kstars/skycomponents/highpmstarlist.cpp

0001 /*
0002     SPDX-FileCopyrightText: 2007 James B. Bowlin <bowlin@mindspring.com>
0003
0004     SPDX-License-Identifier: GPL-2.0-or-later
0005 */
0006
0007 #include "highpmstarlist.h"
0008
0009 #include "skymesh.h"
0010 #include "skyobjects/starobject.h"
0011
0012 #include <QDebug>
0013
0014 typedef struct HighPMStar
0015 {
0016     HighPMStar(Trixel t, StarObject *s) : trixel(t), star(s) {}
0017     Trixel trixel;
0018     StarObject *star { nullptr };
0019
0020 } HighPMStar;
0021
0022 HighPMStarList::HighPMStarList(double threshold) : m_reindexNum(J2000), m_threshold(threshold)
0023 {
0024     m_skyMesh = SkyMesh::Instance();
0025 }
0026
0027 HighPMStarList::~HighPMStarList()
0028 {
0029     qDeleteAll(m_stars);
0030     m_stars.clear();
0031 }
0032
0033 bool HighPMStarList::append(Trixel trixel, StarObject *star, double pm)
0034 {
0035     if (pm < m_threshold)
0036         return false;
0037
0038     if (trixel >= m_skyMesh->size())
0039         qDebug() << Q_FUNC_INFO << "### Trixel ID out of range for the Mesh currently in use!" << trixel;
0040
0041     m_stars.append(new HighPMStar(trixel, star));
0042     if (m_maxPM >= pm)
0043         return true;
0044
0045     m_maxPM           = pm;
0046     m_reindexInterval = StarObject::reindexInterval(pm);
0047
0048     return true;
0049 }
0050
0051 void HighPMStarList::setIndexTime(KSNumbers *num)
0052 {
0053     m_reindexNum = KSNumbers(*num);
0054 }
0055
0056 bool HighPMStarList::reindex(KSNumbers *num, StarIndex *starIndex)
0057 {
0058     if (fabs(num->julianCenturies() - m_reindexNum.julianCenturies()) < m_reindexInterval)
0059         return false;
0060
0061     m_reindexNum = KSNumbers(*num);
0062     m_skyMesh->setKSNumbers(num);
0063
0064     int cnt(0);
0065
0066     for (auto &HPStar : m_stars)
0067     {
0068         Trixel trixel = m_skyMesh->indexStar(HPStar->star);
0069
0070         if (trixel == HPStar->trixel)
0071             continue;
0072         cnt++;
0073         StarObject *star = HPStar->star;
0074
0075         // out with the old ...
0076         if (HPStar->trixel >= m_skyMesh->size())
0077         {
0078             qDebug() << Q_FUNC_INFO << "### Expect an Index out-of-range error. star->trixel =" << HPStar->trixel;
0079         }
0080
0081         StarList *old = starIndex->at(HPStar->trixel);
0082         old->removeAt(old->indexOf(star));
0083
0084         float mag = star->mag();
0085         //printf("\n mag = %4.2f  trixel %d -> %d\n", mag, HPStar->trixel, trixel );
0086
0087         // in with the new ...
0088         HPStar->trixel = trixel;
0089         if (trixel >= m_skyMesh->size())
0090             qDebug() << Q_FUNC_INFO << "### Expect an Index out-of-range error. trixel =" << trixel;
0091
0092         StarList *list = starIndex->at(trixel);
0093         int j;
0094         for (j = 0; j < list->size(); j++)
0095         {
0096             if (list->at(j)->mag() < mag)
0097                 continue;
0098             list->insert(j, star);
0099             break;
0100         }
0101         if (j == list->size())
0102             list->append(star);
0103
0104         //for ( j = 0; j < list->size(); j++ ) {
0105         //    printf("    %4.2f\n", list->at(j)->mag() );
0106         //}
0107     }
0108     return true;
0109     //printf("Re-indexed %d stars at interval %6.1f\n", cnt, 100.0 * m_reindexInterval );
0110 }
0111
0112 void HighPMStarList::stats()
0113 {
0114     printf("\n");
0115     printf("maxPM: %6.1f  threshold %5.1f\n", m_maxPM, m_threshold);
0116     printf("stars: %d\n", size());
0117     printf("Update Interval: %6.1f years\n", 100.0 * m_reindexInterval);
0118     printf("Last Update: %6.1f\n", 2000.0 + 100.0 * (int)m_reindexNum.julianCenturies());
0119 }