_color_bar(int plot, double range)
{
if (ROTATE_COLOR_SCHEME) draw_color_scheme(-1.0, -0.8, XMAX - 0.1, -1.0, plot, -range, range);
else draw_color_scheme(1.7, YMIN + 0.1, 1.9, YMAX - 0.1, plot, -range, range);
// else draw_color_scheme(1.7, YMIN + 0.25, 1.9, YMAX - 0.25, plot, -range, range);
}
void animation()
{
double time, scale, ratio, startleft[2], startright[2], sign;
double *phi[NX], *psi[NX], *phi_tmp[NX], *psi_tmp[NX], *total_energy[NX];
double time, scale, ratio, startleft[2], startright[2], sign, r2, xy[2];
double *phi[NX], *psi[NX], *phi_tmp[NX], *psi_tmp[NX], *total_energy[NX], *color_scale[NX];
short int *xy_in[NX];
int i, j, s, sample_left[2], sample_right[2];
int i, j, s, sample_left[2], sample_right[2], period = 0;
static int counter = 0;
long int wave_value;
@ -628,6 +635,7 @@ void animation()
psi_tmp[i] = (double *)malloc(NY*sizeof(double));
total_energy[i] = (double *)malloc(NY*sizeof(double));
xy_in[i] = (short int *)malloc(NY*sizeof(short int));
color_scale[i] = (double *)malloc(NY*sizeof(double));
}
/* initialise positions and radii of circles */
@ -641,6 +649,18 @@ void animation()
courant2 = COURANT*COURANT;
courantb2 = COURANTB*COURANTB;
/* initialize color scale, for option RESCALE_COLOR_IN_CENTER */
if (RESCALE_COLOR_IN_CENTER)
{
for (i=0; i<NX; i++)
for (j=0; j<NY; j++)
{
ij_to_xy(i, j, xy);
r2 = xy[0]*xy[0] + xy[1]*xy[1];
color_scale[i][j] = 1.0 - exp(-4.0*r2/LAMBDA*LAMBDA);
}
}
/* initialize wave with a drop at one point, zero elsewhere */
// init_circular_wave(0.0, -LAMBDA, phi, psi, xy_in);
@ -670,7 +690,8 @@ void animation()
// printf("Initializing wave\n");
// init_circular_wave(-1.0, 0.0, phi, psi, xy_in);
// printf("Wave initialized\n");
init_circular_wave(0.0, 0.0, phi, psi, xy_in);
init_circular_wave(0.6*cos((double)(period)*DPI/3.0), 0.6*sin((double)(period)*DPI/3.0), phi, psi, xy_in);
period++;
// for (i=0; i<3; i++)
// {
// add_circular_wave(-1.0, 0.6*cos(PID + (double)(i)*DPI/3.0), 0.6*sin(PID + (double)(i)*DPI/3.0), phi, psi, xy_in);
@ -697,7 +718,8 @@ void animation()
blank();
glColor3f(0.0, 0.0, 0.0);
// draw_wave(phi, psi, xy_in, 1.0, 0, PLOT);
draw_wave_e(phi, psi, total_energy, xy_in, 1.0, 0, PLOT);
draw_wave_e(phi, psi, total_energy, color_scale, xy_in, 1.0, 0, PLOT);
// draw_wave_highres(2, phi, psi, total_energy, xy_in, 1.0, 0, PLOT);
draw_billiard();
@ -722,7 +744,8 @@ void animation()
else scale = 1.0;
// draw_wave(phi, psi, xy_in, scale, i, PLOT);
draw_wave_e(phi, psi, total_energy, xy_in, scale, i, PLOT);
draw_wave_e(phi, psi, total_energy, color_scale, xy_in, scale, i, PLOT);
// draw_wave_highres(2, phi, psi, total_energy, xy_in, scale, i, PLOT);
for (j=0; j<NVID; j++)
{
evolve_wave(phi, psi, phi_tmp, psi_tmp, xy_in);
@ -743,10 +766,12 @@ void animation()
if (DRAW_COLOR_SCHEME) draw_color_bar(PLOT, COLORBAR_RANGE);
/* add oscillating waves */
// if (i%345 == 344)
// {
// add_circular_wave(1.0, -LAMBDA, 0.0, phi, psi, xy_in);
// }
if ((ADD_OSCILLATING_SOURCE)&&(i%OSCILLATING_SOURCE_PERIOD == OSCILLATING_SOURCE_PERIOD - 1))
{
// add_circular_wave(1.0, -1.5*LAMBDA, 0.0, phi, psi, xy_in);
add_circular_wave(-1.0, 0.6*cos((double)(period)*DPI/3.0), 0.6*sin((double)(period)*DPI/3.0), phi, psi, xy_in);
period++;
}
glutSwapBuffers();
@ -758,9 +783,10 @@ void animation()
if ((i >= INITIAL_TIME)&&(DOUBLE_MOVIE))
{
// draw_wave(phi, psi, xy_in, scale, i, PLOT_B);
draw_wave_e(phi, psi, total_energy, xy_in, scale, i, PLOT_B);
if (DRAW_COLOR_SCHEME) draw_color_bar(PLOT_B, COLORBAR_RANGE_B);
