public override bool Pick(ViewControl vc, Point scrPt)
{
m_hitRegion = HitRegion.None;
if (base.Pick(vc, scrPt) == false)
{
return(false);
}
m_node = GetManipulatorNode(TransformationTypes.Pivot);
Camera camera = vc.Camera;
float s;
Util.CalcAxisLengths(camera, HitMatrix.Translation, out s);
Matrix4F view = camera.ViewMatrix;
Matrix4F vp = view * camera.ProjectionMatrix;
Matrix4F wvp = HitMatrix * vp;
Ray3F rayL = vc.GetRay(scrPt, wvp);
m_hitRegion = m_translatorControl.Pick(HitMatrix, view, rayL, HitRayV, s);
bool picked = m_hitRegion != HitRegion.None;
return(picked);
}
void IManipulator.Render(ViewControl vc)
{
TerrainGob terrain = m_terrainEditor.TerrainEditorControl.SelectedTerrain;
TerrainBrush brush = m_terrainEditor.TerrainEditorControl.SelectedBrush;
TerrainMap terrainMap = m_terrainEditor.TerrainEditorControl.SelectedTerrainMap;
if (brush == null || (!brush.CanApplyTo(terrain) && !brush.CanApplyTo(terrainMap)))
{
return;
}
Vec2F drawscale = new Vec2F(1.0f, 1.0f);
if (brush.CanApplyTo(terrainMap))
{
ImageData mapImg = terrainMap.GetSurface();
ImageData hmImg = terrain.GetSurface();
drawscale.X = (float)hmImg.Width / (float)mapImg.Width;
drawscale.Y = (float)hmImg.Height / (float)mapImg.Height;
}
Point scrPt = vc.PointToClient(Control.MousePosition);
if (!vc.ClientRectangle.Contains(scrPt))
{
return;
}
Ray3F rayw = vc.GetWorldRay(scrPt);
TerrainGob.RayPickRetVal retval;
if (terrain.RayPick(rayw, out retval))
{
terrain.DrawBrush(brush, drawscale, retval.hitpos);
}
}
/// <summary>
/// Creates a ray originating at the given normalized window coordinates and pointing into
/// the screen, along -Z axis. Normalized window coordinates are in the range [-0.5,0.5]
/// with +x pointing to the right and +y pointing up.</summary>
/// <param name="x">The x normalized window coordinate</param>
/// <param name="y">The y normalized window coordinate</param>
/// <returns>The ray</returns>
public Ray3F CreateRay(float x, float y)
{
float height, width;
// Setup ray
Ray3F ray = new Ray3F();
// World height on origin's z value
if (Frustum.IsOrtho)
{
width = Frustum.Right - Frustum.Left;
height = Frustum.Top - Frustum.Bottom;
ray.Origin = new Vec3F(x * width, y * height, -NearZ);
ray.Direction = new Vec3F(0, 0, -1);
}
else
{
height = Frustum.Far * (float)Math.Tan(Frustum.FovY / 2.0f) * 2.0f;
width = Frustum.Far * (float)Math.Tan(Frustum.FovX / 2.0f) * 2.0f;
ray.Origin = new Vec3F(0, 0, 0);
ray.Direction = new Vec3F(x * width, y * height, -Frustum.Far);
float l = ray.Direction.Length;
ray.Direction = ray.Direction / l;
}
return(ray);
}
public override ManipulatorPickResult Pick(ViewControl vc, Point scrPt)
{
m_hitRegion = HitRegion.None;
if (base.Pick(vc, scrPt) == ManipulatorPickResult.Miss)
{
return(ManipulatorPickResult.Miss);
}
m_node = GetManipulatorNode(TransformationTypes.Pivot);
Camera camera = vc.Camera;
Matrix4F view = camera.ViewMatrix;
Matrix4F vp = view * camera.ProjectionMatrix;
