Slika:GreatStellatedDodecahedron.jpg
Vsebina strani ni podprta v drugih jezikih.
Iz Wikipedije, proste enciklopedije
Velikost tega predogleda: 644 × 599 točk. Druge ločljivosti: 258 × 240 točk | 516 × 480 točk | 853 × 794 točk.
Izvorna datoteka (853 × 794 točk, velikost datoteke: 231 KB, MIME-vrsta: image/jpeg)
Spodaj prikazane informacije so s tamkajšnje opisne strani.
Povzetek
OpisGreatStellatedDodecahedron.jpg |
English: Great stellated dodecahedron, rendered with POVRay Ta slika je bila ustvarjena z POV-Ray. |
Vir | lastno delo |
Avtor | User Cyp |
Ta slika je bila naložena v formatu JPEG, čeprav sestoji iz nefotografskih podatkov. Te informacije bi bile bolj učinkovito ali natančno shranjene v formatu PNG ali SVG. Če je mogoče, naložite različico PNG ali SVG te slike brez artefaktov stiskanja, izpeljanih iz ne-JPEG vira (ali z odstranjenimi obstoječimi artefakti). Ko boste to storili, označite JPEG različico z {{Superseded|NewImage.ext}} in to oznako odstranite.. Ta oznaka naj se ne uporablja za fotografije ali preslikave. Za več informacij glejte {{BadJPEG}}. |
Licenca
Jaz, imetnik avtorskih pravic na tem delu, ga s tem objavljam pod naslednjimi licencami:
Ta dokument je dovoljeno kopirati, razširjati in/ali spreminjati pod pogoji Licence GNU za prosto dokumentacijo, različica 1.2 ali katera koli poznejša, ki jo je objavila ustanova Free Software Foundation; brez nespremenljivih delov ter brez besedil na sprednji ali zadnji platnici. Kopija licence je vključena v razdelek Licenca GNU za prosto dokumentacijo.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
Datoteka je objavljena pod licenco Creative Commons Priznanje avtorstva-Deljenje pod enakimi pogoji 3.0 Nedoločena. | ||
| ||
Ta oznaka dovoljenja je bila datoteki dodana kot del posodobitve licence GFDL.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Datoteka je objavljena pod licencami Creative Commons Priznanje avtorstva-Deljenje pod enakimi pogoji 2.5 Generična, 2.0 Generična in 1.0 Generična.
- Dovoljeno vam je:
- deljenje – reproducirati, distribuirati in javno priobčevati delo
- predelava – predelati delo
- Pod naslednjimi pogoji:
- priznanje avtorstva – Navesti morate ustrezno avtorstvo, povezavo do licence in morebitne spremembe. To lahko storite na kakršen koli primeren način, vendar ne na način, ki bi nakazoval, da dajalec licence podpira vas ali vašo uporabo dela.
- deljenje pod enakimi pogoji – Če boste to vsebino predelali, preoblikovali ali uporabili kot izhodišče za drugo delo, morate svoj prispevek distribuirati pod enako ali združljivo licenco, kot jo ima izvirnik.
Izberete lahko licenco po svoji izbiri.
Source
