49 Body* body()
const {
return body_.get(); }
50 void setBody(
Body* body) { body_ = body; }
51 Point* point()
const {
return point_.get(); }
52 void setPoint(
Point* point) { point_ = point; }
53 const TimeInterval& interval()
const {
return interval_; }
54 void setInterval(
const TimeInterval& interval) { interval_ = interval; }
55 double step()
const {
return step_; }
56 void setStep(
double step) { step_ = step; }