root/OpenSceneGraph/trunk/examples/osgplanets/osgplanets.cpp @ 5954

Revision 5954, 36.1 kB (checked in by robert, 6 years ago)

Ported following examples to osgViewer:

osgparticleeffects
osgphotoalbum
osgpick
osgpoints
osgpointsprite
osgprecipitation
osgprerender
osgprerendercubemap
osgreflect
osgscalarbar
osgscribe
osgsequence
osgplanets

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1/* details about distances and rotation on http://www.solarviews.com/eng/solarsys.htm */
2
3#include <iostream>
4
5#include <osg/Notify>
6#include <osg/MatrixTransform>
7#include <osg/PositionAttitudeTransform>
8#include <osg/Geometry>
9#include <osg/Geode>
10#include <osg/ShapeDrawable>
11#include <osg/Texture2D>
12#include <osg/Material>
13#include <osg/Light>
14#include <osg/LightSource>
15#include <osg/LightModel>
16#include <osg/Billboard>
17#include <osg/LineWidth>
18#include <osg/TexEnv>
19#include <osg/TexEnvCombine>
20#include <osg/ClearNode>
21
22
23#include <osgUtil/Optimizer>
24
25#include <osgDB/Registry>
26#include <osgDB/ReadFile>
27#include <osgDB/WriteFile>
28
29
30#include <osgGA/NodeTrackerManipulator>
31#include <osgGA/TrackballManipulator>
32#include <osgGA/FlightManipulator>
33#include <osgGA/DriveManipulator>
34#include <osgGA/KeySwitchMatrixManipulator>
35
36#include <osgViewer/Viewer>
37
38
39static osg::Vec3 defaultPos( 0.0f, 0.0f, 0.0f );
40static osg::Vec3 centerScope(0.0f, 0.0f, 0.0f);
41
42
43/** create quad at specified position. */
44osg::Drawable* createSquare(const osg::Vec3& corner,const osg::Vec3& width,const osg::Vec3& height, osg::Image* image=NULL)
45{
46    // set up the Geometry.
47    osg::Geometry* geom = new osg::Geometry;
48
49    osg::Vec3Array* coords = new osg::Vec3Array(4);
50    (*coords)[0] = corner;
51    (*coords)[1] = corner+width;
52    (*coords)[2] = corner+width+height;
53    (*coords)[3] = corner+height;
54
55
56    geom->setVertexArray(coords);
57
58    osg::Vec3Array* norms = new osg::Vec3Array(1);
59    (*norms)[0] = width^height;
60    (*norms)[0].normalize();
61   
62    geom->setNormalArray(norms);
63    geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
64
65    osg::Vec2Array* tcoords = new osg::Vec2Array(4);
66    (*tcoords)[0].set(0.0f,0.0f);
67    (*tcoords)[1].set(1.0f,0.0f);
68    (*tcoords)[2].set(1.0f,1.0f);
69    (*tcoords)[3].set(0.0f,1.0f);
70    geom->setTexCoordArray(0,tcoords);
71   
72    osg::Vec4Array* colours = new osg::Vec4Array(1);
73    (*colours)[0].set(1.0f,1.0f,1.0f,1.0f);
74    geom->setColorArray(colours);
75    geom->setColorBinding(osg::Geometry::BIND_OVERALL);
76
77
78    geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
79   
80    if (image)
81    {
82        osg::StateSet* stateset = new osg::StateSet;
83        osg::Texture2D* texture = new osg::Texture2D;
84        texture->setImage(image);
85        stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
86        stateset->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
87        stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
88        stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
89        geom->setStateSet(stateset);
90    }
91   
92    return geom;
93}
94
95osg::Image* createBillboardImage(const osg::Vec4& centerColour, unsigned int size, float power)
96{
97    osg::Vec4 backgroundColour = centerColour;
98    backgroundColour[3] = 0.0f;
99   
100    osg::Image* image = new osg::Image;
101    image->allocateImage(size,size,1,
102                         GL_RGBA,GL_UNSIGNED_BYTE);
103     
104     
105    float mid = (float(size)-1)*0.5f;
106    float div = 2.0f/float(size);
107    for(unsigned int r=0;r<size;++r)
108    {
109        unsigned char* ptr = image->data(0,r,0);
110        for(unsigned int c=0;c<size;++c)
111        {
112            float dx = (float(c) - mid)*div;
113            float dy = (float(r) - mid)*div;
114            float r = powf(1.0f-sqrtf(dx*dx+dy*dy),power);
115            if (r<0.0f) r=0.0f;
116            osg::Vec4 color = centerColour*r+backgroundColour*(1.0f-r);
117            // color.set(1.0f,1.0f,1.0f,0.5f);
118            *ptr++ = (unsigned char)((color[0])*255.0f);
119            *ptr++ = (unsigned char)((color[1])*255.0f);
120            *ptr++ = (unsigned char)((color[2])*255.0f);
121            *ptr++ = (unsigned char)((color[3])*255.0f);
122        }
123    }
124    return image;
125
126    //return osgDB::readImageFile("spot.dds");
127}
128
129osg::AnimationPath* createAnimationPath(const osg::Vec3& center,float radius,double looptime)
130{
131    // set up the animation path