Matrix4F wvp = HitMatrix * vp;
Ray3F rayL = vc.GetRay(scrPt, wvp);
m_hitRegion = m_translatorControl.Pick(vc, HitMatrix, view, rayL, HitRayV);
bool picked = m_hitRegion != HitRegion.None;
if (picked)
{
return(ManipulatorPickResult.DeferredBeginDrag);
}
return(ManipulatorPickResult.Miss);
}
public static bool RayPick(Matrix4F viewxform, Matrix4F projxfrom, Ray3F rayW, bool skipSelected, out HitRecord hit)
{
HitRecord *nativeHits = null;
int count;
//bool skipSelected,
fixed(float *ptr1 = &viewxform.M11, ptr2 = &projxfrom.M11)
{
NativeRayPick(
ptr1,
ptr2,
&rayW,
skipSelected,
&nativeHits,
out count);
}
if (count > 0)
{
hit = *nativeHits;
}
else
{
hit = new HitRecord();
}
return(count > 0);
}
public static HitRecord[] RayPick(Matrix4F viewxform, Matrix4F projxfrom, Ray3F rayW, bool skipSelected)
{
HitRecord *nativeHits = null;
int count;
fixed(float *ptr1 = &viewxform.M11, ptr2 = &projxfrom.M11)
{
NativeRayPick(
ptr1,
ptr2,
&rayW,
skipSelected,
&nativeHits,
out count);
}
var objects = new List <HitRecord>();
for (int k = 0; k < count; k++)
{
objects.Add(*nativeHits);
nativeHits++;
}
return(objects.ToArray());
}
private void TestToStringWithCulture(CultureInfo culture)
{
CultureInfo originalCulture = Thread.CurrentThread.CurrentCulture;
Thread.CurrentThread.CurrentCulture = culture;
try
{
string listSeparator = culture.TextInfo.ListSeparator;
string decimalSeparator = culture.NumberFormat.NumberDecimalSeparator;
var o = new Ray3F(new Vec3F(1.1f, 2.2f, 3.3f), new Vec3F(4.4f, 5.5f, 6.6f));
string s = o.ToString(null, null);
TestToStringResults(o, s, listSeparator, decimalSeparator);
string s2 = o.ToString();
Assert.AreEqual(s, s2);
s = o.ToString("G", culture);
TestToStringResults(o, s, listSeparator, decimalSeparator);
s = o.ToString("R", culture);
TestToStringResults(o, s, listSeparator, decimalSeparator);
}
finally
{
Thread.CurrentThread.CurrentCulture = originalCulture;
}
}
private void ApplyBrush(ViewControl vc, System.Drawing.Point scrPt)
{
TerrainGob terrain = m_terrainEditor.TerrainEditorControl.SelectedTerrain;
TerrainBrush brush = m_terrainEditor.TerrainEditorControl.SelectedBrush;
TerrainMap terrainMap = m_terrainEditor.TerrainEditorControl.SelectedTerrainMap;
if (brush == null || (!brush.CanApplyTo(terrain) && !brush.CanApplyTo(terrainMap)))
{
return;
}
Ray3F rayw = vc.GetWorldRay(scrPt);
TerrainGob.RayPickRetVal retval;
if (terrain.RayPick(rayw, out retval))
{
TerrainOp op = null;
if (brush.CanApplyTo(terrain))
{
Point pt = terrain.WorldToSurfaceSpace(retval.hitpos);
brush.Apply(terrain, pt.X, pt.Y, out op);
}
else if (brush.CanApplyTo(terrainMap))
{
Point pt = terrainMap.WorldToSurfaceSpace(retval.hitpos);
brush.Apply(terrainMap, pt.X, pt.Y, out op);
}
m_tmpOps.Add(op);
m_terrainOpList.Add(new WeakReference(op));
m_memUsage += op.SizeInBytes;
}
}
/// <summary>
/// Projects the specified x and y, in normalized window coordinates, onto the grid,
/// and snaps it to the nearest grid vertex if necessary.
