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Trackball translation corrected

This commit is contained in:
Paolo Cignoni 2005-02-11 11:44:07 +00:00
parent abaae0c2fd
commit 6a41a6ba9b
1 changed files with 10 additions and 4 deletions
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10
wrap/gui/trackmode.cpp
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.11 2005/02/02 16:46:41 pietroni
some warning corrected
Revision 1.10 2005/01/14 15:44:03 ganovelli
PlaneMode completed
@ -107,7 +110,8 @@ void SphereMode::Apply(Trackball *tb, Point3f new_point) {
Point3f hitNew=Hit(tb, new_point);
// tb->Hits.push_back(hitNew);
Point3f axis = (hitNew- tb->center)^(hitOld- tb->center);
Point3f center = tb->track.tra+tb->center;
Point3f axis = (hitNew- center)^(hitOld- center);
// Figure out how much to rotate around that axis.
//float phi=Angle((hitNew- tb->center),(hitOld- tb->center));
@ -276,7 +280,9 @@ Point3f SphereMode::Hit(Trackball *tb, const Point3f &p) {
void PlaneMode::Apply(Trackball *tb, Point3f new_point) {
Point3f hitOld = HitViewPlane(tb, tb->last_point);
Point3f hitNew = HitViewPlane(tb, new_point);
tb->track.tra = tb->last_track.tra + Point3f(hitNew- hitOld);
Matrix44f m; tb->track.rot.ToMatrix(m);
tb->track.tra = tb->last_track.tra + Inverse(m)*Point3f(hitNew- hitOld);
}