Lukich Posted March 5, 2005 Share Posted March 5, 2005 I was trying to set up the following simulation: a prticle flies through the group bounding box. then i appended an event pop to it, which was set to generate an event when the number of points in the group bounding box is greater or equal to 1. this event is used to turn on an interact pop. my problem is this: there is a single particle flying from the emitter. if in the event pop i use a rule $NPT>=1 everything works great. the event happens, interact pop gets triggered. however, if i set my expression to $NPT==1, the event does not get generated. do you guys know if there's something wrong with the expresison itself? i only have one particle entering the group bounding box, so $NPT ==1 should be fine, no? in any case, the filein question is attached, i'd very grateful for your help! thanks a lot, luka popevent.zip Quote Link to comment Share on other sites More sharing options...
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