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osgEarth 2.1.1
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osgEarth 2.1.1
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Inheritance diagram for GeodeticManifold: Collaboration diagram for GeodeticManifold:Public Member Functions | |
| GeodeticManifold () | |
| void | seed (Level maxLevel) |
| void | cull (osgUtil::CullVisitor *cv) |
| void | initialize (MeshManager *mesh) |
| osg::Vec3d | midpoint (const osg::Vec3d &mapCoord0, const osg::Vec3d &mapCoord1) const |
| osg::BoundingSphere | initialBound () const |
| MeshNode | createNode (const osg::Vec3d &manifoldCoord) const |
| osg::Vec3d | p (double x, double y, double z) |
Public Attributes | |
| osg::BoundingSphere | _bs |
| osg::ref_ptr< const Profile > | _profile |
| osg::ref_ptr< const osg::EllipsoidModel > | _ellipsoid |
| osg::ref_ptr< Diamond > | _vd [6] |
| osg::ref_ptr< Diamond > | _fd [4] |
| osg::ref_ptr< Diamond > | _ed [8] |
The top-level diamond layout for a round earth
Definition at line 29 of file GeodeticManifold.
| GeodeticManifold::GeodeticManifold | ( | ) |
Definition at line 24 of file GeodeticManifold.cpp.
{
_profile = osgEarth::Registry::instance()->getGlobalGeodeticProfile();
_ellipsoid = _profile->getSRS()->getGeographicSRS()->getEllipsoid();
}
Here is the call graph for this function:| MeshNode GeodeticManifold::createNode | ( | const osg::Vec3d & | manifoldCoord | ) | const [virtual] |
creates a mesh node for a coordinate in manifold profile
Implements Manifold.
Definition at line 214 of file GeodeticManifold.cpp.
{
MeshNode node;
node._manifoldCoord = manCoord;
node._geodeticCoord.set(
osg::DegreesToRadians(manCoord.x()), osg::DegreesToRadians(manCoord.y()), manCoord.z() );
osg::Vec3d temp;
_ellipsoid->convertLatLongHeightToXYZ(
node._geodeticCoord.y(), node._geodeticCoord.x(), node._geodeticCoord.z(),
temp.x(), temp.y(), temp.z() );
node._vertex = temp;
node._normal = _ellipsoid->computeLocalUpVector(
temp.x(), temp.y(), temp.z() );
return node;
}
| void GeodeticManifold::cull | ( | osgUtil::CullVisitor * | cv | ) | [virtual] |
apply culling to the manifold.
Implements Manifold.
Definition at line 252 of file GeodeticManifold.cpp.
{
for( unsigned short e=0; e<8; ++e )
{
_ed[e]->cull( cv );
}
}
| osg::BoundingSphere GeodeticManifold::initialBound | ( | ) | const [virtual] |
calculates the initial bound for the manifold.
Implements Manifold.
Definition at line 237 of file GeodeticManifold.cpp.
{
return osg::BoundingSphere( osg::Vec3d(0,0,0), _ellipsoid->getRadiusEquator() * 1.2 );
}
| void GeodeticManifold::initialize | ( | MeshManager * | mesh | ) | [virtual] |
builds the base manifold mesh.
Implements Manifold.
Definition at line 31 of file GeodeticManifold.cpp.
{
mesh->_minGeomLevel = 1;
mesh->_minActiveLevel = 3;
// Construct the "vertex diamonds".