draw_wave_e(phi, psi, total_energy, color_scale, xy_in, scale, i, PLOT_B);
// draw_wave_highres(2, phi, psi, total_energy, xy_in, scale, i, PLOT_B);
draw_billiard();
if (DRAW_COLOR_SCHEME) draw_color_bar(PLOT_B, COLORBAR_RANGE_B);
glutSwapBuffers();
save_frame_counter(NSTEPS + 21 + counter);
counter++;
@ -783,7 +809,8 @@ void animation()
if (DOUBLE_MOVIE)
{
// draw_wave(phi, psi, xy_in, scale, i, PLOT);
draw_wave_e(phi, psi, total_energy, xy_in, scale, NSTEPS, PLOT);
draw_wave_e(phi, psi, total_energy, color_scale, xy_in, scale, NSTEPS, PLOT);
// draw_wave_highres(2, phi, psi, total_energy, xy_in, scale, NSTEPS, PLOT);
draw_billiard();
if (DRAW_COLOR_SCHEME) draw_color_bar(PLOT, COLORBAR_RANGE);
glutSwapBuffers();
@ -792,7 +819,8 @@ void animation()
if (DOUBLE_MOVIE)
{
// draw_wave(phi, psi, xy_in, scale, i, PLOT_B);
draw_wave_e(phi, psi, total_energy, xy_in, scale, NSTEPS, PLOT_B);
draw_wave_e(phi, psi, total_energy, color_scale, xy_in, scale, NSTEPS, PLOT_B);
// draw_wave_highres(2, phi, psi, total_energy, xy_in, scale, NSTEPS, PLOT_B);
draw_billiard();
if (DRAW_COLOR_SCHEME) draw_color_bar(PLOT_B, COLORBAR_RANGE_B);
glutSwapBuffers();
@ -809,6 +837,7 @@ void animation()
free(psi_tmp[i]);
free(total_energy[i]);
free(xy_in[i]);
free(color_scale[i]);
}
if (SAVE_TIME_SERIES)

110
wave_common.c
View File

@ -341,7 +341,92 @@ void draw_wave(double *phi[NX], double *psi[NX], short int *xy_in[NX], double sc
glEnd ();
}
void draw_wave_e(double *phi[NX], double *psi[NX], double *total_energy[NX], short int *xy_in[NX], double scale, int time, int plot)
void draw_wave_e(double *phi[NX], double *psi[NX], double *total_energy[NX], double *color_scale[NX], short int *xy_in[NX],
double scale, int time, int plot)
/* draw the field, new version with total energy option */
{
int i, j, iplus, iminus, jplus, jminus;
double rgb[3], xy[2], x1, y1, x2, y2, velocity, field_value, energy, gradientx2, gradienty2, r2;
static double dtinverse = ((double)NX)/(COURANT*(XMAX-XMIN)), dx = (XMAX-XMIN)/((double)NX);
glBegin(GL_QUADS);
// printf("dtinverse = %.5lg\n", dtinverse);
for (i=0; i<NX; i++)
for (j=0; j<NY; j++)
{
if ((TWOSPEEDS)||(xy_in[i][j]))
{
switch (plot) {
case (P_AMPLITUDE):
{
/* make wave luminosity larger inside obstacles */
field_value = phi[i][j];
if (RESCALE_COLOR_IN_CENTER)
{
field_value *= color_scale[i][j];
}
if (!(xy_in[i][j])) color_scheme_lum(COLOR_SCHEME, field_value, scale, time, 0.7, rgb);
else color_scheme(COLOR_SCHEME, field_value, scale, time, rgb);
break;
}
case (P_ENERGY):
{
energy = compute_energy(phi, psi, xy_in, i, j);
if (RESCALE_COLOR_IN_CENTER)
{
energy *= color_scale[i][j];
}
/* adjust energy to color palette */
if (COLOR_PALETTE >= COL_TURBO) color_scheme_asym(COLOR_SCHEME, energy, scale, time, rgb);
else color_scheme(COLOR_SCHEME, energy, scale, time, rgb);
break;
}
case (P_MIXED):
{
if (j > NY/2) color_scheme(COLOR_SCHEME, phi[i][j], scale, time, rgb);
else color_scheme(COLOR_SCHEME, compute_energy(phi, psi, xy_in, i, j), scale, time, rgb);
break;
}
case (P_MEAN_ENERGY):
{
energy = compute_energy(phi, psi, xy_in, i, j);
total_energy[i][j] += energy;
if (COLOR_PALETTE >= COL_TURBO)
color_scheme_asym(COLOR_SCHEME, total_energy[i][j]/(double)(time+1), scale, time, rgb);
else color_scheme(COLOR_SCHEME, total_energy[i][j]/(double)(time+1), scale, time, rgb);
break;
}
case (P_LOG_ENERGY):
{
energy = compute_energy(phi, psi, xy_in, i, j);
color_scheme(COLOR_SCHEME, LOG_SHIFT + LOG_SCALE*log(energy), scale, time, rgb);
break;
}
case (P_LOG_MEAN_ENERGY):
{