132    osg::AnimationPath* animationPath = new osg::AnimationPath;
133    animationPath->setLoopMode(osg::AnimationPath::LOOP);
134   
135    int numSamples = 1000;
136    float yaw = 0.0f;
137    float yaw_delta = -2.0f*osg::PI/((float)numSamples-1.0f);
138    float roll = osg::inDegrees(30.0f);
139   
140    double time=0.0f;
141    double time_delta = looptime/(double)numSamples;
142    for(int i=0;i<numSamples;++i)
143    {
144        osg::Vec3 position(center+osg::Vec3(sinf(yaw)*radius,cosf(yaw)*radius,0.0f));
145        osg::Quat rotation(osg::Quat(roll,osg::Vec3(0.0,1.0,0.0))*osg::Quat(-(yaw+osg::inDegrees(90.0f)),osg::Vec3(0.0,0.0,1.0)));
146       
147        animationPath->insert(time,osg::AnimationPath::ControlPoint(position,rotation));
148
149        yaw += yaw_delta;
150        time += time_delta;
151
152    }
153    return animationPath;   
154}// end createAnimationPath
155
156
157class SolarSystem
158{
159
160public:
161    double _radiusSpace;
162    double _radiusSun;
163    double _radiusMercury;
164    double _radiusVenus;
165    double _radiusEarth;
166    double _radiusMoon;
167    double _radiusMars;
168    double _radiusJupiter;
169
170    double _RorbitMercury;
171    double _RorbitVenus;
172    double _RorbitEarth;
173    double _RorbitMoon;
174    double _RorbitMars;
175    double _RorbitJupiter;
176
177    double _rotateSpeedSun;
178    double _rotateSpeedMercury;
179    double _rotateSpeedVenus;
180    double _rotateSpeedEarthAndMoon;
181    double _rotateSpeedEarth;
182    double _rotateSpeedMoon;
183    double _rotateSpeedMars;
184    double _rotateSpeedJupiter;
185
186    double _tiltEarth;
187
188    std::string _mapSpace;
189    std::string _mapSun;
190    std::string _mapVenus;   
191    std::string _mapMercury;   
192    std::string _mapEarth;
193    std::string _mapEarthNight;
194    std::string _mapMoon;
195    std::string _mapMars;
196    std::string _mapJupiter;
197   
198    double _rotateSpeedFactor;
199    double _RorbitFactor;
200    double _radiusFactor;
201   
202    SolarSystem()
203    {
204        _radiusSpace    = 500.0;
205        _radiusSun      = 109.0;
206        _radiusMercury  = 0.38;
207        _radiusVenus    = 0.95;
208        _radiusEarth    = 1.0;
209        _radiusMoon     = 0.1;
210        _radiusMars     = 0.53;
211        _radiusJupiter  = 5.0;
212       
213        _RorbitMercury  = 11.7;
214        _RorbitVenus    = 21.6;
215        _RorbitEarth    = 30.0;
216        _RorbitMoon     = 1.0;
217        _RorbitMars     = 45.0;
218        _RorbitJupiter  = 156.0;
219       
220                                                // orbital period in days
221        _rotateSpeedSun             = 0.0;      // should be 11.97;  // 30.5 average
222        _rotateSpeedMercury         = 4.15;     // 87.96
223        _rotateSpeedVenus           = 1.62;     // 224.70
224        _rotateSpeedEarthAndMoon    = 1.0;      // 365.25
225        _rotateSpeedEarth           = 1.0;      //
226        _rotateSpeedMoon            = 0.95;     //
227        _rotateSpeedMars            = 0.53;     // 686.98
228        _rotateSpeedJupiter         = 0.08;     // 4332.71
229
230        _tiltEarth                  = 23.45; // degrees
231       
232        _mapSpace       = "Images/spacemap2.jpg";
233        _mapSun         = "SolarSystem/sun256128.jpg";
234        _mapMercury     = "SolarSystem/mercury256128.jpg";
235        _mapVenus       = "SolarSystem/venus256128.jpg";
236        _mapEarth       = "Images/land_shallow_topo_2048.jpg";
237        _mapEarthNight  = "Images/land_ocean_ice_lights_2048.jpg";
238        _mapMoon        = "SolarSystem/moon256128.jpg";
239        _mapMars        = "SolarSystem/mars256128.jpg";
240        _mapJupiter     = "SolarSystem/jupiter256128.jpg";
241
242        _rotateSpeedFactor = 0.5;
243        _RorbitFactor   = 15.0;
244        _radiusFactor   = 10.0;
245    }
246   
247    osg::MatrixTransform* createTranslationAndTilt( double translation, double tilt );
248    osg::MatrixTransform* createRotation( double orbit, double speed );
249   
250    osg::Geode* createSpace( const std::string& name, const std::string& textureName );
251    osg::Geode* createPlanet( double radius, const std::string& name, const osg::Vec4& color , const std::string& textureName );
252    osg::Geode* createPlanet( double radius, const std::string& name, const osg::Vec4& color , const std::string& textureName1, const std::string& textureName2);
253    osg::Group* createSunLight();
254   
255    void rotateSpeedCorrection()
256    {
257        _rotateSpeedSun             *= _rotateSpeedFactor;
