void ccGenericMesh::applyGLTransformation(const ccGLMatrix& trans)
{
//vertices should be handled another way!
//we must take care of the triangle normals!
if (m_triNormals && (!getParent() || !getParent()->isKindOf(CC_MESH)))
{
bool recoded = false;
//if there is more triangle normals than the size of the compressed
//normals array, we recompress the array instead of recompressing each normal
unsigned i,numTriNormals = m_triNormals->currentSize();
if (numTriNormals>ccNormalVectors::GetNumberOfVectors())
{
NormsIndexesTableType* newNorms = new NormsIndexesTableType;
if (newNorms->reserve(ccNormalVectors::GetNumberOfVectors()))
{
for (i=0; i<ccNormalVectors::GetNumberOfVectors(); i++)
{
CCVector3 new_n(ccNormalVectors::GetNormal(i));
trans.applyRotation(new_n);
normsType newNormIndex = ccNormalVectors::GetNormIndex(new_n.u);
newNorms->addElement(newNormIndex);
}
m_triNormals->placeIteratorAtBegining();
for (i=0; i<numTriNormals; i++)
{
m_triNormals->setValue(i,newNorms->getValue(m_triNormals->getCurrentValue()));
m_triNormals->forwardIterator();
}
recoded=true;
}
newNorms->clear();
newNorms->release();
newNorms=0;
}
//if there is less triangle normals than the compressed normals array size
//(or if there is not enough memory to instantiate the temporary array),
//we recompress each normal ...
if (!recoded)
{
//on recode direct chaque normale
m_triNormals->placeIteratorAtBegining();
for (i=0; i<numTriNormals; i++)
{
normsType* _theNormIndex = m_triNormals->getCurrentValuePtr();
CCVector3 new_n(ccNormalVectors::GetNormal(*_theNormIndex));
trans.applyRotation(new_n.u);
*_theNormIndex = ccNormalVectors::GetNormIndex(new_n.u);
m_triNormals->forwardIterator();
}
}
}
else
{
//TODO: process failed!
}
}
void ccFacet::applyGLTransformation(const ccGLMatrix &trans)
{
ccHObject::applyGLTransformation(trans);
// move/rotate the center to its new location
trans.apply(m_center);
// apply the rotation to the normal of the plane equation
trans.applyRotation(m_planeEquation);
// compute new d-parameter from the updated values
CCVector3 n(m_planeEquation);
m_planeEquation[3] = n.dot(m_center);
}
ccBBox ccDrawableObject::getFitBB(ccGLMatrix& trans)
{
//Default behavior: returns axis aligned bounding box!
trans.toIdentity();
return getBB(true,false,m_currentDisplay);
}
void MatrixDisplayDlg::fillDialogWith(const ccGLMatrix& mat)
{
m_mat = ccGLMatrixd(mat.data());
int precision = ccGui::Parameters().displayedNumPrecision;
//display as 4x4 matrix
maxTextEdit->setText(mat.toString(precision));
//display as rotation vector/angle
{
PointCoordinateType angle_rad;
CCVector3 axis3D, t3D;
mat.getParameters(angle_rad, axis3D, t3D);
fillDialogWith(CCVector3d::fromArray(axis3D.u),angle_rad,CCVector3d::fromArray(t3D.u),precision);
}
}
void ccGraphicalTransformationTool::glRotate(const ccGLMatrix& rotMat)
{
switch(rotComboBox->currentIndex())
{
case 0: //XYZ
m_rotation = rotMat * m_rotation;
break;
case 1: //X
m_rotation = rotMat.xRotation() * m_rotation;
break;
case 2: //Y
m_rotation = rotMat.yRotation() * m_rotation;
break;
case 3: //Z
m_rotation = rotMat.zRotation() * m_rotation;
break;
}
updateAllGLTransformations();
}
void ccClipBox::get(ccBBox& extents, ccGLMatrix& transformation)
{
extents = m_box;
if (isGLTransEnabled())
{
transformation = m_glTrans;