//GPL #include <stdio.h> #include <math.h> #include <vector> using std::vector; const char *theader = "//Picture *** Use flashiness=1 !!! ***\n//\n// +w1024 +h1024 +a0.3 +am2\n// +w512 +h512 +a0.3 +am2\n//\n//Movie *** Use flashiness=0.25 !!! ***\n//\n// +kc +kff120 +w256 +h256 +a0.3 +am2\n// +kc +kff60 +w256 +h256 +a0.3 +am2\n//\"Fast\" preview\n// +w128 +h128\n#declare notwireframe=1;\n#declare withreflection=0;\n#declare flashiness=1; //Still pictures use 1, animated should probably be about 0.25.\n\n#declare rotation=seed(%d);\n\n#declare rot1=rand(rotation)*pi*2;\n#declare rot2=acos(1-2*rand(rotation));\n#declare rot3=(rand(rotation)+clock)*pi*2;\n#macro dorot()\n rotate rot1*180/pi*y\n rotate rot2*180/pi*x\n rotate rot3*180/pi*y\n#end\n\n"; const char *tline = "object {\n cylinder { <%lf,%lf,%lf>, <%lf,%lf,%lf>, .01 dorot() }\n pigment { colour <.3,.3,.3> }\n finish { ambient 0 diffuse 1 phong 1 }\n}\n\n"; const char *tvertex = "object {\n sphere { <%lf,%lf,%lf>, .01 dorot() }\n pigment { colour <.3,.3,.3> }\n finish { ambient 0 diffuse 1 phong 1 }\n}\n\n"; const char *tstartmesh = "object {\n mesh {\n"; const char *ttriangle = " triangle {\n <%lf,%lf,%lf>, <%lf,%lf,%lf>, <%lf,%lf,%lf>\n }\n"; const char *tendmesh = " //sphere { <0,0,0>, 1 }\n //sphere { <0,0,0>, ld+.01 inverse }\n dorot()\n }\n pigment { colour rgbt <.8,.8,.8,.4> }\n finish { ambient 0 diffuse 1 phong flashiness #if(withreflection) reflection { .2 } #end }\n //interior { ior 1.5 }\n photons {\n target on\n refraction on\n reflection on\n collect on\n }\n}\n\n"; const char *tfooter = "// CCC Y Y PP\n// C Y Y P P\n// C Y PP\n// C Y P\n// CCC Y P\n\n#local a=0;\n#while(a<11.0001)\n light_source { <4*sin(a*pi*2/11), 5*cos(a*pi*6/11), -4*cos(a*pi*2/11)> colour (1+<sin(a*pi*2/11),sin(a*pi*2/11+pi*2/3),sin(a*pi*2/11+pi*4/3)>)*2/11 }\n #local a=a+1;\n#end\n\nbackground { color <1,1,1> }\n\ncamera {\n perspective\n location <0,0,0>\n direction <0,0,1>\n right x/2\n up y/2\n sky <0,1,0>\n location <0,0,-4.8>\n look_at <0,0,0>\n}\n\nglobal_settings {\n max_trace_level 40\n photons {\n count 200000\n autostop 0\n }\n}\n"; #define PHI ((1+sqrt(5))/2) #define PI (3.14159265358979323846264338327) #define SQ2 (sqrt(2)) #define SQ3 (sqrt(3)) bool eq(double a, double b) { return a+0.00001>=b&&b+0.00001>=a; } bool eqt(double a1, double a2, double a3, double b1, double b2, double b3) { //printf("Tri: {%lf, %lf, %lf}, {%lf, %lf, %lf}\n", a1, a2, a3, b1, b2, b3); return eq(a1, b1)? eq(a2, b2)? eq(a3, b3):eq(a2, b3)&&eq(a3, b2):eq(a1, b2)? eq(a2, b3)? eq(a3, b1):eq(a2, b1)&&eq(a3, b3):eq(a1, b3)&&(eq(a2, b1)? eq(a3, b2):eq(a2, b3)&&eq(a3, b2)); } class vec { public: double x, y, z; vec() : x(0), y(0), z(0) {} vec(double nx, double ny, double nz) : x(nx), y(ny), z(nz) {} vec operator + (vec o) { return vec(x+o.x, y+o.y, z+o.z); } vec operator - (vec o) { return vec(x-o.x, y-o.y, z-o.z); } double operator * (vec o) { return x*o.x+y*o.y+z*o.z; } vec operator * (double o) { return vec(x*o, y*o, z*o); } vec operator ^ (vec o) { return vec(y*o.z-z*o.y, z*o.x-x*o.z, x*o.y-y*o.x); } double norm() { return sqrt(x*x+y*y+z*z); } }; class vec2 { public: double x, y; vec2() {} vec2(double nx, double ny) : x(nx), y(ny) {} vec2 operator + (vec2 o) { return vec2(x+o.x, y+o.y); } vec2 operator - (vec2 o) { return vec2(x-o.x, y-o.y); } double operator * (vec2 o) { return x*o.x+y*o.y; } vec2 operator * (double o) { return vec2(x*o, y*o); } vec2 operator ~ () { return vec2(y, -x); } double norm() { return sqrt(x*x+y*y); } }; vector<vec> cyclicperm(vector<vec> v) { vector<vec> r; vector<vec>::iterator i; for(i = v.begin(); i!