Added gemetry of photo album and page turning animation.
This commit is contained in:
Robert Osfield
parent
caaed0d8b8
commit
ff6b9099cf
@ -42,19 +42,19 @@ class ImageReaderWriter : public osgDB::ReaderWriter
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_fileName(),
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_resolutionX(256),
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_resolutionY(256),
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_center(0.0f,0.0f,0.0f),
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_center(0.625f,0.0f,0.0f),
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_maximumWidth(1.25f,0.0f,0.0f),
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_maximumHeight(0.0f,0.0f,1.0f),
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_numPointsAcross(10),
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_numPointsUp(10) {}
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DataReference(const std::string& fileName, unsigned int res):
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DataReference(const std::string& fileName, unsigned int res, float width, float height):
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_fileName(fileName),
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_resolutionX(res),
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_resolutionY(res),
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_center(0.0f,0.0f,0.0f),
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_maximumWidth(1.25f,0.0f,0.0f),
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_maximumHeight(0.0f,0.0f,1.0f),
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_center(width*0.5f,0.0f,height*0.5f),
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_maximumWidth(width,0.0f,0.0f),
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_maximumHeight(0.0f,0.0f,height),
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_numPointsAcross(10),
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_numPointsUp(10) {}
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@ -81,13 +81,13 @@ class ImageReaderWriter : public osgDB::ReaderWriter
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typedef std::map<std::string,DataReference> DataReferenceMap;
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DataReferenceMap _dataReferences;
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std::string insertReference(const std::string& fileName, unsigned int res)
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std::string insertReference(const std::string& fileName, unsigned int res, float width, float height)
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{
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std::stringstream ostr;
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ostr<<"res_"<<res<<"_"<<fileName;
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std::string myReference = ostr.str();
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_dataReferences[myReference] = DataReference(fileName,res);
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_dataReferences[myReference] = DataReference(fileName,res,width,height);
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return myReference;
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}
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@ -122,7 +122,75 @@ class ImageReaderWriter : public osgDB::ReaderWriter
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float s = options.valid()?options->_sourcePixelWindow.windowWidth:1.0f;
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float t = options.valid()?options->_sourcePixelWindow.windowHeight:1.0f;
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osg::Geode* geode = osg::createGeodeForImage(image,s,t);
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float photoWidth = 0.0f;
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float photoHeight = 0.0f;
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float maxWidth = dr._maximumWidth.length();
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float maxHeight = dr._maximumHeight.length();
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if ((s/t)>(maxWidth/maxHeight))
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{
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// photo wider than tall relative to the required pictures size.
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// so need to clamp the width to the maximum width and then
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// set the height to keep the original photo aspect ratio.
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photoWidth = maxWidth;
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photoHeight = photoWidth*(t/s);
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}
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else
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{
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// photo tall than wide relative to the required pictures size.
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// so need to clamp the height to the maximum height and then
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// set the width to keep the original photo aspect ratio.
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photoHeight = maxHeight;
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photoWidth = photoHeight*(s/t);
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}
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osg::Vec3 halfWidthVector(dr._maximumWidth*(photoWidth*0.5f/maxWidth));
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osg::Vec3 halfHeightVector(dr._maximumHeight*(photoHeight*0.5f/maxHeight));
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// set up the texture.
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osg::Texture2D* texture = new osg::Texture2D;
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texture->setImage(image);
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texture->setFilter(osg::Texture::MIN_FILTER,osg::Texture::LINEAR);
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texture->setFilter(osg::Texture::MAG_FILTER,osg::Texture::LINEAR);
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// set up the drawstate.
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osg::StateSet* dstate = new osg::StateSet;
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dstate->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
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dstate->setTextureAttributeAndModes(0, texture,osg::StateAttribute::ON);
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// set up the geoset.
