public void InstancedTexturedTest()
{
// arrange
// source: https://github.com/flywave/go-3dtile/tree/master/data/Textured/instancedTextured.i3dm
var i3dmfile = File.OpenRead(@"testfixtures/instancedTextured.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":1,\"POSITION\":{\"byteOffset\":0}} ");
Assert.IsTrue(i3dm.FeatureTable.InstancesLength == 1);
var stream = new MemoryStream(i3dm.GlbData);
try
{
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
}
catch (SchemaException le)
{
// we expect schemaexception because no support for gltf1'
Assert.IsTrue(le != null);
Assert.IsTrue(le.Message == "Unknown version number: 1");
}
}
public void InstancedBarrelTest()
{
// arrange
// source: https://github.com/PrincessGod/objTo3d-tiles/blob/master/bin/barrel/output/Instancedbarrel/barrel.i3dm
var i3dmfile = File.OpenRead(@"testfixtures/barrel.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.BatchTableJson == "{\"name\":[\"center\",\"right\",\"left\",\"top\",\"bottom\",\"up\",\"right-top\",\"right-bottom\",\"left-top\",\"left-bottom\"],\"id\":[0,1,2,3,4,5,6,7,8,9]} ");
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":10,\"POSITION\":{\"byteOffset\":0},\"BATCH_ID\":{\"byteOffset\":120,\"componentType\":\"UNSIGNED_BYTE\"},\"NORMAL_UP\":{\"byteOffset\":132},\"NORMAL_RIGHT\":{\"byteOffset\":252},\"SCALE_NON_UNIFORM\":{\"byteOffset\":372}} ");
Assert.IsTrue(i3dm.FeatureTable.InstancesLength == 10);
Assert.IsTrue(i3dm.Positions[0].Equals(new Vector3(0, 0, 0)));
Assert.IsTrue(i3dm.Positions[1].Equals(new Vector3(20, 0, 0)));
Assert.IsTrue(i3dm.BatchIdsBytes[0] == 0);
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 496);
var stream = new MemoryStream(i3dm.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
glb.SaveGLB(@"barrel.glb");
}
public void TreeTest()
{
// arrange
var i3dmfile = File.OpenRead(@"testfixtures/tree.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 304);
Assert.IsTrue(i3dm.BatchTableJson == "{\"Height\":[20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20]} ");
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":25,\"EAST_NORTH_UP\":true,\"POSITION\":{\"byteOffset\":0}}");
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 304);
Assert.IsTrue(i3dm.Positions[0].Equals(new Vector3(1214947.2f, -4736379f, 4081540.8f)));
var stream = new MemoryStream(i3dm.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.Asset.Version.Major == 2.0);
Assert.IsTrue(glb.Asset.Generator == "COLLADA2GLTF");
glb.SaveGLB(@"tree.glb");
}
public void CubeTest()
{
// arrange
var i3dmfile = File.OpenRead(@"testfixtures/cube.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
// assert
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 16);
var expectedFeatureTableBinary = new byte[16];
Assert.IsTrue(i3dm.FeatureTableBinary.SequenceEqual(expectedFeatureTableBinary));
Assert.IsTrue(i3dm.FeatureTableJson == "{\"type\":\"Buffer\",\"data\":[123,34,73,78,83,84,65,78,67,69,83,95,76,69,78,71,84,72,34,58,49,44,34,80,79,83,73,84,73,79,78,34,58,123,34,98,121,116,101,79,102,102,115,101,116,34,58,48,125,125,32,32,32,32,32,32]} ");
var stream = new MemoryStream(i3dm.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.Asset.Version.Major == 2.0);
Assert.IsTrue(glb.Asset.Generator == "SharpGLTF 1.0.0");
glb.SaveGLB(@"cube.glb");
}
public void TreeBillboardTest()
{
// arrange
var i3dmfile = File.OpenRead(@"testfixtures/tree_billboard.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 304);
