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This commit is contained in:
nilsberglund-orleans
2021-06-20 23:31:23 +02:00
committed by GitHub
parent bd6aa073a7
commit 279a6e8801
7 changed files with 2149 additions and 141 deletions

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@@ -198,6 +198,7 @@ void write_text( double x, double y, char *st)
/*********************/
/* some basic math */
/*********************/
@@ -296,6 +297,22 @@ double xy[2];
xy[1] = YMIN + ((double)j)*(YMAX-YMIN)/((double)NY);
}
void draw_rectangle(x1, y1, x2, y2)
double x1, y1, x2, y2;
{
double pos[2];
glBegin(GL_LINE_LOOP);
xy_to_pos(x1, y1, pos);
glVertex2d(pos[0], pos[1]);
xy_to_pos(x2, y1, pos);
glVertex2d(pos[0], pos[1]);
xy_to_pos(x2, y2, pos);
glVertex2d(pos[0], pos[1]);
xy_to_pos(x1, y2, pos);
glVertex2d(pos[0], pos[1]);
glEnd();
}
@@ -303,7 +320,7 @@ int xy_in_billiard(x, y)
/* returns 1 if (x,y) represents a point in the billiard */
double x, y;
{
double l2, r2, omega, c, angle, z;
double l2, r2, r2mu, omega, c, angle, z, x1, y1, u, v, u1, v1;
int i, k, k1, k2, condition;
switch (B_DOMAIN) {
@@ -399,6 +416,124 @@ double x, y;
{
return(((x-1.0)*(x-1.0) + y*y < LAMBDA*LAMBDA)||((x+1.0)*(x+1.0) + y*y < LAMBDA*LAMBDA)||((vabs(x) < 1.0)&&(vabs(y) < MU)));
}
case D_MENGER:
{
x1 = 0.5*(x+1.0);
y1 = 0.5*(y+1.0);
for (k=0; k<MDEPTH; k++)
{
x1 = x1*(double)MRATIO;
y1 = y1*(double)MRATIO;
if ((vabs(x)<1.0)&&(vabs(y)<1.0)&&(((int)x1 % MRATIO)==MRATIO/2)&&(((int)y1 % MRATIO)==MRATIO/2)) return(0);
}
return(1);
}
case D_JULIA_INT:
{
u = x/JULIA_SCALE;
v = y/JULIA_SCALE;
i = 0;
while ((i<MANDELLEVEL)&&(u*u+v*v < 1000.0*MANDELLIMIT))
{
u1 = u*u - v*v + julia_x;
v = 2.0*u*v + julia_y;
u = u1;
i++;
}
if (u*u + v*v < MANDELLIMIT) return(1);
else return(0);
}
case D_ANNULUS_HEATED: /* returns 2 if in inner circle */
{
l2 = LAMBDA*LAMBDA;
r2 = x*x + y*y;
r2mu = (x-MU)*(x-MU) + y*y;
if ((r2mu > l2)&&(r2 < 1.0)) return(1);
else if (r2mu <= l2) return(2);
else return (0);
}
case D_MENGER_HEATED:
{
if ((vabs(x) >= 1.0)||(vabs(y) >= 1.0)) return(0);
else
{
x1 = 0.5*(x+1.0);
y1 = 0.5*(y+1.0);
for (k=0; k<MDEPTH; k++)
{
x1 = x1*(double)MRATIO;
y1 = y1*(double)MRATIO;
if ((((int)x1 % MRATIO)==MRATIO/2)&&(((int)y1 % MRATIO)==MRATIO/2)) return(k+2);
}
return(1);
}
}
case D_MENGER_H_OPEN: /* returns 2 if in inner circle */
{
x1 = 0.5*(x+1.0);
y1 = 0.5*(y+1.0);
for (k=0; k<MDEPTH; k++)
{
x1 = x1*(double)MRATIO;
y1 = y1*(double)MRATIO;
if ((vabs(x)<1.0)&&(vabs(y)<1.0)&&(((int)x1 % MRATIO)==MRATIO/2)&&(((int)y1 % MRATIO)==MRATIO/2)) return(k+2);