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osg::Geometry* geom = new osg::Geometry;
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geom->setStateSet(dstate);
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osg::Vec3Array* coords = new osg::Vec3Array(4);
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(*coords)[0] = dr._center - halfWidthVector + halfHeightVector;
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(*coords)[1] = dr._center - halfWidthVector - halfHeightVector;
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(*coords)[2] = dr._center + halfWidthVector - halfHeightVector;
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(*coords)[3] = dr._center + halfWidthVector + halfHeightVector;
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geom->setVertexArray(coords);
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osg::Vec2Array* tcoords = new osg::Vec2Array(4);
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(*tcoords)[0].set(0.0f,1.0f);
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(*tcoords)[1].set(0.0f,0.0f);
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(*tcoords)[2].set(1.0f,0.0f);
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(*tcoords)[3].set(1.0f,1.0f);
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geom->setTexCoordArray(0,tcoords);
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osg::Vec4Array* colours = new osg::Vec4Array(1);
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(*colours)[0].set(1.0f,1.0f,1.0,1.0f);
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geom->setColorArray(colours);
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geom->setColorBinding(osg::Geometry::BIND_OVERALL);
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geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
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// set up the geode.
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geom);
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return geode;
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}
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@ -141,11 +209,407 @@ class ImageReaderWriter : public osgDB::ReaderWriter
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// reader/writer.
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osgDB::RegisterReaderWriterProxy<ImageReaderWriter> g_ImageReaderWriter;
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class Album;
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class Page : public osg::Transform
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{
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public:
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typedef std::vector<std::string> FileList;
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static Page* createPage(Album* album, unsigned int pageNo, const std::string& filename, float width, float height)
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{
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osg::ref_ptr<Page> page = new Page(album, pageNo, filename, width, height);
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if (page.valid()) return page.release();
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else return 0;
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}
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virtual void traverse(osg::NodeVisitor& nv);
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class SlideEventHandler : public osgGA::GUIEventHandler, public osg::NodeCallback
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void setRotation(float angle)
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{
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_rotation = angle;
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_targetRotation = angle;
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dirtyBound();
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}
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float getRotation() const { return _rotation; }
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void rotateTo(float angle, float timeToRotateBy)
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{
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_targetRotation = angle;
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_targetTime = timeToRotateBy;
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}
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bool rotating() const { return _targetRotation!=_rotation; }
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void setPageVisible(bool visible) { _switch->setSingleChildOn(visible?1:0); }
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osg::Switch* getSwitch() { return _switch.get(); }
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const osg::Switch* getSwitch() const { return _switch.get(); }
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public:
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virtual bool computeLocalToWorldMatrix(osg::Matrix& matrix,osg::NodeVisitor*) const
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{
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if (_referenceFrame==RELATIVE_TO_PARENTS)
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{
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matrix.preMult(getMatrix());
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}
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else // absolute
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{
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matrix = getMatrix();
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}
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return true;
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}
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/** Get the transformation matrix which moves from world coords to local coords.*/
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virtual bool computeWorldToLocalMatrix(osg::Matrix& matrix,osg::NodeVisitor*) const
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{
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const osg::Matrix& inverse = getInverseMatrix();
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if (_referenceFrame==RELATIVE_TO_PARENTS)
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{
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matrix.postMult(inverse);
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}
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else // absolute
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{
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matrix = inverse;
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}
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return true;
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}
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osg::Matrix getMatrix() const { return _pageOffset*osg::Matrix::rotate(-_rotation,0.0f,0.0f,1.0f); }
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osg::Matrix getInverseMatrix() const { return osg::Matrix::inverse(getMatrix()); }
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protected:
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Page(Album* album, unsigned int pageNo, const std::string& filename, float width, float height);
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float _rotation;
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osg::Matrix _pageOffset;
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float _targetRotation;
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float _targetTime;
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float _lastTimeTraverse;
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osg::ref_ptr<osg::Switch> _switch;
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};
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class Album : public osg::Referenced
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{
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public:
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Album(osg::ArgumentParser& ap, float width, float height);
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osg::Group* getScene() { return _group.get(); }
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const osg::Group* getScene() const { return _group.get(); }
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osg::Matrix getPageOffset(unsigned int pageNo) const;
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bool nextPage(float timeToRotateBy) { return gotoPage(_currentPageNo+1,timeToRotateBy); }
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bool previousPage(float timeToRotateBy) { return _currentPageNo>=1?gotoPage(_currentPageNo-1,timeToRotateBy):false; }
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bool gotoPage(unsigned int pageNo, float timeToRotateBy);
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osg::StateSet* getBackgroundStateSet() { return _backgroundStateSet.get(); }
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void setVisibility();
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protected:
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typedef std::vector< osg::ref_ptr<Page> > PageList;
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osg::ref_ptr<osg::Group> _group;
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PageList _pages;
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osg::ref_ptr<osg::StateSet> _backgroundStateSet;
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unsigned int _currentPageNo;
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float _radiusOfRings;
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float _startAngleOfPages;
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float _deltaAngleBetweenPages;
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};
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Page::Page(Album* album, unsigned int pageNo, const std::string& filename, float width, float height)
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{
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// set up transform parts.
