Updates to the osgpick code.
Updates to osgGA::CameraManipulors.
This commit is contained in:
parent
b66f464a1b
commit
5df7118d6d
@ -1166,6 +1166,9 @@ Package=<4>
|
|||||||
Begin Project Dependency
|
Begin Project Dependency
|
||||||
Project_Dep_Name Core osgUtil
|
Project_Dep_Name Core osgUtil
|
||||||
End Project Dependency
|
End Project Dependency
|
||||||
|
Begin Project Dependency
|
||||||
|
Project_Dep_Name Core osgText
|
||||||
|
End Project Dependency
|
||||||
}}}
|
}}}
|
||||||
|
|
||||||
###############################################################################
|
###############################################################################
|
||||||
|
@ -102,7 +102,7 @@ LINK32=link.exe
|
|||||||
|
|
||||||
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
|
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /machine:I386
|
||||||
|
|
||||||
# ADD LINK32 opengl32.lib /nologo /subsystem:console /pdb:none /machine:I386 /out:"../../../bin/osgpick.exe" /libpath:"../../../lib"
|
# ADD LINK32 opengl32.lib Producer.lib /nologo /subsystem:console /pdb:none /machine:I386 /out:"../../../bin/osgpick.exe" /libpath:"../../../lib"
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
@ -150,7 +150,7 @@ LINK32=link.exe
|
|||||||
|
|
||||||
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
|
# ADD BASE LINK32 kernel32.lib user32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib uuid.lib odbc32.lib odbccp32.lib /nologo /subsystem:console /debug /machine:I386 /pdbtype:sept
|
||||||
|
|
||||||
# ADD LINK32 opengl32.lib /nologo /subsystem:console /debug /machine:I386 /nodefaultlib:"libcmt" /out:"../../../bin/osgpickd.exe" /pdbtype:sept /libpath:"../../../lib"
|
# ADD LINK32 opengl32.lib Producerd.lib /nologo /subsystem:console /debug /machine:I386 /nodefaultlib:"libcmt" /out:"../../../bin/osgpickd.exe" /pdbtype:sept /libpath:"../../../lib"
|
||||||
|
|
||||||
# SUBTRACT LINK32 /incremental:no
|
# SUBTRACT LINK32 /incremental:no
|
||||||
|
|
||||||
|
@ -97,6 +97,10 @@ SOURCE=..\..\src\osgUtil\CubeMapGenerator.cpp
|
|||||||
# End Source File
|
# End Source File
|
||||||
# Begin Source File
|
# Begin Source File
|
||||||
|
|
||||||
|
SOURCE=..\..\src\osgUtil\PickVisitor.cpp
|
||||||
|
# End Source File
|
||||||
|
# Begin Source File
|
||||||
|
|
||||||
SOURCE=..\..\src\osgUtil\HalfWayMapGenerator.cpp
|
SOURCE=..\..\src\osgUtil\HalfWayMapGenerator.cpp
|
||||||
# End Source File
|
# End Source File
|
||||||
# Begin Source File
|
# Begin Source File
|
||||||
|
@ -81,18 +81,14 @@ void PickHandler::pick(const osgGA::GUIEventAdapter& ea)
|
|||||||
{
|
{
|
||||||
float x=ea.getXnormalized();
|
float x=ea.getXnormalized();
|
||||||
float y=ea.getYnormalized();
|
float y=ea.getYnormalized();
|
||||||
osgUtil::PickVisitor iv;
|
|
||||||
const float *matView;
|
|
||||||
const float *matProj;
|
|
||||||
Producer::Camera *cmm=_cg->getCamera(0);
|
Producer::Camera *cmm=_cg->getCamera(0);
|
||||||
matView=cmm->getViewMatrix();
|
osg::Matrix vum(osg::Matrix(cmm->getViewMatrix()) *
|
||||||
matProj=cmm->getProjectionMatrix();
|
osg::Matrix(cmm->getProjectionMatrix())/* *
|
||||||
osg::Matrix vum;
|
osg::Matrix::translate(1.0f,1.0f,1.0f) *
|
||||||
vum.set(matView);
|
osg::Matrix::scale(0.5f,0.5f,0.5f)*/);
|
||||||
vum.postMult(osg::Matrix(matProj));
|
|
||||||
