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* Copyright (C) 2002 Fabien Chereau
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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#include "stellarium.h"
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#include "navigator.h"
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#include "stellastro.h"
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#include "stel_utility.h"
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#include "s_gui.h" //circle
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#define RADIUS_STAR 1.
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// Init Static variables
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float HipStar::twinkle_amount = 10.f;
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float HipStar::star_scale = 10.f;
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float HipStar::star_mag_scale = 10.f;
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float HipStar::names_brightness = 1.f;
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ToneReproductor* HipStar::eye = NULL;
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Projector* HipStar::proj = NULL;
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bool HipStar::gravity_label = false;
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s_font *HipStar::starFont = NULL;
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Vec3f HipStar::circle_color = Vec3f(0.f,0.f,0.f);
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Vec3f HipStar::label_color = Vec3f(.8f,.8f,.8f);
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Vec3f HipStar::ChartColors[20] =
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Vec3f(0.25,0.60,1.00) /* A+*/, Vec3f(0.73,0.13,0.59) /* B+*/, Vec3f(1.00,0.50,0.00) /* C-*/,
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Vec3f(0.00,0.00,0.00) /* Dx*/, Vec3f(0.00,0.00,0.00) /* Ex*/, Vec3f(0.15,0.85,0.00) /* F+*/,
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Vec3f(1.00,1.00,0.25) /* G+*/, Vec3f(0.00,0.00,0.00) /* Hx*/, Vec3f(0.00,0.00,0.00) /* Ix*/,
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Vec3f(0.00,0.00,0.00) /* Jx*/, Vec3f(1.00,0.65,0.25) /* K+*/, Vec3f(0.00,0.00,0.00) /* Lx*/,
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Vec3f(1.00,0.00,0.00) /* M */, Vec3f(1.00,0.00,0.00) /* N+*/, Vec3f(0.73,0.13,0.59) /* O+*/,
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Vec3f(0.00,0.00,0.00) /* Px*/, Vec3f(0.00,0.00,0.00) /* Qx*/, Vec3f(1.00,0.00,0.00) /* R+*/,
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Vec3f(0.00,0.00,0.00) /* S+*/, Vec3f(0.50,0.50,0.50) /* Defualt */
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HipStar::HipStar(void) :
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wstring HipStar::getInfoString(const Navigator * nav) const
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Vec3d equatorial_pos = nav->j2000_to_earth_equ(XYZ);
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rect_to_sphe(&tempRA,&tempDE,equatorial_pos);
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if (commonNameI18!=L"" || sciName!=L"")
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oss << commonNameI18 << wstring(commonNameI18 == L"" ? L"" : L" ");
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if (commonNameI18!=L"" && sciName!=L"") oss << wstring(L"(");
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oss << wstring(sciName==L"" ? L"" : sciName);
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if (commonNameI18!=L"" && sciName!=L"") oss << wstring(L")");
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if (HP) oss << L"HP " << HP;
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if (doubleStar) oss << L" **";
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oss << _("Magnitude: ") << Mag;
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if (variableStar) oss << _(" (Variable)");
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oss << _("RA/DE: ") << StelUtility::printAngleHMS(tempRA) << L"/" << StelUtility::printAngleDMS(tempDE) << endl;
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Vec3d local_pos = nav->earth_equ_to_local(equatorial_pos);
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rect_to_sphe(&tempRA,&tempDE,local_pos);
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tempRA = 3*M_PI - tempRA; // N is zero, E is 90 degrees
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if(tempRA > M_PI*2) tempRA -= M_PI*2;
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oss << _("Az/Alt: ") << StelUtility::printAngleDMS(tempRA) << L"/" << StelUtility::printAngleDMS(tempDE) << endl;
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oss << _("Distance: ");
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if(Distance) oss << Distance; else oss << "-";
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oss << _(" Light Years") << endl;
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if (HP > 0) oss << HP; else oss << "-";
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oss << _("Spectral Type: ") << getSpectralType() << endl;
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wstring HipStar::getNameI18() const
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if (commonNameI18!=L"" || sciName!=L"")
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// TODO: ISSUE Sci name shouldn't show with other cultures
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// Tie to culture or make option? Rob
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if (commonNameI18 == L"") return L""; // return sciName;
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else return commonNameI18;
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return L"HP " + StelUtility::intToWstring(HP);
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wstring HipStar::getShortInfoString(const Navigator * nav) const
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oss << getNameI18() << L" ";
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oss.setf(ios::fixed);
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oss << _("Magnitude: ") << Mag;
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if (variableStar) oss << _(" (Variable)");
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oss << L" " << Distance << _(" Light Years");
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static const char spectral_type[13] = {
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'O','B','A','F','G','K','M','R','S','N','W','X','?'
