osg::Object *RefosgBillboard::getChildObject(unsigned i) {
if (i < 1) {
return _object->getUpdateCallback();
} else {
i -= 1;
}
if (i < 1) {
return _object->getStateSet();
} else {
i -= 1;
}
if (i < 1) {
return _object->getEventCallback();
} else {
i -= 1;
}
if (i < _object->getNumDrawables()) {
return _object->getDrawable(i);
} else {
i -= _object->getNumDrawables();
}
if (i < 1) {
return _object->getCullCallback();
} else {
i -= 1;
}
throw std::out_of_range("child");
}
void osgMain::createPipe(osg::Vec3 & pt1, osg::Vec3 & pt2, osg::Vec3 & pt3, osg::Vec3Array* shape,bool startPt,osg::ref_ptr<osg::Geode> & currentLine)
{
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe");
//shape must be at xy plane
if(shape->size()<3)
{
__android_log_print(ANDROID_LOG_ERROR,"jni server","create pipe NOOOO");
return ;
}
//currentLine->addDrawable(new osg::ShapeDrawable(new osg::Sphere(pt3,1.0f)));
//return;
osg::Vec3 v12=(pt1-pt2);
v12.normalize();
osg::Vec3 v32=(pt3-pt2);
v32.normalize();
osg::ref_ptr<osg::Vec3Array> startShape;
osg::Vec3 center(0,0,0);
for(int i=0;i<shape->size();i++)
center=center+shape->at(i);
center=center/(float)shape->size();
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK1");
if(startPt)
{
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK2");
startShape=new osg::Vec3Array;
osg::Vec3 posZ(0.0,0.0,1.0);
osg::Vec3 rotAxis=posZ^(-v12);
if(rotAxis.length2()<0.01f)
return ;
float rotAngle=(float)acos((double)(posZ*(-v12)));
osg::Matrixd mat;
mat.makeRotate(rotAngle,rotAxis);
for(int i=0;i<shape->size();i++)
startShape->push_back(mat.preMult(shape->at(i)-center)+pt1);
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK3");
}
else
startShape=shape;
osg::Vec3 p2Dir;
osg::Vec3 half=(v12+v32)/2.0f;
half.normalize();
osg::Vec3 p2DirOrtho=v12^half;
p2DirOrtho.normalize();
p2Dir=p2DirOrtho^half;
p2Dir.normalize();
osg::Vec3 shapeDir=(startShape->at(2)-startShape->at(1))^(startShape->at(0)-startShape->at(1));
shapeDir.normalize();
if(shapeDir*(-v12)<0.0)
shapeDir=-shapeDir;
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK3");
osg::ref_ptr<osg::Vec3Array> p2Shape=new osg::Vec3Array;
osg::Vec3 rotAxis=shapeDir^p2Dir;
float rotAngle=(float)acos((double)(shapeDir*p2Dir));
osg::Matrixd mat;
mat.makeRotate(rotAngle,rotAxis);
osg::Vec3 trans=pt2-pt1;
center.set(0,0,0);
for(int i=0;i<startShape->size();i++)
center=center+startShape->at(i);
center=center/(float)startShape->size();
for(int i=0;i<startShape->size();i++)
p2Shape->push_back(mat.preMult(startShape->at(i)-center)+center+trans);
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK4");
osg::ref_ptr<osg::Geometry> pipe=new osg::Geometry;
osg::ref_ptr<osg::Vec3Array> allVerts=new osg::Vec3Array;
int numVerts=p2Shape->size();
for(unsigned int i=0;i<numVerts;i++)
{
allVerts->push_back(startShape->at(i));
allVerts->push_back(startShape->at((i+1)%numVerts));
allVerts->push_back(p2Shape->at(i));
allVerts->push_back(startShape->at((i+1)%numVerts));
allVerts->push_back(p2Shape->at((i+1)%numVerts));
allVerts->push_back(p2Shape->at(i));
}
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK5");
pipe->setVertexArray(allVerts.get());
osg::ref_ptr<osg::DrawArrays> array=new osg::DrawArrays(GL_TRIANGLES,0,allVerts->size());
pipe->addPrimitiveSet(array);
osgUtil::SmoothingVisitor::smooth(*pipe);
for(int i=0;i<numVerts;i++)
shape->at(i)=p2Shape->at(i);
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe OK6");
if(startPt)
{
//currentLine=new osg::Geode();
currentLine->addDrawable(pipe);
}
else
{
osgUtil::Optimizer::MergeGeometryVisitor::mergeGeometry(*currentLine->getDrawable(0)->asGeometry(),*pipe);
}
//return pipe.release();
__android_log_print(ANDROID_LOG_ERROR,"jni client","create pipe finish");
}