static void WriteComponentGeometryFragment(JsonTextWriter writer, Geometry geom, string name, DatedElectionResult[] results, DatedTPPResult[] tppResults, int? no = null)
{
if (results.Length == 0)
return;
int number = no.HasValue ? no.Value : 0;
double area = geom.Area();
//To keep the CZML payload to only the main areas (and not islands), don't write CZML packets for
//island parts
if (area < MIN_AREA)
return;
//Debug.WriteLine($"{name}: {number} - {area}");
//if (!_areas.ContainsKey(name))
// _areas[name] = area;
//else
// _areas[name] = Math.Max(_areas[name], area);
// {
writer.WriteStartObject();
{
var ring = geom.GetGeometryRef(0);
var ptCount = ring.GetPointCount();
// "id": "Electorate/<electorate>/<number>"
writer.WritePropertyName("id");
writer.WriteValue($"Electorate/{name}/{number}");
// "name": "<electorate>"
writer.WritePropertyName("name");
writer.WriteValue("Federal Electorate");
// "description": "<electorate>"
writer.WritePropertyName("description");
writer.WriteValue(name);
// "parent": "Electorate/<electorate>"
writer.WritePropertyName("parent");
writer.WriteValue($"Electorate/{name}");
// "polygon": {
writer.WritePropertyName("polygon");
writer.WriteStartObject();
{
// "outline" {
writer.WritePropertyName("outline");
writer.WriteStartObject();
{
writer.WritePropertyName("boolean");
writer.WriteValue(true);
}
writer.WriteEndObject(); // }
// "outlineColor" {
writer.WritePropertyName("outlineColor");
writer.WriteStartObject();
{
// "rgba": [
writer.WritePropertyName("rgba");
writer.WriteStartArray();
{
//Black
writer.WriteValue(0);
writer.WriteValue(0);
writer.WriteValue(0);
writer.WriteValue(255);
}
writer.WriteEndArray(); // ]
}
writer.WriteEndObject(); // }
// "material": {
writer.WritePropertyName("material");
writer.WriteStartObject();
{
// "solidColor": {
writer.WritePropertyName("solidColor");
writer.WriteStartObject();
{
// "color": {
writer.WritePropertyName("color");
writer.WriteStartObject();
{
// "epoch": <start>
writer.WritePropertyName("epoch");
writer.WriteValue(_sceneStart);
// "rgba": [
writer.WritePropertyName("rgba");
writer.WriteStartArray();
{
//HACK: This example doesn't take into account that electorate redistribution occurs
//Meaning that our 2015 snapshot of Australian Federal Electorates may contain electorates
//that either have changed or did not exist in earlier Federal Elections. Since the AEC does
//not publicly provide such data, we'll denote such electorates as unknown (White)
//
//So peek at the first result, if it's dated on our first Federal Election we know the
//electorate existed back then
bool bDidNotExistIn2004 = !(results[0].ElectionDate.Year == _dtStart.Year &&
results[0].ElectionDate.Month == _dtStart.Month &&
results[0].ElectionDate.Day == _dtStart.Day);
if (bDidNotExistIn2004)
{
//0 seconds since epoch
writer.WriteValue(0);
//White
writer.WriteValue(255);
writer.WriteValue(255);
writer.WriteValue(255);
writer.WriteValue(COLOR_ALPHA);
}
else
{
//0 seconds since epoch
writer.WriteValue(0);
int[] color = GetPartyColor(results[0].PartyNm);
foreach (var c in color)
{
writer.WriteValue(c);
}
}
foreach (var result in results.Skip(1))
{
int dt = (int)result.ElectionDate.Subtract(_dtStart).TotalSeconds;
writer.WriteValue(dt);
int[] color = GetPartyColor(result.PartyNm);
foreach (var c in color)
{
writer.WriteValue(c);
}
}
}
writer.WriteEndArray(); // ]
}
writer.WriteEndObject(); // }
}
writer.WriteEndObject(); // }
}
writer.WriteEndObject(); // }
// "extrudedHeight": {
/*
writer.WritePropertyName("extrudedHeight");
writer.WriteStartObject();
{
// "epoch": <start>
writer.WritePropertyName("epoch");
writer.WriteValue(_sceneStart);
// "number": [
writer.WritePropertyName("number");
writer.WriteStartArray();
{
//HACK: This example doesn't take into account that electorate redistribution occurs
//Meaning that our 2015 snapshot of Australian Federal Electorates may contain electorates
//that either have changed or did not exist in earlier Federal Elections. Since the AEC does
//not publicly provide such data, we'll denote such electorates as unknown (White)
//
//So peek at the first result, if it's dated on our first Federal Election we know the
//electorate existed back then
bool bDidNotExistIn2004 = !(tppResults[0].ElectionDate.Year == _dtStart.Year &&
tppResults[0].ElectionDate.Month == _dtStart.Month &&
tppResults[0].ElectionDate.Day == _dtStart.Day);
if (bDidNotExistIn2004)
{
//0 seconds since epoch
writer.WriteValue(0);
//0 height
writer.WriteValue(0);
}
else
{
//0 seconds since epoch
writer.WriteValue(0);
//The winning party's percentage
writer.WriteValue(Math.Max(tppResults[0].LaborPc, tppResults[0].CoalitionPc) * EXTRUSION_MULTIPLIER);
}
foreach (var tppResult in tppResults.Skip(1))
{
int dt = (int)tppResult.ElectionDate.Subtract(_dtStart).TotalSeconds;
writer.WriteValue(dt);
//The winning party's percentage
writer.WriteValue(Math.Max(tppResults[0].LaborPc, tppResults[0].CoalitionPc) * EXTRUSION_MULTIPLIER);
}
}
writer.WriteEndArray(); // ]
}
writer.WriteEndObject(); // }
*/
// "positions": {
writer.WritePropertyName("positions");
writer.WriteStartObject();
{
// "cartographicDegrees": [
writer.WritePropertyName("cartographicDegrees");
writer.WriteStartArray();
{
double[] coords = new double[3];
foreach (int idx in Enumerable.Range(0, ptCount - 1))
{
ring.GetPoint(idx, coords);
foreach (double coord in coords)
{
writer.WriteValue(coord);
}
}
}
writer.WriteEndArray(); // ]
}
writer.WriteEndObject(); // }
}
writer.WriteEndObject(); // }
}
writer.WriteEndObject(); // }
}
static void WritePacket(JsonTextWriter writer, Feature feat, string name, DatedElectionResult[] results, DatedTPPResult[] tppResults)
{
Console.WriteLine($"Writing CZML packets for electorate: {name} ");
writer.WriteStartObject(); // {
{
// "id": "Electorate/<electorate>"
writer.WritePropertyName("id");
writer.WriteValue($"Electorate/{name}");
// "name": "<electorate>"
writer.WritePropertyName("name");
writer.WriteValue(name);
}
writer.WriteEndObject(); // }
var geom = feat.GetGeometryRef();
string geomName = geom.GetGeometryName();
if (geomName == "MULTIPOLYGON")
{
var subGeomCount = geom.GetGeometryCount();
foreach (int idx in Enumerable.Range(0, subGeomCount - 1))
{
var subGeom = geom.GetGeometryRef(idx);
WriteComponentGeometryFragment(writer, subGeom, name, results, tppResults, idx);
Console.Write(".");
}
Console.WriteLine();
}
else if (geomName == "POLYGON")
{
WriteComponentGeometryFragment(writer, geom, name, results, tppResults);
}
}