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_rotation = 0;
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_targetRotation = 0;
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_targetTime = 0;
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_lastTimeTraverse = 0;
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_pageOffset = album->getPageOffset(pageNo);
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setNumChildrenRequiringUpdateTraversal(1);
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// set up subgraph
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osgDB::ReaderWriter* readerWriter = osgDB::Registry::instance()->getReaderWriterForExtension("gdal");
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if (!readerWriter)
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{
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std::cout<<"Error: GDAL plugin not available, cannot preceed with database creation"<<std::endl;
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}
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_switch = new osg::Switch;
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ImageReaderWriter* rw = g_ImageReaderWriter.get();
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// set up non visible page.
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osg::Group* non_visible_page = new osg::Group;
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_switch->addChild(non_visible_page);
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{
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// just an empty group for the time being... will need to create geometry soon.
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osg::Geometry* geom = new osg::Geometry;
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geom->setStateSet(album->getBackgroundStateSet());
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osg::Vec3Array* coords = new osg::Vec3Array(4);
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(*coords)[0].set(0.0f,0.0,height);
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(*coords)[1].set(0.0f,0.0,0);
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(*coords)[2].set(width,0.0,0);
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(*coords)[3].set(width,0.0,height);
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geom->setVertexArray(coords);
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osg::Vec3Array* normals = new osg::Vec3Array(1);
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(*normals)[0].set(0.0f,-1.0f,0.0f);
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geom->setNormalArray(normals);
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geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
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osg::Vec2Array* tcoords = new osg::Vec2Array(4);
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(*tcoords)[0].set(0.0f,1.0f);
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(*tcoords)[1].set(0.0f,0.0f);
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(*tcoords)[2].set(1.0f,0.0f);
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(*tcoords)[3].set(1.0f,1.0f);
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geom->setTexCoordArray(0,tcoords);
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osg::Vec4Array* colours = new osg::Vec4Array(1);
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(*colours)[0].set(1.0f,1.0f,1.0,1.0f);
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geom->setColorArray(colours);
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geom->setColorBinding(osg::Geometry::BIND_OVERALL);
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geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINE_LOOP,0,4));
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// set up the geode.
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geom);
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non_visible_page->addChild(geode);
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}
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// set up visible page.