osg::Matrix windowmatrix=osg::Matrix::translate(1.0f,1.0f,1.0f)*
|
osgUtil::PickVisitor iv;
|
||||||
osg::Matrix::scale(0.5f,0.5f,0.5f);
|
|
||||||
vum.postMult(windowmatrix);
|
|
||||||
osgUtil::IntersectVisitor::HitList& hlist=iv.getHits(scene, vum, x,y);
|
osgUtil::IntersectVisitor::HitList& hlist=iv.getHits(scene, vum, x,y);
|
||||||
std::string gdlist="";
|
std::string gdlist="";
|
||||||
if (iv.hits())
|
if (iv.hits())
|
||||||
@ -105,8 +101,16 @@ void PickHandler::pick(const osgGA::GUIEventAdapter& ea)
|
|||||||
//osg::Vec3 in = hitr->getLocalIntersectNormal();
|
//osg::Vec3 in = hitr->getLocalIntersectNormal();
|
||||||
osg::Geode* geode = hitr->_geode.get();
|
osg::Geode* geode = hitr->_geode.get();
|
||||||
// the geodes are identified by name.
|
// the geodes are identified by name.
|
||||||
if (geode) {
|
if (geode)
|
||||||
gdlist=gdlist+" "+geode->getName();
|
{
|
||||||
|
if (!geode->getName().empty())
|
||||||
|
{
|
||||||
|
gdlist=gdlist+" "+geode->getName();
|
||||||
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
|
gdlist=gdlist+" geode";
|
||||||
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -32,10 +32,10 @@ static Producer::CameraConfig *BuildConfig(void)
|
|||||||
camera2->setOffset( -1.0, 0.0 );
|
camera2->setOffset( -1.0, 0.0 );
|
||||||
|
|
||||||
Producer::InputArea *ia = new Producer::InputArea;
|
Producer::InputArea *ia = new Producer::InputArea;
|
||||||
// ia->addInputRectangle( rs1, Producer::InputRectangle(0.0,0.5,0.0,1.0));
|
ia->addInputRectangle( rs1, Producer::InputRectangle(0.0,0.5,0.0,1.0));
|
||||||
// ia->addInputRectangle( rs2, Producer::InputRectangle(0.5,1.0,0.0,1.0));
|
ia->addInputRectangle( rs2, Producer::InputRectangle(0.5,1.0,0.0,1.0));
|
||||||
ia->addInputRectangle( rs1, Producer::InputRectangle(-1.0,0.0,-1.0,1.0));
|
// ia->addInputRectangle( rs1, Producer::InputRectangle(-1.0,0.0,-1.0,1.0));
|
||||||
ia->addInputRectangle( rs2, Producer::InputRectangle(0.0,1.0,-1.0,1.0));
|
// ia->addInputRectangle( rs2, Producer::InputRectangle(0.0,1.0,-1.0,1.0));
|
||||||
|
|
||||||
|
|
||||||
Producer::CameraConfig *cfg = new Producer::CameraConfig;
|
Producer::CameraConfig *cfg = new Producer::CameraConfig;
|
||||||
|
@ -26,38 +26,42 @@
|
|||||||
namespace osgUtil {
|
namespace osgUtil {
|
||||||
|
|
||||||
// PickIntersectVisitor simplifies picking - routines take x,y mouse pixel & detect hits
|
// PickIntersectVisitor simplifies picking - routines take x,y mouse pixel & detect hits
|
||||||
class OSGUTIL_EXPORT PickIntersectVisitor : public IntersectVisitor {
|
class OSGUTIL_EXPORT PickIntersectVisitor : public IntersectVisitor
|
||||||
|
{
|
||||||
public:
|
public:
|
||||||
PickIntersectVisitor() {
|
PickIntersectVisitor()
|
||||||
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
|
{
|
||||||
}
|
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
|
||||||
~PickIntersectVisitor() { }
|
}
|
||||||
HitList& getHits(osgUtil::SceneView *, int x, int y);
|
~PickIntersectVisitor() { }
|
||||||
HitList& PickIntersectVisitor::getIntersections(osg::Node *scene, osg::Vec3 nr, osg::Vec3 fr);
|
HitList& getHits(osgUtil::SceneView *, int x, int y);
|
||||||
|
HitList& PickIntersectVisitor::getIntersections(osg::Node *scene, osg::Vec3 nr, osg::Vec3 fr);
|
||||||
private:
|
private:
|
||||||
osg::ref_ptr<osg::LineSegment> _lineSegment;