/// Normalized window coordinates are in the range [-0.5,0.5] with +x pointing to the
/// right and +y pointing up.</summary>
/// <param name="x">Window x in normalized window coords</param>
/// <param name="y">Window y in normalized window coords</param>
/// <param name="camera">Camera</param>
/// <returns>Projection of x and y onto the grid, in world space.</returns>
public Vec3F Project(float x, float y, Camera camera)
{
Ray3F ray = camera.CreateRay(x, y);
Matrix4F V = new Matrix4F(camera.ViewMatrix);
V.Mul(m_invAxisSystem, V);
if (camera.Frustum.IsOrtho)
{
V = new Matrix4F(m_V);
V.Translation = camera.ViewMatrix.Translation;
}
// origin
Vec3F delta = new Vec3F(0, Height, 0);
V.Transform(delta, out delta);
Vec3F o = delta;
// Up vec
Vec3F axis = V.YAxis;
Vec3F projPt = ray.IntersectPlane(axis, -Vec3F.Dot(o, axis));
// Transform back into world space
Matrix4F Inv = new Matrix4F();
Inv.Invert(camera.ViewMatrix);
Inv.Transform(projPt, out projPt);
if (Snap)
{
projPt = SnapPoint(projPt);
}
return projPt;
}
public override bool Pick(ViewControl vc, Point scrPt)
{
m_hitRegion = HitRegion.None;
if (base.Pick(vc, scrPt) == false)
{
return(false);
}
Camera camera = vc.Camera;
float rad;
Util.CalcAxisLengths(camera, HitMatrix.Translation, out rad);
float tolerance = rad / 10.0f;
// compute ray in object space space.
Matrix4F vp = camera.ViewMatrix * camera.ProjectionMatrix;
Matrix4F wvp = HitMatrix * vp;
Ray3F rayL = vc.GetRay(scrPt, wvp);
Plane3F xplane = new Plane3F(Vec3F.XAxis, Vec3F.ZeroVector);
Plane3F yplane = new Plane3F(Vec3F.YAxis, Vec3F.ZeroVector);
Plane3F zplane = new Plane3F(Vec3F.ZAxis, Vec3F.ZeroVector);
Vec3F pt;
float xdelta = float.MaxValue;
float ydelta = float.MaxValue;
float zdelta = float.MaxValue;
if (rayL.IntersectPlane(xplane, out pt))
{
xdelta = Math.Abs(pt.Length - rad);
}
if (rayL.IntersectPlane(yplane, out pt))
{
ydelta = Math.Abs(pt.Length - rad);
}
if (rayL.IntersectPlane(zplane, out pt))
{
zdelta = Math.Abs(pt.Length - rad);
}
if (xdelta < tolerance && xdelta < ydelta && xdelta < zdelta)
{
m_hitRegion = HitRegion.XAxis;
}
else if (ydelta < tolerance && ydelta < zdelta)
{
m_hitRegion = HitRegion.YAxis;
}
else if (zdelta < tolerance)
{
m_hitRegion = HitRegion.ZAxis;
}
return(m_hitRegion != HitRegion.None);
}
protected override void OnDragOver(DragEventArgs drgevent)
{
base.OnDragOver(drgevent);
if (DesignView.Context == null ||
m_ghosts.Count == 0)
{
return;
}
Point clientPoint = PointToClient(new Point(drgevent.X, drgevent.Y));
Ray3F rayw = GetWorldRay(clientPoint);
bool shiftPressed = Control.ModifierKeys == Keys.Shift;
DomNode hitnode = null;
HitRecord?hit = null;
if (shiftPressed)
{
Matrix4F v = Camera.ViewMatrix;
Matrix4F p = Camera.ProjectionMatrix;
HitRecord[] hits = GameEngine.RayPick(v, p, rayw, false);
foreach (HitRecord ht in hits)
{
hitnode = GameEngine.GetAdapterFromId(ht.instanceId).Cast <DomNode>();
bool skip = false;
// ignore ghosts
foreach (DomNode node in m_ghosts)
{
if (hitnode == node || hitnode.IsDescendantOf(node))
{
skip = true;
break;
}
}
if (skip)
{
continue;
}
hit = ht;
break;
}
}
ISnapFilter snapFilter = Globals.MEFContainer.GetExportedValue <ISnapFilter>();
bool snap = (shiftPressed && hit.HasValue);
foreach (DomNode ghost in m_ghosts)
{
HitRecord?hr = (snap && (snapFilter == null || snapFilter.CanSnapTo(ghost, hitnode))) ? hit : null;
ProjectGhost(ghost, rayw, hr);
}
GameLoop.Update();
GameLoop.Render();
}
public static Ray3F GetRay(this Point scrPt, Matrix4F mtrx, Size controlSize)
{
Vec3F min = Unproject(new Vec3F(scrPt.X, scrPt.Y, 0), mtrx, controlSize);
Vec3F max = Unproject(new Vec3F(scrPt.X, scrPt.Y, 1), mtrx, controlSize);
Vec3F dir = Vec3F.Normalize(max - min);
Ray3F ray = new Ray3F(min, dir);
return(ray);
}
/// <summary>
/// compute ray in given space starting from
/// screen space x,y.