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":25,\"EAST_NORTH_UP\":true,\"POSITION\":{\"byteOffset\":0}}");
Assert.IsTrue(i3dm.BatchTableJson == "{\"Height\":[20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20]} ");
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 304);
var stream = new MemoryStream(i3dm.GlbData);
try
{
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
//Assert.IsTrue(glb.Asset.Version.Major == 2.0);
//Assert.IsTrue(glb.Asset.Generator == "COLLADA2GLTF");
}
catch (LinkException le)
{
// we expect linkexception because SharpGLTF does not support KHR_techniques_webgl'
Assert.IsTrue(le != null);
Assert.IsTrue(le.Message == "ModelRoot Extensions: KHR_techniques_webgl");
}
}
public void GetTileWithRtcCenterTest()
{
// arrange
var instances = new List <Instance>();
var instance = new Instance();
instance.Position = new Wkx.Point(1, 2);
instance.Model = "box.glb";
instances.Add(instance);
var instance1 = new Instance();
instance1.Position = new Wkx.Point(10, 20);
instance1.Model = "box.glb";
instances.Add(instance1);
// act
var tile = TileHandler.GetTile(instances, UseRtcCenter: true);
var i3dm = I3dmReader.Read(new MemoryStream(tile.tile));
// assert
Assert.IsTrue(tile.isI3dm == true);
Assert.IsTrue(tile.tile.Length > 0);
Assert.IsTrue(i3dm.Positions.Count == 2);
Assert.IsTrue(i3dm.Positions[0] == new Vector3(0, 0, 0));
Assert.IsTrue(i3dm.Positions[1] == new Vector3(9, 18, 0));
Assert.IsTrue(i3dm.RtcCenter == new Vector3(1, 2, 0));
}
public void WriteI3dmWithRtcCenterTest()
{
var treeGlb = File.ReadAllBytes(@"testfixtures/tree.glb");
var pos1 = new Vector3(100, 101, 102);
var pos2 = new Vector3(200, 201, 202);
var positions = new List <Vector3>()
{
pos1, pos2
};
var i3dm = new I3dm.Tile.I3dm(positions, treeGlb);
i3dm.RtcCenter = new Vector3(100, 100, 100);
var i3dmBytes = I3dmWriter.Write(i3dm);
var ms = new MemoryStream(i3dmBytes);
var headerValidateErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
var i3dmActual = I3dmReader.Read(ms);
Assert.IsTrue(i3dmActual.RtcCenter.Equals(i3dm.RtcCenter));
}
public void GetTileWithScaleNonUniformTest()
{
// arrange
var scaleNonuniform = new double[3] {
1, 2, 3
};
var instances = new List <Instance>();
var instance = new Instance();
instance.Position = new Wkx.Point(1, 2);
instance.ScaleNonUniform = scaleNonuniform;
instance.Model = "box.glb";
instances.Add(instance);
// act
var tile = TileHandler.GetTile(instances, UseScaleNonUniform: true);
var i3dm = I3dmReader.Read(new MemoryStream(tile.tile));
// assert
Assert.IsTrue(tile.isI3dm == true);
Assert.IsTrue(tile.tile.Length > 0);
Assert.IsTrue(i3dm.Positions.Count == 1);
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.ScaleNonUniforms[0] == new Vector3((float)scaleNonuniform[0], (float)scaleNonuniform[1], (float)scaleNonuniform[2]));
}
public void WriteBarrelI3dmWithBatchIdShortTest()
{
// arrange
var originalFile = @"testfixtures/barrel.i3dm";
var i3dmOriginalfile = File.OpenRead(originalFile);
var i3dmOriginal = I3dmReader.Read(i3dmOriginalfile);
Assert.IsTrue(i3dmOriginal.I3dmHeader.FeatureTableBinaryByteLength == 496);
Assert.IsTrue(i3dmOriginal.FeatureTable.BatchIdOffset.componentType == "UNSIGNED_BYTE");
i3dmOriginal.FeatureTable.BatchIdOffset.componentType = "UNSIGNED_SHORT";
var result = @"barrel_actual_short.i3dm";
I3dmWriter.Write(result, i3dmOriginal);
var headerValidateErrors = i3dmOriginal.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
// assert
var i3dmActualfile = File.OpenRead(result);
var i3dmActualShort = I3dmReader.Read(i3dmActualfile);