|
osg::ref_ptr<osg::LineSegment> _lineSegment;
|
||||||
friend class osgUtil::IntersectVisitor;
|
friend class osgUtil::IntersectVisitor;
|
||||||
};
|
};
|
||||||
|
|
||||||
// PickVisitor traverses whole scene and checks below all Projection nodes
|
// PickVisitor traverses whole scene and checks below all Projection nodes
|
||||||
class OSGUTIL_EXPORT PickVisitor : public osg::NodeVisitor {
|
class OSGUTIL_EXPORT PickVisitor : public osg::NodeVisitor
|
||||||
|
{
|
||||||
public:
|
public:
|
||||||
PickVisitor() {
|
PickVisitor()
|
||||||
xp=yp=0;
|
{
|
||||||
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
|
xp=yp=0;
|
||||||
setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
|
setNodeMaskOverride(0xffffffff); // need to make the visitor override the nodemask to visit invisible actions
|
||||||
}
|
setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
|
||||||
~PickVisitor() { }
|
}
|
||||||
|
~PickVisitor() { }
|
||||||
virtual void apply(osg::Projection& pr);
|
virtual void apply(osg::Projection& pr);
|
||||||
osgUtil::IntersectVisitor::HitList& getHits(osg::Node *nd, const osg::Matrix &projm, const float x, const float y);
|
osgUtil::IntersectVisitor::HitList& getHits(osg::Node *nd, const osg::Matrix &projm, const float x, const float y);
|
||||||
osgUtil::IntersectVisitor::HitList& getHits(osgUtil::SceneView *, double x, double y);
|
osgUtil::IntersectVisitor::HitList& getHits(osgUtil::SceneView *, double x, double y);
|
||||||
osgUtil::IntersectVisitor::HitList & getHits(osg::Node *nd, const osg::Vec3 near_point, const osg::Vec3 far_point);
|
osgUtil::IntersectVisitor::HitList & getHits(osg::Node *nd, const osg::Vec3 near_point, const osg::Vec3 far_point);
|
||||||
osgUtil::IntersectVisitor::HitList& getHits(void);
|
osgUtil::IntersectVisitor::HitList& getHits(void);
|
||||||
inline void setxy(float xpt, float ypt) { xp=xpt; yp=ypt; }
|
inline void setxy(float xpt, float ypt) { xp=xpt; yp=ypt; }
|
||||||
inline bool hits() { return _PIVsegHitList.size()>0;}
|
inline bool hits() { return _PIVsegHitList.size()>0;}
|
||||||
private:
|
private:
|
||||||
PickIntersectVisitor _piv;
|
PickIntersectVisitor _piv;
|
||||||
float xp, yp; // start point in viewport fraction coordiantes
|
float xp, yp; // start point in viewport fraction coordiantes
|
||||||
osgUtil::IntersectVisitor::HitList _PIVsegHitList;
|
osgUtil::IntersectVisitor::HitList _PIVsegHitList;
|
||||||
};
|
};
|
||||||
}// namespace osgUtil
|
}// namespace osgUtil
|
||||||
|
@ -68,15 +68,11 @@ class TransformVisitor : public NodeVisitor
|
|||||||
{
|
{
|
||||||
if (_coordMode==LOCAL_TO_WORLD)
|
if (_coordMode==LOCAL_TO_WORLD)
|
||||||
{
|
{
|
||||||
osg::Matrix localToWorldMat;
|
transform.getLocalToWorldMatrix(_matrix,_nodeVisitor);
|
||||||
transform.getLocalToWorldMatrix(localToWorldMat,_nodeVisitor);
|
|
||||||
_matrix.preMult(localToWorldMat);
|
|
||||||
}
|
}
|
||||||
else // worldToLocal
|
else // worldToLocal
|
||||||
{
|
{
|
||||||
osg::Matrix worldToLocalMat;
|
transform.getWorldToLocalMatrix(_matrix,_nodeVisitor);
|
||||||
transform.getWorldToLocalMatrix(worldToLocalMat,_nodeVisitor);
|
|
||||||
_matrix.postMult(worldToLocalMat);
|
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -295,11 +295,11 @@ bool TrackballManipulator::calcMovement()
|
|||||||
|
|
||||||
// pan model.
