コード例 #1
0
        public double CalculateDistanceOfNextStep(LatLng CurrentLocation, int index, DirectionStep step)
        {
            if (index >= step.PolyLineIndex)
            {
                return(0);
            }
            double d = 0;

            for (int i = index + 1; i < (step.PolyLineIndex); i++)
            {
                if (i + 1 < Points.Count)
                {
                    d += util.GetDistanceBetweenPoints(Points[i], Points[i + 1]);
                }
            }
            d += util.GetDistanceBetweenPoints(CurrentLocation, Points[index + 1]);
            return(d);
        }
コード例 #2
0
        public DirectionStep GetDirectionNextStep(int PolyLineIndex)
        {
            if (PolyLineIndex < 0 || PolyLineIndex >= this.Points.Count)
            {
                return(null);
            }
            DirectionStep step = null;

            foreach (DirectionStep stp in this.Steps)
            {
                if (stp.PolyLineIndex > PolyLineIndex)
                {
                    return(stp);
                }
                step = stp;
            }
            return(null);
        }
コード例 #3
0
        public string GetDirectionDiscriptionFromLocation(LatLng loc)
        {
            int index = GetNearestPolyIndex(loc);

            if (index < 0)
            {
                string Description = "You've lost your way!!!!";
                if (!isLostWay)
                {
#if SPEECH_ENABLED
                    speaker.SpeakAsync(Description);
#endif
                    isLostWay = true;
                }
                return(Description);
            }
            else
            {
                DirectionStep step = GetDirectionNextStep(index);
                isLostWay = false;
                if (step != null)
                {
                    double distance = CalculateDistanceOfNextStep(loc, index, step);
                    string str_dis;
                    if (distance < 1)
                    {
                        str_dis = " in " + String.Format("{0:0}", distance * 1000) + " Meters";
                    }
                    else
                    {
                        str_dis = " in " + String.Format("{0:0.0}", distance) + " KiloMeters";
                    }
                    string Description = step.step_description + str_dis;
                    if (!step.far_speech)
                    {
#if SPEECH_ENABLED
                        speaker.SpeakAsync(Description);
#endif
                        if (distance * 1000 < 300)
                        {
                            step.near_speech = true;
                        }
                        step.far_speech = true;
                    }
                    if (distance * 1000 < 300 && step.near_speech == false)
                    {
                        step.near_speech = true;
#if SPEECH_ENABLED
                        speaker.SpeakAsync(Description);
#endif
                    }

                    return(Description);
                }
                else
                {
                    isLostWay = true;
                    double distance = util.GetDistanceBetweenPoints(loc, Points[Points.Count - 1]);
                    string str_dis;
                    if (distance < 1)
                    {
                        str_dis = "in " + String.Format("{0:0}", distance * 1000) + " Meters";
                    }
                    else
                    {
                        str_dis = "in " + String.Format("{0:0.0}", distance) + " KiloMeters";
                    }
                    string Description = "Arrive " + str_dis;
                    if (distance * 1000 < 500)
                    {
                        if (!isArrived)
                        {
#if SPEECH_ENABLED
                            speaker.SpeakAsync(Description);
#endif
                        }
                    }
                    isArrived = true;
                    return(Description);
                }
            }
        }