public void ProcessRequest(HttpContext context)
        {
            context.Response.ContentType = "application/json";

            using (var outputStream = new StreamWriter(context.Response.OutputStream))
            {
                var cesiumWriter = new CesiumStreamWriter();
                var output       = new CesiumOutputStream(outputStream);

                output.PrettyFormatting = true;

                // The whole body of CZML must be wrapped in a JSON array, opened here.
                output.WriteStartSequence();

                // The first packet (JSON object) of CZML must be the document packet.
                using (var entity = cesiumWriter.OpenPacket(output))
                {
                    entity.WriteId("document");
                    entity.WriteVersion("1.0");
                }


                // write an entity for each rocket launch phase

                var rocketData = new RocketTrajectoryData();

                var entities = rocketData.GetBetterRocketData();

                // get each phase


                foreach (var stage in entities.stages)
                {
                    var cartesianVelocitySet = GenerateCartesianVelocitySet(stage);

                    var clr   = GetNextColour();
                    var count = 0;
                    foreach (var positions in cartesianVelocitySet.Item2)
                    {
                        count++;

                        if (count % 100 == 0)
                        {
                            using (var packet = cesiumWriter.OpenPacket(output))
                            {
                                using (var point = packet.OpenPointProperty())
                                {
                                    point.WriteColorProperty(Color.Yellow);
                                    point.WritePixelSizeProperty(10.0);
                                }

                                using (var desc = packet.OpenDescriptionProperty())
                                {
                                    desc.WriteString("x,y,z:" + positions.Value.ToString());
                                }
                                using (var position = packet.OpenPositionProperty())
                                {
                                    position.WriteCartesian(positions.Value);
                                }
                            }
                        }
                    }



                    using (var packet = cesiumWriter.OpenPacket(output))
                    {
                        packet.WriteId("RocketLaunch");
                        using (var position = packet.OpenPositionProperty())
                        {
                            position.WriteCartesianVelocity(cartesianVelocitySet.Item1, cartesianVelocitySet.Item2);
                        }
                        using (var description = packet.OpenDescriptionProperty())
                        {
                            description.WriteString("This is the description of this element");
                        }

                        using (var path = packet.OpenPathProperty())
                        {
                            using (var material = path.OpenMaterialProperty())
                            {
                                using (var outline = material.OpenSolidColorProperty())
                                {
                                    using (var colour = outline.OpenColorProperty())
                                    {
                                        colour.WriteRgba(Color.DarkGoldenrod);
                                    }
                                }
                            }
                            path.WriteWidthProperty(8);
                            path.WriteLeadTimeProperty(10);
                            path.WriteTrailTimeProperty(1000);
                            path.WriteResolutionProperty(5);
                        }
                    }
                }

                output.WriteEndSequence();
            }
        }
Exemplo n.º 2
0
        // convert the distance of the downrange into a distance from the launch site, at a specific trajectory



        /// <summary>
        /// This handles the HTTP request by writing some example CZML into the response.
        /// </summary>
        /// <param name="context">The current HttpContext</param>
        public void ProcessRequest(HttpContext context)
        {
            // A more complex example could examine context.Request here for
            // inputs coming from the client-side application.

            // Set the response type for CZML, which is JSON.
            context.Response.ContentType = "application/json";

            // Create an output stream writer for the response.
            using (var outputStream = new StreamWriter(context.Response.OutputStream))
            {
                var cesiumWriter = new CesiumStreamWriter();
                var output       = new CesiumOutputStream(outputStream);

                // Since this is a demo, turning on PrettyFormatting makes the response easier to view
                // with web browser developer tools.  It just adds whitespace and newlines to the response,
                // so production environments would typically leave this turned off.
                output.PrettyFormatting = true;

                // The whole body of CZML must be wrapped in a JSON array, opened here.
                output.WriteStartSequence();

                // The first packet (JSON object) of CZML must be the document packet.
                using (var entity = cesiumWriter.OpenPacket(output))
                {
                    entity.WriteId("document");
                    entity.WriteVersion("1.0");
                }

                using (var entity = cesiumWriter.OpenPacket(output))
                {
                    entity.WriteId("canavitem");
                    using (var pos = entity.OpenPositionProperty())
                    {
                        pos.WriteCartesian(CesiumDataManager.GetBaseCartesian());
                    }
                    using (var point = entity.OpenPointProperty())
                    {
                        point.WriteColorProperty(Color.Aqua);
                        point.WritePixelSizeProperty(10.0);
                    }
                }

                rocketData = new RocketTrajectoryData();

                var entities = rocketData.GetStandardRocketTrajectoryData();


                var cartList = new List <Cartesian>();
                var dateList = new List <JulianDate>();

                var now = DateTime.Now;

                for (int i = 0; i < entities.data[2].x.Count; i++)
                {
                    var cartesian = CesiumDataManager.GenerateCartesian(entities.data[2].x[i], entities.data[2].y[i]);
                    cartList.Add(cartesian);
                    var julDate = new JulianDate(now + TimeSpan.FromSeconds(i * 2));
                    dateList.Add(julDate);
                }

                using (var thisEntity = cesiumWriter.OpenPacket(output))
                {
                    thisEntity.WriteId("testpath");
                    thisEntity.WriteDescriptionProperty("rocket launch path");
                    using (var position = thisEntity.OpenPositionProperty())
                    {
                        position.WriteCartesian(dateList, cartList);
                        position.WriteReferenceFrame("#referenceitem");
                    }

                    //using (var model = thisEntity.OpenModelProperty())
                    //{
                    //    model.WriteGltfProperty(new Uri("http://localhost:56332/Models/CesiumAir/Cesium_Air.gltf"),CesiumResourceBehavior.Embed);
                    //}

                    using (var path = thisEntity.OpenPathProperty())
                    {
                        using (var material = path.OpenMaterialProperty())
                        {
                            using (var outline = material.OpenSolidColorProperty())
                            {
                                using (var colour = outline.OpenColorProperty())
                                {
                                    colour.WriteRgba(Color.DarkSeaGreen);
                                }
                            }
                        }
                        path.WriteWidthProperty(8);
                        path.WriteLeadTimeProperty(10);
                        path.WriteTrailTimeProperty(1000);
                        path.WriteResolutionProperty(5);
                    }
                }



                // Close the JSON array that wraps the entire CZML document.
                output.WriteEndSequence();
            }
        }