public Result Execute(UIDocument uidoc)
{
Document doc = uidoc.Document;
View3D view = doc.ActiveView as View3D;
if (view == null)
{
TaskDialog.Show("glTFRevitExport", "You must be in a 3D view to export.");
return(Result.Failed);
}
SaveFileDialog fileDialog = new SaveFileDialog();
fileDialog.FileName = "xv-import"; // default file name
fileDialog.DefaultExt = ".gltf"; // default file extension
bool?dialogResult = fileDialog.ShowDialog();
if (dialogResult == true)
{
filename = fileDialog.FileName;
string directory = Path.GetDirectoryName(filename) + "\\";
glTFContainer glConter = ExportView3D(view, filename, directory);
resultGltf = glConter.glTF;
}
return(Result.Succeeded);
}
public glTFContainer Finish()
{
glTF model = new glTF();
model.asset = new glTFVersion();
model.scenes = scenes;
model.nodes = nodes;
model.meshes = meshes;
model.materials = materials;
model.buffers = buffers;
model.bufferViews = bufferViews;
model.accessors = accessors;
glTFContainer container = new glTFContainer();
container.glTF = model;
container.binaries = binaryFileData;
return(container);
}
/// <summary>
/// Runs once at end of export. Serializes the gltf
/// properties and wites out the *.gltf and *.bin files.
/// </summary>
public void Finish()
{
Debug.WriteLine("Finishing...");
glTFContainer container = manager.Finish();
if (_cfgs.IncludeNonStdElements)
{
// TODO: [RM] Standardize what non glTF spec elements will go into
// this "BIM glTF superset" and write a spec for it. Gridlines below
// are an example.
// Add gridlines as gltf nodes in the format:
// Origin {Vec3<double>}, Direction {Vec3<double>}, Length {double}
FilteredElementCollector col = new FilteredElementCollector(_doc)
.OfClass(typeof(Grid));
var grids = col.ToElements();
foreach (Grid g in grids)
{
Line l = g.Curve as Line;
var origin = l.Origin;
var direction = l.Direction;
var length = l.Length;
var xtras = new glTFExtras();
var grid = new GridParameters();
grid.origin = new List <double>()
{
origin.X, origin.Y, origin.Z
};
grid.direction = new List <double>()
{
direction.X, direction.Y, direction.Z
};
grid.length = length;
xtras.GridParameters = grid;
xtras.UniqueId = g.UniqueId;
xtras.Properties = Util.GetElementProperties(g, true);
var gridNode = new glTFNode();
gridNode.name = g.Name;
gridNode.extras = xtras;
container.glTF.nodes.Add(gridNode);
container.glTF.nodes[0].children.Add(container.glTF.nodes.Count - 1);
}
}
if (_cfgs.SingleBinary)
{
int bytePosition = 0;
int currentBuffer = 0;
foreach (var view in container.glTF.bufferViews)
{
if (view.buffer == 0)
{
bytePosition += view.byteLength;
continue;
}
if (view.buffer != currentBuffer)
{
view.buffer = 0;
view.byteOffset = bytePosition;
bytePosition += view.byteLength;
}
}
glTFBuffer buffer = new glTFBuffer();
buffer.uri = _filename + ".bin";
buffer.byteLength = bytePosition;
container.glTF.buffers.Clear();
container.glTF.buffers.Add(buffer);
using (FileStream f = File.Create(Path.Combine(_directory, buffer.uri)))
{
using (BinaryWriter writer = new BinaryWriter(f))
{
foreach (var bin in container.binaries)
{
foreach (var coord in bin.contents.vertexBuffer)
{
writer.Write((float)coord);
}
// TODO: add writer for normals buffer
foreach (var index in bin.contents.indexBuffer)
{
writer.Write((int)index);
}
}
}
}
}
else
{
// Write the *.bin files
foreach (var bin in container.binaries)
{
using (FileStream f = File.Create(Path.Combine(_directory, bin.name)))
{
using (BinaryWriter writer = new BinaryWriter(f))
{
foreach (var coord in bin.contents.vertexBuffer)
{
writer.Write((float)coord);
}
// TODO: add writer for normals buffer
foreach (var index in bin.contents.indexBuffer)
{
writer.Write((int)index);
}
}
}
}
}
// Write the *.gltf file
string serializedModel = JsonConvert.SerializeObject(container.glTF, new JsonSerializerSettings {
NullValueHandling = NullValueHandling.Ignore
});
File.WriteAllText(Path.Combine(_directory, _filename + ".gltf"), serializedModel);
}