258        _rotateSpeedMercury         *= _rotateSpeedFactor;
259        _rotateSpeedVenus           *= _rotateSpeedFactor;
260        _rotateSpeedEarthAndMoon    *= _rotateSpeedFactor;
261        _rotateSpeedEarth           *= _rotateSpeedFactor;
262        _rotateSpeedMoon            *= _rotateSpeedFactor;
263        _rotateSpeedMars            *= _rotateSpeedFactor;
264        _rotateSpeedJupiter         *= _rotateSpeedFactor;
265       
266        std::cout << "rotateSpeed corrected by factor " << _rotateSpeedFactor << std::endl;
267    }
268   
269    void RorbitCorrection()
270    {
271        _RorbitMercury  *= _RorbitFactor;
272        _RorbitVenus    *= _RorbitFactor;
273        _RorbitEarth    *= _RorbitFactor;
274        _RorbitMoon     *= _RorbitFactor;
275        _RorbitMars     *= _RorbitFactor;
276        _RorbitJupiter  *= _RorbitFactor;
277       
278        std::cout << "Rorbits corrected by factor " << _RorbitFactor << std::endl;
279    }
280   
281    void radiusCorrection()
282    {
283        _radiusSpace    *= _radiusFactor;
284        //_radiusSun      *= _radiusFactor;
285        _radiusMercury  *= _radiusFactor;
286        _radiusVenus    *= _radiusFactor;
287        _radiusEarth    *= _radiusFactor;
288        _radiusMoon     *= _radiusFactor;
289        _radiusMars     *= _radiusFactor;
290        _radiusJupiter  *= _radiusFactor;
291 
292        std::cout << "Radius corrected by factor " << _radiusFactor << std::endl;
293    }
294    void printParameters();
295       
296};  // end SolarSystem
297
298class FindNamedNodeVisitor : public osg::NodeVisitor
299{
300public:
301    FindNamedNodeVisitor(const std::string& name):
302        osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN),
303        _name(name) {}
304   
305    virtual void apply(osg::Node& node)
306    {
307        if (node.getName()==_name)
308        {
309            _foundNodes.push_back(&node);
310        }
311        traverse(node);
312    }
313   
314    typedef std::vector< osg::ref_ptr<osg::Node> > NodeList;
315
316    std::string _name;
317    NodeList _foundNodes;
318};
319
320
321osg::MatrixTransform* SolarSystem::createRotation( double orbit, double speed )
322{
323    osg::Vec3 center( 0.0, 0.0, 0.0 );
324    float animationLength = 10.0f;
325    osg::AnimationPath* animationPath = createAnimationPath( center, orbit, animationLength );
326
327    osg::MatrixTransform* rotation = new osg::MatrixTransform;
328    rotation->setUpdateCallback( new osg::AnimationPathCallback( animationPath, 0.0f, speed ) );
329
330    return rotation;
331}// end SolarSystem::createEarthRotation
332
333
334osg::MatrixTransform* SolarSystem::createTranslationAndTilt( double /*translation*/, double tilt )
335{
336    osg::MatrixTransform* moonPositioned = new osg::MatrixTransform;
337    moonPositioned->setMatrix(osg::Matrix::translate(osg::Vec3( 0.0, _RorbitMoon, 0.0 ) )*
338                                 osg::Matrix::scale(1.0, 1.0, 1.0)*
339                                 osg::Matrix::rotate(osg::inDegrees( tilt ),0.0f,0.0f,1.0f));
340
341    return moonPositioned;
342}// end SolarSystem::createTranslationAndTilt
343   
344   
345osg::Geode* SolarSystem::createSpace( const std::string& name, const std::string& textureName )
346{
347    osg::Sphere *spaceSphere = new osg::Sphere( osg::Vec3( 0.0, 0.0, 0.0 ), _radiusSpace );
348
349    osg::ShapeDrawable *sSpaceSphere = new osg::ShapeDrawable( spaceSphere );
350
351    if( !textureName.empty() )
352    {
353        osg::Image* image = osgDB::readImageFile( textureName );
354        if ( image )
355        {
356            sSpaceSphere->getOrCreateStateSet()->setTextureAttributeAndModes( 0, new osg::Texture2D( image ), osg::StateAttribute::ON );
357
358            // reset the object color to white to allow the texture to set the colour.
359            sSpaceSphere->setColor( osg::Vec4(1.0f,1.0f,1.0f,1.0f) );
360        }
361    }
362
363    osg::Geode* geodeSpace = new osg::Geode();
364    geodeSpace->setName( name );
365
366    geodeSpace->addDrawable( sSpaceSphere );
367
368    return( geodeSpace );
369
370}// end SolarSystem::createSpace
371
372   
373osg::Geode* SolarSystem::createPlanet( double radius, const std::string& name, const osg::Vec4& color , const std::string& textureName)
374{
375    // create a container that makes the sphere drawable
376    osg::Geometry *sPlanetSphere = new osg::Geometry();
377
378    {
379        // set the single colour so bind overall
380        osg::Vec4Array* colours = new osg::Vec4Array(1);
381        (*colours)[0] = color;
