bool GLC_TurnTableMover::move(const GLC_UserInput& userInput)
{
GLC_Camera* pCamera= GLC_Mover::m_pViewport->cameraHandle();
// Turn table rotation
const double rotSpeed= 2.3;
const double width= static_cast<double> ( GLC_Mover::m_pViewport->viewVSize() );
const double height= static_cast<double> ( GLC_Mover::m_pViewport->viewHSize() );
const double alpha = -((static_cast<double>(userInput.x()) - GLC_Mover::m_PreviousVector.x()) / width) * rotSpeed;
const double beta = ((static_cast<double>(userInput.y()) - GLC_Mover::m_PreviousVector.y()) / height) * rotSpeed;
// Rotation around the screen vertical axis
pCamera->rotateAroundTarget(pCamera->defaultUpVector(), alpha * m_Sign);
// Rotation around the screen horizontal axis
GLC_Vector3d incidentVector= -pCamera->forward();
GLC_Vector3d rightVector= incidentVector ^ pCamera->upVector();
if (!rightVector.isNull())
{
pCamera->rotateAroundTarget(rightVector, beta);
}
m_PreviousVector.setVect(static_cast<double>(userInput.x()), static_cast<double>(userInput.y()), 0.0);
return true;
}
// Initialized the mover
void GLC_SetTargetMover::init(const GLC_UserInput& userInput)
{
// Z Buffer component of selected point between 0 and 1
GLfloat Depth;
// read selected point
glReadPixels(userInput.x(), m_pViewport->viewVSize() - userInput.y() , 1, 1, GL_DEPTH_COMPONENT, GL_FLOAT, &Depth);
// Test if there is geometry under picking point
if (!qFuzzyCompare(Depth, 1.0f))
{ // Geometry find -> Update camera's target position
const GLC_Point3d target(m_pViewport->unProject(userInput.x(), userInput.y()));
m_pViewport->cameraHandle()->setTargetCam(target);
}
else
{ // Geometry not find -> panning
const GLC_Point3d curPos(m_pViewport->mapPosMouse(userInput.x(), userInput.y()));
const GLC_Point3d prevPos(m_pViewport->mapPosMouse(m_pViewport->viewHSize() / 2, m_pViewport->viewVSize() / 2));
const GLC_Vector3d VectPan(curPos - prevPos); // panning vector
// pan camera
m_pViewport->cameraHandle()->pan(VectPan);
}
}
// Move the camera
bool GLC_TsrMover::move(const GLC_UserInput& userInput)
{
const GLC_Vector3d VectCur(m_pViewport->mapPosMouse(static_cast<double>(userInput.x()), static_cast<double>(userInput.y())));
const GLC_Vector3d VectPan= VectCur - m_PreviousVector; // moving Vector
GLC_Camera* pCamera= m_pViewport->cameraHandle();
// Pan the camera
pCamera->pan(-VectPan);
// Zoom
//m_pViewport->reframeFromDeltaCover(userInput.scaleFactor());
zoom(userInput.scaleFactor());
// Rotation
if (!qFuzzyCompare(userInput.rotationAngle(), 0.0))
{
GLC_Point3d unProjectedPoint= userInput.unprojectedPoint();
pCamera->rotateAround(pCamera->forward(), userInput.rotationAngle(), unProjectedPoint);
}
m_PreviousVector= VectCur;
return true;
}
// Initialized the mover
void GLC_TsrMover::init(const GLC_UserInput& userInput)
{
m_PreviousVector= m_pViewport->mapPosMouse(static_cast<double>(userInput.x()), static_cast<double>(userInput.y()));
}
// Initialized the mover
void GLC_TurnTableMover::init(const GLC_UserInput& userInput)
{
GLC_Mover::m_PreviousVector.setVect(static_cast<double>(userInput.x()), static_cast<double>(userInput.y()),0.0);
GLC_Camera* pCamera= GLC_Mover::m_pViewport->cameraHandle();
// Calculate angle sign
m_Sign= pCamera->defaultUpVector() * pCamera->upVector();
if (m_Sign == 0)
{
m_Sign= 1;
}
else
{
m_Sign= m_Sign / fabs(m_Sign);
}
pCamera->setUpCam(pCamera->defaultUpVector() * m_Sign);
}