_vd[0] = new Diamond(mesh, TileKey(), 0, "vd0"); // north pole 1
_vd[0]->setCoord( -90, 90, 0 );
_vd[1] = new Diamond(mesh, TileKey(), 0, "vd1"); // north pole 2
_vd[1]->setCoord( 90, 90, 0 );
_vd[2] = new Diamond(mesh, TileKey(), 0, "vd2"); // south pole 1
_vd[2]->setCoord( -90, -90, 0 );
_vd[3] = new Diamond(mesh, TileKey(), 0, "vd3"); // south pole 2
_vd[3]->setCoord( 90, -90, 0 );
_vd[4] = new Diamond(mesh, TileKey(), 0, "vd4");
_vd[4]->setCoord( -180, 0, 0 );
_vd[5] = new Diamond(mesh, TileKey(), 0, "vd5");
_vd[5]->setCoord( 0, 0, 0 );
// The 4 "face diamonds":
_fd[0] = new Diamond(mesh, TileKey(), 0, "fd0");
_fd[0]->setCoord( -90, 0, 0 );
_fd[0]->_a[GDPARENT] = _vd[0].get();
_fd[0]->_a[QUADTREE] = _vd[2].get();
_fd[0]->_a[PARENT_L] = _vd[4].get();
_fd[0]->_a[PARENT_R] = _vd[5].get();
_fd[1] = new Diamond(mesh, TileKey(), 0, "fd1");
_fd[1]->setCoord( 90, 0, 0 );
_fd[1]->_a[GDPARENT] = _vd[3].get();
_fd[1]->_a[QUADTREE] = _vd[1].get();
_fd[1]->_a[PARENT_L] = _vd[4].get();
_fd[1]->_a[PARENT_R] = _vd[5].get();
_fd[2] = new Diamond(mesh, TileKey(), 0, "fd2"); // virtual north pole diamond
_fd[2]->setCoord( 0, 90, 0 );
_fd[2]->_a[GDPARENT] = _vd[0].get();
_fd[2]->_a[QUADTREE] = _vd[1].get();
_fd[2]->_a[PARENT_L] = _vd[5].get();
_fd[2]->_a[PARENT_R] = _vd[4].get();
_fd[3] = new Diamond(mesh, TileKey(), 0, "fd3"); // virtual south pole diamond
_fd[3]->setCoord( 0, -90, 0 );
_fd[3]->_a[GDPARENT] = _vd[3].get();
_fd[3]->_a[QUADTREE] = _vd[2].get();
_fd[3]->_a[PARENT_L] = _vd[5].get();
_fd[3]->_a[PARENT_R] = _vd[4].get();
// the 8 "edge diamonds" (first with geometry)
_ed[0] = new Diamond(mesh, TileKey(1,0,0,_profile.get()), 1, "ed0");
_ed[0]->setCoord( -135, 45, 0 );
_ed[0]->_a[GDPARENT] = _vd[0].get();
_ed[0]->_a[QUADTREE] = _vd[4].get();
_ed[0]->_a[PARENT_L] = _fd[2].get();
_ed[0]->_a[PARENT_R] = _fd[0].get();
_ed[0]->_orientation = 0;
_ed[1] = new Diamond(mesh, TileKey(1,1,0,_profile.get()), 1, "ed1");
_ed[1]->setCoord( -45, 45, 0 );
_ed[1]->_a[GDPARENT] = _vd[0].get();
_ed[1]->_a[QUADTREE] = _vd[5].get();
_ed[1]->_a[PARENT_L] = _fd[0].get();
_ed[1]->_a[PARENT_R] = _fd[2].get();
_ed[1]->_orientation = 2;
_ed[2] = new Diamond(mesh, TileKey(1,0,1,_profile.get()), 1, "ed2");
_ed[2]->setCoord( -135, -45, 0 );
_ed[2]->_a[GDPARENT] = _vd[2].get();
_ed[2]->_a[QUADTREE] = _vd[4].get();
_ed[2]->_a[PARENT_L] = _fd[0].get();
_ed[2]->_a[PARENT_R] = _fd[3].get();
_ed[2]->_orientation = 6;
_ed[3] = new Diamond(mesh, TileKey(1,1,1,_profile.get()), 1, "ed3");
_ed[3]->setCoord( -45, -45, 0 );
_ed[3]->_a[GDPARENT] = _vd[2].get();
_ed[3]->_a[QUADTREE] = _vd[5].get();
_ed[3]->_a[PARENT_L] = _fd[3].get();
_ed[3]->_a[PARENT_R] = _fd[0].get();
_ed[3]->_orientation = 4;
_ed[4] = new Diamond(mesh, TileKey(1,2,0,_profile.get()), 1, "ed4");
_ed[4]->setCoord( 45, 45, 0 );
_ed[4]->_a[GDPARENT] = _vd[1].get();
_ed[4]->_a[QUADTREE] = _vd[5].get();
_ed[4]->_a[PARENT_L] = _fd[2].get();
_ed[4]->_a[PARENT_R] = _fd[1].get();
_ed[4]->_orientation = 0;
_ed[5] = new Diamond(mesh, TileKey(1,3,0,_profile.get()), 1, "ed5");
