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Diffstat (limited to 'src/ProjectionSphaeric.cxx')
-rw-r--r-- | src/ProjectionSphaeric.cxx | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/src/ProjectionSphaeric.cxx b/src/ProjectionSphaeric.cxx deleted file mode 100644 index 5227355..0000000 --- a/src/ProjectionSphaeric.cxx +++ /dev/null @@ -1,163 +0,0 @@ -// -// Copyright 2006 Johannes Hofmann <Johannes.Hofmann@gmx.de> -// -// This software may be used and distributed according to the terms -// of the GNU General Public License, incorporated herein by reference. -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <math.h> - -#include "ProjectionSphaeric.H" - -#define BEST_UNDEF 10000000.0 - -int -ProjectionSphaeric::comp_params(const Hills *h, ViewParams *parms) { - const Hill *m_tmp, *m1, *m2; - double tmp_x, tmp_y; - double val; - ViewParams best, tmp; - double best_val = BEST_UNDEF; - double d_m1_2, d_m2_2, d_m1_m2_2; - int i, j; - - - if (h->get_num() != 2) { - return 1; - } - - m1 = h->get(0); - m2 = h->get(1); - - if (m1->x < m2->x) { - m_tmp = m1; - m1 = m2; - m2 = m_tmp; - } - - d_m1_2 = pow(m1->x, 2.0) + pow(m1->y, 2.0); - d_m2_2 = pow(m2->x, 2.0) + pow(m2->y, 2.0); - d_m1_m2_2 = pow(m1->x - m2->x, 2.0) + pow(m1->y - m2->y, 2.0); - - tmp.scale = comp_scale(m1, m2, d_m1_m2_2); - - for(i=0; i<2; i++) { // we need to try four possible solutions ... - for(j=0; j<2; j++) { - tmp.a_center = comp_dir_view(m1, m2, d_m1_2, d_m2_2, - tmp.scale, i==0?1.0:-1.0); - tmp.a_nick = comp_nick_view(m1, m2, d_m1_2, tmp.scale, tmp.a_center, - j==0?1.0:-1.0); - - // use the point with greater distance from center for tilt computation - if (d_m1_2 > d_m2_2) { - tmp.a_tilt = comp_tilt_view(m1, tmp.scale, tmp.a_center, tmp.a_nick); - } else { - tmp.a_tilt = comp_tilt_view(m2, tmp.scale, tmp.a_center, tmp.a_nick); - } - - if (isnan(tmp.a_center) || isnan(tmp.scale) || - isnan(tmp.a_nick) || isnan(tmp.a_tilt)) { - ; - } else { - get_coordinates(m1->a_view, m1->a_nick, &tmp, &tmp_x, &tmp_y); - val = sqrt(pow(tmp_x - m1->x, 2.0) + pow(tmp_y - m1->y, 2.0)); - get_coordinates(m2->a_view, m2->a_nick, &tmp, &tmp_x, &tmp_y); - val += sqrt(pow(tmp_x - m2->x, 2.0) + pow(tmp_y - m2->y, 2.0)); - - if (val < best_val) { - best_val = val; - best = tmp; - } - } - } - } - - if (best_val < BEST_UNDEF) { - *parms = best; - return 0; - } else { - return 1; - } -} - -void -ProjectionSphaeric::get_coordinates(double a_view, double a_nick, - const ViewParams *parms, double *x, double *y) { - double x_tmp, y_tmp; - - x_tmp = a_view * parms->scale; - y_tmp = - (a_nick - parms->a_nick) * parms->scale; - - // rotate by a_tilt; - *x = x_tmp * cos(parms->a_tilt) - y_tmp * sin(parms->a_tilt); - *y = x_tmp * sin(parms->a_tilt) + y_tmp * cos(parms->a_tilt); -} - - -double -ProjectionSphaeric::comp_scale(const Hill *m1, const Hill *m2, double d_m1_m2_2) { - double sign1 = 1.0; - double nick_m1 = m1->a_nick; - double nick_m2 = m2->a_nick; - double dir_m1 = m1->alph; - double dir_m2 = m2->alph; - - return (pow((d_m1_m2_2 / ((dir_m2 * dir_m2) - (2.0 * ((dir_m2 * dir_m1) + (nick_m2 * nick_m1))) + (nick_m2 * nick_m2) + (dir_m1 * dir_m1) + (nick_m1 * nick_m1))), (1.0 / 2.0)) * sign1); -} - -// using the sign3 parameter one can choose between the two possible solutions -// sign3 must be 1.0 or -1.0 -double -ProjectionSphaeric::comp_dir_view(const Hill *m1, const Hill *m2, double d_m1_2, double d_m2_2, double scale, double sign3) { - double dir_view; - double nick_m1 = m1->a_nick; - double nick_m2 = m2->a_nick; - double dir_m1 = m1->alph; - double dir_m2 = m2->alph; - - dir_view = (((pow((16.0 * pow(scale, 4.0) * (((scale * scale) * ((2.0 * (((scale * scale) * ((dir_m1 * ((dir_m1 * ((nick_m1 * ((nick_m1 * ((nick_m2 * ((4.0 * nick_m1) - (6.0 * nick_m2))) - (nick_m1 * nick_m1))) + (nick_m2 * ((4.0 * (nick_m2 * nick_m2)) + (6.0 * (dir_m2 * dir_m2)) + (dir_m1 * dir_m1))))) - pow(nick_m2, 4.0))) + (nick_m1 * nick_m2 * dir_m2 * ((nick_m1 * ((12.0 * nick_m2) - (8.0 * nick_m1))) - (8.0 * (nick_m2 * nick_m2)))))) + ((dir_m2 * dir_m2) * ((nick_m1 * ((nick_m2 * (dir_m2 * dir_m2)) - pow(nick_m1, 3.0))) - pow(nick_m2, 4.0))))) + ((d_m1_2 + d_m2_2) * ((((nick_m1 * nick_m1) + (nick_m2 * nick_m2)) * ((dir_m1 * dir_m1) + (dir_m2 * dir_m2))) + pow(nick_m1, 4.0) + pow(nick_m2, 4.0))))) + (4.0 * ((dir_m1 * ((nick_m1 * ((nick_m1 * dir_m2 * (((scale * scale) * ((nick_m1 * nick_m1) + (dir_m1 * dir_m1) + (dir_m2 * dir_m2))) - d_m1_2 - d_m2_2)) - (dir_m1 * nick_m2 * (d_m2_2 + d_m1_2)))) + ((nick_m2 * nick_m2) * dir_m2 * (((scale * scale) * ((nick_m2 * nick_m2) + (dir_m1 * dir_m1) + (dir_m2 * dir_m2))) - d_m1_2 - d_m2_2)))) - (nick_m1 * nick_m2 * (dir_m2 * dir_m2) * (d_m1_2 + d_m2_2)))) + ((scale * scale) * ((nick_m1 * ((nick_m1 * ((nick_m2 * (((dir_m2 * dir_m2) * ((8.0 * nick_m1) - (12.0 * nick_m2))) + (nick_m1 * ((nick_m1 * ((6.0 * nick_m1) - (15.0 * nick_m2))) + (20.0 * (nick_m2 * nick_m2)))) - (15.0 * pow(nick_m2, 3.0)))) - ((dir_m1 * dir_m1) * ((dir_m1 * dir_m1) + (6.0 * (dir_m2 * dir_m2)))) - pow(dir_m2, 4.0) - pow(nick_m1, 4.0))) + (nick_m2 * ((8.0 * dir_m2 * ((dir_m2 * ((nick_m2 * nick_m2) - (dir_m1 * dir_m2))) - pow(dir_m1, 3.0))) + (6.0 * pow(nick_m2, 4.0)))))) - ((nick_m2 * nick_m2) * (((dir_m1 * dir_m1) * ((6.0 * (dir_m2 * dir_m2)) + (dir_m1 * dir_m1))) + pow(dir_m2, 4.0) + pow(nick_m2, 4.0))))) + (nick_m1 * nick_m2 * (d_m1_2 + d_m2_2) * ((8.0 * ((dir_m1 * dir_m2) - (nick_m1 * nick_m1) - (nick_m2 * nick_m2))) + (12.0 * nick_m1 * nick_m2))))) + (((d_m1_2 * ((2.0 * d_m2_2) - d_m1_2)) - (d_m2_2 * d_m2_2)) * ((nick_m1 * (nick_m1 - (2.0 * nick_m2))) + (nick_m2 * nick_m2))))), (1.0 / 2.0)) * sign3 / 2.0) + (2.0 * (scale * scale) * (((scale * scale) * ((dir_m1 * ((nick_m1 * (nick_m1 - (2.0 * nick_m2))) + (nick_m2 * nick_m2) - (dir_m2 * (dir_m2 + dir_m1)) + (dir_m1 * dir_m1))) + (dir_m2 * ((dir_m2 * dir_m2) + (nick_m1 * (nick_m1 - (2.0 * nick_m2))) + (nick_m2 * nick_m2))))) + ((dir_m2 - dir_m1) * (d_m1_2 - d_m2_2))))) / (4.0 * pow(scale, 4.0) * ((dir_m1 * (dir_m1 - (2.0 * dir_m2))) + (dir_m2 * dir_m2) + (nick_m1 * (nick_m1 - (2.0 * nick_m2))) + (nick_m2 * nick_m2)))); - - return dir_view; -} - - -double -ProjectionSphaeric::comp_nick_view(const Hill *m1, const Hill *m2, double d_m1_2, double scale, double dir_view, double sign1) { - double nick_view; - double nick_m1 = m1->a_nick; - double dir_m1 = m1->alph; - - nick_view = ((pow(((d_m1_2 / (scale * scale)) - pow((dir_view - dir_m1), 2.0)), (1.0 / 2.0)) * sign1) + nick_m1); - - return nick_view; -} - -double -ProjectionSphaeric::comp_tilt_view(const Hill *m, double scale, double dir_view, double nick_view) { - double sin_a_tilt1, sin_a_tilt2, sin_a_tilt, res; - double x_tmp = (m->alph - dir_view) * scale; - double y_tmp = (m->a_nick - nick_view) * scale; - double x = m->x; - double y = m->y; - - - sin_a_tilt1 = - (y * - pow(x*x + y*y - y_tmp*y_tmp, 0.5) - x * y_tmp) / - (x*x + y*y); - - sin_a_tilt2 = - (y * pow(x*x + y*y - y_tmp*y_tmp, 0.5) - x * y_tmp) / - (x*x + y*y); - - sin_a_tilt = fabs(sin_a_tilt1) < fabs(sin_a_tilt2)?sin_a_tilt1:sin_a_tilt2; - - res = asin(sin_a_tilt); - - if (res > pi_d / 4.0) { - res = res - pi_d / 2.0; - } else if (res < -pi_d / 4.0) { - res = res + pi_d / 2.0; - } - - return res; - -} |