|
// pan model.
|
||||||
|
|
||||||
float scale = 0.5f*focalLength;
|
float scale = -0.5f*focalLength;
|
||||||
|
|
||||||
osg::Vec3 uv = _camera->getUpVector();
|
osg::Vec3 uv = _camera->getUpVector();
|
||||||
osg::Vec3 sv = _camera->getSideVector();
|
osg::Vec3 sv = _camera->getSideVector();
|
||||||
osg::Vec3 dv = uv*(dy*scale)-sv*(dx*scale);
|
osg::Vec3 dv = uv*(dy*scale)+sv*(dx*scale);
|
||||||
|
|
||||||
_center += dv;
|
_center += dv;
|
||||||
|
|
||||||
@ -314,7 +314,7 @@ bool TrackballManipulator::calcMovement()
|
|||||||
// zoom model.
|
// zoom model.
|
||||||
|
|
||||||
float fd = focalLength;
|
float fd = focalLength;
|
||||||
float scale = 1.0f-dy;
|
float scale = 1.0f+dy;
|
||||||
if (fd*scale>_modelScale*_minimumZoomScale)
|
if (fd*scale>_modelScale*_minimumZoomScale)
|
||||||
{
|
{
|
||||||
|
|
||||||
@ -328,7 +328,7 @@ bool TrackballManipulator::calcMovement()
|
|||||||
|
|
||||||
// notify(DEBUG_INFO) << "Pushing forward"<<std::endl;
|
// notify(DEBUG_INFO) << "Pushing forward"<<std::endl;
|
||||||
// push the camera forward.
|
// push the camera forward.
|
||||||
float scale = fd;
|
float scale = -fd;
|
||||||
osg::Vec3 dv = _camera->getLookVector()*(dy*scale);
|
osg::Vec3 dv = _camera->getLookVector()*(dy*scale);
|
||||||
|
|
||||||
_center += dv;
|
_center += dv;
|
||||||
|
@ -308,6 +308,7 @@ void Viewer::requestWarpPointer(float x,float y)
|
|||||||
{
|
{
|
||||||
if (_kbmcb)
|
if (_kbmcb)
|
||||||
{
|
{
|
||||||
|
cout << "x="<<x<<" y="<<y<<endl;
|
||||||
EventAdapter::_s_mx = x;
|
EventAdapter::_s_mx = x;
|
||||||
EventAdapter::_s_my = y;
|
EventAdapter::_s_my = y;
|
||||||
_kbmcb->getKeyboardMouse()->positionPointer(x,y);
|
_kbmcb->getKeyboardMouse()->positionPointer(x,y);
|
||||||
|
@ -21,96 +21,107 @@ using namespace osgUtil;
|
|||||||
|
|
||||||
osgUtil::IntersectVisitor::HitList & PickIntersectVisitor::getHits(osgUtil::SceneView *scv, int x, int y)
|
osgUtil::IntersectVisitor::HitList & PickIntersectVisitor::getHits(osgUtil::SceneView *scv, int x, int y)
|
||||||
{ // High level get intersection with sceneview using a ray from x,y on the screen
|
{ // High level get intersection with sceneview using a ray from x,y on the screen
|
||||||
int x0,y0,width,height;
|
int x0,y0,width,height;
|
||||||
scv->getViewport(x0, y0, width, height);
|
scv->getViewport(x0, y0, width, height);
|
||||||
// setxy(-1+2*(float)(x-x0)/(float)width, 1-2*(float)(y-y0)/(float)height);
|
// setxy(-1+2*(float)(x-x0)/(float)width, 1-2*(float)(y-y0)/(float)height);
|
||||||
// sets xp,yp as pixels scaled to a mapping of (-1,1, -1,1); needed for Projection from x,y pixels
|
// sets xp,yp as pixels scaled to a mapping of (-1,1, -1,1); needed for Projection from x,y pixels
|
||||||
osg::Vec3 near_point,far_point;
|
osg::Vec3 near_point,far_point;
|
||||||
// get ends of line segment perpendicular to screen:
|
// get ends of line segment perpendicular to screen:
|
||||||
if (!scv->projectWindowXYIntoObject(x,height-y,near_point,far_point))
|
if (!scv->projectWindowXYIntoObject(x,height-y,near_point,far_point))
|
||||||
{
|
{
|
||||||
osg::notify(osg::NOTICE) << "PickIntersect failed to calculate intersection ray."<< std::endl;
|
osg::notify(osg::NOTICE) << "PickIntersect failed to calculate intersection ray."<< std::endl;
|
||||||
return getHitList(NULL); // empty;
|
return getHitList(NULL); // empty;
|
||||||
}
|
}
|
||||||
|
|
||||||
return getIntersections(scv->getSceneData(),near_point,far_point);
|
return getIntersections(scv->getSceneData(),near_point,far_point);
|
||||||
}
|
}
|
||||||
|
|
||||||
osgUtil::IntersectVisitor::HitList & PickIntersectVisitor::getIntersections(osg::Node *scene,
|
osgUtil::IntersectVisitor::HitList & PickIntersectVisitor::getIntersections(osg::Node *scene,
|
||||||
osg::Vec3 near_point,osg::Vec3 far_point)
|
osg::Vec3 near_point,osg::Vec3 far_point)
|
||||||
{ // option for non-sceneView users: you need to get the screen perp line and call getIntersections
|
{
|
||||||
// if you are using Projection nodes you should also call setxy to define the xp,yp positions for use with
|
// option for non-sceneView users: you need to get the screen perp line and call getIntersections
|
||||||
// the ray transformed by Projection
|
// if you are using Projection nodes you should also call setxy to define the xp,yp positions for use with
|
||||||
_lineSegment = new osg::LineSegment;
|
// the ray transformed by Projection
|
||||||
_lineSegment->set(near_point,far_point); // make a line segment
|
_lineSegment = new osg::LineSegment;
|
||||||
|
_lineSegment->set(near_point,far_point); // make a line segment
|
||||||
addLineSegment(_lineSegment.get());
|
addLineSegment(_lineSegment.get());
|
||||||
|
|
||||||
scene->accept(*this);
|
scene->accept(*this);
|
||||||
return getHitList(_lineSegment.get());
|
return getHitList(_lineSegment.get());
|
||||||
}
|
}
|
||||||
|
|
||||||
// pickvisitor - top level; test main scenegraph than traverse to lower Projections
|
// pickvisitor - top level; test main scenegraph than traverse to lower Projections
|
||||||
osgUtil::IntersectVisitor::HitList & PickVisitor::getHits(osg::Node *nd, const osg::Vec3 near_point, const osg::Vec3 far_point)
|
osgUtil::IntersectVisitor::HitList & PickVisitor::getHits(osg::Node *nd, const osg::Vec3 near_point, const osg::Vec3 far_point)
|
||||||
{ // High level get intersection with sceneview using a ray from x,y on the screen
|
{
|
||||||
// sets xp,yp as pixels scaled to a mapping of (-1,1, -1,1); needed for Projection from x,y pixels
|
// High level get intersection with sceneview using a ray from x,y on the screen
|
||||||
|
// sets xp,yp as pixels scaled to a mapping of (-1,1, -1,1); needed for Projection from x,y pixels
|
||||||
|
|
||||||
// first get the standard hits in un-projected nodes
|