382        sPlanetSphere->setColorArray(colours);
383        sPlanetSphere->setColorBinding(osg::Geometry::BIND_OVERALL);
384
385
386        // now set up the coords, normals and texcoords for geometry
387        unsigned int numX = 100;
388        unsigned int numY = 50;
389        unsigned int numVertices = numX*numY;
390
391        osg::Vec3Array* coords = new osg::Vec3Array(numVertices);
392        sPlanetSphere->setVertexArray(coords);
393
394        osg::Vec3Array* normals = new osg::Vec3Array(numVertices);
395        sPlanetSphere->setNormalArray(normals);
396        sPlanetSphere->setNormalBinding(osg::Geometry::BIND_PER_VERTEX);
397
398        osg::Vec2Array* texcoords = new osg::Vec2Array(numVertices);
399        sPlanetSphere->setTexCoordArray(0,texcoords);
400        sPlanetSphere->setTexCoordArray(1,texcoords);
401
402        double delta_elevation = osg::PI / (double)(numY-1);
403        double delta_azim = 2.0*osg::PI / (double)(numX-1);
404        float delta_tx = 1.0 / (float)(numX-1);
405        float delta_ty = 1.0 / (float)(numY-1);
406
407        double elevation = -osg::PI*0.5;
408        float ty = 0.0;
409        unsigned int vert = 0;
410        unsigned j;
411        for(j=0;
412            j<numY;
413            ++j, elevation+=delta_elevation, ty+=delta_ty )
414        {
415            double azim = 0.0;
416            float tx = 0.0;
417            for(unsigned int i=0;
418                i<numX;
419                ++i, ++vert, azim+=delta_azim, tx+=delta_tx)
420            {
421                osg::Vec3 direction(cos(azim)*cos(elevation), sin(azim)*cos(elevation), sin(elevation));
422                (*coords)[vert].set(direction*radius);
423                (*normals)[vert].set(direction);
424                (*texcoords)[vert].set(tx,ty);
425            }
426        }
427
428        for(j=0;
429            j<numY-1;
430            ++j)
431        {
432            unsigned int curr_row = j*numX;
433            unsigned int next_row = curr_row+numX;
434            osg::DrawElementsUShort* elements = new osg::DrawElementsUShort(GL_QUAD_STRIP);
435            for(unsigned int i=0;
436                i<numX;
437                ++i)
438            {
439                elements->push_back(next_row + i);
440                elements->push_back(curr_row + i);
441            }
442            sPlanetSphere->addPrimitiveSet(elements);
443        }
444    }
445   
446
447    // set the object color
448    //sPlanetSphere->setColor( color );
449
450    // create a geode object to as a container for our drawable sphere object
451    osg::Geode* geodePlanet = new osg::Geode();
452    geodePlanet->setName( name );
453
454    if( !textureName.empty() )
455    {
456        osg::Image* image = osgDB::readImageFile( textureName );
457        if ( image )
458        {
459            osg::Texture2D* tex2d = new osg::Texture2D( image );
460            tex2d->setWrap( osg::Texture::WRAP_S, osg::Texture::REPEAT );
461            tex2d->setWrap( osg::Texture::WRAP_T, osg::Texture::REPEAT );
462            geodePlanet->getOrCreateStateSet()->setTextureAttributeAndModes( 0, tex2d, osg::StateAttribute::ON );
463
464            // reset the object color to white to allow the texture to set the colour.
465            //sPlanetSphere->setColor( osg::Vec4(1.0f,1.0f,1.0f,1.0f) );
466        }
467    }
468
469    // add our drawable sphere to the geode container
470    geodePlanet->addDrawable( sPlanetSphere );
471
472    return( geodePlanet );
473
474}// end SolarSystem::createPlanet
475   
476osg::Geode* SolarSystem::createPlanet( double radius, const std::string& name, const osg::Vec4& color , const std::string& textureName1, const std::string& textureName2)
477{
478    osg::Geode* geodePlanet = createPlanet( radius, name, color , textureName1);
479   
480    if( !textureName2.empty() )
481    {
482        osg::Image* image = osgDB::readImageFile( textureName2 );
483        if ( image )
484        {
485            osg::StateSet* stateset = geodePlanet->getOrCreateStateSet();
486           
487            osg::TexEnvCombine* texenv = new osg::TexEnvCombine;
488           
489            texenv->setCombine_RGB(osg::TexEnvCombine::INTERPOLATE);
490            texenv->setSource0_RGB(osg::TexEnvCombine::PREVIOUS);
491            texenv->setOperand0_RGB(osg::TexEnvCombine::SRC_COLOR);
492            texenv->setSource1_RGB(osg::TexEnvCombine::TEXTURE);
493            texenv->setOperand1_RGB(osg::TexEnvCombine::SRC_COLOR);
494            texenv->setSource2_RGB(osg::TexEnvCombine::PRIMARY_COLOR);
495            texenv->setOperand2_RGB(osg::TexEnvCombine::SRC_COLOR);