i3dmActualShort.FeatureTable.BatchIdOffset.componentType = "UNSIGNED_SHORT";
}
public void WriteI3dmWithRtcCenterTest()
{
var treeGlb = File.ReadAllBytes(@"testfixtures/tree.glb");
var pos1 = new Vector3(100, 101, 102);
var pos2 = new Vector3(200, 201, 202);
var positions = new List <Vector3>()
{
pos1, pos2
};
var i3dm = new I3dm.Tile.I3dm(positions, treeGlb);
i3dm.RtcCenter = new Vector3(100, 100, 100);
var result = @"tree_invalid.i3dm";
I3dmWriter.Write(result, i3dm);
var headerValidateErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
var i3dmActualfile = File.OpenRead(result);
var i3dmActual = I3dmReader.Read(i3dmActualfile);
Assert.IsTrue(i3dmActual.RtcCenter.Equals(i3dm.RtcCenter));
}
public void WriteBarrelI3dmTest()
{
// arrange
var i3dmExpectedfile = File.OpenRead(@"testfixtures/barrel.i3dm");
var i3dmExpected = I3dmReader.Read(i3dmExpectedfile);
var positions = i3dmExpected.Positions;
Assert.IsTrue(positions.Count == 10);
Assert.IsTrue(i3dmExpected.FeatureTableJson == "{\"INSTANCES_LENGTH\":10,\"POSITION\":{\"byteOffset\":0},\"BATCH_ID\":{\"byteOffset\":120,\"componentType\":\"UNSIGNED_BYTE\"},\"NORMAL_UP\":{\"byteOffset\":132},\"NORMAL_RIGHT\":{\"byteOffset\":252},\"SCALE_NON_UNIFORM\":{\"byteOffset\":372}} ");
var result = @"testfixtures/barrel_actual.i3dm";
I3dmWriter.Write(result, i3dmExpected);
var i3dmActualStream = File.OpenRead(@"testfixtures/barrel_actual.i3dm");
var i3dmActual = I3dmReader.Read(i3dmActualStream);
// Assert.IsTrue(i3dmExpected.Equals(i3dmActual));
Assert.IsTrue(i3dmActual.Positions.Count == 10);
Assert.IsTrue(i3dmActual.FeatureTable.IsEastNorthUp == false);
Assert.IsTrue(i3dmActual.Positions[0].Equals(i3dmExpected.Positions[0]));
var stream = new MemoryStream(i3dmActual.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.Asset.Version.Major == 2.0);
Assert.IsTrue(glb.Asset.Generator == "obj2gltf");
}
public void WriteI3dmHelloWorld()
{
var treeGlb = File.ReadAllBytes(@"testfixtures/tree.glb");
var pos1 = new Vector3(100, 101, 102);
var pos2 = new Vector3(200, 201, 202);
var positions = new List <Vector3>()
{
pos1, pos2
};
var batchIds = new List <int>()
{
9, 11
};
var i3dm = new I3dm.Tile.I3dm(positions, treeGlb);
var result = @"tree_basic.i3dm";
i3dm.BatchIds = batchIds;
I3dmWriter.Write(result, i3dm);
var headerValidateErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
var i3dmActualfile = File.OpenRead(result);
var i3dmActual = I3dmReader.Read(i3dmActualfile);
Assert.IsTrue(i3dmActual.Positions.Count == 2);
Assert.IsTrue(i3dmActual.Positions[0].Equals(pos1));
Assert.IsTrue(i3dmActual.Positions[1].Equals(pos2));
Assert.IsTrue(i3dmActual.BatchIds.Count == 2);
Assert.IsTrue(i3dmActual.BatchIds[0] == 9);
Assert.IsTrue(i3dmActual.BatchIds[1] == 11);
Assert.IsTrue(i3dmActual.FeatureTable.BatchIdOffset.componentType == "UNSIGNED_SHORT");
}
public void ReadFirstCompositeTest()
{
// arrange
// source: https://github.com/CesiumGS/cesium/tree/master/Specs/Data/Cesium3DTiles/Composite/Composite
var cmptfile = File.OpenRead(@"testfixtures/composite.cmpt");
Assert.IsTrue(cmptfile != null);
// act. This cmpt contains a batched model and an instanced model
var cmpt = CmptReader.Read(cmptfile);
// assert
Assert.IsTrue(cmpt != null);
Assert.IsTrue(cmpt.CmptHeader.Magic == expectedMagicHeader);
Assert.IsTrue(cmpt.CmptHeader.Version == expectedVersionHeader);
Assert.IsTrue(cmpt.CmptHeader.ByteLength == 13472); // The length of the entire Composite tile, including this header and each inner tile, in bytes.