=v.end(); ++i) { r.push_back(*i); r.push_back(vec(i->y, i->z, i->x)); r.push_back(vec(i->z, i->x, i->y)); } return r; } vector<vec> altperm(vector<vec> v) { vector<vec> r; vector<vec>::iterator i; for(i = v.begin(); i!=v.end(); ++i) { r.push_back(*i); r.push_back(vec(i->x, i->z, i->y)); } return r; } vector<vec> signperm(vector<vec> v) { vector<vec> r; vector<vec>::iterator i; for( i = v.begin(); i!=v.end(); ++i ) { int j; for(j = 0; j<8; ++j) if(((j&1)||i->x)&&((j&2)||i->y)&&((j&4)||i->z)) r.push_back(vec(j&1? i->x:-i->x, j&2? i->y:-i->y, j&4? i->z:-i->z)); } return r; } vector<vec> mvvec(double x, double y, double z) { vector<vec> v; v.push_back(vec(x, y, z)); return v; } vector<vec> mvvec(vec q) { vector<vec> v; v.push_back(q); return v; } vector<vec> concat(const vector<vec> a, const vector<vec> b) { vector<vec> r; r = a; r.insert(r.end(), b.begin(), b.end()); return r; } void printvvec(FILE *f, vector<vec> v) { vector<vec>::iterator i; for(i = v.begin(); i!=v.end(); ++i) fprintf(f, tvertex, i->x, i->y, i->z); } void printvveclines(FILE *f, vector<vec> v, double len) { vector<vec>::iterator i, j; len *= len; for(i = v.begin(); i!=v.end(); ++i) for(j = i+1; j!=v.end(); ++j) if(eq((*i-*j)*(*i-*j), len)) fprintf(f, tline, i->x, i->y, i->z, j->x, j->y, j->z); } void printvveclines(FILE *f, vector<vec> v) { vector<vec>::iterator i; for(i = v.begin(); i!=v.end(); i += 2) fprintf(f, tline, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z); } void printvvecdottedlines(FILE *f, vector<vec> v) { vector<vec>::iterator i; int n, m; double s; for(i = v.begin(); i!=v.end(); i += 2) // for(i = v.begin(); i!=v.begin()+12; i += 2) { s = (*i-*(i+1)).norm(); m = (int)(s/0.04+.5); s = 1./(double)m; for(n = 1; n<m; ++n) { vec c = *i+(*(i+1)-*i)*(s*n); fprintf(f, tvertex, c.x, c.y, c.z); } } } void printvvectriangles(FILE *f, vector<vec> v, double len1, double len2, double len3) { vector<vec>::iterator i, j, k; len1 *= len1; len2 *= len2; len3 *= len3; for(i = v.begin(); i!=v.end(); ++i) for(j = i+1; j!=v.end(); ++j) for(k = j+1; k!=v.end(); ++k) if(eqt((*i-*j)*(*i-*j), (*j-*k)*(*j-*k), (*k-*i)*(*k-*i), len1, len2, len3)) fprintf(f, ttriangle, i->x, i->y, i->z, j->x, j->y, j->z, k->x, k->y, k->z); } void printvvectriangles(FILE *f, vector<vec> v) { vector<vec>::iterator i; for(i = v.begin(); i!=v.end(); i += 3) //i = v.begin(); fprintf(f, ttriangle, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z, (i+2)->x, (i+2)->y, (i+2)->z); /*i += 3; fprintf(f, ttriangle, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z, (i+2)->x, (i+2)->y, (i+2)->z); i += 3; fprintf(f, ttriangle, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z, (i+2)->x, (i+2)->y, (i+2)->z); i += 3; fprintf(f, ttriangle, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z, (i+2)->x, (i+2)->y, (i+2)->z); i += 3; fprintf(f, ttriangle, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z, (i+2)->x, (i+2)->y, (i+2)->z); i += 3; fprintf(f, ttriangle, i->x, i->y, i->z, (i+1)->x, (i+1)->y, (i+1)->z, (i+2)->x, (i+2)->y, (i+2)->z); */} void