energy = compute_energy(phi, psi, xy_in, i, j);
if (energy == 0.0) energy = 1.0e-20;
total_energy[i][j] += energy;
color_scheme(COLOR_SCHEME, LOG_SHIFT + LOG_SCALE*log(total_energy[i][j]/(double)(time+1)), scale, time, rgb);
break;
}
}
glColor3f(rgb[0], rgb[1], rgb[2]);
glVertex2i(i, j);
glVertex2i(i+1, j);
glVertex2i(i+1, j+1);
glVertex2i(i, j+1);
}
}
glEnd ();
}
void draw_wave_highres(int size, double *phi[NX], double *psi[NX], double *total_energy[NX], short int *xy_in[NX], double scale, int time, int plot)
/* draw the field, new version with total energy option */
{
int i, j, iplus, iminus, jplus, jminus;
@ -352,8 +437,8 @@ void draw_wave_e(double *phi[NX], double *psi[NX], double *total_energy[NX], sho
// printf("dtinverse = %.5lg\n", dtinverse);
for (i=0; i<NX; i++)
for (j=0; j<NY; j++)
for (i=0; i<NX; i+=size)
for (j=0; j<NY; j+=size)
{
if ((TWOSPEEDS)||(xy_in[i][j]))
{
@ -391,24 +476,17 @@ void draw_wave_e(double *phi[NX], double *psi[NX], double *total_energy[NX], sho
case (P_LOG_ENERGY):
{
energy = compute_energy(phi, psi, xy_in, i, j);
color_scheme(COLOR_SCHEME, LOG_SCALE*log(energy), scale, time, rgb);
break;
}
case (P_LOG_MEAN_ENERGY):
{
energy = compute_energy(phi, psi, xy_in, i, j);
if (energy == 0.0) energy = 1.0e-20;
total_energy[i][j] += energy;
color_scheme(COLOR_SCHEME, LOG_SCALE*log(total_energy[i][j]/(double)(time+1)), scale, time, rgb);
color_scheme(COLOR_SCHEME, LOG_SHIFT + LOG_SCALE*log(energy), scale, time, rgb);
break;
}
}
glColor3f(rgb[0], rgb[1], rgb[2]);
glVertex2i(i, j);
glVertex2i(i+1, j);
glVertex2i(i+1, j+1);
glVertex2i(i, j+1);
glVertex2i(i+size, j);
glVertex2i(i+size, j+size);
glVertex2i(i, j+size);
}
}
@ -421,5 +499,3 @@ void draw_wave_e(double *phi[NX], double *psi[NX], double *total_energy[NX], sho

84
wave_comparison.c
View File

@ -44,25 +44,30 @@
#define MOVIE 0 /* set to 1 to generate movie */
#define WINWIDTH 1920 /* window width */
#define WINHEIGHT 1000 /* window height */
#define NX 1920 /* number of grid points on x axis */
#define NY 1000 /* number of grid points on y axis */
#define YMID 500 /* mid point of display */
#define XMIN -2.0
#define XMAX 2.0 /* x interval */
#define YMIN -1.041666667
#define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
#define TIME_LAPSE 1 /* set to 1 to add a time-lapse movie at the end */
#define TIME_LAPSE_FACTOR 4 /* factor of time-lapse movie */
// #define WINWIDTH 1280 /* window width */
// #define WINHEIGHT 720 /* window height */
// #define NX 1280 /* number of grid points on x axis */
// #define NY 720 /* number of grid points on y axis */
// #define YMID 360 /* mid point of display */
/* uncomment for higher resolution version */
// #define WINWIDTH 1920 /* window width */
// #define WINHEIGHT 1000 /* window height */
// #define NX 1920 /* number of grid points on x axis */
// #define NY 1000 /* number of grid points on y axis */
// #define YMID 500 /* mid point of display */
// #define XMIN -2.0
// #define XMAX 2.0 /* x interval */
// #define YMIN -1.125
// #define YMAX 1.125 /* y interval for 9/16 aspect ratio */
// #define YMIN -1.041666667
// #define YMAX 1.041666667 /* y interval for 9/16 aspect ratio */
/* comment out for higher resolution version */
#define WINWIDTH 1280 /* window width */
#define WINHEIGHT 720 /* window height */
#define NX 1280 /* number of grid points on x axis */
#define NY 720 /* number of grid points on y axis */
#define YMID 360 /* mid point of display */
#define XMIN -2.0
#define XMAX 2.0 /* x interval */
#define YMIN -1.125
