Beispiel #1
0
        // Move a gap start/stop point to a new location. Return the new gap array. The gap array is NOT simplified.
        public static LegGap[] MoveStartStopPoint(SymPath path, LegGap[] gaps, PointF oldPt, PointF newPt)
        {
            LegGap[] newGaps = (LegGap[]) gaps.Clone();
            float newLengthAlongPath = path.LengthToPoint(newPt);

            for (int i = 0; i < newGaps.Length; ++i) {
                PointF startPt = path.PointAtLength(gaps[i].distanceFromStart);
                PointF endPt = path.PointAtLength(gaps[i].distanceFromStart + gaps[i].length);

                if (Geometry.Distance(startPt, oldPt) < 0.01) {
                    // Moving start point of the gap.
                    newGaps[i].length -= (newLengthAlongPath - newGaps[i].distanceFromStart);
                    newGaps[i].distanceFromStart = newLengthAlongPath;
                }
                else if (Geometry.Distance(endPt, oldPt) < 0.01) {
                    // Moving end point of the gap.
                    newGaps[i].length = newLengthAlongPath - gaps[i].distanceFromStart;
                }
            }

            return newGaps;
        }
Beispiel #2
0
        // Change the gaps associated with a leg.
        public static void ChangeLegGaps(EventDB eventDB, Id<ControlPoint> controlId1, Id<ControlPoint> controlId2, LegGap[] newGaps)
        {
            // Get the leg object for this leg. Create one if needed.
            Id<Leg> legId = QueryEvent.FindLeg(eventDB, controlId1, controlId2);
            Leg leg;
            if (legId.IsNone)
                leg = new Leg(controlId1, controlId2);
            else
                leg = (Leg) eventDB.GetLeg(legId).Clone();

            // Change the gaps.
            leg.gaps = (newGaps == null) ? null : (LegGap[]) newGaps.Clone();

            // Write the change leg object to the event DB. If the leg is vacuous, could involve removing the leg.
            if (leg.IsVacuous()) {
                if (legId.IsNotNone)
                    eventDB.RemoveLeg(legId);
            }
            else {
                if (legId.IsNone)
                    eventDB.AddLeg(leg);
                else
                    eventDB.ReplaceLeg(legId, leg);
            }
        }