示例#1
0
        private void computeAccess_Click(object sender, EventArgs e)
        {
            string accessToName   = cbAccessTo.GetItemText(cbAccessTo.SelectedItem);
            string accessFromName = cbAccessTo.GetItemText(cbAccessFrom.SelectedItem);

            IAgStkObject toObj   = CommonData.StkRoot.GetObjectFromPath(accessToName);
            IAgStkObject fromObj = CommonData.StkRoot.GetObjectFromPath(accessFromName);
            IAgStkAccess access  = toObj.GetAccessToObject(fromObj);

            access.ComputeAccess();

            // Get access results from data provider
            IAgIntervalCollection accessIntervals    = access.ComputedAccessIntervalTimes;
            IAgDataPrvTimeVar     accessDataProvider = access.DataProviders.GetDataPrvTimeVarFromPath("AER Data//Default");
            Array dataProviderElements = new object[] { "Time", "Azimuth", "Elevation", "Range" };

            dataGridViewAccess.Rows.Clear();
            dataGridViewAccess.Rows.Add();
            for (int i = 0; i < accessIntervals.Count; i++)
            {
                object startTime = null, stopTime = null;
                accessIntervals.GetInterval(i, out startTime, out stopTime);
                IAgDrResult dataProviderResult = accessDataProvider.ExecElements(startTime, stopTime, 1, ref dataProviderElements);
                Array       timeValues         = dataProviderResult.DataSets[0].GetValues();
                Array       azimuthValues      = dataProviderResult.DataSets[1].GetValues();
                Array       elevationValues    = dataProviderResult.DataSets[2].GetValues();
                Array       rangeValues        = dataProviderResult.DataSets[3].GetValues();


                for (int j = 0; j < timeValues.Length; j++)
                {
                    DataGridViewRow row = (DataGridViewRow)dataGridViewAccess.Rows[0].Clone();
                    row.Cells[0].Value = timeValues.GetValue(j).ToString();
                    row.Cells[1].Value = azimuthValues.GetValue(j).ToString();
                    row.Cells[2].Value = elevationValues.GetValue(j).ToString();
                    row.Cells[3].Value = rangeValues.GetValue(j).ToString();
                    dataGridViewAccess.Rows.Add(row);
                }
            }


            ////Get built in Calucation object from Analysis Workbench
            //// Could put into another dataGridView
            //var parameterSets = access.Vgt.ParameterSets["From-To-AER(Body)"];

            ////Get magnitude vector
            //IAgCrdnCalcScalar magnitude = ((IAgCrdn)parameterSets).EmbeddedComponents["From-To-AER(Body).Cartesian.Magnitude"] as IAgCrdnCalcScalar;

            ////Get times of the minimum value for each access interval
            //AgCrdnEventArrayExtrema minTimes = ((IAgCrdn)parameterSets).EmbeddedComponents["From-To-AER(Body).Cartesian.Magnitude.TimesOfLocalMin"] as AgCrdnEventArrayExtrema;
            //Array timeArray = minTimes.FindTimes().Times;
            //for (int i = 0; i < timeArray.Length; i++)
            //{
            //    double result = magnitude.Evaluate(timeArray.GetValue(i)).Value;
            //}
        }
        public List <Waypoint> RasterSearchWaypointGenerator(
            string areaTargetPath, string heading, double speed, double altitude, double turnRadius,
            SwathWidthType swathType, double swathParameter)
        {
            List <Waypoint> waypoints = new List <Waypoint>();

            IAgStkObject areaTarget = root.GetObjectFromPath(areaTargetPath);

            IAgAreaTarget areaTargetObj      = (IAgAreaTarget)areaTarget;
            bool          areaTargetElActive = areaTarget.AccessConstraints.IsConstraintActive(AgEAccessConstraints.eCstrElevationAngle);
            double        restoreAngle       = 0;

            if (!areaTargetElActive)
            {
                IAgAccessCnstrAngle elevationMin = areaTarget.AccessConstraints.AddConstraint(AgEAccessConstraints.eCstrElevationAngle) as IAgAccessCnstrAngle;
                root.UnitPreferences["Angle"].SetCurrentUnit("deg");
                elevationMin.Angle = 90;
            }
            else
            {
                IAgAccessCnstrAngle elevationMin = areaTarget.AccessConstraints.GetActiveConstraint(AgEAccessConstraints.eCstrElevationAngle) as IAgAccessCnstrAngle;
                root.UnitPreferences["Angle"].SetCurrentUnit("deg");
                restoreAngle       = (double)elevationMin.Angle;
                elevationMin.Angle = 90;
            }

            double minLat = 90;
            double maxLat = -90;
            double minLon = 180;
            double maxLon = -180;

            root.UnitPreferences["Angle"].SetCurrentUnit("deg");
            switch (areaTargetObj.AreaType)
            {
            case AgEAreaType.eEllipse:
                IAgDataProviderGroup boundingProvider = areaTarget.DataProviders["Bounding Rectangle"] as IAgDataProviderGroup;
                IAgDataPrvFixed      dpElements       = boundingProvider.Group["Corner Points"] as IAgDataPrvFixed;
                IAgDrResult          atDataPrvResult  = dpElements.Exec();