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osg::Group* visible_page = new osg::Group;
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_switch->addChild(visible_page);
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{
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osg::Geometry* geom = new osg::Geometry;
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geom->setStateSet(album->getBackgroundStateSet());
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osg::Vec3Array* coords = new osg::Vec3Array(4);
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(*coords)[0].set(0.0f,0.0,height);
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(*coords)[1].set(0.0f,0.0,0);
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(*coords)[2].set(width,0.0,0);
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(*coords)[3].set(width,0.0,height);
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geom->setVertexArray(coords);
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osg::Vec3Array* normals = new osg::Vec3Array(1);
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(*normals)[0].set(0.0f,-1.0f,0.0f);
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geom->setNormalArray(normals);
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geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
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osg::Vec2Array* tcoords = new osg::Vec2Array(4);
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(*tcoords)[0].set(0.0f,1.0f);
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(*tcoords)[1].set(0.0f,0.0f);
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(*tcoords)[2].set(1.0f,0.0f);
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(*tcoords)[3].set(1.0f,1.0f);
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geom->setTexCoordArray(0,tcoords);
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osg::Vec4Array* colours = new osg::Vec4Array(1);
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(*colours)[0].set(1.0f,1.0f,1.0,1.0f);
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geom->setColorArray(colours);
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geom->setColorBinding(osg::Geometry::BIND_OVERALL);
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geom->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS,0,4));
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// set up the geode.
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(geom);
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visible_page->addChild(geode);
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}
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{
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float cut_off_distance = 8.0f;
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float max_visible_distance = 300.0f;
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osg::Vec3 center(width*0.5f,0.0f,height*0.5f);
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osgText::Text* text = new osgText::Text;
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text->setFont("fonts/arial.ttf");
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text->setPosition(center);
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text->setCharacterSize(height/20.0f);
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text->setAlignment(osgText::Text::CENTER_CENTER);
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text->setAxisAlignment(osgText::Text::XZ_PLANE);
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text->setColor(osg::Vec4(1.0f,1.0f,0.0f,1.0f));
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text->setText(std::string("Loading ")+filename);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(text);
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osg::PagedLOD* pagedlod = new osg::PagedLOD;
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pagedlod->setCenter(center);
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pagedlod->setRadius(1.6f);
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pagedlod->setNumChildrenThatCannotBeExpired(2);
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pagedlod->setRange(0,max_visible_distance,1e7);
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pagedlod->addChild(geode);
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pagedlod->setRange(1,cut_off_distance,max_visible_distance);
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pagedlod->setFileName(1,rw->insertReference(filename,256,width,height));
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pagedlod->setRange(2,0.0f,cut_off_distance);
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pagedlod->setFileName(2,rw->insertReference(filename,1024,width,height));
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visible_page->addChild(pagedlod);
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}
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addChild(_switch.get());
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}
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void Page::traverse(osg::NodeVisitor& nv)
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{
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// if app traversal update the frame count.
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if (nv.getVisitorType()==osg::NodeVisitor::UPDATE_VISITOR)
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{
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const osg::FrameStamp* framestamp = nv.getFrameStamp();
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if (framestamp)
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{
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double t = framestamp->getReferenceTime();
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if (_rotation!=_targetRotation)
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{
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if (t>=_targetTime) _rotation = _targetRotation;
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else _rotation += (_targetRotation-_rotation)*(t-_lastTimeTraverse)/(_targetTime-_lastTimeTraverse);
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dirtyBound();
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}
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_lastTimeTraverse = t;
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}
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}
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Transform::traverse(nv);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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Album::Album(osg::ArgumentParser& arguments, float width, float height)
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{
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typedef std::vector<std::string> FileList;
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FileList fileList;
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for(int pos=1;pos<arguments.argc();++pos)
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{
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if (arguments.isString(pos)) fileList.push_back(arguments[pos]);
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}
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_radiusOfRings = 0.02;
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_startAngleOfPages = 0.0f;
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_deltaAngleBetweenPages = osg::PI/(float)fileList.size();
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_group = new osg::Group;
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_backgroundStateSet = new osg::StateSet;
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_backgroundStateSet->setAttributeAndModes(new osg::PolygonOffset(1.0f,1.0f),osg::StateAttribute::ON);
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// load the images.