SmallStellatedDodecahedron() { vector<vec> v; v = cyclicperm(signperm(mvvec(vec(0, PHI, 1)*(1/sqrt(PHI+2))))); FILE *f; f = fopen("SmallStellatedDodecahedron.pov", "wb"); fprintf(f, theader, 22491); printvvec(f, v); printvveclines(f, v, 2*PHI*(1/sqrt(PHI+2))); fprintf(f, tstartmesh); v = concat(v, cyclicperm(signperm(mvvec(vec(0, 2-PHI, 1)*(1/sqrt(PHI+2)))))); v = concat(v, signperm(mvvec(vec(PHI-1, PHI-1, PHI-1)*(1/sqrt(PHI+2))))); printvvectriangles(f, v, (2*PHI-2)*(1/sqrt(PHI+2)), (2*PHI-2)*(1/sqrt(PHI+2)), (4-2*PHI)*(1/sqrt(PHI+2))); fprintf(f, tendmesh); fprintf(f, tfooter); fclose(f); } void GreatStellatedDodecahedron() { vector<vec> v; v = concat(signperm(mvvec(vec(1, 1, 1)*(1/SQ3))), cyclicperm(signperm(mvvec(vec(0, PHI, 1/PHI)*(1/SQ3))))); FILE *f; f = fopen("GreatStellatedDodecahedron.pov", "wb"); fprintf(f, theader, 7409);//7412); printvvec(f, v); printvveclines(f, v, 2*PHI*(1/SQ3)); fprintf(f, tstartmesh); v = concat(v, cyclicperm(signperm(mvvec(vec(0, 2-PHI, PHI-1)*(1/SQ3))))); printvvectriangles(f, v, (2*PHI-2)*(1/SQ3), (2*PHI-2)*(1/SQ3), (4-2*PHI)*(1/SQ3)); fprintf(f, tendmesh); fprintf(f, tfooter); fclose(f); } void GreatDodecahedron() { vector<vec> v; v = cyclicperm(signperm(mvvec(vec(0, PHI, 1)*(1/sqrt(PHI+2))))); FILE *f; f = fopen("GreatDodecahedron.pov", "wb"); fprintf(f, theader, 11404); printvveclines(f, v, 2*(1/sqrt(PHI+2))); v = concat(v, concat(signperm(mvvec(vec(PHI-1, PHI-1, PHI-1)*(1/sqrt(PHI+2)))), cyclicperm(signperm(mvvec(vec(0, 2-PHI, 1)*(1/sqrt(PHI+2))))))); printvvec(f, v); fprintf(f, tstartmesh); printvvectriangles(f, v, (2*PHI-2)*(1/sqrt(PHI+2)), (2*PHI-2)*(1/sqrt(PHI+2)), (2)*(1/sqrt(PHI+2))); fprintf(f, tendmesh); fprintf(f, tfooter); fclose(f); } vector<vec> IcosaParse(const char *vs) { vector<vec> v, p; v = cyclicperm(signperm(mvvec(vec(0, PHI, 1)))); vec av; vector<vec>::iterator i, j, k; int q; static const vec2 rats[9] = {vec2(1, 0), vec2(PHI-1, 2-PHI), vec2(2-PHI, PHI-1), vec2(0, 1), vec2(0, PHI-1), vec2(0, 2-PHI), vec2(0, 0), vec2(2-PHI, 0), vec2(PHI-1, 0)}; for(i = v.begin(); i!=v.end(); ++i) for(j = v.begin(); j!=v.end(); ++j) for(k = v.begin(); k!=v.end(); ++k) if(eqt((*i-*j).norm(), (*j-*k).norm(), (*k-*i).norm(), 2, 2, 2)&&(*i^*j)**k>0) { vec t3 = *i*PHI*PHI+*j*PHI*PHI-*k*PHI*PHI*PHI, t1 = *j*PHI*PHI+*k*PHI*PHI-*i*PHI*PHI*PHI, t2 = *k*PHI*PHI+*i*PHI*PHI-*j*PHI*PHI*PHI; for(q = 0; vs[q]; ) { if(vs[q]<48) break; if(vs[q+1]<48) { p = concat(p, mvvec(t3+(t1-t3)*rats[vs[q]-'0'].x+(t2-t3)*rats[vs[q]-'0'].y)); q += 2; continue; } if(vs[q+4]<48) { vec2 a = rats[vs[q]-'0'], b = rats[vs[q+1]-'0'], c = rats[vs[q+2]-'0'], d = rats[vs[q+3]-'0']; double idet = 1/((a-b).x*(d-c).y-(a-b).y*(d-c).x); //fprintf(stderr, "%lf, %lf %lf, %lf %lf\n", (a-b).x, (d-c).x, (a-b).y, (d-c).y, idet); vec2 e = vec2(vec2((d-c).y, (d-c).x*-1)*(d-b), vec2((a-b).y*-1, (a-b).x)*(d-b))*idet; vec2 r = (a-b)*e.x+b; //fprintf(stderr, "%lf, %lf %lf, %lf %lf\n", r.x, r.y, t1.x, t1.y, idet); //fprintf(stderr, "(a-b)={%lf, %lf}, x=%lf, b={%lf, %lf}, e={%lf, %lf}\n(c-d)={%lf, %lf}, y=%lf, d={%lf, %lf}, e={%lf, %lf}\n", //(a-b).x, (a-b).y, e.x, b.x, b.y, ((a-b)*e.x+b).x, ((a-b)*e.x+b).y, //(c-d).x, (c-d).y, e.y, d.x, d.y, ((c-d)*e.y+d).x, ((c-d)*e.y+d).y //); //fprintf(stderr, "%lf %lf\n", r.x, r.y); p = concat(p, mvvec(t3+(t1-t3)*r.x+(t2-t3)*r.y)); av = av+(t3+(t1-t3)*r.x+(t2-t3)*r.y); //p = concat(p, mvvec(vec())); q += 5; continue; } break; } } //printf("%lf %lf %lf\n", av.x, av.y, av.z); double r = 0; for(i = p.begin(); i!