public static void CreateGlbForSimpleBuilding()
{
// arrange
var buildingDelawareWkt = "POLYHEDRALSURFACE Z (((1237196.52254261 -4794569.11324542 4006730.36853675,1237205.09930114 -4794565.00723136 4006732.61840877,1237198.22281801 -4794557.02527831 4006744.21497578,1237196.52254261 -4794569.11324542 4006730.36853675)),((1237198.22281801 -4794557.02527831 4006744.21497578,1237189.64607418 -4794561.13128501 4006741.96510802,1237196.52254261 -4794569.11324542 4006730.36853675,1237198.22281801 -4794557.02527831 4006744.21497578)),((1237199.14544946 -4794579.27792655 4006738.92021596,1237207.72222617 -4794575.17190377 4006741.17009276,1237200.84572844 -4794567.18993371 4006752.76668446,1237199.14544946 -4794579.27792655 4006738.92021596)),((1237200.84572844 -4794567.18993371 4006752.76668446,1237192.26896643 -4794571.29594914 4006750.51681191,1237199.14544946 -4794579.27792655 4006738.92021596,1237200.84572844 -4794567.18993371 4006752.76668446)),((1237205.09930114 -4794565.00723136 4006732.61840877,1237196.52254261 -4794569.11324542 4006730.36853675,1237207.72222617 -4794575.17190377 4006741.17009276,1237205.09930114 -4794565.00723136 4006732.61840877)),((1237207.72222617 -4794575.17190377 4006741.17009276,1237199.14544946 -4794579.27792655 4006738.92021596,1237196.52254261 -4794569.11324542 4006730.36853675,1237207.72222617 -4794575.17190377 4006741.17009276)),((1237196.52254261 -4794569.11324542 4006730.36853675,1237189.64607418 -4794561.13128501 4006741.96510802,1237199.14544946 -4794579.27792655 4006738.92021596,1237196.52254261 -4794569.11324542 4006730.36853675)),((1237199.14544946 -4794579.27792655 4006738.92021596,1237192.26896643 -4794571.29594914 4006750.51681191,1237189.64607418 -4794561.13128501 4006741.96510802,1237199.14544946 -4794579.27792655 4006738.92021596)),((1237189.64607418 -4794561.13128501 4006741.96510802,1237198.22281801 -4794557.02527831 4006744.21497578,1237192.26896643 -4794571.29594914 4006750.51681191,1237189.64607418 -4794561.13128501 4006741.96510802)),((1237192.26896643 -4794571.29594914 4006750.51681191,1237200.84572844 -4794567.18993371 4006752.76668446,1237198.22281801 -4794557.02527831 4006744.21497578,1237192.26896643 -4794571.29594914 4006750.51681191)),((1237198.22281801 -4794557.02527831 4006744.21497578,1237205.09930114 -4794565.00723136 4006732.61840877,1237200.84572844 -4794567.18993371 4006752.76668446,1237198.22281801 -4794557.02527831 4006744.21497578)),((1237200.84572844 -4794567.18993371 4006752.76668446,1237207.72222617 -4794575.17190377 4006741.17009276,1237205.09930114 -4794565.00723136 4006732.61840877,1237200.84572844 -4794567.18993371 4006752.76668446)))";
var colors = new List <string>()
{
"#385E0F", "#385E0F", "#FF0000", "#FF0000", "#EEC900", "#EEC900", "#EEC900", "#EEC900", "#EEC900", "#EEC900", "#EEC900", "#EEC900"
};
var g = Geometry.Deserialize <WktSerializer>(buildingDelawareWkt);
var polyhedralsurface = ((PolyhedralSurface)g);
var center = polyhedralsurface.GetCenter();
var shaderColors = new ShaderColors();
var metallicRoughness = new PbrMetallicRoughnessColors();
metallicRoughness.BaseColors = colors;
var triangles = Triangulator.GetTriangles(polyhedralsurface, 100, shaderColors);
CheckNormal(triangles[2], center);
Assert.IsTrue(triangles.Count == 12);
// act
var bytes = GlbCreator.GetGlb(triangles);
var fileName = Path.Combine(TestContext.CurrentContext.WorkDirectory, "simle_building.glb");
File.WriteAllBytes(fileName, bytes);
// assert
}
public void CreateGlbWithShader()
{
// arrange
var buildingWkb = File.OpenRead(@"testfixtures/ams_building.wkb");
var g = Geometry.Deserialize <WkbSerializer>(buildingWkb);
var polyhedralsurface = ((PolyhedralSurface)g);
var shaderColors = new ShaderColors();
var metallicRoughness = new PbrMetallicRoughnessColors();
metallicRoughness.BaseColors = (from geo in polyhedralsurface.Geometries
let random = new Random()
let color = string.Format("#{0:X6}", random.Next(0x1000000))
select color).ToList();
shaderColors.PbrMetallicRoughnessColors = metallicRoughness;
// act
var triangles = Triangulator.GetTriangles(polyhedralsurface, 100, shaderColors);
var bytes = GlbCreator.GetGlb(triangles);
var fileName = Path.Combine(TestContext.CurrentContext.WorkDirectory, "ams_building_multiple_colors.glb");
File.WriteAllBytes(fileName, bytes);
// assert (each triangle becomes a primitive because colors
var model = ModelRoot.Load(fileName);
Assert.AreEqual(triangles.Count, model.LogicalMeshes[0].Primitives.Count);
}
public void CreateGlbWithDefaultColor()
{
// arrange
var buildingWkb = File.OpenRead(@"testfixtures/ams_building.wkb");
var g = Geometry.Deserialize <WkbSerializer>(buildingWkb);
var polyhedralsurface = ((PolyhedralSurface)g);
var triangles = Triangulator.GetTriangles(polyhedralsurface, new string[0], 100);
var bytes = GlbCreator.GetGlb(triangles);
File.WriteAllBytes(@"d:\aaa\ams_building_default_color.glb", bytes);
}
private static void WriteTiles(NpgsqlConnection conn, string geometryTable, string geometryColumn, string idcolumn, double[] translation, Node node, string outputPath, string colorColumn = "", string attributesColumn = "")
{
if (node.Features.Count > 0)
{
counter++;
var subset = (from f in node.Features select(f.Id)).ToArray();
var geometries = BoundingBoxRepository.GetGeometrySubset(conn, geometryTable, geometryColumn, idcolumn, translation, subset, colorColumn, attributesColumn);
var triangleCollection = GetTriangles(geometries);
var bytes = GlbCreator.GetGlb(triangleCollection);
var b3dm = new B3dm.Tile.B3dm(bytes);
var featureTable = new FeatureTable();
featureTable.BATCH_LENGTH = geometries.Count;
b3dm.FeatureTableJson = JsonConvert.SerializeObject(featureTable);
if (attributesColumn != string.Empty)
{
var batchtable = new BatchTable();
var allattributes = new List <object>();
foreach (var geom in geometries)
{
// only take the first now....