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unsigned int i;
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for(i=0;i<fileList.size();++i)
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{
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Page* page = Page::createPage(this,_pages.size(),fileList[i], width, height);
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if (page)
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{
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_pages.push_back(page);
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_group->addChild(page);
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}
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}
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setVisibility();
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}
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|
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osg::Matrix Album::getPageOffset(unsigned int pageNo) const
|
||||
{
|
||||
float angleForPage = _startAngleOfPages+_deltaAngleBetweenPages*(float)pageNo;
|
||||
osg::Vec3 delta(_radiusOfRings*sinf(angleForPage),-_radiusOfRings*cosf(angleForPage),0.0f);
|
||||
return osg::Matrix::translate(delta);
|
||||
}
|
||||
|
||||
bool Album::gotoPage(unsigned int pageNo, float timeToRotateBy)
|
||||
{
|
||||
if (pageNo>=_pages.size()) return false;
|
||||
|
||||
if (pageNo>_currentPageNo)
|
||||
{
|
||||
for(unsigned int i=_currentPageNo;i<pageNo;++i)
|
||||
{
|
||||
_pages[i]->rotateTo(osg::PI,timeToRotateBy);
|
||||
}
|
||||
_pages[pageNo]->setPageVisible(true);
|
||||
_currentPageNo = pageNo;
|
||||
|
||||
return true;
|
||||
}
|
||||
else if (pageNo<_currentPageNo)
|
||||
{
|
||||
for(unsigned int i=pageNo;i<_currentPageNo;++i)
|
||||
{
|
||||
_pages[i]->rotateTo(0,timeToRotateBy);
|
||||
}
|
||||
_pages[pageNo]->setPageVisible(true);
|
||||
_currentPageNo = pageNo;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
void Album::setVisibility()
|
||||
{
|
||||
for(unsigned int i=0;i<_pages.size();++i)
|
||||
{
|
||||
_pages[i]->setPageVisible(_pages[i]->rotating());
|
||||
}
|
||||
|
||||
//_pages[0]->setPageVisible(true);
|
||||
//if (_currentPageNo>=1) _pages[_currentPageNo-1]->setPageVisible(true);
|
||||
_pages[_currentPageNo]->setPageVisible(true);
|
||||
//if (_currentPageNo<_pages.size()-1) _pages[_currentPageNo+1]->setPageVisible(true);
|
||||
//_pages[_pages.size()-1]->setPageVisible(true);
|
||||
}
|
||||
|
||||
|
||||
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
||||
|
||||
|
||||
class SlideEventHandler : public osgGA::GUIEventHandler
|
||||
{
|
||||
public:
|
||||
|
||||
@ -153,7 +617,7 @@ public:
|
||||
|
||||
META_Object(osgStereImageApp,SlideEventHandler);
|
||||
|
||||
void set(osg::Switch* sw, float timePerSlide, bool autoSteppingActive);
|
||||
void set(Album* album, float timePerSlide, bool autoSteppingActive);
|
||||
|
||||
virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
|
||||
|
||||
@ -161,39 +625,30 @@ public:
|
||||
|
||||
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
||||
|
||||
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
|
||||
|
||||
void nextSlide();
|
||||
|
||||
void previousSlide();
|
||||
|
||||
protected:
|
||||
|
||||
~SlideEventHandler() {}
|
||||
SlideEventHandler(const SlideEventHandler&,const osg::CopyOp&) {}
|
||||
|
||||
osg::ref_ptr<osg::Switch> _switch;
|
||||
osg::ref_ptr<Album> _album;
|
||||
bool _firstTraversal;
|
||||
unsigned int _activeSlide;
|
||||
double _previousTime;
|