=p.end(); ++i) //i = p.begin(); if(r<i->norm()) r = i->norm(); for(i = p.begin(); i!=p.end(); ++i) *i = *i*(1/r); return p; } void StellatedIcosahedron(const char *fn, int rs, const char *vs, const char *ls, const char *dls, const char *ts) { vector<vec> v; FILE *f; f = fopen(fn, "wb"); fprintf(f, theader, rs); printvvec(f, IcosaParse(vs)); printvvecdottedlines(f, IcosaParse(dls)); printvveclines(f, IcosaParse(ls)); fprintf(f, tstartmesh); printvvectriangles(f, IcosaParse(ts)); fprintf(f, tendmesh); fprintf(f, tfooter); fclose(f); } int main() { SmallStellatedDodecahedron(); GreatStellatedDodecahedron(); GreatDodecahedron(); StellatedIcosahedron("GreatIcosahedron.pov", 31234, "0 1 2 0417 1428 2538 ", "0 3 ", "0 0417 0417 1 1 1428 1428 2 2 2538 2538 3 ", "0 1 0417 1 2 1428 2 3 2538 "); StellatedIcosahedron("CompoundOfFiveTetrahedra.pov", 22113, "2 2514 1427 2715 1528 ", "2 5 ", "2 2 2514 1427 1427 2715 2715 1528 ", "2 2514 1427 2 2715 1528 "); return 0; }
Predmeti, prikazani v tej datoteki
motiv
Neka vrednost brez predmeta Wikipodatki
Zgodovina datoteke
Kliknite datum in čas za ogled datoteke, ki je bila takrat naložena.
Datum in čas | Sličica | Velikost | Uporabnik | Komentar | |
---|---|---|---|---|---|
trenutno | 22:15, 19. december 2005 | 853 × 794 (231 KB) | Cyp | Replacing missing pixels - cropped too small by one pixel on each edge. | |
22:30, 17. december 2005 | 851 × 792 (231 KB) | Cyp | Great stellated dodecahedron, rendered with POVRay |
Uporaba datoteke
Datoteka je del naslednjih 4 strani slovenske Wikipedije (strani drugih projektov niso navedene):
Globalna uporaba datoteke
To datoteko uporabljajo tudi naslednji vikiji:
- Uporaba na as.wikipedia.org
- Uporaba na bn.wikipedia.org
- Uporaba na ca.wikipedia.org
- Uporaba na cy.wikipedia.org
- Uporaba na el.wikipedia.org
- Uporaba na en.wikipedia.org
- Uporaba na eo.wikipedia.org
- Uporaba na es.wikipedia.org
- Uporaba na eu.wikipedia.org
- Uporaba na fi.wikipedia.org
- Uporaba na fr.wikipedia.org
- Uporaba na id.wikipedia.org
- Uporaba na it.wikipedia.org
- Uporaba na ja.wikipedia.org
- Uporaba na ko.wikipedia.org
- Uporaba na no.wikipedia.org
- Uporaba na pt.wikipedia.org
- Uporaba na ro.wikipedia.org
- Uporaba na ru.wikipedia.org
- Uporaba na sq.wikipedia.org
- Uporaba na sr.wikipedia.org
Oglejte si globalno uporabo te datoteke.
Metapodatki
Datoteka vsebuje še druge podatke, ki jih je verjetno dodal za njeno ustvaritev oziroma digitalizacijo uporabljeni fotografski aparat ali optični bralnik. Če je bila datoteka pozneje spremenjena, podatki sprememb morda ne izražajo popolnoma.
_error | 0 |
---|
Pridobljeno iz »https://sl.wikipedia.org/wiki/Slika:GreatStellatedDodecahedron.jpg«