allattributes.Add(geom.Attributes[0]);
}
var item = new BatchTableItem();
item.Name = attributesColumn;
item.Values = allattributes.ToArray();
batchtable.BatchTableItems.Add(item);
var json = JsonConvert.SerializeObject(batchtable, new BatchTableJsonConverter(typeof(BatchTable)));
b3dm.BatchTableJson = json;
}
B3dmWriter.WriteB3dm($"{outputPath}/tiles/{node.Id}.b3dm", b3dm);
}
// and write children too
foreach (var subnode in node.Children)
{
var perc = Math.Round(((double)counter / Counter.Instance.Count) * 100, 2);
Console.Write($"\rProgress: tile {counter} - {perc.ToString("F")}%");
WriteTiles(conn, geometryTable, geometryColumn, idcolumn, translation, subnode, outputPath, colorColumn, attributesColumn);
}
}
public void CreateGlbWithSingleColor()
{
// arrange
var buildingWkb = File.OpenRead(@"testfixtures/ams_building.wkb");
var g = Geometry.Deserialize <WkbSerializer>(buildingWkb);
var polyhedralsurface = ((PolyhedralSurface)g);
var triangles = Triangulator.GetTriangles(polyhedralsurface, 100, null);
// act
var bytes = GlbCreator.GetGlb(triangles);
var fileName = Path.Combine(TestContext.CurrentContext.WorkDirectory, "ams_building_single_color.glb");
File.WriteAllBytes(fileName, bytes);
// assert
var model = ModelRoot.Load(fileName);
Assert.AreEqual(1, model.LogicalMeshes[0].Primitives.Count);
}
public void CreateGlbWithMultipleColors()
{
// arrange
var buildingWkb = File.OpenRead(@"testfixtures/ams_building.wkb");
var g = Geometry.Deserialize <WkbSerializer>(buildingWkb);
var polyhedralsurface = ((PolyhedralSurface)g);
var colors = new List <string>();
foreach (var geo in polyhedralsurface.Geometries)
{
var random = new Random();
var color = String.Format("#{0:X6}", random.Next(0x1000000));
colors.Add(color);
}
var triangles = Triangulator.GetTriangles(polyhedralsurface, colors.ToArray(), 100);
var bytes = GlbCreator.GetGlb(triangles);
File.WriteAllBytes(@"d:\aaa\ams_building_multiple_colors.glb", bytes);
}
private static void WriteTiles(NpgsqlConnection conn, string geometryTable, string geometryColumn, double[] translation, Node node, string outputPath, string colorColumn = "")
{
if (node.Features.Count > 0)
{
counter++;
var subset = (from f in node.Features select(f.Id)).ToArray();
var geometries = BoundingBoxRepository.GetGeometrySubset(conn, geometryTable, geometryColumn, translation, subset, colorColumn);
var triangleCollection = Triangulator.GetTriangles(geometries);
var bytes = GlbCreator.GetGlb(triangleCollection);
var b3dm = new B3dm.Tile.B3dm(bytes);
var featureTable = new FeatureTable();
featureTable.BATCH_LENGTH = geometries.Count;
b3dm.FeatureTableJson = JsonConvert.SerializeObject(featureTable);
var batchTable = new BatchTable();
var r = new Random();
var heights = new List <float>();
for (var i = 0; i < geometries.Count; i++)
{
heights.Add(r.Next(100));
}
batchTable.Height = heights.ToArray();
b3dm.BatchTableJson = JsonConvert.SerializeObject(batchTable);
B3dmWriter.WriteB3dm($"{outputPath}/tiles/{node.Id}.b3dm", b3dm);
}
// and write children too
foreach (var subnode in node.Children)
{
var perc = Math.Round(((double)counter / Counter.Instance.Count) * 100, 2);
Console.Write($"\rProgress: tile {counter} - {perc.ToString("F")}%");
WriteTiles(conn, geometryTable, geometryColumn, translation, subnode, outputPath, colorColumn);
}
}
