HOME > 紫 > Asymptote ＜ > Asymptote ＜∵
Asymptote ＜∵
path 蕋∽
吾牙с祉違＜潟篏潟t 0 1 障у篏潟ゃ障祉違＜潟綏劻若祉違＜潟潟潟若ゃ潟違 t 筝祉違＜潟筝筝鴻劫с
鐚t 違http://ja.wikipedia.org/wiki/%E3%83%99%E3%82%B8%E3%82%A7%E6%9B%B2%E7%B7%9A 篏恰с荀鐚
asymptote path ∽違сpath 筝筝鴻劫 t ≦宍 path time 紊違篏帥絎違с違path time 7.3 с違7 ょ若 8 ょ若障祉違＜潟筝t=0.3 鴻緇桁сpath time 8 贋違с違＜ 9 若
| int length(path) | 祉違＜潟違菴 |
| int size(path) | 若違菴 |
| pair point(path p, int n) | n 若菴 |
| pair point(path p, real u) | u 7.3 筝7 若 8 若祉違＜潟筝t=0.3 鴻緇t 吾牙ゃ 0 篁ヤ 1 篁ヤу≪с潟吟u 贋違∽違腟 |
point ∽違∝純с絨с帥
picture1 綣ссpicture2 сt 0 10 膀蚊у紊сpicture1 с鴻 p(t) ｃ膈picture2 翫膈
| pair dir(path, int n); | n 若･膩劫ゅ篏菴鴻劫綵演帥 |
| pair dir(path, real u) | path time u х劫鴻с･膩劫篏菴鴻劫綵演帥 |
unitcircle path time = 1.5 贋ф･√違吾帥
size(5cm); path mypath = unitcircle; pair mypnt=point(mypath, 1.5); pair mydir=dir(mypath, 1.5); draw(mypath); draw(mypnt--mypnt+mydir, arrow=EndArrow);
| pair precontrol(path, int n) | n 若祉潟潟若祉ゃ潟菴 |
| pair precontrol(path, real u) | u 7.3 筝7 若 8 若祉違＜潟筝t=0.3 鴻緇若菴遵翫綽荀祉潟潟若祉ゃ潟菴t 吾牙ゃ 0 篁ヤ 1 篁ヤу≪с |
| pair postcontrol(path, int n) | 篋罧灸腓冴∽違鴻祉潟潟若祉ゃ潟 |
| pair postcontrol(path, real u) | 篋罧灸腓冴∽違鴻祉潟潟若祉ゃ潟 |
unitcircle 潟潟若祉ゃ潟茵腓冴帥
size(5cm);
path mypath=unitcircle;
draw(mypath);
for(int i=0; i < size(mypath); ++i) {
pair nod=point(mypath, i);
dot(nod, red);
pair prec=precontrol(mypath, i);
pair posc=postcontrol(mypath, i);
dot(prec, blue);
dot(posc, blue);
draw(nod--prec, blue);
draw(nod--posc, blue);
}
| arclength(path) | 鴻羃帥ｃ羝ｃ劫篏激picture 泣ゃ冴綵演帥 |
| real arctime(path, real L) | 紮鴻鴻羃帥ｃ羝ｃ鐚picture 泣ゃ冴綵演帥鐚激L 鴻path time ц |
| real dirtime(path, pair z) | z хず劫雁 path ･鴻 path time ц |
篏 unitcircle 障 (1,1) ･膩綣帥dirtime 篏帥(1,1) 劫ょ雁 unitcircle ･ t 緇 t point 篏帥ｃ･鴻緇帥
size(5cm); pair mydir=(1,1); path mypath=unitcircle; real mytime=dirtime(mypath,mydir); pair mypoint=point(mypath,mytime); draw(unitcircle); dot(mypoint); draw(shift(mypoint)*rotate(mydir)*(W--E),red);
| path reverse(path p) | 劫荵≪鴻菴 |
| path subpath(path p, int n, int m) | n 若 m 若潟泣鴻菴n > m 翫劫荵≪泣鴻菴 |
| path subpath(path p, real a, real b) | 筝∽違 path time |
| pair intersect(path p, path q, real fuzz=0) | p q 篋ょ q q path time p path time 菴fuzz 荐怨鴻茯ゅ勲с 0 潟潟ャ若帥茯ゅ勲篏帥篋ょ鴻 (-1,-1) 菴 |
| pair intersectionpoint(path p, path q, real fuzz=0) | p q 篋ょ鴻茯ゅ勲 fuzz 障ф菴point(p,intersect(p,q,fuzz).x) |
| slice firstcut(path p, path q) | p q 篋ょ鴻羆 p 紮鴻篋ょ鴻障с泣鴻潟篋ょ鴻 p 腟鴻障с篋ゃ泣鴻菴祉ゃ罕篏 slice slice s=firstcut(unitcircle, unitsquare); 違s.before т困鴻泣鴻s.after т困鴻緇泣鴻緇 |
| slice lastcut(path p, path q) | 筝∽違緇篋ょ鴻 |
30 綺 90 綺障с綣с帥
path mypath=unitcircle;
path buildcycle(... path[] g)
茲違鴻蚊障菴＜ゃ違ｃ篏腆肴с
pair min(path)
鴻傑劫就綏筝綺ф菴
pair max(path)
鴻傑劫就劽綺ф菴
bool cyclic(path)
鴻
bool straight(path, int i)
若 i 若 i+1 祉違＜潟ｇ眼с
bool inside(path g, pair z, pen p=currentpen)
ｃ若ｃ z g 眼