496
497            stateset->setTextureAttribute( 1, texenv );
498            osg::Texture2D* tex2d = new osg::Texture2D( image );
499            tex2d->setWrap( osg::Texture::WRAP_S, osg::Texture::REPEAT );
500            tex2d->setWrap( osg::Texture::WRAP_T, osg::Texture::REPEAT );
501            stateset->setTextureAttributeAndModes( 1, tex2d, osg::StateAttribute::ON );
502        }
503    }
504
505    return( geodePlanet );
506
507}// end SolarSystem::createPlanet
508
509osg::Group* SolarSystem::createSunLight()
510{
511
512    osg::LightSource* sunLightSource = new osg::LightSource;
513
514    osg::Light* sunLight = sunLightSource->getLight();
515    sunLight->setPosition( osg::Vec4( 0.0f, 0.0f, 0.0f, 1.0f ) );
516    sunLight->setAmbient( osg::Vec4( 0.0f, 0.0f, 0.0f, 1.0f ) );
517
518    sunLightSource->setLight( sunLight );
519    sunLightSource->setLocalStateSetModes( osg::StateAttribute::ON );
520    sunLightSource->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::ON);
521
522    osg::LightModel* lightModel = new osg::LightModel;
523    lightModel->setAmbientIntensity(osg::Vec4(0.0f,0.0f,0.0f,1.0f));
524    sunLightSource->getOrCreateStateSet()->setAttribute(lightModel);
525
526
527    return sunLightSource;
528}// end SolarSystem::createSunLight
529   
530void SolarSystem::printParameters()
531{
532    std::cout << "radiusSpace(" << _radiusSpace << ")" << std::endl;
533    std::cout << "radiusSun(" << _radiusSun << ")" << std::endl;
534    std::cout << "radiusMercury(" << _radiusMercury << ")" << std::endl;
535    std::cout << "radiusVenus(" << _radiusVenus << ")" << std::endl;
536    std::cout << "radiusEarth(" << _radiusEarth << ")" << std::endl;
537    std::cout << "radiusMoon(" << _radiusMoon << ")" << std::endl;
538    std::cout << "radiusMars(" << _radiusMars << ")" << std::endl;
539    std::cout << "radiusJupiter(" << _radiusJupiter << ")" << std::endl;
540
541    std::cout << "RorbitMercury(" << _RorbitMercury << ")" << std::endl;
542    std::cout << "RorbitVenus(" << _RorbitVenus << ")" << std::endl;
543    std::cout << "RorbitEarth(" << _RorbitEarth << ")" << std::endl;
544    std::cout << "RorbitMoon(" << _RorbitMoon << ")" << std::endl;
545    std::cout << "RorbitMars(" << _RorbitMars << ")" << std::endl;
546    std::cout << "RorbitJupiter(" << _RorbitJupiter << ")" << std::endl;
547
548    std::cout << "rotateSpeedMercury(" << _rotateSpeedMercury << ")" << std::endl;
549    std::cout << "rotateSpeedVenus(" << _rotateSpeedVenus << ")" << std::endl;
550    std::cout << "rotateSpeedEarthAndMoon(" << _rotateSpeedEarthAndMoon << ")" << std::endl;
551    std::cout << "rotateSpeedEarth(" << _rotateSpeedEarth << ")" << std::endl;
552    std::cout << "rotateSpeedMoon(" << _rotateSpeedMoon << ")" << std::endl;
553    std::cout << "rotateSpeedMars(" << _rotateSpeedMars << ")" << std::endl;
554    std::cout << "rotateSpeedJupiter(" << _rotateSpeedJupiter << ")" << std::endl;
555
556    std::cout << "tiltEarth(" << _tiltEarth << ")" << std::endl;
557
558    std::cout << "mapSpace(" << _mapSpace << ")" << std::endl;
559    std::cout << "mapSun(" << _mapSun << ")" << std::endl;
560    std::cout << "mapMercury(" << _mapMercury << ")" << std::endl;
561    std::cout << "mapVenus(" << _mapVenus << ")" << std::endl;
562    std::cout << "mapEarth(" << _mapEarth << ")" << std::endl;
563    std::cout << "mapEarthNight(" << _mapEarthNight << ")" << std::endl;
564    std::cout << "mapMoon(" << _mapMoon << ")" << std::endl;
565    std::cout << "mapMars(" << _mapMars << ")" << std::endl;
566    std::cout << "mapJupiter(" << _mapJupiter << ")" << std::endl;
567   
568    std::cout << "rotateSpeedFactor(" << _rotateSpeedFactor << ")" << std::endl;
569    std::cout << "RorbitFactor(" << _RorbitFactor << ")" << std::endl;
570    std::cout << "radiusFactor(" << _radiusFactor << ")" << std::endl;
571}
572
573
574int main( int argc, char **argv )
575{
576    // use an ArgumentParser object to manage the program arguments.
577    osg::ArgumentParser arguments(&argc,argv);
578
579    // set up the usage document, in case we need to print out how to use this program.
580    arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use of osg::AnimationPath and UpdateCallbacks for adding animation to your scenes.");
581    arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] filename ...");
582    arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
583    arguments.getApplicationUsage()->addCommandLineOption("-o <filename>","Write created model to file");
584
585    // initialize the viewer.
