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DeskribapenaGreatStellatedDodecahedron.jpg	English: Great stellated dodecahedron, rendered with POVRay   Fitxategi hau (irudia) hau POV-Ray-ekin sortu da . .
Jatorria	Norberak egina
Egilea	User Cyp

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Lizentzia

Nik, lan honen egileak, argitaratzen dut ondorengo lizentzia hauen pean:

Baimena duzu dokumentu hau kopiatu, banatu edo/eta aldatzeko GNU Free Documentation License baldintzapean, Free Software Foundationek argitaratutako 1.2 edo ondorengo bertsioan; sekzio aldaezinik gabe, azaleko testurik gabe, eta atzeko azaleko testurik gabe. Lizentziaren kopia dago GNU Free Documentation License izenburudun atalean.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

	Fitxategi hau Creative Commons Attribution-Share Alike 3.0 Unported lizentziapean dago.
	Askea zara: partekatzeko – lana kopiatzeko, banatzeko eta bidaltzeko birnahasteko – lana moldatzeko Ondorengo baldintzen pean: eskuduntza – Egiletza behar bezala aitortu behar duzu, lizentzia ikusteko esteka gehitu, eta ea aldaketak egin diren aipatu. Era egokian egin behar duzu hori guztia, baina inola ere ez egileak zure lana edo zure erabilera babesten duela irudikatuz. berdin partekatu – Lan honetan oinarrituta edo aldatuta berria eraikitzen baduzu, emaitza lana hau bezalako lizentzia batekin argitaratu behar duzu.
	This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

This file is licensed under the Creative Commons Attribution-Share Alike 2.5 Generic, 2.0 Generic and 1.0 Generic license.

Askea zara:

• partekatzeko – lana kopiatzeko, banatzeko eta bidaltzeko
• birnahasteko – lana moldatzeko

Ondorengo baldintzen pean:

• eskuduntza – Egiletza behar bezala aitortu behar duzu, lizentzia ikusteko esteka gehitu, eta ea aldaketak egin diren aipatu. Era egokian egin behar duzu hori guztia, baina inola ere ez egileak zure lana edo zure erabilera babesten duela irudikatuz.
• berdin partekatu – Lan honetan oinarrituta edo aldatuta berria eraikitzen baduzu, emaitza lana hau bezalako lizentzia batekin argitaratu behar duzu.

https://creativecommons.org/licenses/by-sa/2.5CC BY-SA 2.5 Creative Commons Attribution-Share Alike 2.5 truetrue

Nahiago duzun lizentzia erabil dezakezu.

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;
}