// first get the standard hits in un-projected nodes
|
||||||
_PIVsegHitList=_piv.getIntersections(nd,near_point,far_point); // fill hitlist
|
_PIVsegHitList=_piv.getIntersections(nd,near_point,far_point); // fill hitlist
|
||||||
|
|
||||||
// then get hits in projection nodes
|
// then get hits in projection nodes
|
||||||
traverse(*(nd)); // check for projection nodes
|
traverse(*(nd)); // check for projection nodes
|
||||||
return _PIVsegHitList;
|
return _PIVsegHitList;
|
||||||
}
|
}
|
||||||
|
|
||||||
osgUtil::IntersectVisitor::HitList & PickVisitor::getHits(osgUtil::SceneView *scv, const double x, const double y)
|
osgUtil::IntersectVisitor::HitList & PickVisitor::getHits(osgUtil::SceneView *scv, const double x, const double y)
|
||||||
{ // High level get intersection with sceneview using a ray from x,y on the screen
|
{
|
||||||
int x0,y0,width,height;
|
// High level get intersection with sceneview using a ray from x,y on the screen
|
||||||
scv->getViewport(x0, y0, width, height);
|
int x0,y0,width,height;
|
||||||
setxy(-1+2*(float)(x-x0)/(float)width, 1-2*(float)(y-y0)/(float)height);
|
scv->getViewport(x0, y0, width, height);
|
||||||
// sets xp,yp as pixels scaled to a mapping of (-1,1, -1,1); needed for Projection from x,y pixels
|
setxy(-1+2*(float)(x-x0)/(float)width, 1-2*(float)(y-y0)/(float)height);
|
||||||
|
// sets xp,yp as pixels scaled to a mapping of (-1,1, -1,1); needed for Projection from x,y pixels
|
||||||
osg::Vec3 near_point,far_point;
|
osg::Vec3 near_point,far_point;
|
||||||
// get ends of line segment perpendicular to screen:
|
// get ends of line segment perpendicular to screen:
|
||||||
if (!scv->projectWindowXYIntoObject(x,height-y,near_point,far_point))
|
if (!scv->projectWindowXYIntoObject(x,height-y,near_point,far_point))
|
||||||
{
|
{
|
||||||
osg::notify(osg::NOTICE) << "PickIntersect failed to calculate intersection ray."<< std::endl;
|
osg::notify(osg::NOTICE) << "PickIntersect failed to calculate intersection ray."<< std::endl;
|
||||||
return _piv.getHitList(NULL); // empty;
|
return _piv.getHitList(NULL); // empty;
|
||||||
}
|
}
|
||||||
osg::Node *nd=scv->getSceneData();
|
osg::Node *nd=scv->getSceneData();
|
||||||
getHits(nd, near_point,far_point);
|
getHits(nd, near_point,far_point);
|
||||||
return _PIVsegHitList;
|
return _PIVsegHitList;
|
||||||
}
|
}
|
||||||
|
|
||||||
osgUtil::IntersectVisitor::HitList & PickVisitor::getHits(void)
|
osgUtil::IntersectVisitor::HitList & PickVisitor::getHits(void)
|
||||||
{ // High level return current intersections
|
{
|
||||||
return _PIVsegHitList;
|
// High level return current intersections
|
||||||
|
return _PIVsegHitList;
|
||||||
}
|
}
|
||||||
|
|
||||||
osgUtil::IntersectVisitor::HitList& PickVisitor::getHits(osg::Node *scene,
|
osgUtil::IntersectVisitor::HitList& PickVisitor::getHits(osg::Node *scene,
|
||||||
const osg::Matrix &projm, const float x, const float y)