586    osgViewer::Viewer viewer;
587
588    osg::ref_ptr<osgGA::KeySwitchMatrixManipulator> keyswitchManipulator = new osgGA::KeySwitchMatrixManipulator;
589    viewer.setCameraManipulator( keyswitchManipulator.get() );
590
591    SolarSystem solarSystem;
592
593    while (arguments.read("--radiusSpace",solarSystem._radiusSpace)) { }
594    while (arguments.read("--radiusSun",solarSystem._radiusSun)) { }
595    while (arguments.read("--radiusMercury",solarSystem._radiusMercury)) { }
596    while (arguments.read("--radiusVenus",solarSystem._radiusVenus)) { }
597    while (arguments.read("--radiusEarth",solarSystem._radiusEarth)) { }
598    while (arguments.read("--radiusMoon",solarSystem._radiusMoon)) { }
599    while (arguments.read("--radiusMars",solarSystem._radiusMars)) { }
600    while (arguments.read("--radiusJupiter",solarSystem._radiusJupiter)) { }
601   
602    while (arguments.read("--RorbitEarth",solarSystem._RorbitEarth)) { }
603    while (arguments.read("--RorbitMoon",solarSystem._RorbitMoon)) { }
604   
605    while (arguments.read("--rotateSpeedEarthAndMoon",solarSystem._rotateSpeedEarthAndMoon)) { }
606    while (arguments.read("--rotateSpeedEarth",solarSystem._rotateSpeedEarth)) { }
607    while (arguments.read("--rotateSpeedMoon",solarSystem._rotateSpeedMoon)) { }
608    while (arguments.read("--tiltEarth",solarSystem._tiltEarth)) { }
609   
610    while (arguments.read("--mapSpace",solarSystem._mapSpace)) { }
611    while (arguments.read("--mapEarth",solarSystem._mapEarth)) { }
612    while (arguments.read("--mapEarthNight",solarSystem._mapEarthNight)) { }
613    while (arguments.read("--mapMoon",solarSystem._mapMoon)) { }
614
615    while (arguments.read("--rotateSpeedFactor",solarSystem._rotateSpeedFactor)) { }
616    while (arguments.read("--RorbitFactor",solarSystem._RorbitFactor)) { }
617    while (arguments.read("--radiusFactor",solarSystem._radiusFactor)) { }
618   
619    solarSystem.rotateSpeedCorrection();
620    solarSystem.RorbitCorrection();
621    solarSystem.radiusCorrection();
622   
623    std::string writeFileName;
624    while (arguments.read("-o",writeFileName)) { }
625   
626   
627    osgGA::NodeTrackerManipulator::TrackerMode trackerMode = osgGA::NodeTrackerManipulator::NODE_CENTER_AND_ROTATION;
628    std::string mode;
629    while (arguments.read("--tracker-mode",mode))
630    {
631        if (mode=="NODE_CENTER_AND_ROTATION") trackerMode = osgGA::NodeTrackerManipulator::NODE_CENTER_AND_ROTATION;
632        else if (mode=="NODE_CENTER_AND_AZIM") trackerMode = osgGA::NodeTrackerManipulator::NODE_CENTER_AND_AZIM;
633        else if (mode=="NODE_CENTER") trackerMode = osgGA::NodeTrackerManipulator::NODE_CENTER;
634        else
635        {
636            std::cout<<"Unrecognized --tracker-mode option "<<mode<<", valid options are:"<<std::endl;
637            std::cout<<"    NODE_CENTER_AND_ROTATION"<<std::endl;
638            std::cout<<"    NODE_CENTER_AND_AZIM"<<std::endl;
639            std::cout<<"    NODE_CENTER"<<std::endl;
640            return 1;
641        }
642    }
643   
644   
645    osgGA::NodeTrackerManipulator::RotationMode rotationMode = osgGA::NodeTrackerManipulator::TRACKBALL;
646    while (arguments.read("--rotation-mode",mode))
647    {
648        if (mode=="TRACKBALL") rotationMode = osgGA::NodeTrackerManipulator::TRACKBALL;
649        else if (mode=="ELEVATION_AZIM") rotationMode = osgGA::NodeTrackerManipulator::ELEVATION_AZIM;
650        else
651        {
652            std::cout<<"Unrecognized --rotation-mode option "<<mode<<", valid options are:"<<std::endl;
653            std::cout<<"    TRACKBALL"<<std::endl;
654            std::cout<<"    ELEVATION_AZIM"<<std::endl;
655            return 1;
656        }
657    }
658   
659
660    // solarSystem.printParameters();
661
662    // if user request help write it out to cout.
663    if (arguments.read("-h") || arguments.read("--help"))
664    {
665        std::cout << "setup the following arguments: " << std::endl;
666        std::cout << "\t--radiusSpace: double" << std::endl;
667        std::cout << "\t--radiusSun: double" << std::endl;
668        std::cout << "\t--radiusMercury: double" << std::endl;
669        std::cout << "\t--radiusVenus: double" << std::endl;
670        std::cout << "\t--radiusEarth: double" << std::endl;
671        std::cout << "\t--radiusMoon: double" << std::endl;
672        std::cout << "\t--radiusMars: double" << std::endl;
673        std::cout << "\t--radiusJupiter: double" << std::endl;
674       
675        std::cout << "\t--RorbitMercury: double" << std::endl;
676        std::cout << "\t--RorbitVenus: double" << std::endl;
677        std::cout << "\t--RorbitEarth: double" << std::endl;
678        std::cout << "\t--RorbitMoon: double" << std::endl;
679        std::cout << "\t--RorbitMars: double" << std::endl;
680        std::cout << "\t--RorbitJupiter: double" << std::endl;
681       
682        std::cout << "\t--rotateSpeedMercury: double" << std::endl;
683        std::cout << "\t--rotateSpeedVenus: double" << std::endl;
684        std::cout << "\t--rotateSpeedEarthAndMoon: double" << std::endl;
685        std::cout << "\t--rotateSpeedEarth: double" << std::endl;
686        std::cout << "\t--rotateSpeedMoon: double" << std::endl;
687        std::cout << "\t--rotateSpeedMars: double" << std::endl;
688        std::cout << "\t--rotateSpeedJupiter: double" << std::endl;
689
690        std::cout << "\t--tiltEarth: double" << std::endl;
691       
692        std::cout << "\t--mapSpace: string" << std::endl;
693        std::cout << "\t--mapSun: string" << std::endl;
694        std::cout << "\t--mapMercury: string" << std::endl;
695        std::cout << "\t--mapVenus: string" << std::endl;
696        std::cout << "\t--mapEarth: string" << std::endl;
697        std::cout << "\t--mapEarthNight: string" << std::endl;
698        std::cout << "\t--mapMoon: string" << std::endl;
699        std::cout << "\t--mapMars: string" << std::endl;
700        std::cout << "\t--mapJupiter: string" << std::endl;
701       
702        std::cout << "\t--rotateSpeedFactor: string" << std::endl;
703        std::cout << "\t--RorbitFactor: string" << std::endl;
704        std::cout << "\t--radiusFactor: string" << std::endl;
705                       
706        return 1;
707    }
708
709    // any option left unread are converted into errors to write out later.
