void
GeoPositionNodeAutoScaler::operator()(osg::Node* node, osg::NodeVisitor* nv)
{
GeoPositionNode* geo = static_cast<GeoPositionNode*>(node);
osgUtil::CullVisitor* cs = static_cast<osgUtil::CullVisitor*>(nv);
double size = 1.0/cs->pixelSize( node->getBound().center(), 0.5f );
geo->getPositionAttitudeTransform()->setScale( osg::componentMultiply(_baseScale, osg::Vec3d(size,size,size)) );
traverse(node, nv);
}
void addBuoyancyTest(osg::Node* model)
{
//labels = new AnnotationLayer();
//map->addLayer(labels);
normals = new AnnotationLayer();
map->addLayer(normals);
// geometry for a unit normal vector
normalDrawable = new LineDrawable(GL_LINES);
normalDrawable->setColor(osg::Vec4(1,1,0,1));
normalDrawable->pushVertex(osg::Vec3(0,0,0));
normalDrawable->pushVertex(osg::Vec3(0,0,10));
normalDrawable->pushVertex(osg::Vec3(-2,0,0.5));
normalDrawable->pushVertex(osg::Vec3(2,0,0.5));
normalDrawable->pushVertex(osg::Vec3(0,-2,0.5));
normalDrawable->pushVertex(osg::Vec3(0,2,0.5));
normalDrawable->finish();
// a single shared anchor point for the intersection set:
isect->setAnchor(anchor);
// generate a bunch of local points around the anchor:
for(int x=-50; x<=50; x+=25)
{
for(int y=-50; y<=50; y+=25)
{
isect->addLocalPoint(osg::Vec3d(x, y, 0));
// a label communicating the wave height:
//PlaceNode* label = new PlaceNode();
//label->setDynamic(true);
//label->setPosition(anchor);
//label->setIconImage(image);
//label->setText("-");
//labels->getGroup()->addChild(label);
// a normal vector and optional model:
GeoPositionNode* normal = new GeoPositionNode();
normal->setDynamic(true);
normal->getPositionAttitudeTransform()->addChild(normalDrawable);
if (model)
normal->getPositionAttitudeTransform()->addChild(model);
normal->setPosition(anchor);
normals->getGroup()->addChild(normal);
}
}
//ScreenSpaceLayout::setDeclutteringEnabled(false);
}
void updateBuoyancyTest()
{
for(unsigned i=0; i<isect->getHeights().size(); ++i)
{
osg::Vec3d local = isect->getInput()[i];
local.z() = isect->getHeights()[i];
//PlaceNode* label = dynamic_cast<PlaceNode*>(labels->getGroup()->getChild(i));
//label->getPositionAttitudeTransform()->setPosition(local);
//label->setText(Stringify()<<std::setprecision(2)<<local.z());
GeoPositionNode* normalNode = dynamic_cast<GeoPositionNode*>(normals->getGroup()->getChild(i));
normalNode->getPositionAttitudeTransform()->setPosition(local);
osg::Quat q;
q.makeRotate(osg::Vec3d(0,0,1), isect->getNormals()[i]);
normalNode->getPositionAttitudeTransform()->setAttitude(q);
}
}