}
return(1);
}
case D_MANDELBROT:
{
u = 0.0;
v = 0.0;
i = 0;
while ((i<MANDELLEVEL)&&(u*u+v*v < 1000.0*MANDELLIMIT))
{
u1 = u*u - v*v + x;
v = 2.0*u*v + y;
u = u1;
i++;
/* old version used */
/* u1 = u*u - v*v - x; */
/* v = 2.0*u*v - y; */
}
if (u*u + v*v < MANDELLIMIT) return(0);
else if ((x-0.5)*(x-0.5)/3.0 + y*y/1.0 > 1.2) return(2);
else return(1);
}
case D_MANDELBROT_CIRCLE:
{
u = 0.0;
v = 0.0;
i = 0;
while ((i<MANDELLEVEL)&&(u*u+v*v < 1000.0*MANDELLIMIT))
{
u1 = u*u - v*v + x;
v = 2.0*u*v + y;
u = u1;
i++;
}
if (u*u + v*v < MANDELLIMIT) return(0);
else if ((x-LAMBDA)*(x-LAMBDA) + (y-0.5)*(y-0.5) < MU*MU) return(2);
else return(1);
}
case D_JULIA:
{
u = x/JULIA_SCALE;
v = y/JULIA_SCALE;
i = 0;
while ((i<MANDELLEVEL)&&(u*u+v*v < 1000.0*MANDELLIMIT))
{
u1 = u*u - v*v + julia_x;
v = 2.0*u*v + julia_y;
u = u1;
i++;
// printf("x = %.5lg y = %.5lg i = %i r2 = %.5lg\n", x, y, i, u*u+v*v);
}
// printf("i = %i x = %.5lg y = %.5lg r2 = %.5lg\n", i, x, y, u*u+v*v);
if (u*u + v*v < MANDELLIMIT) return(0);
else if (x*x/3.0 + y*y/1.0 > 1.2) return(2);
// else if ((vabs(x) > XMAX - 0.01)||(vabs(y) > YMAX - 0.01)) return(2);
else return(1);
}
default:
{
printf("Function ij_in_billiard not defined for this billiard \n");
@@ -423,8 +558,8 @@ int i, j;
void draw_billiard() /* draws the billiard boundary */
{
double x0, x, y, phi, r = 0.01, pos[2], pos1[2], alpha, dphi, omega, z;
int i, j, k1, k2;
double x0, x, y, phi, r = 0.01, pos[2], pos1[2], alpha, dphi, omega, z, l;
int i, j, k1, k2, mr2;
if (BLACK) glColor3f(1.0, 1.0, 1.0);
else glColor3f(0.0, 0.0, 0.0);
@@ -710,7 +845,195 @@ void draw_billiard() /* draws the billiard boundary */
glEnd ();
break;
}
default:
case (D_MENGER):
{
glLineWidth(3);
// draw_rectangle(XMIN, -1.0, XMAX, 1.0);
/* level 1 */
if (MDEPTH > 0)
{
glLineWidth(2);
x = 1.0/((double)MRATIO);
draw_rectangle(x, x, -x, -x);
}
/* level 2 */
if (MDEPTH > 1)
{
glLineWidth(1);
mr2 = MRATIO*MRATIO;
l = 2.0/((double)mr2);
for (i=0; i<MRATIO; i++)
for (j=0; j<MRATIO; j++)
if ((i!=MRATIO/2)||(j!=MRATIO/2))
{
x = -1.0 - 0.5*l + 2.0*((double)i + 0.5)/((double)MRATIO);
y = -1.0 - 0.5*l + 2.0*((double)j + 0.5)/((double)MRATIO);
draw_rectangle(x, y, x+l, y+l);
}
}
/* level 3 */
if (MDEPTH > 2)
{
glLineWidth(1);
l = 2.0/((double)(mr2*MRATIO));
for (i=0; i<mr2; i++)
for (j=0; j<mr2; j++)
if ( (((i%MRATIO!=MRATIO/2))||(j%MRATIO!=MRATIO/2)) && (((i/MRATIO!=MRATIO/2))||(j/MRATIO!=MRATIO/2)) )
{
x = -1.0 - 0.5*l + 2.0*((double)i + 0.5)/((double)mr2);
y = -1.0 - 0.5*l + 2.0*((double)j + 0.5)/((double)mr2);