/// The space of the computed ray depends on the value of mtrx:
/// world * view * projection // ray in local space (object space).
/// view * projection // ray in world space.
/// projection // ray in view space.
/// </summary>
public Ray3F GetRay(Point scrPt, Matrix4F mtrx)
{
Vec3F min = Unproject(new Vec3F(scrPt.X, scrPt.Y, 0), mtrx);
Vec3F max = Unproject(new Vec3F(scrPt.X, scrPt.Y, 1), mtrx);
Vec3F dir = Vec3F.Normalize(max - min);
Ray3F ray = new Ray3F(min, dir);
return(ray);
}
public bool Intersect(Ray3F r)
{
float tmin;
float tmax;
Vec3F pos;
Vec3F norm;
bool result = Intersect(r, out tmin, out tmax, out pos, out norm);
return(result);
}
/// <summary>
/// compute ray in world space starting from
/// screen space x,y.
/// </summary>
public Ray3F GetWorldRay(Point scrPt)
{
Matrix4F vp = Camera.ViewMatrix * Camera.ProjectionMatrix;
Vec3F min = Unproject(new Vec3F(scrPt.X, scrPt.Y, 0), vp);
Vec3F max = Unproject(new Vec3F(scrPt.X, scrPt.Y, 1), vp);
Vec3F dir = Vec3F.Normalize(max - min);
Ray3F ray = new Ray3F(min, dir);
return(ray);
}
public override void OnDragging(ViewControl vc, Point scrPt)
{
if (m_hitRegion == HitRegion.None || m_activeOp == null || m_activeOp.NodeList.Count == 0)
{
return;
}
// create ray in view space.
Ray3F rayV = vc.GetWorldRay(scrPt);
using (var intersectionScene = GameEngine.GetEditorSceneManager().GetIntersectionScene())
{
Vec3F intersectionPt;
if (!CalculateTerrainIntersection(vc, rayV, intersectionScene, out intersectionPt))
{
return;
}
if (m_pendingStartPt)
{
m_startPt = intersectionPt;
m_pendingStartPt = false;
}
else
{
bool clampToSurface = Control.ModifierKeys == Keys.Shift;
Vec3F translate = new Vec3F(intersectionPt.X - m_startPt.X, intersectionPt.Y - m_startPt.Y, 0.0f);
for (int i = 0; i < m_activeOp.NodeList.Count; i++)
{
ITransformable node = m_activeOp.NodeList[i];
Path <DomNode> path = new Path <DomNode>(Adapters.Cast <DomNode>(node).GetPath());
Matrix4F parentLocalToWorld = TransformUtils.CalcPathTransform(path, path.Count - 2);
Matrix4F parentWorldToLocal = new Matrix4F();
parentWorldToLocal.Invert(parentLocalToWorld);
Vec3F newWorldPos = m_originalTranslations[i] + translate;
float terrainHeight = 0.0f;
if (GUILayer.EditorInterfaceUtils.GetTerrainHeight(
out terrainHeight, intersectionScene, newWorldPos.X, newWorldPos.Y))
{
newWorldPos.Z = terrainHeight + (clampToSurface ? 0.0f : m_originalHeights[i]);
Vec3F localTranslation;
parentWorldToLocal.TransformVector(newWorldPos, out localTranslation);
node.Translation = localTranslation;
}
}
}
}
}
private void TestToStringResults(Ray3F o, string s, string listSeparator, string decimalSeparator)
{
string[] results = s.Split(new[] { listSeparator }, StringSplitOptions.RemoveEmptyEntries);
Assert.AreEqual(results.Length, 6);
foreach (string oneFloatString in results)
{
Assert.True(oneFloatString.Contains(decimalSeparator));
}
Assert.AreEqual(float.Parse(results[0]), o.Origin.X);
Assert.AreEqual(float.Parse(results[1]), o.Origin.Y);
Assert.AreEqual(float.Parse(results[2]), o.Origin.Z);
Assert.AreEqual(float.Parse(results[3]), o.Direction.X);
Assert.AreEqual(float.Parse(results[4]), o.Direction.Y);
Assert.AreEqual(float.Parse(results[5]), o.Direction.Z);
}
private static float CalcAngle(Vec3F origin, Plane3F plane, Ray3F ray0, Ray3F ray1, float snapAngle)
{
float theta = 0;
Vec3F p0;
Vec3F p1;
if (ray0.IntersectPlane(plane, out p0) &&
ray1.IntersectPlane(plane, out p1))
{
Vec3F v0 = Vec3F.Normalize(p0 - origin);
Vec3F v1 = Vec3F.Normalize(p1 - origin);
theta = CalcAngle(v0, v1, plane.Normal, snapAngle);
}
return(theta);
}
public override void OnDragging(ViewControl vc, Point scrPt)
{
if (m_hitRegion == HitRegion.None || !CanManipulate(m_node))
{
return;
}
Matrix4F proj = vc.Camera.ProjectionMatrix;
// create ray in view space.