Assert.IsTrue(cmpt.CmptHeader.TilesLength == 2);
Assert.IsTrue(cmpt.Tiles.Count() == 2);
Assert.IsTrue(cmpt.Magics.ToArray()[0] == "b3dm");
Assert.IsTrue(cmpt.Magics.ToArray()[1] == "i3dm");
var b3dm = B3dmReader.ReadB3dm(new MemoryStream(cmpt.Tiles.ToArray()[0]));
Assert.IsTrue(b3dm.FeatureTableJson == "{\"BATCH_LENGTH\":10,\"RTC_CENTER\":[1215012.8988049095,-4736313.0423059845,4081604.3368623317]}");
Assert.IsTrue(b3dm.GlbData != null);
var i3dm = I3dmReader.Read(new MemoryStream(cmpt.Tiles.ToArray()[1]));
Assert.IsTrue(i3dm.Positions.Count == 25);
}
public void ReadInstancedRTCTest()
{
// arrange
var i3dmfile = File.OpenRead(@"testfixtures/instancedRTC.i3dm");
Assert.IsTrue(i3dmfile != null);
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsNotNull(i3dm);
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":25,\"RTC_CENTER\":[1215013.8340490046,-4736316.75897742,4081608.4380407534],\"EAST_NORTH_UP\":true,\"POSITION\":{\"byteOffset\":0}} ");
Assert.IsTrue(i3dm.Positions[0] == new Vector3(-64.70168f, -69.73304f, -61.245365f));
}
public void ReadInvalidI3dmTest()
{
// arrange
var i3dmfile = File.OpenRead(@"testfixtures/tree_invalid.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
// assert
var validationErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(validationErrors.Count == 3);
}
public void I3dmComparerTests()
{
var i3dmfile = File.OpenRead(@"testfixtures/tree.i3dm");
var treeI3dm = I3dmReader.Read(i3dmfile);
var i3dmAfterfile = File.OpenRead(@"testfixtures/tree.i3dm");
var treeI3dmAfter = I3dmReader.Read(i3dmAfterfile);
Assert.IsTrue(treeI3dm.FeatureTableBinary.Length == treeI3dmAfter.FeatureTableBinary.Length);
for (var i = 0; i < treeI3dmAfter.FeatureTableBinary.Length; i++)
{
Assert.IsTrue(treeI3dm.FeatureTableBinary[i] == treeI3dmAfter.FeatureTableBinary[i]);
}
}
public void GetCompositeTileTest()
{
// arrange
var instances = new List <Instance>();
var instance = new Instance();
instance.Position = new Wkx.Point(1, 2);
instance.Scale = 1;
instance.Model = "box.glb";
instances.Add(instance);
var instance2 = new Instance();
instance2.Position = new Wkx.Point(3, 4);
instance2.Scale = 1;
instance2.Model = "box1.glb";
instances.Add(instance2);
var instance3 = new Instance();
instance3.Position = new Wkx.Point(5, 6);
instance3.Scale = 1;
instance3.Model = "box1.glb";
instances.Add(instance3);
// act
var tile = TileHandler.GetTile(instances, UseExternalModel: true);
Assert.IsTrue(tile.isI3dm == false);
var cmpt = CmptReader.Read(new MemoryStream(tile.tile));
// assert
Assert.IsTrue(cmpt.Tiles.Count == 2);
var i3dm0 = I3dmReader.Read(new MemoryStream(cmpt.Tiles[0]));
Assert.IsTrue(i3dm0.Positions.Count == 1);
Assert.IsTrue(i3dm0.GlbUrl == "box.glb");
Assert.IsTrue(i3dm0.Positions[0] == new Vector3(1, 2, 0));
var i3dm1 = I3dmReader.Read(new MemoryStream(cmpt.Tiles[1]));
Assert.IsTrue(i3dm1.Positions.Count == 2);
Assert.IsTrue(i3dm1.GlbUrl == "box1.glb");
Assert.IsTrue(i3dm1.Positions[0] == new Vector3(3, 4, 0));
Assert.IsTrue(i3dm1.Positions[1] == new Vector3(5, 6, 0));
}
public void ReadCompositeOfInstancedTest()
{
// source: https://github.com/CesiumGS/cesium/blob/master/Specs/Data/Cesium3DTiles/Composite/CompositeOfInstanced/
var cmptfile = File.OpenRead(@"testfixtures/compositeOfInstanced.cmpt");
Assert.IsTrue(cmptfile != null);
var cmpt = CmptReader.Read(cmptfile);