710    arguments.reportRemainingOptionsAsUnrecognized();
711
712    // report any errors if they have occured when parsing the program aguments.
713    if (arguments.errors())
714    {
715        arguments.writeErrorMessages(std::cout);
716        return 1;
717    }
718   
719   
720    osg::Group* root = new osg::Group;
721   
722    osg::ClearNode* clearNode = new osg::ClearNode;
723    clearNode->setClearColor(osg::Vec4(0.0f,0.0f,0.0f,1.0f));
724    root->addChild(clearNode);
725
726    osg::Group* sunLight = solarSystem.createSunLight();
727    root->addChild(sunLight);
728
729    // create the sun
730    osg::Node* solarSun = solarSystem.createPlanet( solarSystem._radiusSun, "Sun", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f), solarSystem._mapSun );
731    osg::StateSet* sunStateSet = solarSun->getOrCreateStateSet();
732    osg::Material* material = new osg::Material;
733    material->setEmission( osg::Material::FRONT_AND_BACK, osg::Vec4( 1.0f, 1.0f, 0.0f, 0.0f ) );
734    sunStateSet->setAttributeAndModes( material, osg::StateAttribute::ON );
735
736    osg::Billboard* sunBillboard = new osg::Billboard();
737    sunBillboard->setMode(osg::Billboard::POINT_ROT_EYE);
738    sunBillboard->addDrawable(
739        createSquare(osg::Vec3(-150.0f,0.0f,-150.0f),osg::Vec3(300.0f,0.0f,0.0f),osg::Vec3(0.0f,0.0f,300.0f),createBillboardImage( osg::Vec4( 1.0, 1.0, 0, 1.0f), 64, 1.0) ),
740        osg::Vec3(0.0f,0.0f,0.0f));
741       
742    sunLight->addChild( sunBillboard );
743
744
745    // stick sun right under root, no transformations for the sun
746    sunLight->addChild( solarSun );
747
748    // create light source in the sun
749
750/*
751*********************************************
752**  earthMoonGroup and Transformations
753*********************************************
754*/
755    // create earth and moon
756    osg::Node* earth = solarSystem.createPlanet( solarSystem._radiusEarth, "Earth", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f), solarSystem._mapEarth, solarSystem._mapEarthNight );
757    osg::Node* moon = solarSystem.createPlanet( solarSystem._radiusMoon, "Moon", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f), solarSystem._mapMoon );
758
759    // create transformations for the earthMoonGroup
760    osg::MatrixTransform* aroundSunRotationEarthMoonGroup = solarSystem.createRotation( solarSystem._RorbitEarth, solarSystem._rotateSpeedEarthAndMoon );
761//    osg::MatrixTransform* earthMoonGroupPosition = solarSystem.createTranslationAndTilt( solarSystem._RorbitEarth, solarSystem._tiltEarth );
762    osg::MatrixTransform* earthMoonGroupPosition = solarSystem.createTranslationAndTilt( solarSystem._RorbitEarth, 0.0 );
763
764
765    //Group with earth and moon under it
766    osg::Group* earthMoonGroup = new osg::Group;
767   
768    //transformation to rotate the earth around itself
769    osg::MatrixTransform* earthAroundItselfRotation = solarSystem.createRotation ( 0.0, solarSystem._rotateSpeedEarth );
770
771    //transformations for the moon
772    osg::MatrixTransform* moonAroundEarthRotation = solarSystem.createRotation( solarSystem._RorbitMoon, solarSystem._rotateSpeedMoon );
773    osg::MatrixTransform* moonTranslation = solarSystem.createTranslationAndTilt( solarSystem._RorbitMoon, 0.0 );
774
775
776    moonTranslation->addChild( moon );
777    moonAroundEarthRotation->addChild( moonTranslation );
778    earthMoonGroup->addChild( moonAroundEarthRotation );
779
780    earthAroundItselfRotation->addChild( earth );
781    earthMoonGroup->addChild( earthAroundItselfRotation );
782   
783    earthMoonGroupPosition->addChild( earthMoonGroup );
784
785    aroundSunRotationEarthMoonGroup->addChild( earthMoonGroupPosition );
786
787    sunLight->addChild( aroundSunRotationEarthMoonGroup );
788/*
789*********************************************
790**  end earthMoonGroup and Transformations
791*********************************************
792*/
793
794/*
795*********************************************
796**  Mercury and Transformations
797*********************************************
798*/
799    osg::Node* mercury = solarSystem.createPlanet( solarSystem._radiusMercury, "Mercury", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f ), solarSystem._mapMercury, "" );
800   
801    osg::MatrixTransform* aroundSunRotationMercury = solarSystem.createRotation( solarSystem._RorbitMercury, solarSystem._rotateSpeedMercury );
802    osg::MatrixTransform* mercuryPosition = solarSystem.createTranslationAndTilt( solarSystem._RorbitMercury, 0.0f );
803   
804    mercuryPosition->addChild( mercury );
805    aroundSunRotationMercury->addChild( mercuryPosition );
806   
807    sunLight->addChild( aroundSunRotationMercury );
808/*
809*********************************************
810**  end Mercury and Transformations
811*********************************************
812*/
813
814/*
815*********************************************
816**  Venus and Transformations
817*********************************************
818*/
819    osg::Node* venus = solarSystem.createPlanet( solarSystem._radiusVenus, "Venus", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f ), solarSystem._mapVenus, "" );
820   
821    osg::MatrixTransform* aroundSunRotationVenus = solarSystem.createRotation( solarSystem._RorbitVenus, solarSystem._rotateSpeedVenus );