|
const osg::Matrix &projm, const float x, const float y)
|
||||||
{ // utility for non=sceneview viewers
|
{
|
||||||
// x,y are values returned by
|
// utility for non=sceneview viewers
|
||||||
osg::Matrix inverseMVPW;
|
// x,y are values returned by
|
||||||
inverseMVPW.invert(projm);
|
osg::Matrix inverseMVPW;
|
||||||
double ix=0.5+0.5*x, iy=0.5-0.5*y; // for this purpose, range from 0-1
|
inverseMVPW.invert(projm);
|
||||||
osg::Vec3 near_point = osg::Vec3(ix,iy,0.0f)*inverseMVPW;
|
// float ix=0.5f+0.5f*x, iy=0.5f+0.5f*y; // for this purpose, range from 0-1
|
||||||
osg::Vec3 far_point = osg::Vec3(ix,iy,1.0f)*inverseMVPW;
|
osg::Vec3 near_point = osg::Vec3(x,y,1.0f)*inverseMVPW;
|
||||||
setxy(x,-y);
|
osg::Vec3 far_point = osg::Vec3(x,y,-1.0f)*inverseMVPW;
|
||||||
getHits(scene,near_point,far_point);
|
setxy(x,y);
|
||||||
return _PIVsegHitList;
|
getHits(scene,near_point,far_point);
|
||||||
|
return _PIVsegHitList;
|
||||||
}
|
}
|
||||||
|
|
||||||
void PickVisitor::apply(osg::Projection& pr)
|
void PickVisitor::apply(osg::Projection& pr)
|
||||||
{ // stack the intersect rays, transform to new projection, traverse
|
{ // stack the intersect rays, transform to new projection, traverse
|
||||||
// Assumes that the Projection is an absolute projection
|
// Assumes that the Projection is an absolute projection
|
||||||
osg::Matrix mt=osg::Matrix::inverse(pr.getMatrix());
|
osg::Matrix mt=osg::Matrix::inverse(pr.getMatrix());
|
||||||
osg::Vec3 npt=osg::Vec3(xp,yp,1) * mt, farpt=osg::Vec3(xp,yp,-1) * mt;
|
osg::Vec3 npt=osg::Vec3(xp,yp,1.0f) * mt, farpt=osg::Vec3(xp,yp,-1.0f) * mt;
|
||||||
|
|
||||||
// traversing the nodes children, using the projection direction
|
// traversing the nodes children, using the projection direction
|
||||||
for (unsigned int i=0; i<pr.getNumChildren(); i++) {
|
for (unsigned int i=0; i<pr.getNumChildren(); i++)
|
||||||
osg::Node *nodech=pr.getChild(i);
|
{
|
||||||
osgUtil::IntersectVisitor::HitList &hli=_piv.getIntersections(nodech,npt, farpt);
|
osg::Node *nodech=pr.getChild(i);
|
||||||
for(osgUtil::IntersectVisitor::HitList::iterator hitr=hli.begin();
|
osgUtil::IntersectVisitor::HitList &hli=_piv.getIntersections(nodech,npt, farpt);
|
||||||
hitr!=hli.end();
|
for(osgUtil::IntersectVisitor::HitList::iterator hitr=hli.begin();
|
||||||
++hitr) { // add the projection hits to the scene hits.
|
hitr!=hli.end();
|
||||||
// This is why _lineSegment is retained as a member of PickIntersectVisitor
|
++hitr)
|
||||||
_PIVsegHitList.push_back(*hitr);
|
{ // add the projection hits to the scene hits.
|
||||||
}
|
// This is why _lineSegment is retained as a member of PickIntersectVisitor
|
||||||
traverse(*nodech);
|
_PIVsegHitList.push_back(*hitr);
|
||||||
|
}
|
||||||
|
traverse(*nodech);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
Loading…
Reference in New Issue
Block a user