                Array atLats = atDataPrvResult.DataSets.GetDataSetByName("Geodetic-Lat").GetValues();
                Array atLons = atDataPrvResult.DataSets.GetDataSetByName("Geodetic-Lon").GetValues();
                foreach (object item in atLats)
                {
                    if ((double)item > maxLat)
                    {
                        maxLat = (double)item;
                    }
                    if ((double)item < minLat)
                    {
                        minLat = (double)item;
                    }
                }
                foreach (object item in atLons)
                {
                    if ((double)item > maxLon)
                    {
                        maxLon = (double)item;
                    }
                    if ((double)item < minLon)
                    {
                        minLon = (double)item;
                    }
                }
                break;

            case AgEAreaType.ePattern:
                IAgAreaTypePatternCollection boundary = areaTargetObj.AreaTypeData as IAgAreaTypePatternCollection;

                foreach (IAgAreaTypePattern item in boundary)
                {
                    if ((double)item.Lat > maxLat)
                    {
                        maxLat = (double)item.Lat;
                    }
                    if ((double)item.Lat < minLat)
                    {
                        minLat = (double)item.Lat;
                    }

                    if ((double)item.Lon > maxLon)
                    {
                        maxLon = (double)item.Lon;
                    }
                    if ((double)item.Lon < minLon)
                    {
                        minLon = (double)item.Lon;
                    }
                }

                break;

            default:
                break;
            }
            double deltaLat = maxLat - minLat;
            double deltaLon = maxLon - minLon;

            IAgExecCmdResult cmdResult;

            switch (heading)
            {
            case "NorthSouth":
                cmdResult = root.ExecuteCommand("MeasureSurfaceDistance * " +
                                                minLat + " " + minLon + " " + minLat + " " + maxLon);
                break;

            case "EastWest":
                cmdResult = root.ExecuteCommand("MeasureSurfaceDistance * " +
                                                minLat + " " + minLon + " " + maxLat + " " + minLon);
                break;

            default:
                cmdResult = root.ExecuteCommand("MeasureSurfaceDistance * " +
                                                minLat + " " + minLon + " " + maxLat + " " + minLon);
                break;
            }



            double regionWidth = double.Parse(cmdResult[0]);

            int numPasses = DetermineNumPasses(swathType, swathParameter, altitude, regionWidth, null);

            if (numPasses < 1)
            {
                MessageBox.Show("No Passes.  Try Adjusting Swath Width Parameters");
                return(waypoints);
            }
            root.BeginUpdate();

            string           gvName        = uniqueName("gridTester", AgESTKObjectType.eGroundVehicle);
            IAgGroundVehicle groundVehicle = root.CurrentScenario.Children.New(AgESTKObjectType.eGroundVehicle, gvName) as IAgGroundVehicle;

            groundVehicle.Graphics.SetAttributesType(AgEVeGfxAttributes.eAttributesBasic);
            IAgVeGfxAttributesBasic gvGfx = groundVehicle.Graphics.Attributes as IAgVeGfxAttributesBasic;

            gvGfx.Inherit   = false;
            gvGfx.IsVisible = false;

            IAgVePropagatorGreatArc route = groundVehicle.Route as IAgVePropagatorGreatArc;

            //route.ArcGranularity = 51.333;
            route.SetAltitudeRefType(AgEVeAltitudeRef.eWayPtAltRefWGS84);
            route.Method = AgEVeWayPtCompMethod.eDetermineTimeAccFromVel;

            Waypoint waypoint1 = new Waypoint();
            Waypoint waypoint2 = new Waypoint();
            bool     headEast  = true;


            double loopMin;
            double loopMax;
            double gridAngleStep;

            switch (heading)
            {
            case "NorthSouth":
                loopMin       = minLon;
                loopMax       = maxLon;
                gridAngleStep = (maxLon - minLon) / numPasses;
                break;

            case "EastWest":
                loopMin       = minLat;
                loopMax       = maxLat;
                gridAngleStep = (maxLat - minLat) / numPasses;
                break;

            default:
                loopMin       = minLat;
                loopMax       = maxLat;
                gridAngleStep = .95 * (maxLat - minLat) / numPasses;
                break;
            }

            for (double eval = loopMin; eval <= loopMax; eval += gridAngleStep)
            {
                route.Waypoints.RemoveAll();
                IAgVeWaypointsElement thisWaypoint1;
                IAgVeWaypointsElement thisWaypoint2;
                switch (heading)
                {
                case "NorthSouth":
                    thisWaypoint1           = route.Waypoints.Add();
                    thisWaypoint1.Latitude  = minLat - gridAngleStep;
                    thisWaypoint1.Longitude = eval;
                    thisWaypoint1.Altitude  = 0;