}
else
{
transformation.toIdentity();
}
}
//===============================================getAbsoluteGLTransformation===================================================//
//由祖先到子物体，将旋转矩阵依次累加
bool ccHObject::getAbsoluteGLTransformation(ccGLMatrix& trans) const
{
trans.toIdentity();
bool hasGLTrans = false;
//recurse among ancestors to get the absolute GL transformation
const ccHObject* obj = this;
while (obj){
if (obj->isGLTransEnabled()){ //是否可进行变换
trans = trans * obj->getGLTransformation();
hasGLTrans = true;
}
obj = obj->getParent();
}
return hasGLTrans;
}
ccGLMatrix ccGLMatrix::Interpolate(float coef, const ccGLMatrix& glMat1, const ccGLMatrix& glMat2)
{
//we compute the transformation matrix between glMat1 and glMat2
ccGLMatrix invTrans1 = glMat1.inverse();
ccGLMatrix m12 = invTrans1 * glMat2;
CCVector3 axis,tr;
float alpha;
m12.getParameters(alpha,axis,tr);
//we only have to interpolate the angle value
alpha *= coef;
//and the translation
tr *= coef;
//we build-up the resulting matrix
m12.initFromParameters(alpha,axis,tr);
//eventually we build-up resulting transformation
return glMat1 * m12;
}
void ccApplyTransformationDlg::updateAll(const ccGLMatrix& mat, bool textForm/*=true*/, bool axisAngleForm/*=true*/, bool eulerForm/*=true*/)
{
if (textForm)
{
QString matText = mat.toString();
matrixTextEdit->blockSignals(true);
matrixTextEdit->setPlainText(matText);
matrixTextEdit->blockSignals(false);
}
if (axisAngleForm)
{
rxAxisDoubleSpinBox->blockSignals(true);
ryAxisDoubleSpinBox->blockSignals(true);
rzAxisDoubleSpinBox->blockSignals(true);
rAngleDoubleSpinBox->blockSignals(true);
txAxisDoubleSpinBox->blockSignals(true);
tyAxisDoubleSpinBox->blockSignals(true);
tzAxisDoubleSpinBox->blockSignals(true);
PointCoordinateType alpha = 0;
CCVector3 axis,t;
mat.getParameters(alpha,axis,t);
rxAxisDoubleSpinBox->setValue(axis.x);
ryAxisDoubleSpinBox->setValue(axis.y);
rzAxisDoubleSpinBox->setValue(axis.z);
rAngleDoubleSpinBox->setValue(alpha * CC_RAD_TO_DEG);
txAxisDoubleSpinBox->setValue(t.x);
tyAxisDoubleSpinBox->setValue(t.y);
tzAxisDoubleSpinBox->setValue(t.z);
rxAxisDoubleSpinBox->blockSignals(false);
ryAxisDoubleSpinBox->blockSignals(false);
rzAxisDoubleSpinBox->blockSignals(false);
rAngleDoubleSpinBox->blockSignals(false);
txAxisDoubleSpinBox->blockSignals(false);
tyAxisDoubleSpinBox->blockSignals(false);
tzAxisDoubleSpinBox->blockSignals(false);
}
if (eulerForm)
{
ePhiDoubleSpinBox ->blockSignals(true);
eThetaDoubleSpinBox ->blockSignals(true);
ePsiDoubleSpinBox ->blockSignals(true);
etxAxisDoubleSpinBox->blockSignals(true);
etyAxisDoubleSpinBox->blockSignals(true);
etzAxisDoubleSpinBox->blockSignals(true);
PointCoordinateType phi,theta,psi = 0;
CCVector3 t;
mat.getParameters(phi,theta,psi,t);
ePhiDoubleSpinBox ->setValue(phi * CC_RAD_TO_DEG);
eThetaDoubleSpinBox ->setValue(theta * CC_RAD_TO_DEG);
ePsiDoubleSpinBox ->setValue(psi * CC_RAD_TO_DEG);
etxAxisDoubleSpinBox->setValue(t.x);
etyAxisDoubleSpinBox->setValue(t.y);
etzAxisDoubleSpinBox->setValue(t.z);
ePhiDoubleSpinBox ->blockSignals(false);
eThetaDoubleSpinBox ->blockSignals(false);
ePsiDoubleSpinBox ->blockSignals(false);
etxAxisDoubleSpinBox->blockSignals(false);
etyAxisDoubleSpinBox->blockSignals(false);
etzAxisDoubleSpinBox->blockSignals(false);
}
}