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Corrected small bugs on rotating after scaling+translating 

changed void PlaneMode::Apply and void SphereMode::Apply
This commit is contained in:
Paolo Cignoni 2006-01-12 15:40:05 +00:00
parent e7b6fd9b9f
commit 1cb45963f9
1 changed files with 10 additions and 6 deletions
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16
wrap/gui/trackmode.cpp
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@ -24,6 +24,9 @@
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$Log: not supported by cvs2svn $
Revision 1.14 2005/07/15 16:39:30 callieri
in SphereMode::Hit added a check on the sphere intersection, if no intersection, calculating distance could generate a NAN exception
Revision 1.13 2005/06/29 15:22:26 callieri
changed the name of some intersection functions to avoid ambiguity
@ -115,10 +118,11 @@ Point3f TrackMode::HitViewPlane(Trackball *tb, const Point3f &p) {
void SphereMode::Apply(Trackball *tb, Point3f new_point) {
Point3f hitOld=Hit(tb, tb->last_point);
Point3f hitNew=Hit(tb, new_point);
// tb->Hits.push_back(hitNew);
tb->Hits.push_back(hitNew);
Point3f center = tb->track.tra+tb->center;
Point3f axis = (hitNew- center)^(hitOld- center);
// Point3f center = tb->track.tra+tb->center; // original 2006 01 12
Point3f center = 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));
@ -290,9 +294,9 @@ 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);
Matrix44f m; tb->track.rot.ToMatrix(m);
tb->track.tra = tb->last_track.tra + Inverse(m)*Point3f(hitNew- hitOld);
Matrix44f m; tb->track.rot.ToMatrix(m);
//tb->track.tra = tb->last_track.tra + Inverse(m)*Point3f(hitNew- hitOld);// orig 2006 01 12
tb->track.tra = tb->last_track.tra + Inverse(m)*Point3f(hitNew- hitOld)/tb->track.sca;;
}