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Completed changes to osgManipulator to make it more flexible w.r.t viewer usage, and

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ported osgmanipulator example across of osgViewer
This commit is contained in:
Robert Osfield
2007-02-26 13:01:17 +00:00
parent 42689e83ef
commit 7f8f4e331a
15 changed files with 270 additions and 202 deletions
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131
include/osgManipulator/Dragger
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@@ -29,6 +29,99 @@ namespace osgManipulator
class CommandManager;
class CompositeDragger;
class OSGMANIPULATOR_EXPORT PointerInfo
{
public:
PointerInfo();
PointerInfo(const PointerInfo& rhs):
_pixel_x(rhs._pixel_x),
_pixel_y(rhs._pixel_y),
_camera(rhs._camera),
_hitList(rhs._hitList)
{
_hitIter = _hitList.begin();
}
void reset()
{
_hitList.clear();
_hitIter = _hitList.begin();
setCamera(0);
}
bool completed() const { return _hitIter==_hitList.end(); }
void next()
{
if (!completed()) ++_hitIter;
}
typedef std::pair<osg::NodePath, osg::Vec3> NodePathIntersectionPair;
typedef std::list< NodePathIntersectionPair> IntersectionList;
osg::Vec2 pointToProject() const { return osg::Vec2(_pixel_x, _pixel_y); }
osg::Vec3 getLocalIntersectPoint() const { return _hitIter->second; }
bool projectWindowXYIntoObject(const osg::Vec2& windowCoord, osg::Vec3& nearPoint, osg::Vec3& farPoint) const;
bool projectWindowXYIntoObject(osg::Vec3& nearPoint, osg::Vec3& farPoint) const
{
return projectWindowXYIntoObject(pointToProject(), nearPoint, farPoint);
}
bool projectObjectIntoWindow(const osg::Vec3& object,osg::Vec3& window) const;
const osg::Matrix& getViewMatrix() const { return _camera->getViewMatrix(); }
bool contains(const osg::Node* node) const;
void setCamera(osg::Camera* camera)
{
_camera = camera;
if (_camera)
{
_MVPW = _camera->getViewMatrix() * _camera->getProjectionMatrix();
if (_camera->getViewport()) _MVPW.postMult(_camera->getViewport()->computeWindowMatrix());
_inverseMVPW.invert(_MVPW);
}
else
{
_MVPW.makeIdentity();
_inverseMVPW.makeIdentity();
}
}
void addIntersection(const osg::NodePath& nodePath, osg::Vec3 intersectionPoint)
{
bool needToResetHitIter = _hitList.empty();
_hitList.push_back(NodePathIntersectionPair(nodePath, intersectionPoint));
if (needToResetHitIter) _hitIter = _hitList.begin();
}
void setMousePosition(int pixel_x, int pixel_y)
{
_pixel_x = pixel_x;
_pixel_y = pixel_y;
}
public:
int _pixel_x, _pixel_y;
osg::Camera* _camera;
IntersectionList _hitList;
IntersectionList::iterator _hitIter;
osg::Matrix _MVPW;
osg::Matrix _inverseMVPW;
};
/**
* Base class for draggers. Concrete draggers implement the pick event handler
* and generate motion commands (translate, rotate, ...) and sends these
@@ -59,45 +152,7 @@ class OSGMANIPULATOR_EXPORT Dragger : public Selection
/** Returns 0 if this Dragger is not a CompositeDragger. */
virtual CompositeDragger* getComposite() { return 0; }
struct OSGMANIPULATOR_EXPORT PointerInfo
{
PointerInfo();
PointerInfo(const PointerInfo& rhs):
pixel_x(rhs.pixel_x),
pixel_y(rhs.pixel_y),
sv(rhs.sv),
hitList(rhs.hitList)
{
hitIter = hitList.begin();
}
bool completed() const { return hitIter==hitList.end(); }
void next()
{
if (!completed()) ++hitIter;
}
int pixel_x, pixel_y;
osgUtil::SceneView* sv;
osgUtil::IntersectVisitor::HitList hitList;
osgUtil::IntersectVisitor::HitList::iterator hitIter;
osg::Vec2 pointToProject() const { return osg::Vec2(pixel_x, pixel_y); }
osg::Vec3 getLocalIntersectPoint() const { return hitIter->getLocalIntersectPoint(); }
bool projectWindowXYIntoObject(const osg::Vec2& windowCoord, osg::Vec3& nearPoint, osg::Vec3& farPoint) const { return sv->projectWindowXYIntoObject(static_cast<int>(windowCoord.x()), static_cast<int>(windowCoord.y()), nearPoint, farPoint); }
bool projectWindowXYIntoObject(osg::Vec3& nearPoint, osg::Vec3& farPoint) const { return sv->projectWindowXYIntoObject(pixel_x, pixel_y, nearPoint, farPoint); }
const osg::Matrix& getViewMatrix() const { return sv->getViewMatrix(); }
bool contains(const osg::Node* node) const;
};
virtual bool handle(const PointerInfo&, const osgGA::GUIEventAdapter&, osgGA::GUIActionAdapter&) { return false; }

18
include/osgManipulator/Projector
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@@ -40,7 +40,7 @@ class OSGMANIPULATOR_EXPORT Projector : public osg::Referenced
* projecting window coordinates into object coordinates and vice versa.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const = 0;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const = 0;
/**
* Sets the matrix for transforming the projector's local coordinate
@@ -105,7 +105,7 @@ class OSGMANIPULATOR_EXPORT LineProjector : public Projector
* coordinate (pointToProject) when projected onto the given line.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const;
protected:
@@ -133,7 +133,7 @@ class OSGMANIPULATOR_EXPORT PlaneProjector : public Projector
* coordinate (pointToProject) when projected onto the given plane.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const;
protected:
@@ -161,13 +161,13 @@ class OSGMANIPULATOR_EXPORT SphereProjector : public Projector
* coordinate (pointToProject) when projected onto the given sphere.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const;
/**
* Returns true is the point is in front of the cylinder given the eye
* direction.
*/
bool isPointInFront(const Dragger::PointerInfo& pi, const osg::Matrix& localToWorld) const;
bool isPointInFront(const PointerInfo& pi, const osg::Matrix& localToWorld) const;
void setFront(bool front) { _front = front; }
@@ -196,7 +196,7 @@ class OSGMANIPULATOR_EXPORT SpherePlaneProjector : public SphereProjector
* coordinate (pointToProject) when projected onto the given sphere.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const;
/**
* Returns true if the previous projection was on the sphere and false
@@ -240,14 +240,14 @@ class OSGMANIPULATOR_EXPORT CylinderProjector : public Projector
* coordinate (pointToProject) when projected onto the given plane.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const;
/**
* Returns true is the point is in front of the cylinder given the eye
* direction.
*/
bool isPointInFront(const Dragger::PointerInfo& pi, const osg::Matrix& localToWorld) const;
bool isPointInFront(const PointerInfo& pi, const osg::Matrix& localToWorld) const;
void setFront(bool front) { _front = front; }
@@ -276,7 +276,7 @@ class OSGMANIPULATOR_EXPORT CylinderPlaneProjector : public CylinderProjector
* coordinate (pointToProject) when projected onto the given plane.
* Returns true on successful projection.
*/
virtual bool project(const Dragger::PointerInfo& pi, osg::Vec3& projectedPoint) const;
virtual bool project(const PointerInfo& pi, osg::Vec3& projectedPoint) const;
/**
* Returns true if the previous projection was on the cylinder and