Subversion Repositories DIN Is Noise

/*
* rose_milker.cc
* DIN Is Noise is copyright (c) 2006-2025 Jagannathan Sampath
* DIN Is Noise is released under GNU Public License 2.0
* For more information, please visit https://dinisnoise.org/
*/


#include "rose_milker.h"
#include "vector2d.h"
#include "ui_list.h"
#include "console.h"
#include <vector>
#include <fstream>
using namespace std;

extern const float TWO_PI;
extern const float PI_BY_180;

extern curve_library sin_lib, cos_lib;

rose_milker::rose_milker () : scr (this, "rose_milker.scr", "rose_milker_sin.crv", "rose_milker_cos.crv", "rose_milker_radius.crv", "rose_milker_sin.ed", "rose_milker_cos.ed", "rose_milker_radius.ed", 0) {
  name = "Rose_Milker";
  center.x = 0.5;
  center.y = 0;
  load_params ();
}

void rose_milker::load_params () {
  ifstream f (make_fname().c_str(), ios::in);
  string ignore;
  f >> ignore >> N >> ignore >> D >> ignore >> num_points >> ignore >> angle.start >> ignore >> angle.end;
}

void rose_milker::save_params () {
  ofstream f (make_fname().c_str(), ios::out);
  string ignore;
  f << "N " << N << endl << "D " << D << endl << "num_points " << num_points << endl << "start_angle " << angle.start << endl << "end_angle " << angle.end << endl;
}

rose_milker::~rose_milker () {
  widget_save ("d_rose_milker", ctrls);
  save_params ();
}

void rose_milker::setup () {

  plugin::setup ();

  widget* _ctrls [] = {&sp.N, &sp.D, &sp.num_points, &sp.angle.start, &sp.angle.end, &scr};
  for (int i = 0; i < 6; ++i) ctrls.push_back (_ctrls[i]);

  num_ctrls = ctrls.size ();

  spinner<int>* spn [] = {&sp.N, &sp.D, &sp.num_points};
  const char* lbl [] = {"N", "D", "Points"};
  int val [] = {N, D, num_points};
  for (int i = 0; i < 3; ++i) {
    spinner<int>* spi = spn[i];
    spi->set (lbl[i], 1, 0, MILLION, this, 0);
    spi->set_value (val[i]);
  }

  sp.angle.start.set ("Start angle", 1.0f, -MILLION, MILLION, this, 0);
  sp.angle.start.set_value (angle.start);

  sp.angle.end.set ("End angle", 1.0f, -MILLION, MILLION, this, 0);
  sp.angle.end.set_value (angle.end);

  widget_load ("d_rose_milker", ctrls);

  scr.setup ();
  scr.set_pos (cb_auto_apply.posx, cb_auto_apply.posy);
  sin_cos_radius_optioned ();

  render ();

}

void rose_milker::render () {

  funktion& f_sin = *scr.pf_sin;
  funktion& f_cos = *scr.pf_cos;

  N = sp.N.value;
  D = sp.D.value;

  if (D == 0) return;
  K = N * 1. / D;

  num_points = sp.num_points.value;
  if (num_points == 0) return;

  angle.start = sp.angle.start.value;
  angle.end = sp.angle.end.value;

  float dtheta = (angle.end - angle.start) / num_points * PI_BY_180;
  float theta = angle.start * PI_BY_180;
  float theta_k = theta;
  int j = num_points + 1;
  points.resize (j);
  float R;
  float ktheta;
  for (int i = 0; i < j; ++i) {
    ktheta = K * theta_k;
    while (ktheta > TWO_PI) ktheta -= TWO_PI;
    R = f_sin (ktheta);
    point<float>& pi = points[i];
    pi.x = center.x + R * f_cos (theta);
    pi.y = center.y + R * f_sin (theta);
    theta += dtheta;
    theta_k += dtheta;
    while (theta > TWO_PI) theta -= TWO_PI;
  }

  ss.str("");
  ss << "rose_" << N << "by" << D << "_" << (int)angle.end;

  gen_pts ();

}

void rose_milker::sin_cos_radius_optioned () {
  do_render ();
}

void rose_milker::sin_cos_radius_edited () {
  do_render ();
}