FGFS-4.1/OpenSceneGraph
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Added new TerrainManipulator to osgGA, and new callback for getting the

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CoordinateFrame for a given X,Y,Z location.
This commit is contained in:
Robert Osfield
2004-05-06 11:01:16 +00:00
parent 1a09763515
commit 47dd0ece28
12 changed files with 740 additions and 61 deletions
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32
src/osgGA/DriveManipulator.cpp
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@@ -71,12 +71,16 @@ void DriveManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter& us)
if(_node.get())
{
const osg::BoundingSphere& boundingSphere=_node->getBound();
osg::Vec3 ep = boundingSphere._center;
osg::Vec3 bp = ep;
ep -= getUpVector()* _modelScale*0.0001f;
bp -= getUpVector()* _modelScale;
osg::CoordinateFrame cf=getCoordinateFrame(ep.x(), ep.y(), ep.z());
ep -= getUpVector(cf)* _modelScale*0.0001f;
bp -= getUpVector(cf)* _modelScale;
// check to see if any obstruction in front.
osgUtil::IntersectVisitor iv;
@@ -99,11 +103,11 @@ void DriveManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter& us)
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np * getUpVector()>0.0f) uv = np;
if (np * getUpVector(cf)>0.0f) uv = np;
else uv = -np;
ep = ip;
ep += getUpVector()*_height;
ep += getUpVector(cf)*_height;
osg::Vec3 lv = uv^osg::Vec3(1.0f,0.0f,0.0f);
computePosition(ep,lv,uv);
@@ -117,7 +121,7 @@ void DriveManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter& us)
if (!positionSet)
{
bp = ep;
bp += getUpVector()*_modelScale;
bp += getUpVector(cf)*_modelScale;
osg::ref_ptr<osg::LineSegment> segUp = new osg::LineSegment;
segUp->set(ep,bp);
@@ -135,11 +139,11 @@ void DriveManipulator::home(const GUIEventAdapter& ea,GUIActionAdapter& us)
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np*getUpVector()>0.0f) uv = np;
if (np*getUpVector(cf)>0.0f) uv = np;
else uv = -np;
ep = ip;
ep += getUpVector()*_height;
ep += getUpVector(cf)*_height;
osg::Vec3 lv = uv^osg::Vec3(1.0f,0.0f,0.0f);
computePosition(ep,lv,uv);
@@ -179,11 +183,13 @@ void DriveManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& us)
osg::Vec3 ep = _eye;
osg::CoordinateFrame cf=getCoordinateFrame(ep.x(), ep.y(), ep.z());
Matrixd rotation_matrix;
rotation_matrix.set(_rotation);
osg::Vec3 sv = osg::Vec3(1.0f,0.0f,0.0f) * rotation_matrix;
osg::Vec3 bp = ep;
bp -= getUpVector()*_modelScale;
bp -= getUpVector(cf)*_modelScale;
// check to see if any obstruction in front.
osgUtil::IntersectVisitor iv;
@@ -206,7 +212,7 @@ void DriveManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& us)
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np*getUpVector()>0.0f) uv = np;
if (np*getUpVector(cf)>0.0f) uv = np;
else uv = -np;
ep = ip+uv*_height;
@@ -222,7 +228,7 @@ void DriveManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& us)
if (!positionSet)
{
bp = ep;
bp += getUpVector()*_modelScale;
bp += getUpVector(cf)*_modelScale;
osg::ref_ptr<osg::LineSegment> segUp = new osg::LineSegment;
segUp->set(ep,bp);
@@ -240,7 +246,7 @@ void DriveManipulator::init(const GUIEventAdapter& ea,GUIActionAdapter& us)
osg::Vec3 np = hitList.front().getWorldIntersectNormal();
osg::Vec3 uv;
if (np*getUpVector()>0.0f) uv = np;
if (np*getUpVector(cf)>0.0f) uv = np;
else uv = -np;
ep = ip+uv*_height;
@@ -448,6 +454,8 @@ bool DriveManipulator::calcMovement()
}
}
osg::CoordinateFrame cf=getCoordinateFrame(_eye.x(), _eye.y(), _eye.z());
osg::Matrix rotation_matrix;
rotation_matrix.makeRotate(_rotation);
@@ -535,7 +543,7 @@ bool DriveManipulator::calcMovement()
// no hit on the terrain found therefore resort to a fall under
// under the influence of gravity.
osg::Vec3 dp = lfp;
dp -= getUpVector()* (2*_modelScale);
dp -= getUpVector(cf)* (2*_modelScale);
iv.reset();