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static Vec3f star_colors[12] = {
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Vec3f(0.8 /1.3, 1.0 /1.3, 1.3 /1.3),
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Vec3f(0.9 /1.2, 1.0 /1.2, 1.2 /1.2),
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Vec3f(0.95/1.15, 1.0 /1.15,1.15/1.15),
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Vec3f(1.05/1.05, 1.0 /1.05,1.05/1.05),
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Vec3f(1.3 /1.3, 1.0 /1.3, 0.9 /1.3),
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Vec3f(1.15/1.15, 0.95/1.15,0.8 /1.15),
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Vec3f(1.15/1.15, 0.85/1.15,0.8 /1.15),
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Vec3f(1.3 /1.3, 0.85/1.3, 0.6 /1.3),
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Vec3f(1.5 /1.5, 0.8 /1.5, 0.2 /1.5),
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Vec3f(1.5 /1.5, 0.8 /1.5, 0.2 /1.5),
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Vec3f(1.5 /1.5, 0.8 /1.5, 0.2 /1.5),
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char HipStar::getSpectralType(void) const {
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return spectral_type[type];
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Vec3f HipStar::get_RGB(void) const {
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return star_colors[type];
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// Read datas in binary catalog and compute x,y,z;
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// The aliasing bug on some architecture has been fixed by Rainer Canavan on 26/11/2003
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// Really ? -- JB, 20060607
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int HipStar::read(FILE * catalog)
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union { float fl; unsigned int ui; } RA, DE, LY, xRA, xDE, xLY;
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fread(&xRA.ui,4,1,catalog);
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LE_TO_CPU_INT32(RA.ui, xRA.ui);
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fread(&xDE.ui,4,1,catalog);
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LE_TO_CPU_INT32(DE.ui, xDE.ui);
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// for debug printing
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// float rao = RA.fl;
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// float deo = DE.fl;
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RA.fl*=M_PI/12.; // Convert from hours to rad
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DE.fl*=M_PI/180.; // Convert from deg to rad
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unsigned short int mag, xmag;
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fread(&xmag,2,1,catalog);
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LE_TO_CPU_INT16(mag, xmag);
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Mag = (5. + mag) / 256.0;
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if (Mag>250) Mag = Mag - 256;
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fread(&type,1,1,catalog);
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if (type > 12) type = 12;
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// Calc the Cartesian coord with RA and DE
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sphe_to_rect(RA.fl,DE.fl,XYZ);
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// Precomputation of a term used later
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term1 = expf(-0.92103f*(Mag + 12.12331f)) * 108064.73f;
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fread(&xLY.ui,4,1,catalog);
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LE_TO_CPU_INT32(LY.ui, xLY.ui);
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if (mag==0 && type==0) return 0;
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// Hardcoded fix for bad data (because hp catalog isn't in cvs control)
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if(HP==120412) { mag = type = 0; return 0; }
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// printf("%d\t%d\t%.4f\t%.4f\t%c\n", HP, mag, rao, deo, SpType);
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void HipStar::draw(const Vec3d &XY)
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// Compute the equivalent star luminance for a 5 arc min circle and convert it
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// in function of the eye adaptation
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float rmag = eye->adapt_luminance(term1)
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* powf(proj->get_fov(),-0.85f) * 70.f;
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// if size of star is too small (blink) we put its size to 1.2 --> no more blink
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// And we compensate the difference of brighteness with cmag
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cmag=rmag*rmag/1.44f;
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if (rmag/star_scale<0.1f || cmag<0.1/star_mag_scale) return;
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// Calculation of the luminosity
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// Random coef for star twinkling
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cmag*=(1.-twinkle_amount*rand()/RAND_MAX);
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cmag*=star_mag_scale;
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glColor3fv(star_colors[type]*cmag);
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glBlendFunc(GL_ONE, GL_ONE);
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glTexCoord2i(0,0); glVertex2f(XY[0]-rmag,XY[1]-rmag); // Bottom left
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glTexCoord2i(1,0); glVertex2f(XY[0]+rmag,XY[1]-rmag); // Bottom right
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glTexCoord2i(1,1); glVertex2f(XY[0]+rmag,XY[1]+rmag); // Top right
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glTexCoord2i(0,1); glVertex2f(XY[0]-rmag,XY[1]+rmag); // Top left
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void HipStar::draw_point(const Vec3d &XY)
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// Compute the equivalent star luminance for a 5 arc min circle and convert it
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// in function of the eye adaptation
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rmag = eye->adapt_luminance(term1);
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rmag = rmag*powf(proj->get_fov(),-0.85f)*50.f;
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// if size of star is too small (blink) we put its size to 1.2 --> no more blink
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// And we compensate the difference of brighteness with cmag
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cmag = rmag * rmag / 1.44f;
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if (rmag/star_scale<0.05f || cmag<0.05/star_mag_scale) return;
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// Calculation of the luminosity
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// Random coef for star twinkling
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cmag*=(1.-twinkle_amount*rand()/RAND_MAX);