||||
double _timePerSlide;
|
||||
bool _autoSteppingActive;
|
||||
};
|
||||
|
||||
SlideEventHandler::SlideEventHandler():
|
||||
_switch(0),
|
||||
_album(0),
|
||||
_firstTraversal(true),
|
||||
_activeSlide(0),
|
||||
_previousTime(-1.0f),
|
||||
_timePerSlide(5.0),
|
||||
_autoSteppingActive(false)
|
||||
{
|
||||
}
|
||||
|
||||
void SlideEventHandler::set(osg::Switch* sw, float timePerSlide, bool autoSteppingActive)
|
||||
void SlideEventHandler::set(Album* album, float timePerSlide, bool autoSteppingActive)
|
||||
{
|
||||
_switch = sw;
|
||||
_switch->setUpdateCallback(this);
|
||||
_album = album;
|
||||
|
||||
_timePerSlide = timePerSlide;
|
||||
_autoSteppingActive = autoSteppingActive;
|
||||
@ -214,16 +669,36 @@ bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIAction
|
||||
}
|
||||
else if (ea.getKey()=='n')
|
||||
{
|
||||
nextSlide();
|
||||
_album->nextPage(ea.time()+1.0f);
|
||||
return true;
|
||||
}
|
||||
else if (ea.getKey()=='p')
|
||||
{
|
||||
previousSlide();
|
||||
_album->previousPage(ea.time()+1.0f);
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
}
|
||||
case(osgGA::GUIEventAdapter::FRAME):
|
||||
{
|
||||
if (_autoSteppingActive)
|
||||
{
|
||||
if (_firstTraversal)
|
||||
{
|
||||
_firstTraversal = false;
|
||||
_previousTime = ea.time();
|
||||
}
|
||||
else if (ea.time()-_previousTime>_timePerSlide)
|
||||
{
|
||||
_previousTime = ea.time();
|
||||
|
||||
_album->nextPage(ea.time()+1.0f);
|
||||
}
|
||||
}
|
||||
|
||||
_album->setVisibility();
|
||||
|
||||
}
|
||||
|
||||
default:
|
||||
return false;
|
||||
@ -238,170 +713,6 @@ void SlideEventHandler::getUsage(osg::ApplicationUsage& usage) const
|
||||
usage.addKeyboardMouseBinding("p","Move to previous image");
|
||||
}
|
||||
|
||||
void SlideEventHandler::operator()(osg::Node* node, osg::NodeVisitor* nv)
|
||||
{
|
||||
if (_autoSteppingActive && nv->getFrameStamp())
|
||||
{
|
||||
double time = nv->getFrameStamp()->getReferenceTime();
|
||||
|
||||
if (_firstTraversal)
|
||||
{
|
||||
_firstTraversal = false;
|
||||
_previousTime = time;
|
||||
}
|
||||
else if (time-_previousTime>_timePerSlide)
|
||||
{
|
||||
_previousTime = time;
|
||||
|
||||
nextSlide();
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
traverse(node,nv);
|
||||
}
|
||||
|
||||
void SlideEventHandler::nextSlide()
|
||||
{
|
||||
if (_switch->getNumChildren()==0) return;
|
||||
|
||||
++_activeSlide;
|
||||
if (_activeSlide>=_switch->getNumChildren()) _activeSlide = 0;
|
||||
|
||||
_switch->setSingleChildOn(_activeSlide);
|
||||
}
|
||||
|
||||
void SlideEventHandler::previousSlide()
|
||||
{
|
||||
if (_switch->getNumChildren()==0) return;
|
||||
|
||||
if (_activeSlide==0) _activeSlide = _switch->getNumChildren()-1;
|
||||
else --_activeSlide;
|
||||
|
||||
_switch->setSingleChildOn(_activeSlide);
|
||||
}
|
||||
|
||||
// create a switch containing a set of child each containing a
|
||||
// stereo image pair.
|
||||
osg::Switch* createScene(const FileList& fileList, float height, float length)
|
||||
{
|
||||
osgDB::ReaderWriter* readerWriter = osgDB::Registry::instance()->getReaderWriterForExtension("gdal");
|
||||
if (!readerWriter)
|
||||
{
|
||||
std::cout<<"Error: GDAL plugin not available, cannot preceed with database creation"<<std::endl;
|
||||
return 0;
|
||||
}
|
||||
|
||||
ImageReaderWriter* rw = g_ImageReaderWriter.get();
|
||||
|
||||
osg::Switch* sw = new osg::Switch;
|
||||
|
||||
typedef std::vector< osg::ref_ptr<osg::Node> > NodeList;
|
||||
NodeList nodes;
|
||||
|
||||
// load the images.
