C++ (Cpp) CAMdataptr示例

示例#1

文件： cam_edit.C 项目： Benignoperez/jot-lib

int
Cam_int_edit::pan(
   CEvent &e,
   State *&
   )
{
   DEVice_2d  *ptr=(DEVice_2d *)e._d;
   CAMptr      cam  (e.view()->cam());
   CAMdataptr  data (cam->data());
   Wvec        delta(Wpt(ptr->cur(),_down_pt) - Wpt(ptr->old(),_down_pt));

   data->translate(-delta);
   data->set_at(Wline(data->from(), data->at_v()).project(_down_pt));
   data->set_center(data->at());
   return 0;
}

示例#2

文件： cam_pz.cpp 项目： QuLogic/jot-lib

int
Cam_int::zoom(
   CEvent &e,
   State *&
   )
{
   if (debug_fsa)
      cerr << "Cam_int::zoom"
           << endl;

   DEVice_2d *ptr=(DEVice_2d *)e._d;
   CAMptr     cam  (e.view()->cam());
   CAMdataptr data (cam->data());
   XYvec      delta(ptr->delta());
   double     ratio;

   if (data->persp()) {
      Wvec    movec(_down_pt - data->from());

      data->set_center(_down_pt);
      data->translate(movec.normalized() * (movec.length() * delta[1] * -4));
   
      ratio = cam->height() / cam->width() * 
         (movec * data->at_v()) * data->width() / data->focal();

   } else {
      Wpt     spt  (XYpt(ptr->cur()[0],_scale_pt[1]));
      Wvec    svec (spt - Wline(data->from(), data->at_v()).project(spt));
      double  sfact(1 + delta[1]);
      data->translate( svec * (1.0 - sfact));
      data->set_width (data->width() * sfact);
      data->set_height(data->height()* sfact);
      ratio = data->height();
   }

   data->translate(-delta[0]/2 * data->right_v() * ratio);
   data->set_at(Wline(data->from(), data->at_v()).project(data->center()));
   data->set_center(data->at());


   return 0;
}