822    osg::MatrixTransform* venusPosition = solarSystem.createTranslationAndTilt( solarSystem._RorbitVenus, 0.0f );
823   
824    venusPosition->addChild( venus );
825    aroundSunRotationVenus->addChild( venusPosition );
826   
827    sunLight->addChild( aroundSunRotationVenus );
828/*
829*********************************************
830**  end Venus and Transformations
831*********************************************
832*/
833
834/*
835*********************************************
836**  Mars and Transformations
837*********************************************
838*/
839    osg::Node* mars = solarSystem.createPlanet( solarSystem._radiusMars, "Mars", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f ), solarSystem._mapMars, "" );
840   
841    osg::MatrixTransform* aroundSunRotationMars = solarSystem.createRotation( solarSystem._RorbitMars, solarSystem._rotateSpeedMars );
842    osg::MatrixTransform* marsPosition = solarSystem.createTranslationAndTilt( solarSystem._RorbitMars, 0.0f );
843   
844    marsPosition->addChild( mars );
845    aroundSunRotationMars->addChild( marsPosition );
846   
847    sunLight->addChild( aroundSunRotationMars );
848/*
849*********************************************
850**  end Mars and Transformations
851*********************************************
852*/
853
854/*
855*********************************************
856**  Jupiter and Transformations
857*********************************************
858*/
859    osg::Node* jupiter = solarSystem.createPlanet( solarSystem._radiusJupiter, "Jupiter", osg::Vec4( 1.0f, 1.0f, 1.0f, 1.0f ), solarSystem._mapJupiter, "" );
860   
861    osg::MatrixTransform* aroundSunRotationJupiter = solarSystem.createRotation( solarSystem._RorbitJupiter, solarSystem._rotateSpeedJupiter );
862    osg::MatrixTransform* jupiterPosition = solarSystem.createTranslationAndTilt( solarSystem._RorbitJupiter, 0.0f );
863   
864    jupiterPosition->addChild( jupiter );
865    aroundSunRotationJupiter->addChild( jupiterPosition );
866   
867    sunLight->addChild( aroundSunRotationJupiter );
868/*
869*********************************************
870**  end Jupiter and Transformations
871*********************************************
872*/
873
874/*
875    // add space, but don't light it, as its not illuminated by our sun
876    osg::Node* space = solarSystem.createSpace( "Space", solarSystem._mapSpace );
877    space->getOrCreateStateSet()->setMode(GL_LIGHTING, osg::StateAttribute::OFF);
878    root->addChild( space );
879*/   
880     
881    if (!writeFileName.empty())
882    {
883        osgDB::writeNodeFile(*root, writeFileName);
884        std::cout<<"Written solar system to \""<<writeFileName<<"\""<<std::endl;
885        return 0;
886    }
887
888
889    // run optimization over the scene graph
890    osgUtil::Optimizer optimzer;
891    optimzer.optimize( root );
892     
893    // set the scene to render
894    viewer.setSceneData( root );
895
896
897    // set up tracker manipulators, once for each astral body
898    {
899        FindNamedNodeVisitor fnnv("Moon");
900        root->accept(fnnv);
901
902        if (!fnnv._foundNodes.empty())
903        {
904            // set up the node tracker.
905            osgGA::NodeTrackerManipulator* tm = new osgGA::NodeTrackerManipulator;
906            tm->setTrackerMode( trackerMode );
907            tm->setRotationMode( rotationMode );
908            tm->setTrackNode( fnnv._foundNodes.front().get() );
909
910            unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
911            keyswitchManipulator->addMatrixManipulator( 'm', "moon", tm );
912            keyswitchManipulator->selectMatrixManipulator( num );
913        }
914    }   
915
916    {
917        FindNamedNodeVisitor fnnv("Earth");
918        root->accept(fnnv);
919
920        if (!fnnv._foundNodes.empty())
921        {
922            // set up the node tracker.
923            osgGA::NodeTrackerManipulator* tm = new osgGA::NodeTrackerManipulator;
924            tm->setTrackerMode( trackerMode );
925            tm->setRotationMode( rotationMode );
926            tm->setTrackNode( fnnv._foundNodes.front().get() );
927
928            unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
929            keyswitchManipulator->addMatrixManipulator( 'e', "earth", tm);
930            keyswitchManipulator->selectMatrixManipulator( num );
931        }
932    }   
933   
934    {
935        FindNamedNodeVisitor fnnv("Sun");
936        root->accept(fnnv);
937
938        if (!fnnv._foundNodes.empty())
939        {
940            // set up the node tracker.
941            osgGA::NodeTrackerManipulator* tm = new osgGA::NodeTrackerManipulator;
942            tm->setTrackerMode( trackerMode );
943            tm->setRotationMode( rotationMode );
944            tm->setTrackNode( fnnv._foundNodes.front().get() );
945
946            unsigned int num = keyswitchManipulator->getNumMatrixManipulators();
947            keyswitchManipulator->addMatrixManipulator( 's', "sun", tm);
948            keyswitchManipulator->selectMatrixManipulator( num );
949        }
950    }   
951
952    return viewer.run();
953
954}// end main
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