|
||||
unsigned int i;
|
||||
for(i=0;i<fileList.size();++i)
|
||||
{
|
||||
float cut_off_distance = 8.0f;
|
||||
float max_visible_distance = 300.0f;
|
||||
|
||||
osg::Vec3 center(0.0f,0.0f,0.0f);
|
||||
|
||||
osgText::Text* text = new osgText::Text;
|
||||
text->setFont("fonts/arial.ttf");
|
||||
text->setPosition(center);
|
||||
text->setCharacterSize(0.1f);
|
||||
text->setAlignment(osgText::Text::CENTER_CENTER);
|
||||
text->setAxisAlignment(osgText::Text::XZ_PLANE);
|
||||
text->setText(fileList[i]);
|
||||
|
||||
osg::Geode* geode = new osg::Geode;
|
||||
geode->addDrawable(text);
|
||||
|
||||
osg::PagedLOD* pagedlod = new osg::PagedLOD;
|
||||
pagedlod->setCenter(center);
|
||||
pagedlod->setRadius(1.6f);
|
||||
pagedlod->setNumChildrenThatCannotBeExpired(2);
|
||||
|
||||
pagedlod->setRange(0,max_visible_distance,1e7);
|
||||
pagedlod->addChild(geode);
|
||||
|
||||
pagedlod->setRange(1,cut_off_distance,max_visible_distance);
|
||||
pagedlod->setFileName(1,rw->insertReference(fileList[i],128));
|
||||
|
||||
pagedlod->setRange(2,0.0f,cut_off_distance);
|
||||
pagedlod->setFileName(2,rw->insertReference(fileList[i],1024));
|
||||
|
||||
nodes.push_back(pagedlod);
|
||||
}
|
||||
|
||||
|
||||
if (nodes.empty()) return 0;
|
||||
|
||||
osg::Group* front = new osg::Group;
|
||||
sw->addChild(front);
|
||||
|
||||
unsigned int nodes_across = (unsigned int)ceilf(sqrtf((float)nodes.size()*1.25));
|
||||
unsigned int nodes_down = (unsigned int)ceilf((float)nodes.size()/(float)nodes_across);
|
||||
|
||||
float scale = 1.0f/(float)nodes_down;
|
||||
|
||||
osg::Vec3 down_delta(0.0f,0.0f,-scale);
|
||||
osg::Vec3 across_delta(scale*1.25,0.0f,0.0f);
|
||||
osg::Vec3 leftMargin(-down_delta*((float)nodes_down*0.5f)-across_delta*((float)nodes_across*0.5f));
|
||||
|
||||
osg::Vec3 pos = leftMargin;
|
||||
i=0;
|
||||
|
||||
// front cover background
|
||||
{
|
||||
osg::Geometry* geometry = createTexturedQuadGeometry(osg::Vec3(-1.25f,0.0f,-1.0f),osg::Vec3(2.5f,0.0f,0.0f),osg::Vec3(0.0f,0.0f,2.0f));
|
||||
osg::Geode* background = new osg::Geode;
|
||||
background->addDrawable(geometry);
|
||||
front->addChild(background);
|
||||
|
||||
osg::StateSet* stateset = geometry->getOrCreateStateSet();
|
||||
stateset->setAttributeAndModes(new osg::PolygonOffset(2.0f,2.0f),osg::StateAttribute::ON);
|
||||
stateset->setTextureAttributeAndModes(0,new osg::Texture2D(osgDB::readImageFile("lz.rgb")),osg::StateAttribute::ON);
|
||||
}
|
||||
|
||||
NodeList::iterator itr;
|
||||
for(itr=nodes.begin();
|
||||
itr!=nodes.end();
|
||||
++itr)
|
||||
{
|
||||
osg::MatrixTransform* mt = new osg::MatrixTransform;
|
||||
mt->setMatrix(osg::Matrix::scale(scale*0.45f,scale*0.45f,scale*0.45f)*osg::Matrix::translate(pos));
|
||||
mt->addChild(itr->get());
|
||||
front->addChild(mt);
|
||||
|
||||
i++;
|
||||
if ((i%nodes_across)==0)
|
||||
{
|
||||
leftMargin += down_delta;
|
||||
pos = leftMargin;
|
||||
}
|
||||
else pos += across_delta;
|
||||
}
|
||||
|
||||
|
||||
for(itr=nodes.begin();
|
||||
itr!=nodes.end();
|
||||
++itr)
|
||||
{
|
||||
sw->addChild(itr->get());
|
||||
}
|
||||
|
||||
if (sw->getNumChildren()>0)
|
||||
{
|
||||
// select first child.
