Writing Custom CZML

Program.cs

using System;
using System.Collections.Generic;
using CesiumLanguageWriter;

namespace CustomCzml
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            var cesiumOutputStream = new CesiumOutputStream(Console.Out)
                                     {
                                         PrettyFormatting = true
                                     };

            // A CZML file contains an array of objects which the following starts.
            cesiumOutputStream.WriteStartSequence();

            var cesiumStreamWriter = new CesiumStreamWriter();

            // Create the document packet
            using (var packetWriter = cesiumStreamWriter.OpenPacket(cesiumOutputStream))
            {
                packetWriter.WriteId("document");
                packetWriter.WriteVersion("1.0");
            }

            // Create packet for an object
            using (var packetWriter = cesiumStreamWriter.OpenPacket(cesiumOutputStream))
            {
                packetWriter.WriteId("1");
                packetWriter.WriteName("Name");

                // Add position to object's packet
                using (var positionWriter = packetWriter.OpenPositionProperty())
                {
                    positionWriter.WriteCartographicDegrees(new Cartographic(-75.5966, 40.0386, 0.0));
                }

                // Add label to object's packet
                using (var labelWriter = packetWriter.OpenLabelProperty())
                {
                    labelWriter.WriteTextProperty("Exton");
                }

                // Custom constant string property
                using (var customWriter = new StringCesiumWriter("stringProperty"))
                {
                    customWriter.Open(cesiumOutputStream);
                    customWriter.WriteString("Some Value");
                }

                // Custom sampled double property
                using (var customWriter = new DoubleCesiumWriter("doubleProperty"))
                {
                    customWriter.Open(cesiumOutputStream);

                    var dates = new List<JulianDate>
                                {
                                    new JulianDate(new GregorianDate(2015, 10, 30, 12, 0, 0)),
                                    new JulianDate(new GregorianDate(2015, 10, 30, 23, 0, 0))
                                };
                    var values = new List<double>
                                 {
                                     1,
                                     100
                                 };
                    customWriter.WriteNumber(dates, values, 0, 2);
                }
            }

            // end the array
            cesiumOutputStream.WriteEndSequence();
        }
    }
}