public InstanceObject BlockInstanceToNative(BlockInstance instance)
{
// get the block definition
InstanceDefinition definition = BlockDefinitionToNative(instance.blockDefinition);
// get the transform
if (instance.transform.Length != 16)
{
return(null);
}
Transform transform = new Transform();
int count = 0;
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
if (j == 3 && i != 3) // scale the delta values for translation transformations
{
transform[i, j] = ScaleToNative(instance.transform[count], instance.units);
}
else
{
transform[i, j] = instance.transform[count];
}
count++;
}
}
// create the instance
if (definition == null)
{
return(null);
}
Guid instanceId = Doc.Objects.AddInstanceObject(definition.Index, transform);
if (instanceId == Guid.Empty)
{
return(null);
}
return(Doc.Objects.FindId(instanceId) as InstanceObject);
}
// Rhino convention seems to order the origin of the vector space last instead of first
// This results in a transposed transformation matrix - may need to be addressed later
public BlockInstance BlockInstanceToSpeckle(RH.InstanceObject instance)
{
var t = instance.InstanceXform;
var transformArray = new double[] {
t.M00, t.M01, t.M02, t.M03,
t.M10, t.M11, t.M12, t.M13,
t.M20, t.M21, t.M22, t.M23,
t.M30, t.M31, t.M32, t.M33
};
var def = BlockDefinitionToSpeckle(instance.InstanceDefinition);
var _instance = new BlockInstance()
{
insertionPoint = PointToSpeckle(instance.InsertionPoint),
transform = transformArray,
blockDefinition = def,
units = ModelUnits
};
return(_instance);
}
public Group BlockInstanceToNative(BlockInstance instance, Transform transform = null)
{
// need to combine the two transforms, but i'm stupid and did it wrong so leaving like this for now
if (transform != null)
{
transform *= instance.transform;
}
else
{
transform = instance.transform;
}
// convert definition geometry to native
var breps = new List <Brep>();
var meshes = new List <Mesh>();
var curves = new List <DB.Curve>();
var blocks = new List <BlockInstance>();
foreach (var geometry in instance.blockDefinition.geometry)
{
switch (geometry)
{
case Brep brep:
var success = brep.TransformTo(transform, out var tbrep);
if (success)
{
breps.Add(tbrep);
}
else
{
Report.LogConversionError(new SpeckleException(
$"Could not convert block {instance.id} brep to native, falling back to mesh representation."));
meshes.Add(tbrep.displayMesh);
}
break;
case Mesh mesh:
mesh.TransformTo(transform, out var tmesh);
meshes.Add(tmesh);
break;
case ICurve curve:
try
{
if (curve is ITransformable tCurve)
{
tCurve.TransformTo(transform, out tCurve);
curve = ( ICurve )tCurve;
}
var modelCurves = CurveToNative(curve);
curves.AddRange(modelCurves.Cast <DB.Curve>());
}
catch (Exception e)
{
Report.LogConversionError(
new SpeckleException($"Could not convert block {instance.id} curve to native.", e));
}
break;
case BlockInstance blk:
blocks.Add(blk);
break;
}
}
var ids = new List <ElementId>();
breps.ForEach(o => { ids.Add((DirectShapeToNative(o).NativeObject as DB.DirectShape)?.Id); });
meshes.ForEach(o => { ids.Add((DirectShapeToNative(o).NativeObject as DB.DirectShape)?.Id); });
curves.ForEach(o => { ids.Add(Doc.Create.NewModelCurve(o, NewSketchPlaneFromCurve(o, Doc)).Id); });
blocks.ForEach(o => { ids.Add(BlockInstanceToNative(o, transform).Id); });
var group = Doc.Create.NewGroup(ids);
group.GroupType.Name = $"SpeckleBlock_{instance.blockDefinition.name}_{instance.applicationId ?? instance.id}";
return(group);
}
// Creates a generic model instance in a project or family doc
public string BlockInstanceToNative(BlockInstance instance, Document familyDoc = null)
{
string result = null;
// Base point
var basePoint = PointToNative(instance.insertionPoint);
// Get or make family from block definition
FamilySymbol familySymbol = new FilteredElementCollector(Doc)
.OfClass(typeof(Family))
.OfType <Family>()
.FirstOrDefault(f => f.Name.Equals("SpeckleBlock_" + instance.blockDefinition.name))
?.GetFamilySymbolIds()
.Select(id => Doc.GetElement(id))
.OfType <FamilySymbol>()
.First();
if (familySymbol == null)
{
var familyPath = BlockDefinitionToNative(instance.blockDefinition);
if (familyDoc != null)
{
if (familyDoc.LoadFamily(familyPath, new FamilyLoadOption(), out var fam))
{
;
}
familySymbol = familyDoc.GetElement(fam.GetFamilySymbolIds().First()) as DB.FamilySymbol;
}
else
{
if (Doc.LoadFamily(familyPath, new FamilyLoadOption(), out var fam))
{
familySymbol = Doc.GetElement(fam.GetFamilySymbolIds().First()) as DB.FamilySymbol;
}
}
familySymbol.Activate();
//File.Delete(familyPath);
}
// see if this is a nested family instance or to be inserted in project
FamilyInstance _instance = null;
if (familyDoc != null)
{
_instance = familyDoc.FamilyCreate.NewFamilyInstance(basePoint, familySymbol, DB.Structure.StructuralType.NonStructural);
familyDoc.Regenerate();
}
else
{
_instance = Doc.Create.NewFamilyInstance(basePoint, familySymbol, DB.Structure.StructuralType.NonStructural);
Doc.Regenerate();
}
// transform
if (_instance != null)
{
if (MatrixDecompose(instance.transform, out double rotation))
{
try
{
// some point based families don't have a rotation, so keep this in a try catch
if (rotation != (_instance.Location as LocationPoint).Rotation)
{
var axis = DB.Line.CreateBound(new XYZ(basePoint.X, basePoint.Y, 0), new XYZ(basePoint.X, basePoint.Y, 1000));
(_instance.Location as LocationPoint).Rotate(axis, rotation - (_instance.Location as LocationPoint).Rotation);
}
}
catch { }
}
SetInstanceParameters(_instance, instance);
result = "success";
}
return(result);
}