private void Combine(CancellationToken cancellationToken, IProgress <ProgressStatus> reporter)
{
SourceContainer.Visible = true;
RemoveAllButSource();
var participants = SourceContainer.VisibleMeshes();
if (participants.Count() < 2)
{
if (participants.Count() == 1)
{
var newMesh = new Object3D();
newMesh.CopyProperties(participants.First(), Object3DPropertyFlags.All);
newMesh.Mesh = participants.First().Mesh;
this.Children.Add(newMesh);
SourceContainer.Visible = false;
}
return;
}
var items = participants.Select(i => (i.Mesh, i.WorldMatrix(SourceContainer)));
var resultsMesh = BooleanProcessing.DoArray(items,
BooleanProcessing.CsgModes.Union,
Processing,
InputResolution,
OutputResolution,
reporter,
cancellationToken);
var resultsItem = new Object3D()
{
Mesh = resultsMesh
};
resultsItem.CopyProperties(participants.First(), Object3DPropertyFlags.All & (~Object3DPropertyFlags.Matrix));
this.Children.Add(resultsItem);
SourceContainer.Visible = false;
}
private void Intersect(CancellationToken cancellationToken, IProgress <ProgressStatus> reporter)
{
SourceContainer.Visible = true;
RemoveAllButSource();
var participants = SourceContainer.VisibleMeshes();
if (participants.Count() < 2)
{
if (participants.Count() == 1)
{
var newMesh = new Object3D();
newMesh.CopyProperties(participants.First(), Object3DPropertyFlags.All);
newMesh.Mesh = participants.First().Mesh;
this.Children.Add(newMesh);
SourceContainer.Visible = false;
}
return;
}
var items = participants.Select(i => (i.Mesh, i.WorldMatrix(SourceContainer)));
#if false
var resultsMesh = BooleanProcessing.DoArray(items,
CsgModes.Intersect,
Processing,
InputResolution,
OutputResolution,
reporter,
cancellationToken);
#else
var totalOperations = items.Count() - 1;
double amountPerOperation = 1.0 / totalOperations;
double ratioCompleted = 0;
var progressStatus = new ProgressStatus();
var resultsMesh = items.First().Item1;
var keepWorldMatrix = items.First().Item2;
bool first = true;
foreach (var next in items)
{
if (first)
{
first = false;
continue;
}
resultsMesh = BooleanProcessing.Do(resultsMesh,
keepWorldMatrix,
// other mesh
next.Item1,
next.Item2,
// operation type
CsgModes.Intersect,
Processing,
InputResolution,
OutputResolution,
// reporting
reporter,
amountPerOperation,
ratioCompleted,
progressStatus,
cancellationToken);
// after the first time we get a result the results mesh is in the right coordinate space
keepWorldMatrix = Matrix4X4.Identity;
// report our progress
ratioCompleted += amountPerOperation;
progressStatus.Progress0To1 = ratioCompleted;
reporter?.Report(progressStatus);
}
#endif
if (resultsMesh != null)
{
var resultsItem = new Object3D()
{
Mesh = resultsMesh
};
resultsItem.CopyProperties(participants.First(), Object3DPropertyFlags.All & (~Object3DPropertyFlags.Matrix));
this.Children.Add(resultsItem);
SourceContainer.Visible = false;
}
}
private void Subtract(CancellationToken cancellationToken, IProgress <ProgressStatus> reporter)
{
SourceContainer.Visible = true;
RemoveAllButSource();
var parentOfSubtractTargets = SourceContainer.DescendantsAndSelfMultipleChildrenFirstOrSelf();
if (parentOfSubtractTargets.Children.Count() < 2)
{
if (parentOfSubtractTargets.Children.Count() == 1)
{
this.Children.Add(SourceContainer.Clone());
SourceContainer.Visible = false;
}
return;
}
CleanUpSelectedChildrenNames(this);
var removeVisibleItems = parentOfSubtractTargets.Children
.Where((i) => SelectedChildren
.Contains(i.ID))
.SelectMany(c => c.VisibleMeshes())
.ToList();
var keepItems = parentOfSubtractTargets.Children
.Where((i) => !SelectedChildren
.Contains(i.ID));
var keepVisibleItems = keepItems.SelectMany(c => c.VisibleMeshes()).ToList();
if (removeVisibleItems.Any() &&
keepVisibleItems.Any())
{
foreach (var keep in keepVisibleItems)
{
#if false
var items = removeVisibleItems.Select(i => (i.Mesh, i.WorldMatrix(SourceContainer))).ToList();
items.Insert(0, (keep.Mesh, keep.Matrix));
var resultsMesh = BooleanProcessing.DoArray(items,
CsgModes.Subtract,
Processing,
InputResolution,
OutputResolution,
reporter,
cancellationToken);
#else
var totalOperations = removeVisibleItems.Count * keepVisibleItems.Count;
double amountPerOperation = 1.0 / totalOperations;
double ratioCompleted = 0;
var progressStatus = new ProgressStatus
{
Status = "Do CSG"
};
var resultsMesh = keep.Mesh;
var keepWorldMatrix = keep.WorldMatrix(SourceContainer);
foreach (var remove in removeVisibleItems)
{
resultsMesh = BooleanProcessing.Do(resultsMesh,
keepWorldMatrix,
// other mesh
remove.Mesh,
remove.WorldMatrix(SourceContainer),
// operation type
CsgModes.Subtract,
Processing,
InputResolution,
OutputResolution,
// reporting
reporter,
amountPerOperation,
ratioCompleted,
progressStatus,
cancellationToken);
// after the first time we get a result the results mesh is in the right coordinate space
keepWorldMatrix = Matrix4X4.Identity;
// report our progress
ratioCompleted += amountPerOperation;
progressStatus.Progress0To1 = ratioCompleted;
reporter?.Report(progressStatus);
}
#endif
// store our results mesh
var resultsItem = new Object3D()
{
Mesh = resultsMesh,
Visible = false,
OwnerID = keep.ID
};
// copy all the properties but the matrix
resultsItem.CopyWorldProperties(keep, SourceContainer, Object3DPropertyFlags.All & (~(Object3DPropertyFlags.Matrix | Object3DPropertyFlags.Visible)));
// and add it to this
this.Children.Add(resultsItem);
if (!RemoveSubtractObjects)
{
this.Children.Modify((list) =>
{
foreach (var item in removeVisibleItems)
{
var newObject = new Object3D()
{
Mesh = item.Mesh
};
newObject.CopyWorldProperties(item, SourceContainer, Object3DPropertyFlags.All & (~Object3DPropertyFlags.Visible));
list.Add(newObject);
}
});
}
}
bool first = true;
foreach (var child in Children)
{
if (first)
{
// hide the source item
child.Visible = false;
first = false;
}
else
{
child.Visible = true;
}
}
}
}