Assert.IsTrue(cmpt != null);
Assert.IsTrue(cmpt.CmptHeader.Magic == expectedMagicHeader);
Assert.IsTrue(cmpt.CmptHeader.Version == expectedVersionHeader);
Assert.IsTrue(cmpt.CmptHeader.TilesLength == 2);
var i3dm = I3dmReader.Read(new MemoryStream(cmpt.Tiles.First()));
Assert.IsTrue(i3dm.Positions.Count == 25);
}
public void WriteI3dmHelloWorldWithBatchIdType()
{
var treeGlb = File.ReadAllBytes(@"testfixtures/tree.glb");
var pos1 = new Vector3(100, 101, 102);
var pos2 = new Vector3(200, 201, 202);
var positions = new List <Vector3>()
{
pos1, pos2
};
var batchIds = new List <int>()
{
9, 11
};
var i3dm = new I3dm.Tile.I3dm(positions, treeGlb);
var types = new List <string> {
"UNSIGNED_BYTE", "UNSIGNED_SHORT", "UNSIGNED_INT"
};
// write i3dm with every type for batch_id
foreach (var type in types)
{
var result = $"tree_batchid_{type}.i3dm";
i3dm.BatchIds = batchIds;
I3dmWriter.Write(result, i3dm, type);
var headerValidateErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
var i3dmActualfile = File.OpenRead(result);
var i3dmActual = I3dmReader.Read(i3dmActualfile);
Assert.IsTrue(i3dmActual.Positions.Count == 2);
Assert.IsTrue(i3dmActual.Positions[0].Equals(pos1));
Assert.IsTrue(i3dmActual.Positions[1].Equals(pos2));
Assert.IsTrue(i3dmActual.BatchIds.Count == 2);
Assert.IsTrue(i3dmActual.BatchIds[0] == 9);
Assert.IsTrue(i3dmActual.BatchIds[1] == 11);
Assert.IsTrue(i3dmActual.FeatureTable.BatchIdOffset.componentType == type);
var stream = new MemoryStream(i3dmActual.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.Asset.Version.Major == 2.0);
}
}
public void WriteToBytesTest()
{
// arrange
var i3dm = GetTestI3dm(treeUrlGlb);
// act
var bytes = I3dmWriter.Write(i3dm);
// assert
Assert.IsTrue(bytes.Length > 0);
// and try to recreate i3dm
var stream = new MemoryStream(bytes);
var i3dmRound = I3dmReader.Read(stream);
// assert again
Assert.IsTrue(i3dmRound.Positions.Count == 2);
Assert.IsTrue(i3dmRound.GlbUrl == treeUrlGlb);
}
public void WriteI3dmHelloWorldWithScales()
{
// arrange
var treeGlb = File.ReadAllBytes(@"testfixtures/tree.glb");
var pos1 = new Vector3(100, 101, 102);
var pos2 = new Vector3(200, 201, 202);
var positions = new List <Vector3>()
{
pos1, pos2
};
var scales = new List <float> {
2, 3
};
var batchIds = new List <int>()
{
9, 11
};
var i3dm = new I3dm.Tile.I3dm(positions, treeGlb);
i3dm.BatchIds = batchIds;
i3dm.Scales = scales;
// act
var bytes = I3dmWriter.Write(i3dm);
// assert
var headerValidateErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
var i3dmActual = I3dmReader.Read(new MemoryStream(bytes));
Assert.IsTrue(i3dmActual.Positions.Count == 2);
Assert.IsTrue(i3dmActual.Positions[0].Equals(pos1));
Assert.IsTrue(i3dmActual.Positions[1].Equals(pos2));
Assert.IsTrue(i3dmActual.BatchIds.Count == 2);
Assert.IsTrue(i3dmActual.BatchIds[0] == 9);
Assert.IsTrue(i3dmActual.BatchIds[1] == 11);
Assert.IsTrue(i3dmActual.FeatureTable.BatchIdOffset.componentType == "UNSIGNED_SHORT");
Assert.IsTrue(i3dmActual.Scales[0] == 2);
Assert.IsTrue(i3dmActual.Scales[1] == 3);
}
public void WriteTreeI3dmTest()
{
// arrange
var i3dmExpectedfile = File.OpenRead(@"testfixtures/tree.i3dm");
var i3dmExpected = I3dmReader.Read(i3dmExpectedfile);
var positions = i3dmExpected.Positions;
Assert.IsTrue(positions.Count == 25);
var treeGlb = File.ReadAllBytes(@"testfixtures/tree.glb");
