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();
}
}
// 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();
}
}