/// <summary>
/// Finds the nearest point and its normal.
/// </summary>
/// <param name="viewport">
/// The viewport.
/// </param>
/// <param name="position">
/// The position.
/// </param>
/// <param name="point">
/// The point.
/// </param>
/// <param name="normal">
/// The normal.
/// </param>
/// <param name="model">
/// The model.
/// </param>
/// <returns>
/// The find nearest.
/// </returns>
public static bool FindNearest(this Viewport3DX viewport, Point position,
out Point3D point, out Vector3D normal, out Element3D model)
{
point = new Point3D();
normal = new Vector3D();
model = null;
var camera = viewport.Camera as ProjectionCamera;
if (camera == null)
{
return(false);
}
var hits = FindHits(viewport, position);
if (hits.Count > 0)
{
point = hits[0].PointHit.ToPoint3D();
normal = hits[0].NormalAtHit.ToVector3D();
model = hits[0].ModelHit as Element3D;
return(true);
}
else
{
// check for nearest points in the scene
// TODO!!
return(false);
}
}
private void BindPlacement(ObjectPlacement placement, Helix.Element3D model)
{
IMultiValueConverter converter = EulerTransformConverter.Instance;
var rotationPath = nameof(ObjectPlacement.Rotation);
if (placement.PaletteKey == PaletteType.Decal)
{
converter = QuaternionTransformConverter.Instance;
rotationPath = nameof(ObjectPlacement.QRotation);
}
var binding = new MultiBinding {
Converter = converter, Mode = BindingMode.TwoWay
};
binding.Bindings.Add(new Binding(nameof(ObjectPlacement.Position))
{
Mode = BindingMode.TwoWay
});
binding.Bindings.Add(new Binding(rotationPath)
{
Mode = BindingMode.TwoWay
});
binding.Bindings.Add(new Binding(nameof(ObjectPlacement.Scale))
{
Mode = BindingMode.TwoWay
});
model.DataContext = placement;
BindingOperations.SetBinding(model, Helix.Element3D.TransformProperty, binding);
}
/// <summary>
/// Remove object highlight after deselection.
/// </summary>
/// <param name="oldSelection"></param>
private void removeHighlight(Element3D oldSelection)
{
// remove highlight from meshes
MeshGeometryModel3D meshSel = oldSelection as MeshGeometryModel3D;
meshSel.PostEffects = null;
}
public override int GetElementIndex(SceneNodeModel treeNode, Helix.Element3D element)
{
var nodeTag = treeNode.Tag;
if (treeNode.NodeType == NodeType.AiFiringPositions)
{
return((nodeTag as AiZone).FiringPositions.IndexOf(element.DataContext as AiFiringPosition));
}
else if (treeNode.NodeType == NodeType.AiZoneAreas)
{
return((nodeTag as AiZone).Areas.IndexOf(element.DataContext as AiArea));
}
else if (treeNode.NodeType == NodeType.AiStartingLocations)
{
return((nodeTag as AiEncounter).StartingLocations.IndexOf(element.DataContext as AiStartingLocation));
}
else if (treeNode.NodeType == NodeType.AiGroupStartingLocations)
{
return((nodeTag as AiSquad).GroupStartLocations.IndexOf(element.DataContext as AiStartingLocation));
}
else if (treeNode.NodeType == NodeType.AiSoloStartingLocations)
{
return((nodeTag as AiSquad).SoloStartLocations.IndexOf(element.DataContext as AiStartingLocation));
}
else
{
throw new ArgumentException();
}
}
public void SetSelectedElement(Helix.Element3D model)
{
if (model != null && model.IsDescendentOf(manipulator))
{
return;
}
else
{
model = model?.FindInstanceParent();
}
if (model is BoxManipulator3D || model == selector.Target)
{
return;
}
if (model != null)
{
manipulator.CenterOffset = model.GetTotalBounds(true).Center;
manipulator.Visibility = Visibility.Visible;
}
else
{
manipulator.Visibility = Visibility.Collapsed;
}
manipulator.Target = selector.Target = model;
highlighter.Target = null;
GetHost()?.OnElementSelected(model);
}
private void ClearChildren()
{
element = null;
foreach (var element in modelGroup.Children.ToList())
{
modelGroup.Children.Remove(element);
element.Dispose();
}
}
public static Helix.Element3D FindInstanceParent(this Helix.Element3D element)
{
if (element is IMeshNode)
{
return(element);
}
return(element.EnumerateAncestors().Reverse().FirstOrDefault(e => e is IMeshNode));
}
private void BindFiringPosition(AiFiringPosition fpos, Helix.Element3D model)
{
var binding = new Binding(nameof(AiFiringPosition.Position))
{
Converter = TranslationTransformConverter.Instance, Mode = BindingMode.TwoWay
};
model.DataContext = fpos;
BindingOperations.SetBinding(model, Helix.Element3D.TransformProperty, binding);
}
private void SetLod(int index)
{
TreeViewItems.Clear();
ClearChildren();
element = modelFactory.CreateRenderModel(modelId, index);
modelGroup.Children.Add(element);
AddRenderModelNodes(renderModel.Regions, r => r.Permutations);
AddRenderModelNodes(renderModel.InstanceGroups, g => g.Instances);
}
/// <summary>
/// Binds this manipulator to a given Model3D.
