suppose i have a face normal info vector array? and i want this to be
expressed as a euler rotation ? any clues ? ? ? essentially i need a
torus to be in parallel to another face ? am i being a moron ? i m
sure i am and i bet there is a very simple method but i m just messing
around with a script i found but it does nt seem to be in the right
ball park. This is MEL but i ve written the python wrapper ....
vector $up = <<0.5 , 0.5 , 0.5>>;
vector $direction = <<$x, $y , $z >> ;
// calculate the side vector
vector $sideVec = cross( $up, $direction );
vector $upVec = cross( $direction, $sideVec );
float $cosY = sqrt( ($sideVec.x)*($sideVec.x) + ($sideVec.y)*
($sideVec.y) );
// solve each angle
float $rotZ = atan2( ($sideVec.y), ($sideVec.x) );
float $rotY = atan2( -($sideVec.z), ( (($sideVec.x)+
($sideVec.y)) / (cos( $rotZ ) + sin( $rotZ ) ) ) );
float $rotX = atan2( ($upVec.z), ($direction.z) );
// convert to degrees
$rotX = rad_to_deg( $rotX );
$rotY = rad_to_deg( $rotY );
$rotZ = rad_to_deg( $rotZ );
// return x,y,z rotations
print $rotX; print " ";
print $rotY; print " ";
print $rotZ;
i m pretty sure i m not giving it the right inputs but what does it
want !?!?! Any help would be greatly appreciated ?
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http://groups.google.com/group/python_inside_maya
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