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Tags: upstream-0.9.0
Import upstream version 0.9.0

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src/GeodesicGridDrawer.cpp
 
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/*
 
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 * Stellarium
 
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 * Copyright (C) 2006 Fabien Chereau
 
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 * 
 
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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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 * 
 
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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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 * 
 
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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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 */
 
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#include <sstream>
 
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#include "GeodesicGridDrawer.h"
 
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#include "Projector.hpp"
 
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#include "StelApp.hpp"
 
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#include "StelFontMgr.hpp"
 
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#include "StelLocaleMgr.hpp"
 
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GeodesicGridDrawer::GeodesicGridDrawer(int maxLevel)
 
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{
 
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//      geodesic_grid = new GeodesicGrid(maxLevel);
 
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//      geodesic_search_result = new GeodesicSearchResult(*geodesic_grid);
 
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        font = &StelApp::getInstance().getFontManager().getStandardFont(StelApp::getInstance().getLocaleMgr().getAppLanguage());
 
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}
 
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GeodesicGridDrawer::~GeodesicGridDrawer()
 
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{
 
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//      delete geodesic_search_result;
 
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//      delete geodesic_grid;
 
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}
 
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void GeodesicGridDrawer::init(const InitParser& conf, LoadingBar& lb)
 
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{
 
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}
 
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double GeodesicGridDrawer::draw(Projector *prj, const Navigator *nav,
 
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                                ToneReproductor *eye, int max_search_level)
 
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{
 
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        glDisable(GL_TEXTURE_2D);
 
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        glEnable(GL_BLEND);     
 
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        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); // Normal transparency mode
 
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        prj->setCurrentFrame(Projector::FRAME_J2000);   // set 2D coordinate
 
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        glColor4f(0.2,0.3,0.2,1);
 
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        int lev = (int)(7./pow(prj->getFov(), 0.4))+2;
 
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        if (lev>geodesic_grid->getMaxLevel()) lev = geodesic_grid->getMaxLevel();
 
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    lev = max_search_level;
 
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//      Vec3d e0, e1, e2, e3;
 
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        Vec3d win1, win2;
 
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//      prj->unproject_j2000(0,0,e0);
 
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//      prj->unproject_j2000(prj->getViewportWidth(),0,e1);
 
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//      prj->unproject_j2000(prj->getViewportWidth(),prj->getViewportHeight(),e2);
 
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//      prj->unproject_j2000(0,prj->getViewportHeight(),e3);
 
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//      geodesic_search_result->search(e0, e3, e2, e1, lev);
 
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        int index;
 
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        Vec3d v0, v1, v2;
 
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        {
 
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        GeodesicSearchInsideIterator it1(*geodesic_search_result, lev);
 
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        while((index = it1.next()) >= 0)
 
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        {
 
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                Vec3d center;
 
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                geodesic_grid->getTriangleCorners(lev, index, v0, v1, v2);
 
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                prj->project(v0, win1);
 
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                prj->project(v1, win2);
 
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                center += win1;
 
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                glBegin (GL_LINES);
 
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                        glVertex2f(win1[0],win1[1]);
 
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                        glVertex2f(win2[0],win2[1]);
 
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        glEnd();
 
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                prj->project(v1, win1);
 
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                prj->project(v2, win2);
 
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                glBegin (GL_LINES);
 
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                        glVertex2f(win1[0],win1[1]);
 
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                        glVertex2f(win2[0],win2[1]);
 
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        glEnd();
 
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        center += win1;
 
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                prj->project(v2, win1);
 
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                prj->project(v0, win2);
 
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                glBegin (GL_LINES);
 
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                        glVertex2f(win1[0],win1[1]);
 
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                        glVertex2f(win2[0],win2[1]);
 
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        glEnd();
 
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        center += win1;
 
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        center*=0.33333;
 
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        ostringstream os;
 
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        os << index << " (" << geodesic_grid->getPartnerTriangle(lev, index) << ")";
 
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        glEnable(GL_TEXTURE_2D);
 
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                prj->drawText(font,center[0]-6, center[1]+6, os.str());
 
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                glDisable(GL_TEXTURE_2D);
 
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        }
 
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        }
 
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        GeodesicSearchBorderIterator it1(*geodesic_search_result, lev);
 
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        while((index = it1.next()) >= 0)
 
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        {
 
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                Vec3d center;
 
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                geodesic_grid->getTriangleCorners(lev, index, v0, v1, v2);
 
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                prj->project(v0, win1);
 
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                prj->project(v1, win2);
 
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                center += win1;
 
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                glBegin (GL_LINES);
 
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                        glVertex2f(win1[0],win1[1]);
 
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                        glVertex2f(win2[0],win2[1]);
 
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        glEnd();
 
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                prj->project(v1, win1);
 
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                prj->project(v2, win2);
 
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                glBegin (GL_LINES);
 
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                        glVertex2f(win1[0],win1[1]);
 
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                        glVertex2f(win2[0],win2[1]);
 
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        glEnd();
 
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        center += win1;
 
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                prj->project(v2, win1);
 
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                prj->project(v0, win2);
 
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                glBegin (GL_LINES);
 
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                        glVertex2f(win1[0],win1[1]);
 
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                        glVertex2f(win2[0],win2[1]);
 
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        glEnd();
 
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        center += win1;
 
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        center*=0.33333;
 
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        ostringstream os;
 
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        os << index << " (" << geodesic_grid->getPartnerTriangle(lev, index) << ")";
 
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        glEnable(GL_TEXTURE_2D);
 
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                prj->drawText(font,center[0]-6, center[1]+6, os.str());
 
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                glDisable(GL_TEXTURE_2D);
 
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        }
 
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        return 0.;
 
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}