                    thisWaypoint2           = route.Waypoints.Add();
                    thisWaypoint2.Latitude  = maxLat + gridAngleStep;
                    thisWaypoint2.Longitude = eval;
                    thisWaypoint2.Altitude  = 0;
                    break;

                case "EastWest":
                default:
                    thisWaypoint1           = route.Waypoints.Add();
                    thisWaypoint1.Latitude  = eval;
                    thisWaypoint1.Longitude = minLon - gridAngleStep;
                    thisWaypoint1.Altitude  = 0;

                    thisWaypoint2           = route.Waypoints.Add();
                    thisWaypoint2.Latitude  = eval;
                    thisWaypoint2.Longitude = maxLon + gridAngleStep;
                    thisWaypoint2.Altitude  = 0;
                    break;
                }
                route.Propagate();

                IAgStkAccess access = areaTarget.GetAccessToObject((IAgStkObject)groundVehicle);
                access.ComputeAccess();

                IAgDataPrvInterval dpAccess = access.DataProviders["Access Data"] as IAgDataPrvInterval;
                IAgScenario        scen     = root.CurrentScenario as IAgScenario;
                IAgDrResult        result   = dpAccess.Exec(scen.StartTime, scen.StopTime);


                if (result.DataSets.Count > 0)
                {
                    Array startTimes = result.DataSets.GetDataSetByName("Start Time").GetValues();
                    Array stopTimes  = result.DataSets.GetDataSetByName("Stop Time").GetValues();

                    string startTime = (string)startTimes.GetValue(0);
                    string stopTime  = (string)stopTimes.GetValue(stopTimes.GetLength(0) - 1);

                    IAgDataProviderGroup dpLLA         = ((IAgStkObject)groundVehicle).DataProviders["LLA State"] as IAgDataProviderGroup;
                    IAgDataPrvTimeVar    dpElements    = dpLLA.Group["Fixed"] as IAgDataPrvTimeVar;
                    IAgDrResult          DataPrvResult = dpElements.ExecSingle(startTime);

                    Array Lats = DataPrvResult.DataSets.GetDataSetByName("Lat").GetValues();
                    Array Lons = DataPrvResult.DataSets.GetDataSetByName("Lon").GetValues();

                    waypoint1                 = new Waypoint();
                    waypoint1.Latitude        = (double)Lats.GetValue(0);
                    waypoint1.Longitude       = (double)Lons.GetValue(0);
                    waypoint1.Altitude        = altitude;
                    waypoint1.SurfaceAltitude = 0;
                    waypoint1.Speed           = speed;
                    waypoint1.TurnRadius      = turnRadius;


                    IAgDataProviderGroup dpLLA1         = ((IAgStkObject)groundVehicle).DataProviders["LLA State"] as IAgDataProviderGroup;
                    IAgDataPrvTimeVar    dpElements1    = dpLLA1.Group["Fixed"] as IAgDataPrvTimeVar;
                    IAgDrResult          DataPrvResult1 = dpElements1.ExecSingle(stopTime);

                    Array Lats1 = DataPrvResult1.DataSets.GetDataSetByName("Lat").GetValues();
                    Array Lons1 = DataPrvResult1.DataSets.GetDataSetByName("Lon").GetValues();

                    waypoint2                 = new Waypoint();
                    waypoint2.Latitude        = (double)Lats1.GetValue(0);
                    waypoint2.Longitude       = (double)Lons1.GetValue(0);
                    waypoint2.Altitude        = altitude;
                    waypoint2.SurfaceAltitude = 0;
                    waypoint2.Speed           = speed;
                    waypoint2.TurnRadius      = turnRadius;


                    if (headEast)
                    {
                        waypoints.Add(waypoint1);
                        waypoints.Add(waypoint2);
                    }
                    else
                    {
                        waypoints.Add(waypoint2);
                        waypoints.Add(waypoint1);
                    }
                    headEast = !headEast;
                }
                access.RemoveAccess();
            }

            ((IAgStkObject)groundVehicle).Unload();

            if (!areaTargetElActive)
            {
                areaTarget.AccessConstraints.RemoveConstraint(AgEAccessConstraints.eCstrElevationAngle);
            }
            else
            {
                IAgAccessCnstrAngle elevationMin = areaTarget.AccessConstraints.GetActiveConstraint(AgEAccessConstraints.eCstrElevationAngle) as IAgAccessCnstrAngle;
                root.UnitPreferences["Angle"].SetCurrentUnit("deg");
                elevationMin.Angle = restoreAngle;
            }

            root.EndUpdate();
            root.UnitPreferences.ResetUnits();
            return(waypoints);
        }