draw_rectangle(x, y, x+l, y+l);
}
}
break;
}
case (D_JULIA_INT):
{
/* Do nothing */
break;
}
case (D_ANNULUS_HEATED):
{
glBegin(GL_LINE_LOOP);
for (i=0; i<=NSEG; i++)
{
phi = (double)i*DPI/(double)NSEG;
x = MU + LAMBDA*cos(phi);
y = LAMBDA*sin(phi);
xy_to_pos(x, y, pos);
glVertex2d(pos[0], pos[1]);
}
glEnd ();
glBegin(GL_LINE_LOOP);
for (i=0; i<=NSEG; i++)
{
phi = (double)i*DPI/(double)NSEG;
x = cos(phi);
y = sin(phi);
xy_to_pos(x, y, pos);
glVertex2d(pos[0], pos[1]);
}
glEnd ();
break;
}
case (D_MENGER_HEATED):
{
glLineWidth(3);
draw_rectangle(-1.0, -1.0, 1.0, 1.0);
/* level 1 */
if (MDEPTH > 0)
{
glLineWidth(2);
x = 1.0/((double)MRATIO);
draw_rectangle(x, x, -x, -x);
}
/* level 2 */
if (MDEPTH > 1)
{
glLineWidth(1);
mr2 = MRATIO*MRATIO;
l = 2.0/((double)mr2);
for (i=0; i<MRATIO; i++)
for (j=0; j<MRATIO; j++)
if ((i!=MRATIO/2)||(j!=MRATIO/2))
{
x = -1.0 - 0.5*l + 2.0*((double)i + 0.5)/((double)MRATIO);
y = -1.0 - 0.5*l + 2.0*((double)j + 0.5)/((double)MRATIO);
draw_rectangle(x, y, x+l, y+l);
}
}
/* level 3 */
if (MDEPTH > 2)
{
glLineWidth(1);
l = 2.0/((double)(mr2*MRATIO));
for (i=0; i<mr2; i++)
for (j=0; j<mr2; j++)
if ( (((i%MRATIO!=MRATIO/2))||(j%MRATIO!=MRATIO/2)) && (((i/MRATIO!=MRATIO/2))||(j/MRATIO!=MRATIO/2)) )
{
x = -1.0 - 0.5*l + 2.0*((double)i + 0.5)/((double)mr2);
y = -1.0 - 0.5*l + 2.0*((double)j + 0.5)/((double)mr2);
draw_rectangle(x, y, x+l, y+l);
}
}
break;
}
case (D_MENGER_H_OPEN):
{
glLineWidth(3);
// draw_rectangle(XMIN, -1.0, XMAX, 1.0);
/* level 1 */
if (MDEPTH > 0)
{
glLineWidth(2);
x = 1.0/((double)MRATIO);
draw_rectangle(x, x, -x, -x);
}
/* level 2 */
if (MDEPTH > 1)
{
glLineWidth(1);
mr2 = MRATIO*MRATIO;
l = 2.0/((double)mr2);
for (i=0; i<MRATIO; i++)
for (j=0; j<MRATIO; j++)
if ((i!=MRATIO/2)||(j!=MRATIO/2))
{
x = -1.0 - 0.5*l + 2.0*((double)i + 0.5)/((double)MRATIO);
y = -1.0 - 0.5*l + 2.0*((double)j + 0.5)/((double)MRATIO);
draw_rectangle(x, y, x+l, y+l);
}
}
/* level 3 */
if (MDEPTH > 2)
{
glLineWidth(1);
l = 2.0/((double)(mr2*MRATIO));
for (i=0; i<mr2; i++)
for (j=0; j<mr2; j++)
if ( (((i%MRATIO!=MRATIO/2))||(j%MRATIO!=MRATIO/2)) && (((i/MRATIO!=MRATIO/2))||(j/MRATIO!=MRATIO/2)) )
{
x = -1.0 - 0.5*l + 2.0*((double)i + 0.5)/((double)mr2);
y = -1.0 - 0.5*l + 2.0*((double)j + 0.5)/((double)mr2);
draw_rectangle(x, y, x+l, y+l);
}
}
break;
}
case (D_MANDELBROT):
{
/* Do nothing */
break;
}
case (D_MANDELBROT_CIRCLE):
{
/* Do nothing */
break;
}
case (D_JULIA):
{
/* Do nothing */
break;
}
default:
{
printf("Function draw_billiard not defined for this billiard \n");
}