/// </summary>
/// <param name="source">
/// Source Visual3D which receives the manipulator transforms.
/// </param>
public void Bind(Element3D source)
{
BindingOperations.SetBinding(this, TargetTransformProperty, new Binding("Transform")
{
Source = source
});
BindingOperations.SetBinding(this, TransformProperty, new Binding("Transform")
{
Source = source
});
}
public void OnElementSelected(Helix.Element3D element)
{
if (element?.DataContext == null)
{
return;
}
var handler = scenario.GetNodeTypeHandler(scenario.SelectedNodeType);
if (handler != null)
{
scenario.SelectedItemIndex = handler.GetElementIndex(scenario.SelectedNode, element);
}
}
public static IEnumerable <Helix.Element3D> EnumerateAncestors(this Helix.Element3D element)
{
while (element.Parent != null)
{
var parent = element.Parent as Helix.Element3D;
if (parent == null)
{
break;
}
yield return(parent);
element = parent;
}
}
public static bool IsDescendentOf(this Helix.Element3D element, Helix.Element3D target)
{
var parent = element.Parent as Helix.Element3D;
if (parent == null)
{
return(false);
}
else if (parent == target)
{
return(true);
}
else
{
return(IsDescendentOf(parent, target));
}
}
/// <summary>
/// Reverts any temporary material previews upon deselection
/// </summary>
private void revertMaterial(Element3D oldSelection)
{
// remove any temp preview colors
Type objectType = oldSelection?.GetType();
if (objectType == typeof(MeshGeometryModel3D))
{
MeshGeometryModel3D meshSel = oldSelection as MeshGeometryModel3D;
if (oldSelection.DataContext.GetType() == typeof(cubeDataModel))
{
// get the pdm
cubeDataModel pdm = oldSelection.DataContext as cubeDataModel;
// reset the color
meshSel.Material = projectMatToHelixMatConverter.Convert(pdm.material) as Material;
}
}
}
public override bool AddPendingItem(Element3D item)
{
if (Enabled && item is GeometryModel3D)
{
var model = item as GeometryModel3D;
model.OnTransformBoundChanged -= GeometryModel3DOctreeManager_OnBoundInitialized;
model.OnTransformBoundChanged += GeometryModel3DOctreeManager_OnBoundInitialized;
if (model.Bounds != ZeroBound)
{
AddItem(model);
}
return(true);
}
else
{
return(false);
}
}
//public void RefreshObject(string paletteKey, ObjectPlacement placement, string fieldId)
//{
// var holder = InstanceHolders[paletteKey];
// var index = holder.Definition.Placements.IndexOf(placement);
// if (fieldId == FieldId.Variant)
// (holder.Elements[index] as ObjectModel3D)?.SetVariant(placement.Variant);
// else if (fieldId == FieldId.PaletteIndex)
// {
// ConfigurePlacement(holder, index);
// var info = holder.GetInfoForIndex(index);
// info.TreeItem.Header = info.Placement.GetDisplayName();
// info.TreeItem.Tag = info.Element;
// var listItem = bspModel.Items.FirstOrDefault(i => i.Tag == info.Placement);
// if (listItem != null)
// listItem.Content = info.TreeItem.Header;
// }
//}
private void BindPlacement(InstancePlacement placement, Helix.Element3D model)
{
var binding = new MultiBinding {
Converter = MatrixTransformConverter.Instance, Mode = BindingMode.TwoWay
};
binding.Bindings.Add(new Binding(nameof(InstancePlacement.TransformScale))
{
Mode = BindingMode.TwoWay
});
binding.Bindings.Add(new Binding(nameof(InstancePlacement.Transform))
{
Mode = BindingMode.TwoWay
});
model.DataContext = placement;
BindingOperations.SetBinding(model, Helix.Element3D.TransformProperty, binding);
}
private void BindStartLocation(AiStartingLocation pos, Helix.Element3D model)
{
var binding = new MultiBinding {
Converter = EulerTransformConverter.Instance, Mode = BindingMode.TwoWay
};
binding.Bindings.Add(new Binding(nameof(AiStartingLocation.Position))
{
Mode = BindingMode.TwoWay
});
binding.Bindings.Add(new Binding(nameof(AiStartingLocation.Rotation))
{
Mode = BindingMode.TwoWay
});
model.DataContext = pos;
BindingOperations.SetBinding(model, Helix.Element3D.TransformProperty, binding);
}
private void AddItem(Element3D item)
{
if (Enabled && item is GeometryModel3D)
{
var tree = mOctree;
UpdateOctree(null);
var model = item as GeometryModel3D;
if (tree == null)
{
RequestRebuild();
}
else
{
bool succeed = true;
int counter = 0;
while (!tree.Add(model))
{
var direction = (model.Bounds.Minimum + model.Bounds.Maximum)
- (tree.Bound.Minimum + tree.Bound.Maximum);
tree = tree.Expand(ref direction) as GeometryModel3DOctree;
