MStatus CXRayCameraExport::ExportCamera(const MFileObject& file)
{
MDagPath node;
MObject component;
MSelectionList list;
MFnDagNode nodeFn;
MFnCamera C;
MStatus st ;
MGlobal::getActiveSelectionList( list );
for ( u32 index = 0; index < list.length(); ++index )
{
list.getDagPath ( index, node, component );
nodeFn.setObject ( node );
st = C.setObject (node);
if(st!=MStatus::kSuccess)
{
Msg ("Selected object is not a camera");
return MStatus::kInvalidParameter;
}
}
Msg("exporting camera named [%s]", C.name().asChar());
MTime tmTemp,tmTemp2;
MTime tmQuant;
// Remember the frame the scene was at so we can restore it later.
MTime storedFrame = MAnimControl::currentTime();
MTime startFrame = MAnimControl::minTime();
MTime endFrame = MAnimControl::maxTime();
tmTemp.setUnit (MTime::uiUnit());
tmTemp2.setUnit (MTime::uiUnit());
tmQuant.setUnit (MTime::uiUnit());
tmQuant = 10.0; //3 time in sec. temporary
COMotion M;
M.SetParam (0, (int)(endFrame-startFrame).as(MTime::uiUnit()), 30);
Fvector P,R;
tmTemp = startFrame;
MObject cam_parent = C.parent(0);
MFnTransform parentTransform(cam_parent);
MDistance dist;
while(tmTemp <= endFrame)
{
MAnimControl::setCurrentTime( tmTemp );
MMatrix parentMatrix = parentTransform.transformation().asMatrix();
MMatrix cv;
cv.setToIdentity ();
cv[2][2] = -1.0;
MMatrix TM;
TM = (cv*parentMatrix)*cv;
TM = cv*TM;
parentMatrix = TM;
Msg ("frame[%d]",(int)tmTemp.as(MTime::uiUnit()));
dist.setValue (parentMatrix[3][0]);
P.x = (float)dist.asMeters();
dist.setValue (parentMatrix[3][1]);
P.y = (float)dist.asMeters();
dist.setValue (parentMatrix[3][2]);
P.z = (float)dist.asMeters();
Msg ("P %3.3f,%3.3f,%3.3f",P.x,P.y,P.z);
double rot[3];
MTransformationMatrix::RotationOrder rot_order = MTransformationMatrix::kXYZ;
st = parentTransform.getRotation( rot, rot_order );
R.x = -(float)rot[0];
R.y = -(float)rot[1];
R.z = -(float)rot[2];
//. Msg ("rt %3.3f,%3.3f,%3.3f kWorld",R.x,R.y,R.z);
tmTemp2 = tmTemp-startFrame;
M.CreateKey (float(tmTemp2.as(MTime::uiUnit()))/30.0f,P,R);
if(tmTemp==endFrame)
break;
tmTemp += tmQuant;
if(tmTemp>endFrame)
tmTemp=endFrame;
};
MString fn_save_to = file.fullName();
fn_save_to += ".anm";
Msg("file full name [%s]", fn_save_to);
M.SaveMotion (fn_save_to.asChar());
MAnimControl::setCurrentTime( storedFrame );
return MS::kSuccess;
}
