4. Looping in the timeline.

Looping in the timeline.

  • H

    THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 20/12/2009 at 18:13, xxxxxxxx wrote:

    User Information:
    Cinema 4D Version:   11 
    Platform:   Windows  ;   
    Language(s) :     C++  ;

    ---------
    I am trying to set up so that the users of my planet generator plugin (which is an object plugin) can click a check box and set up looping orbits.  I have it set up so that when the user enables orbit, they can drag another object into a link box and the new object then gets aligned to a spline that is the orbit path.  My goal is then to allow the user to click a check box and this will set up a loop so that the new object orbits the planet continuously.  I have been trying to set this up with keyframes. Here's what I have so far.

      
          //Orbit Looping  
          if (op->GetDataInstance()->GetBool(ORBIT_LOOP))  
          {  
              LONG lngI = 0;  
              Real nom;  
              Real deNom;  
              BaseTime btime = doc->GetTime();  
                
              btime.SetDenominator(op->GetDataInstance()->GetReal(ORBIT_SPEED));  
              btime.SetNominator(0);  
  
              deNom = btime.GetDenominator();  
                
  
              for (lngI; lngI < 50; lngI++)  
              {  
                  nom = btime.GetNominator();      
                  btime.SetNominator(nom + deNom);  
                  GePrint("The NOM is: " + RealToString(btime.GetNominator()));  
  
                  //Add a key  
                  if (lngI == 1 || lngI == 3 || lngI == 5 )  
                  {  
                      op->GetDataInstance()->SetReal(ORBIT_POSITION, 0);  
                      GePrint("lngI is ODD" + RealToString(op->GetDataInstance()->GetReal(ORBIT_POSITION)));  
                  }  
  
                  if (lngI == 2 || lngI == 4 || lngI == 6 )  
                  {  
                      op->GetDataInstance()->SetReal(ORBIT_POSITION, 1.0);  
                      GePrint("lngI is EVEN" + RealToString(op->GetDataInstance()->GetReal(ORBIT_POSITION)));  
                  }  
  
                  CKey *key = track->GetCurve()->AddKey(btime,0);  
                  if (!key) return false;      
              }  
  
          }

    I would like for the ORBIT POSITION to be at 0 on teh first pass, and then 100 on the second pass.. and to alternate back and forth until all keyframes are added and at each pass set a keyframe so that the object appears to continuously orbit the planet.  As I am typing this I think it might be better to set up one loop and then to do a repeat command somehow..   like you can in the timeline..   is that possible?

    Anyway,  I would love to hear some ideas on how I could achieve this effectively.

    Or any thoughts on the code I have provided.

    Thanks.

    ~Shawn

    0
  • H

    THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 21/12/2009 at 02:35, xxxxxxxx wrote:

    You can set the track's loop mode with CTrack's SetAfter() and SetBefore() methods.

    cheers,
    Matthias

    0
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