#define YMAX 1.125 /* y interval for 9/16 aspect ratio */
#define JULIA_SCALE 1.0 /* scaling for Julia sets */
@ -71,24 +76,28 @@
#define B_DOMAIN 40 /* choice of domain shape, see list in global_pdes.c */
#define B_DOMAIN_B 40 /* choice of domain shape, see list in global_pdes.c */
#define CIRCLE_PATTERN 1 /* pattern of circles, see list in global_pdes.c */
#define CIRCLE_PATTERN_B 1 /* pattern of circles, see list in global_pdes.c */
#define CIRCLE_PATTERN 13 /* pattern of circles, see list in global_pdes.c */
#define CIRCLE_PATTERN_B 13 /* pattern of circles, see list in global_pdes.c */
#define P_PERCOL 0.25 /* probability of having a circle in C_RAND_PERCOL arrangement */
#define NPOISSON 300 /* number of points for Poisson C_RAND_POISSON arrangement */
#define RANDOM_POLY_ANGLE 0 /* set to 1 to randomize angle of polygons */
#define RANDOM_POLY_ANGLE_B 1 /* set to 1 to randomize angle of polygons */
#define RANDOM_POLY_ANGLE_B 0 /* set to 1 to randomize angle of polygons */
#define XDEP_POLY_ANGLE 0 /* set to 1 to rotate polygons depending on x coordinate */
#define XDEP_POLY_ANGLE_B 1 /* set to 1 to rotate polygons depending on x coordinate */
#define XDEP_POLY_ANGLE_B 0 /* set to 1 to rotate polygons depending on x coordinate */
#define POLY_ROTATION_ANGLE -0.645 /* rotation angle for |x|=1 in units of Pi/2 */
#define HEX_NONUNIF_COMPRESSSION 0.15 /* compression factor for HEX_NONUNIF pattern */
#define HEX_NONUNIF_COMPRESSSION_B -0.15 /* compression factor for HEX_NONUNIF pattern */
#define LAMBDA 0.8 /* parameter controlling the dimensions of domain */
#define MU 0.04665361 /* parameter controlling the dimensions of domain */
#define MUB 0.04665361 /* parameter controlling the dimensions of domain */
#define MU 0.035 /* parameter controlling the dimensions of domain */
#define MUB 0.035 /* parameter controlling the dimensions of domain */
// #define MU 0.04665361 /* parameter controlling the dimensions of domain */
// #define MUB 0.04665361 /* parameter controlling the dimensions of domain */
#define NPOLY 3 /* number of sides of polygon */
#define APOLY 0.0 /* angle by which to turn polygon, in units of Pi/2 */
#define APOLY_B 0.0 /* angle by which to turn polygon, in units of Pi/2 */
#define APOLY_B 2.0 /* angle by which to turn polygon, in units of Pi/2 */
#define MDEPTH 4 /* depth of computation of Menger gasket */
#define MRATIO 3 /* ratio defining Menger gasket */
#define MANDELLEVEL 1000 /* iteration level for Mandelbrot set */
@ -145,15 +154,15 @@
/* Parameters for length and speed of simulation */
// #define NSTEPS 100 /* number of frames of movie */
#define NSTEPS 3500 /* number of frames of movie */
#define NSTEPS 3700 /* number of frames of movie */
// #define NSTEPS 3300 /* number of frames of movie */
#define NVID 25 /* number of iterations between images displayed on screen */
#define NSEG 100 /* number of segments of boundary */
#define INITIAL_TIME 150 /* time after which to start saving frames */
#define COMPUTE_ENERGIES 1 /* set to 1 to compute and print energies */
#define BOUNDARY_WIDTH 2 /* width of billiard boundary */
#define PAUSE 1000 /* number of frames after which to pause */
#define PAUSE 100 /* number of frames after which to pause */
#define PSLEEP 1 /* sleep time during pause */
#define SLEEP1 1 /* initial sleeping time */
#define SLEEP2 1 /* final sleeping time */
@ -173,18 +182,21 @@
/* Color schemes */
#define COLOR_PALETTE 13 /* Color palette, see list in global_pdes.c */