var i3dm = new I3dm.Tile.I3dm(positions, treeGlb);
i3dm.FeatureTable.IsEastNorthUp = true;
i3dm.BatchTableJson = @"{""Height"":[20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20]} ";
// act
var result = @"testfixtures/tree_actual.i3dm";
I3dmWriter.Write(result, i3dm);
var i3dmActualStream = File.OpenRead(@"testfixtures/tree_actual.i3dm");
var i3dmActual = I3dmReader.Read(i3dmActualStream);
// Assert
Assert.IsTrue(i3dmActual.I3dmHeader.Version == 1);
Assert.IsTrue(i3dmActual.I3dmHeader.Magic == "i3dm");
Assert.IsTrue(i3dmActual.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dmActual.I3dmHeader.BatchTableJsonByteLength == 88);
Assert.IsTrue(i3dmActual.I3dmHeader.FeatureTableJsonByteLength == 72); //
Assert.IsTrue(i3dmActual.I3dmHeader.FeatureTableBinaryByteLength == 25 * 4 * 3); // note: is 304 in original file?
Assert.IsTrue(i3dmActual.I3dmHeader.ByteLength == 282064); // Note is: 282072 originally)
Assert.IsTrue(i3dmActual.I3dmHeader.BatchTableBinaryByteLength == 0);
Assert.IsTrue(i3dmActual.Positions.Count == 25);
Assert.IsTrue(i3dmActual.FeatureTable.IsEastNorthUp == true);
Assert.IsTrue(i3dmActual.Positions[0].Equals(new Vector3(1214947.2f, -4736379f, 4081540.8f)));
var stream = new MemoryStream(i3dmActual.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.Asset.Version.Major == 2.0);
Assert.IsTrue(glb.Asset.Generator == "COLLADA2GLTF");
}
public void WriteI3dmWithExternalGltfTest()
{
// arrange
var i3dm = GetTestI3dm(treeUrlGlb);
i3dm.RtcCenter = new Vector3(100, 100, 100);
// act
var bytes = I3dmWriter.Write(i3dm);
// assert
var headerValidateErrors = i3dm.I3dmHeader.Validate();
Assert.IsTrue(headerValidateErrors.Count == 0);
var i3dmActual = I3dmReader.Read(new MemoryStream(bytes));
Assert.IsTrue(i3dmActual.GlbUrl == treeUrlGlb);
Assert.IsTrue(i3dmActual.RtcCenter.Equals(i3dm.RtcCenter));
}
public void WriteBarrelI3dmTest()
{
// arrange
var i3dmExpectedfile = File.OpenRead(@"testfixtures/barrel.i3dm");
var i3dmExpected = I3dmReader.Read(i3dmExpectedfile);
var positions = i3dmExpected.Positions;
Assert.IsTrue(positions.Count == 10);
Assert.IsTrue(i3dmExpected.FeatureTableJson == "{\"INSTANCES_LENGTH\":10,\"POSITION\":{\"byteOffset\":0},\"BATCH_ID\":{\"byteOffset\":120,\"componentType\":\"UNSIGNED_BYTE\"},\"NORMAL_UP\":{\"byteOffset\":132},\"NORMAL_RIGHT\":{\"byteOffset\":252},\"SCALE_NON_UNIFORM\":{\"byteOffset\":372}} ");
var barrelGlb = File.ReadAllBytes(@"testfixtures/barrel.glb");
var i3dm = new I3dm.Tile.I3dm(positions, barrelGlb);
i3dm.NormalUps = i3dmExpected.NormalUps;
i3dm.NormalRights = i3dmExpected.NormalRights;
i3dm.ScaleNonUniforms = i3dmExpected.ScaleNonUniforms;
i3dm.BatchIdsBytes = i3dmExpected.BatchIdsBytes;
i3dm.BatchTableJson = @"{""Height"":[20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20]} ";
var result = @"testfixtures/barrel_actual.i3dm";
I3dmWriter.Write(result, i3dm);
var i3dmActualStream = File.OpenRead(@"testfixtures/barrel_actual.i3dm");
var i3dmActual = I3dmReader.Read(i3dmActualStream);
Assert.IsTrue(i3dmActual.I3dmHeader.Version == 1);
Assert.IsTrue(i3dmActual.I3dmHeader.Magic == "i3dm");
Assert.IsTrue(i3dmActual.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dmActual.I3dmHeader.BatchTableJsonByteLength == 88);
Assert.IsTrue(i3dmActual.I3dmHeader.FeatureTableBinaryByteLength == 10 * 4 * 3 * 4 + 10); // note: is 304 in original file?