++counter;
if (counter > 10)
{
#if DEBUG
throw new Exception("Expand tree failed");
#else
succeed = false;
break;
#endif
}
}
if (succeed)
{
UpdateOctree(tree);
SubscribeBoundChangeEvent(model);
}
else
{
RequestRebuild();
}
}
}
}
public override void RemoveItem(Element3D item)
{
if (Enabled && Octree != null && item is GeometryModel3D)
{
var tree = mOctree;
UpdateOctree(null);
var model = item as GeometryModel3D;
model.OnTransformBoundChanged -= GeometryModel3DOctreeManager_OnBoundInitialized;
UnsubscribeBoundChangeEvent(model);
if (!tree.RemoveByBound(model))
{
Console.WriteLine("Remove failed.");
}
else
{
tree = tree.Shrink() as GeometryModel3DOctree;
}
UpdateOctree(tree);
}
}
public void LoadGeometry(IIndexItem modelTag, string fileName)
{
if (!CanOpenTag(modelTag))
{
throw new NotSupportedException($"{modelTag.ClassName} tags are not supported.");
}
if (DirectContentTags.Any(t => modelTag.ClassCode.ToLower() == t))
{
IRenderGeometry geometry;
if (ContentFactory.TryGetGeometryContent(modelTag, out geometry))
{
LoadGeometry(geometry, fileName);
return;
}
else
{
throw new ArgumentException($"Could not load geometry from tag", nameof(modelTag));
}
}
TabModel.ToolTip = fileName;
TabModel.Header = Utils.GetFileName(fileName);
ClearChildren();
modelId = modelTag.Id;
modelFactory.LoadTag(modelTag, false);
element = modelFactory.CreateObjectModel(modelId);
AvailableLods = objectModel.Variants;
modelGroup.Children.Add(element);
SetVariant(Math.Max(0, AvailableLods.ToList().IndexOf(objectModel.DefaultVariant)));
renderGeometry = null;
IsExportable = false;
}
/// <summary>
/// Finds the nearest point and its normal.
/// </summary>
/// <param name="viewport">
/// The viewport.
/// </param>
/// <param name="position">
/// The position.
/// </param>
/// <param name="point">
/// The point.
/// </param>
/// <param name="normal">
/// The normal.
/// </param>
/// <param name="model">
/// The model.
/// </param>
/// <param name="node"></param>
/// <returns>
/// The find nearest.
/// </returns>
public static bool FindNearest(this Viewport3DX viewport, Point position,
out Point3D point, out Vector3D normal, out Element3D model, out SceneNode node)
{
var succ = viewport.FindNearest(position.ToVector2(), out var p, out var n, out var m);
point = p.ToPoint3D();
normal = n.ToVector3D();
if (m is Element3D ele)
{
model = ele;
node = ele.SceneNode;
}
else if (m is SceneNode nd)
{
node = nd;
model = null;
}
else
{
model = null;
node = null;
}
return(succ);
}
public void OnElementSelected(Helix.Element3D element)
{
bspModel.PropertyView.CurrentItem = element?.DataContext as InstancePlacement;
}
/// <summary>
/// Traverses the Visual3D/Element3D tree and invokes the specified action on each Element3D of the specified type.
/// </summary>
/// <typeparam name="T">
/// The type filter.
/// </typeparam>
/// <param name="element">
/// The element.
/// </param>
/// <param name="action">
/// The action.
/// </param>
public static void Traverse <T>(this Element3D element, Action <T, Transform3D> action) where T : Element3D
{
var sceneNode = new SceneNode[] { element.SceneNode };
Traverse(element, action);
}
public override bool AddPendingItem(Element3D item)
{
throw new NotImplementedException();
}
public override void RemoveItem(Element3D item)
{
throw new NotImplementedException();
}
public abstract bool AddPendingItem(Element3D item);
public override int GetElementIndex(SceneNodeModel treeNode, Helix.Element3D element)
{
return(scenario.StartingPositions.IndexOf(element.DataContext as StartPosition));
}
public abstract void RemoveItem(Element3D item);
/// <summary>
/// Traverses the Visual3D/Element3D tree and invokes the specified action on each Element3D of the specified type.
/// </summary>
/// <typeparam name="T">
/// The type filter.
/// </typeparam>
/// <param name="element">
/// The element.
/// </param>
/// <param name="action">
/// The action.
/// </param>
public static void Traverse <T>(this Element3D element, Action <T, Transform3D> action) where T : Element3D
{
Traverse(element, action);
}
//only called if HandlesNodeType, called when an element is clicked in the viewport
public virtual int GetElementIndex(SceneNodeModel treeNode, Helix.Element3D element)
{
throw new NotImplementedException();
}
