protected bool GetInsertionPosition(out Vec3F result, Point clientPt)
{
var ray = GetWorldRay(clientPt);
var pick = Picking.RayPick(
GameEngine.GetEngineDevice(), Adapter.SceneManager, Adapter.TechniqueContext,
ray, Utils.AsCameraDesc(Camera), ClientSize, Picking.Flags.Terrain);
if (pick != null && pick.Length > 0)
{
result = pick[0].hitPt;
return(true);
}
// If the ray is off the terrain, find the intersection of the ray with Z=0 plane.
float distance = ray.Origin.Z / -ray.Direction.Z;
if (distance > 0.0f)
{
result = ray.Origin + distance * ray.Direction;
return(true);
}
result = new Vec3F(0.0f, 0.0f, 0.0f);
return(false);
}
protected bool GetTerrainCollision(out Vec3F result, Point clientPt)
{
var pick = Picking.RayPick(
GameEngine.GetEngineDevice(),
Adapter.SceneManager, Adapter.TechniqueContext,
GetWorldRay(clientPt), Utils.AsCameraDesc(Camera), ClientSize, Picking.Flags.Terrain);
if (pick != null && pick.Length > 0)
{
result = pick[0].hitPt;
return(true);
}
result = new Vec3F(0.0f, 0.0f, 0.0f);
return(false);
}
protected override IList <object> Pick(MouseEventArgs e)
{
bool multiSelect = DragOverThreshold;
List <object> paths = new List <object>();
Picking.HitRecord[] hits;
if (multiSelect)
{// frustum pick
RectangleF rect = MakeRect(FirstMousePoint, CurrentMousePoint);
var frustum = XLEBridgeUtils.Utils.MakeFrustumMatrix(Utils.AsCameraDesc(Camera), rect, ClientSize);
hits = Picking.FrustumPick(
GameEngine.GetEngineDevice(),
Adapter.SceneManager, Adapter.TechniqueContext,
frustum, Utils.AsCameraDesc(Camera), ClientSize,
Picking.Flags.Objects | Picking.Flags.Helpers);
}
else
{// ray pick
Ray3F rayW = GetWorldRay(CurrentMousePoint);
hits = Picking.RayPick(
GameEngine.GetEngineDevice(),
Adapter.SceneManager, Adapter.TechniqueContext,
rayW, Utils.AsCameraDesc(Camera), ClientSize,
Picking.Flags.Terrain | Picking.Flags.Objects | Picking.Flags.Helpers);
}
if (hits == null)
{
return(new List <object>());
}
// create unique list of hits
HashSet <ulong> instanceSet = new HashSet <ulong>();
var uniqueHits = new List <Picking.HitRecord>();
// build 'path' objects for each hit record.
foreach (var hit in hits)
{
bool added = instanceSet.Add(hit.instanceId);
if (added)
{
uniqueHits.Add(hit);
}
}
var firstHit = new Picking.HitRecord();
// build 'path' objects for each hit record.
foreach (var hit in uniqueHits)
{
var nativeIdMapping = Globals.MEFContainer.GetExportedValue <INativeIdMapping>();
var nobj = nativeIdMapping.GetAdapter(hit.documentId, hit.instanceId).As <DomNodeAdapter>();
if (nobj == null)
{
continue;
}
DomNode dom = nobj.DomNode;
object hitPath = Util.AdaptDomPath(dom);
object obj = DesignView.PickFilter.Filter(hitPath, e);
if (obj != null)
{
if (paths.Count == 0)
{
firstHit = hit;
}
var newPath = obj as AdaptablePath <object> ?? Util.AdaptDomPath((DomNode)obj);
paths.Add(newPath);
}
}
if (multiSelect == false && paths.Count > 0)
{
var path = paths[0];
ISelectionContext selection = DesignView.Context.As <ISelectionContext>();
ILinear linear = path.As <ILinear>();
if (linear != null &&
Control.ModifierKeys == System.Windows.Forms.Keys.Shift &&
selection.SelectionContains(path))
{
ITransactionContext trans = DesignView.Context.As <ITransactionContext>();
trans.DoTransaction(
delegate
{
linear.InsertPoint(firstHit.index, firstHit.hitPt.X, firstHit.hitPt.Y, firstHit.hitPt.Z);
}, "insert control point".Localize()
);
}
}
return(paths);
}
protected override IEnumerable <object> Pick(MouseEventArgs e)
{
bool multiSelect = DragOverThreshold;
Picking.HitRecord[] hits;
if (multiSelect)
{
RectangleF rect = MakeRect(FirstMousePoint, CurrentMousePoint);
var frustum = XLEBridgeUtils.Utils.MakeFrustumMatrix(Utils.AsCameraDesc(Camera), rect, ClientSize);
hits = Picking.FrustumPick(
GameEngine.GetEngineDevice(),
Adapter.SceneManager, Adapter.TechniqueContext,
frustum, Utils.AsCameraDesc(Camera), ClientSize,
Picking.Flags.Objects | Picking.Flags.Helpers);
}
else
{
Ray3F rayW = GetWorldRay(CurrentMousePoint);
hits = Picking.RayPick(
GameEngine.GetEngineDevice(),
Adapter.SceneManager, Adapter.TechniqueContext,
rayW, Utils.AsCameraDesc(Camera), ClientSize,
Picking.Flags.Terrain | Picking.Flags.Objects | Picking.Flags.Helpers);
}
if (hits == null)
{
return(new List <object>());
}
// create unique list of hits
var uniqueHits = new List <DomNode>();
var nativeIdMapping = Globals.MEFContainer.GetExportedValue <INativeIdMapping>();
HashSet <ulong> instanceSet = new HashSet <ulong>();
foreach (var hit in hits)
{
if (instanceSet.Add(hit.instanceId))
{
var nobj = nativeIdMapping.GetAdapter(hit.documentId, hit.instanceId).As <DomNodeAdapter>();
if (nobj != null && nobj.DomNode != null)
{
uniqueHits.Add(nobj.DomNode);
}
}
}
// build 'path' objects for each hit record.
var paths = new List <AdaptablePath <object> >();
foreach (var node in uniqueHits)
{
var hitPath = Util.AdaptDomPath(node);
var obj = DesignView.PickFilter.Filter(hitPath, e);
if (obj != null)
{
var path = obj as AdaptablePath <object> ?? Util.AdaptDomPath((DomNode)obj);
// Prevent the same object from being added multiple times...
if (paths.Where(x => x.Last == path.Last).FirstOrDefault() == null)
{
paths.Add(path);
}
}
}
#if false
if (multiSelect == false && paths.Count > 0 && firstHit != null)
{
var path = paths[0];
ISelectionContext selection = DesignView.Context.As <ISelectionContext>();
ILinear linear = path.As <ILinear>();
if (linear != null &&
Control.ModifierKeys == System.Windows.Forms.Keys.Shift &&
selection.SelectionContains(path))
{
ITransactionContext trans = DesignView.Context.As <ITransactionContext>();
trans.DoTransaction(
delegate
{
linear.InsertPoint(firstHit.index, firstHit.hitPt.X, firstHit.hitPt.Y, firstHit.hitPt.Z);
}, "insert control point".Localize()
);
}
}
#endif
return(paths);
}