Assert.IsTrue(i3dmActual.I3dmHeader.BatchTableBinaryByteLength == 0);
Assert.IsTrue(i3dmActual.Positions.Count == 10);
Assert.IsTrue(i3dmActual.FeatureTable.IsEastNorthUp == false);
Assert.IsTrue(i3dmActual.Positions[0].Equals(i3dmExpected.Positions[0]));
var stream = new MemoryStream(i3dmActual.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.Asset.Version.Major == 2.0);
Assert.IsTrue(glb.Asset.Generator == "obj2gltf");
}
public void GetTileTest()
{
// arrange
var instances = new List <Instance>();
var instance = new Instance();
instance.Position = new Wkx.Point(1, 2);
instance.Scale = 1;
instance.Model = "box.glb";
instances.Add(instance);
// act
var tile = TileHandler.GetTile(instances);
var i3dm = I3dmReader.Read(new MemoryStream(tile.tile));
// assert
Assert.IsTrue(tile.isI3dm == true);
Assert.IsTrue(tile.tile.Length > 0);
Assert.IsTrue(i3dm.Positions.Count == 1);
Assert.IsTrue(i3dm.Positions[0] == new System.Numerics.Vector3(1, 2, 0));
}
public void GetTileWithExternalModelTest()
{
// arrange
var instances = new List <Instance>();
var instance = new Instance();
instance.Position = new Wkx.Point(1, 2);
instance.Model = "box.glb";
instances.Add(instance);
// act
var tile = TileHandler.GetTile(instances, UseExternalModel: true);
var i3dm = I3dmReader.Read(new MemoryStream(tile.tile));
// assert
Assert.IsTrue(tile.isI3dm == true);
Assert.IsTrue(tile.tile.Length > 0);
Assert.IsTrue(i3dm.Positions.Count == 1);
Assert.IsTrue(i3dm.GlbUrl == "box.glb");
Assert.IsTrue(i3dm.GlbData == null);
}
public void GetTileWithTagsTest()
{
// arrange
var instances = new List <Instance>();
var instance = new Instance();
instance.Position = new Wkx.Point(1, 2);
instance.Model = "box.glb";
var tags = JArray.Parse("[{'id':123},{'name': 'test'}]");
instance.Tags = tags;
instances.Add(instance);
// act
var tile = TileHandler.GetTile(instances);
var i3dm = I3dmReader.Read(new MemoryStream(tile.tile));
// assert
Assert.IsTrue(tile.isI3dm == true);
Assert.IsTrue(i3dm.Positions.Count == 1);
Assert.IsTrue(i3dm.BatchTableJson == "{\"id\":[\"123\"],\"name\":[\"test\"]} ");
}
public void InstancedAnimatedTest()
{
// arrange
var i3dmfile = File.OpenRead(@"testfixtures/instancedAnimated.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":25,\"EAST_NORTH_UP\":true,\"POSITION\":{\"byteOffset\":0}}");
Assert.IsTrue(i3dm.FeatureTable.InstancesLength == 25);
var stream = new MemoryStream(i3dm.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
Assert.IsTrue(glb.LogicalAnimations.Count == 1);
Assert.IsTrue(glb.LogicalAnimations[0].Name == "Object_0Action");
}
public void InstancedWithBatchTableTest()
{
// arrange
// source: http://vcities.umsl.edu/Cesium1.54/Apps/SampleData/Cesium3DTiles/Instanced/InstancedWithBatchTable/
var i3dmfile = File.OpenRead(@"testfixtures/instancedWithBatchTable.i3dm");
Assert.IsTrue(i3dmfile != null);
// act
var i3dm = I3dmReader.Read(i3dmfile);
Assert.IsTrue(expectedMagicHeader == i3dm.I3dmHeader.Magic);
Assert.IsTrue(expectedVersionHeader == i3dm.I3dmHeader.Version);