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cmag*=star_mag_scale;
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glColor3fv(star_colors[type]*cmag);
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glBlendFunc(GL_ONE, GL_ONE);
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// rms - one pixel stars
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glDisable(GL_TEXTURE_2D);
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glVertex3f(XY[0],XY[1],0);
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glEnable(GL_TEXTURE_2D); // required for star labels to work
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bool HipStar::draw_name(const Vec3d &XY)
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starname = getNameI18();
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if (starname==L"") return false;
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// if (draw_mode == DM_NORMAL) {
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glColor4f(star_colors[type][0]*0.75,
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star_colors[type][1]*0.75,
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star_colors[type][2]*0.75,
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//else glColor3fv(label_color);
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proj->getFlagGravityLabels() ? proj->print_gravity180(starFont, XY[0],XY[1], starname, 1, 6, -4) :
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starFont->print(XY[0]+6,XY[1]-4, starname);
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void HipStar::draw_chart(const Vec3d &XY)
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float r = Mag*-0.81+8.85;
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// multiplier = 1 at fov = 35, and 1/2 at fov=180
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r = r *((.5-1)/(180-35)*proj->get_fov()+(1-35*((.5-1)/(180-35))));
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glColor3fv(ChartColors[ChartColorIndex]);
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// glBindTexture (GL_TEXTURE_2D, idcTex);
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glTexCoord2i(0,0); glVertex2f(XY[0]-r,XY[1]-r); // Bottom left
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glTexCoord2i(1,0); glVertex2f(XY[0]+r,XY[1]-r); // Bottom right
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glTexCoord2i(1,1); glVertex2f(XY[0]+r,XY[1]+r); // Top right
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glTexCoord2i(0,1); glVertex2f(XY[0]-r,XY[1]+r); // Top left
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glColor3fv(circle_color);
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bool lastState = glIsEnabled(GL_TEXTURE_2D);
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glDisable(GL_TEXTURE_2D);
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glBegin(GL_LINE_LOOP);
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glVertex3f(XY[0] - r - 4, XY[1],0.f);
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glVertex3f(XY[0] - r, XY[1],0.f);
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glBegin(GL_LINE_LOOP);
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glVertex3f(XY[0] + r, XY[1],0.f);
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glVertex3f(XY[0] + r+4, XY[1],0.f);
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if (lastState) glEnable(GL_TEXTURE_2D);
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bool HipStar::readSAO(char *record, float maxmag)
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int RAh, RAm, DEd, DEm;
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// filter the magnitude
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sscanf(&record[103],"%f",&Mag);
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if (Mag < -1) Mag = 14; // trap -9.99's
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if (Mag > maxmag) return false;
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sscanf(&record[0],"%d",&SAO);
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sscanf(&record[11],"%d",&num);
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if (num > 0) HD = num;
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sscanf(&record[37],"%d %d %f",&RAh, &RAm, &RAs);
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sscanf(&record[52],"%d %d %f",&DEd, &DEm, &DEs);
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RA = (double)RAh+(float)RAm/60.+(float)RAs/3600.;
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DE = (double)DEd+(float)DEm/60.+(float)DEs/3600.;
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if (record[51] == '-') DE *= -1.;
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RA*=M_PI/12.; // Convert from hours to rad
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DE*=M_PI/180.; // Convert from deg to rad
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// Calc the Cartesian coord with RA and DE
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sphe_to_rect(RA,DE,XYZ);
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SpType = record[143];
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setColor(SpType); // Color depending on the spectral type
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Distance = 0; // not in file (no parallex)
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bool HipStar::readHP(char *record, float maxmag)
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int RAh, RAm, DEd, DEm;
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sscanf(&record[2],"%d",&HP);
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// filter the magnitude
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sscanf(&record[351],"%f",&Mag);
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if (Mag < -2) Mag = 14; // trap -9.99's, sirius = -1.03!
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sscanf(&record[465],"%d",&num);
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if (num > 0) HD = num;
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sscanf(&record[14],"%d %d %f",&RAh, &RAm, &RAs);
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sscanf(&record[28],"%d %d %f",&DEd, &DEm, &DEs);
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RA = (double)RAh+(float)RAm/60.+(float)RAs/3600.;
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DE = (double)DEd+(float)DEm/60.+(float)DEs/3600.;
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if (record[27] == '-') DE *= -1.;
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RA*=M_PI/12.; // Convert from hours to rad
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DE*=M_PI/180.; // Convert from deg to rad
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// Calc the Cartesian coord with RA and DE
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sphe_to_rect(RA,DE,XYZ);
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SpType = record[516];
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setColor(SpType); // Color depending on the spectral type
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// Determine the distance from the parallax
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sscanf(&record[87],"%f",&par);
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Distance = 1.f*3261.64/par;
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if (Distance < 0) Distance = 0;
added
removed
src/hip_star.cpp
