void GfxCanvasItem::moveToParent(GfxCanvasItem *p)
{
if(p == _parent || !p) return;
// We (may) need to adjust x, y, scale and visible
qreal x = globalX();
qreal y = globalY();
qreal s = globalScale();
qreal v = globalVisible();
setParent(p);
if(x != globalX()) {
this->x().setValue((x - _parent->globalX()) / _parent->globalScale());
}
if(y != globalY()) {
this->y().setValue((y - _parent->globalY()) / _parent->globalScale());
}
if(s != globalScale()) {
scale().setValue(s / _parent->globalScale());
}
if(v != globalVisible()) {
qreal pv = _parent->globalVisible();
if(pv)
visible().setValue(v / pv);
}
}
void dgCollisionInstance::SetGlobalScale (const dgVector& scale)
{
// calculate current matrix
dgMatrix matrix(dgGetIdentityMatrix());
matrix[0][0] = m_scale.m_x;
matrix[1][1] = m_scale.m_y;
matrix[2][2] = m_scale.m_z;
matrix = m_aligmentMatrix * matrix * m_localMatrix;
// extract the original local matrix
dgMatrix transpose (matrix.Transpose());
dgVector globalScale (dgSqrt (transpose[0].DotProduct(transpose[0]).GetScalar()), dgSqrt (transpose[1].DotProduct(transpose[1]).GetScalar()), dgSqrt (transpose[2].DotProduct(transpose[2]).GetScalar()), dgFloat32 (1.0f));
dgVector invGlobalScale (dgFloat32 (1.0f) / globalScale.m_x, dgFloat32 (1.0f) / globalScale.m_y, dgFloat32 (1.0f) / globalScale.m_z, dgFloat32 (1.0f));
dgMatrix localMatrix (m_aligmentMatrix.Transpose() * m_localMatrix);
localMatrix.m_posit = matrix.m_posit * invGlobalScale;
dgAssert (localMatrix.m_posit.m_w == dgFloat32 (1.0f));
if ((dgAbs (scale[0] - scale[1]) < dgFloat32 (1.0e-4f)) && (dgAbs (scale[0] - scale[2]) < dgFloat32 (1.0e-4f))) {
m_localMatrix = localMatrix;
m_localMatrix.m_posit = m_localMatrix.m_posit * scale | dgVector::m_wOne;
m_aligmentMatrix = dgGetIdentityMatrix();
SetScale (scale);
} else {
// create a new scale matrix
localMatrix[0] = localMatrix[0] * scale;
localMatrix[1] = localMatrix[1] * scale;
localMatrix[2] = localMatrix[2] * scale;
localMatrix[3] = localMatrix[3] * scale;
localMatrix[3][3] = dgFloat32 (1.0f);
// decompose into to align * scale * local
localMatrix.PolarDecomposition (m_localMatrix, m_scale, m_aligmentMatrix);
m_localMatrix = m_aligmentMatrix * m_localMatrix;
m_aligmentMatrix = m_aligmentMatrix.Transpose();
dgAssert (m_localMatrix.TestOrthogonal());
dgAssert (m_aligmentMatrix.TestOrthogonal());
//dgMatrix xxx1 (dgGetIdentityMatrix());
//xxx1[0][0] = m_scale.m_x;
//xxx1[1][1] = m_scale.m_y;
//xxx1[2][2] = m_scale.m_z;
//dgMatrix xxx (m_aligmentMatrix * xxx1 * m_localMatrix);
bool isIdentity = true;
for (dgInt32 i = 0; i < 3; i ++) {
isIdentity &= dgAbs (m_aligmentMatrix[i][i] - dgFloat32 (1.0f)) < dgFloat32 (1.0e-5f);
isIdentity &= dgAbs (m_aligmentMatrix[3][i]) < dgFloat32 (1.0e-5f);
}
m_scaleType = isIdentity ? m_nonUniform : m_global;
m_maxScale = dgMax(m_scale[0], m_scale[1], m_scale[2]);
m_invScale = dgVector (dgFloat32 (1.0f) / m_scale[0], dgFloat32 (1.0f) / m_scale[1], dgFloat32 (1.0f) / m_scale[2], dgFloat32 (0.0f));
}
}
void Node::SetGlobalScale(const Vertex3& scale)
{
PNode parent = parent_.lock();
if (parent == nullptr)
{
SetScale(scale);
}
else
{
Vertex3 globalScale(parent->GetGlobalScale());
globalScale.x = 1 / globalScale.x;
globalScale.y = 1 / globalScale.y;
globalScale.z = 1 / globalScale.z;
SetScale(globalScale * scale);
}
}