Assert.IsTrue(i3dm.I3dmHeader.GltfFormat == 1);
Assert.IsTrue(i3dm.BatchTableJson.Length >= 0);
Assert.IsTrue(i3dm.BatchTableJson == "{\"Height\":[20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20,20]} ");
Assert.IsTrue(i3dm.GlbData.Length > 0);
Assert.IsTrue(i3dm.FeatureTableJson == "{\"INSTANCES_LENGTH\":25,\"EAST_NORTH_UP\":true,\"POSITION\":{\"byteOffset\":0}}");
Assert.IsTrue(i3dm.FeatureTableBinary.Length == 304);
var stream = new MemoryStream(i3dm.GlbData);
var glb = SharpGLTF.Schema2.ModelRoot.ReadGLB(stream);
glb.SaveGLB(@"instancedwithbatchtable.glb");
}
static void Unpack(UnpackOptions o)
{
Console.WriteLine($"Action: Unpack");
Console.WriteLine($"Input: {o.Input}");
var f = File.OpenRead(o.Input);
var i3dm = I3dmReader.Read(f);
Console.WriteLine("i3dm version: " + i3dm.I3dmHeader.Version);
var glbfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".glb" : o.Output);
var batchfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".batch.csv" : o.Output);
var featurefile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".feature.csv" : o.Output);
var positionsfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".positions.csv" : o.Output);
var normal_upsfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".normal_ups.csv" : o.Output);
var normal_rightsfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".normal_rights.csv" : o.Output);
var scale_non_uniformsfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".scale_non_uniforms.csv" : o.Output);
var scalesfile = (o.Output == string.Empty ? Path.GetFileNameWithoutExtension(o.Input) + ".scales.csv" : o.Output);
if (File.Exists(glbfile) && !o.Force)
{
Console.WriteLine($"File {glbfile} already exists. Specify -f or --force to overwrite existing files.");
}
else
{
if (i3dm.I3dmHeader.GltfFormat == 0)
{
// todo: write to file or something?
Console.WriteLine("external glTF uri:" + i3dm.GlbUrl);
}
else
{
File.WriteAllBytes(glbfile, i3dm.GlbData);
}
Console.WriteLine($"Glb created: {glbfile}");
SaveItems(i3dm.Positions, positionsfile);
Console.WriteLine($"Positions file created: {positionsfile}");
if (i3dm.NormalUps != null)
{
SaveItems(i3dm.NormalUps, normal_upsfile);
Console.WriteLine($"normalups file created: {normal_upsfile}");
}
if (i3dm.NormalRights != null)
{
SaveItems(i3dm.NormalRights, normal_rightsfile);
Console.WriteLine($"normalrights file created: {normal_rightsfile}");
}
if (i3dm.ScaleNonUniforms != null)
{
SaveItems(i3dm.ScaleNonUniforms, scale_non_uniformsfile);
Console.WriteLine($"scale_non_uniforms file created: {scale_non_uniformsfile}");
}
if (i3dm.Scales != null)
{
SaveItems(i3dm.Scales, scalesfile);;
Console.WriteLine($"scales file created: {scalesfile}");
}
if (i3dm.BatchTableJson != String.Empty)
{
File.WriteAllText(batchfile, i3dm.BatchTableJson);
Console.WriteLine($"batch file created: {batchfile}");
}
if (i3dm.FeatureTableJson != String.Empty)
{
File.WriteAllText(featurefile, i3dm.FeatureTableJson);
Console.WriteLine($"feature file created: {featurefile}");
}
}
}