|
||||
sw->setSingleChildOn(0);
|
||||
}
|
||||
|
||||
return sw;
|
||||
}
|
||||
|
||||
int main( int argc, char **argv )
|
||||
{
|
||||
|
||||
@ -461,36 +772,29 @@ int main( int argc, char **argv )
|
||||
return 1;
|
||||
}
|
||||
|
||||
// extract the filenames from the arguments list.
|
||||
FileList fileList;
|
||||
for(int pos=1;pos<arguments.argc();++pos)
|
||||
{
|
||||
if (arguments.isString(pos)) fileList.push_back(arguments[pos]);
|
||||
}
|
||||
|
||||
if (fileList.size()<2)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
|
||||
// now the windows have been realized we switch off the cursor to prevent it
|
||||
// distracting the people seeing the stereo images.
|
||||
float fovx = 1.25f;
|
||||
float fovy = 1.0f;
|
||||
for( unsigned int i = 0; i < viewer.getCameraConfig()->getNumberOfCameras(); i++ )
|
||||
{
|
||||
Producer::Camera* cam = viewer.getCameraConfig()->getCamera(i);
|
||||
Producer::RenderSurface* rs = cam->getRenderSurface();
|
||||
rs->useCursor(false);
|
||||
//rs->useCursor(false);
|
||||
fovx = cam->getLensHorizontalFov();
|
||||
fovy = cam->getLensVerticalFov();
|
||||
}
|
||||
|
||||
float radius = 1.0f;
|
||||
float width = 2*radius*tan(fovx*0.5f);
|
||||
float height = 2*radius*tan(fovy*0.5f);
|
||||
float length = osg::PI*radius; // half a cylinder.
|
||||
|
||||
osg::ref_ptr<Album> album = new Album(arguments,width,height);
|
||||
|
||||
// creat the scene from the file list.
|
||||
osg::ref_ptr<osg::Switch> rootNode = createScene(fileList,height,length);
|
||||
osg::ref_ptr<osg::Group> rootNode = album->getScene();
|
||||
|
||||
if (!rootNode) return 0;
|
||||
|
||||
@ -498,11 +802,11 @@ int main( int argc, char **argv )
|
||||
//osgDB::writeNodeFile(*rootNode,"test.osg");
|
||||
|
||||
// set the scene to render
|
||||
viewer.setSceneData(rootNode.get());
|
||||
viewer.setSceneData(album->getScene());
|
||||
|
||||
|
||||
// set up the SlideEventHandler.
|
||||
seh->set(rootNode.get(),timeDelayBetweenSlides,autoSteppingActive);
|
||||
seh->set(album.get(),timeDelayBetweenSlides,autoSteppingActive);
|
||||
|
||||
|
||||
// create the windows and run the threads.
|
||||
|
||||
Loading…
Reference in New Issue
Block a user