_ed[5]->setCoord( 135, 45, 0 );
_ed[5]->_a[GDPARENT] = _vd[1].get();
_ed[5]->_a[QUADTREE] = _vd[4].get();
_ed[5]->_a[PARENT_L] = _fd[1].get();
_ed[5]->_a[PARENT_R] = _fd[2].get();
_ed[5]->_orientation = 2;
_ed[6] = new Diamond(mesh, TileKey(1,2,1,_profile.get()), 1, "ed6");
_ed[6]->setCoord( 45, -45, 0 );
_ed[6]->_a[GDPARENT] = _vd[3].get();
_ed[6]->_a[QUADTREE] = _vd[5].get();
_ed[6]->_a[PARENT_L] = _fd[1].get();
_ed[6]->_a[PARENT_R] = _fd[3].get();
_ed[6]->_orientation = 6;
_ed[7] = new Diamond(mesh, TileKey(1,3,1,_profile.get()), 1, "ed7");
_ed[7]->setCoord( 135, -45, 0 );
_ed[7]->_a[GDPARENT] = _vd[3].get();
_ed[7]->_a[QUADTREE] = _vd[4].get();
_ed[7]->_a[PARENT_L] = _fd[3].get();
_ed[7]->_a[PARENT_R] = _fd[1].get();
_ed[7]->_orientation = 7;
// set child pointers:
_fd[0]->setChild( 0, _ed[3].get() );
_fd[0]->setChild( 1, _ed[1].get() );
_fd[0]->setChild( 2, _ed[0].get() );
_fd[0]->setChild( 3, _ed[2].get() );
_fd[1]->setChild( 0, _ed[4].get() );
_fd[1]->setChild( 1, _ed[6].get() );
_fd[1]->setChild( 2, _ed[7].get() );
_fd[1]->setChild( 3, _ed[5].get() );
_fd[2]->setChild( 0, _ed[5].get() );
_fd[2]->setChild( 1, _ed[0].get() );
_fd[2]->setChild( 2, _ed[1].get() );
_fd[2]->setChild( 3, _ed[4].get() );
_fd[3]->setChild( 0, _ed[2].get() );
_fd[3]->setChild( 1, _ed[7].get() );
_fd[3]->setChild( 2, _ed[6].get() );
_fd[3]->setChild( 3, _ed[3].get() );
// seed the bouding spheres of the manifold diamonds:
for( unsigned short f=0; f<4; ++f )
_fd[f]->activate();
for( unsigned short e=0; e<8; ++e )
_ed[e]->activate();
// generate Level 3 (the first renderable quadtree decendants).
seed( 3 );
// hopefully, that's it!
}
Here is the call graph for this function:| osg::Vec3d GeodeticManifold::midpoint | ( | const osg::Vec3d & | mapCoord0, |
| const osg::Vec3d & | mapCoord1 | ||
| ) | const [virtual] |
calculates the midpoint between two map coodinates
Implements Manifold.
Definition at line 198 of file GeodeticManifold.cpp.
{
//TODO account for date line crossing
return (p0+p1)*0.5;
}
| osg::Vec3d GeodeticManifold::p | ( | double | x, |
| double | y, | ||
| double | z | ||
| ) |
| void GeodeticManifold::seed | ( | Level | maxLevel | ) |
generate children up to the specified level
Definition at line 243 of file GeodeticManifold.cpp.
{
for( unsigned short e=0; e<8; ++e )
{
_ed[e]->seed( maxLevel );
}
}
Here is the caller graph for this function:| osg::BoundingSphere GeodeticManifold::_bs |
Definition at line 56 of file GeodeticManifold.
| osg::ref_ptr<Diamond> GeodeticManifold::_ed[8] |
Definition at line 61 of file GeodeticManifold.
| osg::ref_ptr<const osg::EllipsoidModel> GeodeticManifold::_ellipsoid |
Definition at line 58 of file GeodeticManifold.
| osg::ref_ptr<Diamond> GeodeticManifold::_fd[4] |
Definition at line 60 of file GeodeticManifold.
| osg::ref_ptr<const Profile> GeodeticManifold::_profile |
Definition at line 57 of file GeodeticManifold.
| osg::ref_ptr<Diamond> GeodeticManifold::_vd[6] |
Definition at line 59 of file GeodeticManifold.
1.7.3