#define COLOR_PALETTE 12 /* Color palette, see list in global_pdes.c */
#define BLACK 1 /* background */
#define BLACK_TEXT 1 /* set to 1 to write text in black instead of white */
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
#define SCALE 0 /* set to 1 to adjust color scheme to variance of field */
#define SLOPE 0.5 /* sensitivity of color on wave amplitude */
#define SLOPE 1.0 /* sensitivity of color on wave amplitude */
// #define SLOPE 0.75 /* sensitivity of color on wave amplitude */
#define ATTENUATION 0.0 /* exponential attenuation coefficient of contrast with time */
#define E_SCALE 2000.0 /* scaling factor for energy representation */
#define LOG_SCALE 1.5 /* scaling factor for energy log representation */
#define LOG_SHIFT 1.0 /* shift of colors on log scale */
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */
@ -194,8 +206,8 @@
#define HUEAMP -220.0 /* amplitude of variation of hue for color scheme C_HUE */
#define DRAW_COLOR_SCHEME 1 /* set to 1 to plot the color scheme */
#define COLORBAR_RANGE 100.0 /* scale of color scheme bar */
#define COLORBAR_RANGE_B 12.0 /* scale of color scheme bar for 2nd part */
#define COLORBAR_RANGE 30.0 /* scale of color scheme bar */
#define COLORBAR_RANGE_B 30.0 /* scale of color scheme bar for 2nd part */
#define ROTATE_COLOR_SCHEME 0 /* set to 1 to draw color scheme horizontally */
@ -704,8 +716,17 @@ void animation()
if (MOVIE)
{
if (i >= INITIAL_TIME) save_frame();
if (i >= INITIAL_TIME)
{
save_frame();
if ((TIME_LAPSE)&&((i - INITIAL_TIME)%TIME_LAPSE_FACTOR == 0))
{
save_frame_counter(NSTEPS + END_FRAMES + (i - INITIAL_TIME)/TIME_LAPSE_FACTOR);
}
}
else printf("Initial phase time %i of %i\n", i, INITIAL_TIME);
/* it seems that saving too many files too fast can cause trouble with the file system */
/* so this is to make a pause from time to time - parameter PAUSE may need adjusting */
@ -722,6 +743,7 @@ void animation()
if (MOVIE)
{
for (i=0; i<END_FRAMES; i++) save_frame();
if (TIME_LAPSE) for (i=0; i<END_FRAMES; i++) save_frame_counter(NSTEPS + END_FRAMES + NSTEPS/TIME_LAPSE_FACTOR + i);
s = system("mv wave*.tif tif_wave/");
}
for (i=0; i<NX; i++)

4
wave_energy.c
View File

@ -78,6 +78,8 @@
#define XDEP_POLY_ANGLE 0 /* set to 1 to rotate polygons depending on x coordinate */
#define XDEP_POLY_ANGLE_B 1 /* set to 1 to rotate polygons depending on x coordinate */
#define POLY_ROTATION_ANGLE -0.645 /* rotation angle for |x|=1 in units of Pi/2 */
#define HEX_NONUNIF_COMPRESSSION 0.15 /* compression factor for HEX_NONUNIF pattern */
#define HEX_NONUNIF_COMPRESSSION_B -0.15 /* compression factor for HEX_NONUNIF pattern */
#define LAMBDA 0.75 /* parameter controlling the dimensions of domain */
#define MU 0.03 /* parameter controlling the dimensions of domain */
@ -164,6 +166,7 @@
#define COLOR_PALETTE 14 /* Color palette, see list in global_pdes.c */
#define BLACK 1 /* background */
#define BLACK_TEXT 0 /* set to 1 to write text in black instead of white */
#define COLOR_SCHEME 3 /* choice of color scheme, see list in global_pdes.c */
@ -173,6 +176,7 @@
#define E_SCALE 500.0 /* scaling factor for energy representation */
#define LOG_SCALE 1.5 /* scaling factor for energy log representation */
#define LOG_SHIFT 1.0 /* shift of colors on log scale */
#define RESCALE_COLOR_IN_CENTER 0 /* set to 1 to decrease color intentiy in the center (for wave escaping ring) */
#define COLORHUE 260 /* initial hue of water color for scheme C_LUM */
#define COLORDRIFT 0.0 /* how much the color hue drifts during the whole simulation */