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define new_to_old_hpr()

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This commit is contained in:
David Rose 2004-12-07 20:11:48 +00:00
parent 743a5d12fb
commit 962cfa369a
2 changed files with 28 additions and 0 deletions
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26
panda/src/linmath/compose_matrix_src.cxx
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@ -633,3 +633,29 @@ old_to_new_hpr(const FLOATNAME(LVecBase3) &old_hpr) {
decompose_matrix_new_hpr(mat, new_scale, new_shear, new_hpr);
return new_hpr;
}
////////////////////////////////////////////////////////////////////
// Function: new_to_old_hpr
// Description: Converts the HPR as represented in the new, correct
// representation to the old, broken way. Returns the
// old HPR. Useful only for backporting.
//
// This function is provided to ease transition from new
// systems that relied on Panda's original broken HPR
// calculation.
////////////////////////////////////////////////////////////////////
FLOATNAME(LVecBase3)
new_to_old_hpr(const FLOATNAME(LVecBase3) &new_hpr) {
FLOATNAME(LMatrix3) mat;
compose_matrix_new_hpr(mat,
FLOATNAME(LVecBase3)(1.0f, 1.0f, 1.0f),
FLOATNAME(LVecBase3)::zero(),
new_hpr);
FLOATNAME(LVecBase3) old_scale;
FLOATNAME(LVecBase3) old_shear;
FLOATNAME(LVecBase3) old_hpr;
decompose_matrix_old_hpr(mat, old_scale, old_shear, old_hpr);
return old_hpr;
}

2
panda/src/linmath/compose_matrix_src.h
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@ -174,6 +174,8 @@ decompose_matrix_new_hpr(const FLOATNAME(LMatrix4) &mat, FLOATTYPE components[nu
EXPCL_PANDA FLOATNAME(LVecBase3)
old_to_new_hpr(const FLOATNAME(LVecBase3) &old_hpr);
EXPCL_PANDA FLOATNAME(LVecBase3)
new_to_old_hpr(const FLOATNAME(LVecBase3) &new_hpr);
END_PUBLISH