Ray3F rayV = vc.GetRay(scrPt, proj);
Vec3F translate = m_translatorControl.OnDragging(rayV);
Vec3F localTranslation;
m_worldToLocal.TransformVector(translate, out localTranslation);
m_node.Pivot = m_originalPivot + localTranslation;
}
public bool RayPick(Ray3F rayw, out RayPickRetVal retval)
{
INativeObject nobj = this.As <INativeObject>();
IntPtr retvalPtr = IntPtr.Zero;
IntPtr rayptr = new IntPtr(&rayw);
nobj.InvokeFunction("RayPick", rayptr, out retvalPtr);
if (retvalPtr != IntPtr.Zero)
{
retval = *(RayPickRetVal *)retvalPtr;
}
else
{
retval = new RayPickRetVal();
}
return(retval.picked);
}
private bool CalculateTerrainIntersection(ViewControl vc, Ray3F ray, GUILayer.IntersectionTestSceneWrapper testScene, out Vec3F result)
{
var nativeVC = vc as NativeDesignControl;
if (nativeVC == null)
{
result = Vec3F.ZeroVector; return(false);
}
var pick = XLEBridgeUtils.Picking.RayPick(nativeVC.Adapter, ray, XLEBridgeUtils.Picking.Flags.Terrain);
if (pick != null && pick.Length > 0)
{
result = pick[0].hitPt;
return(true);
}
result = Vec3F.ZeroVector;
return(false);
}
public override bool Pick(ViewControl vc, Point scrPt)
{
m_hitRegion = HitRegion.None;
if (base.Pick(vc, scrPt) == false)
{
return(false);
}
Camera camera = vc.Camera;
Matrix4F view = camera.ViewMatrix;
Matrix4F vp = view * camera.ProjectionMatrix;
Matrix4F wvp = HitMatrix * vp;
Ray3F rayL = vc.GetRay(scrPt, wvp);
float s = Util.CalcAxisScale(vc.Camera, HitMatrix.Translation, AxisLength, vc.Height);
// There's only one hot-spot for this manipulator:
// a square at the manipulator origin.
Vec3F min = new Vec3F(-0.5f, -0.5f, -0.5f);
Vec3F max = new Vec3F(0.5f, 0.5f, 0.5f);
AABB box = new AABB(min, max);
float centerCubeScale = s * CenterCubeSize;
Matrix4F centerCubeXform = new Matrix4F();
centerCubeXform.Scale(centerCubeScale);
centerCubeXform.Invert(centerCubeXform);
Ray3F ray = rayL;
ray.Transform(centerCubeXform);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.XYSquare;
return(true);
}
m_hitRegion = HitRegion.None;
return(false);
}
public override bool Pick(ViewControl vc, Point scrPt)
{
m_hitRegion = HitRegion.None;
if (base.Pick(vc, scrPt) == false)
{
return(false);
}
Camera camera = vc.Camera;
Matrix4F view = camera.ViewMatrix;
Matrix4F vp = view * camera.ProjectionMatrix;
Matrix4F wvp = HitMatrix * vp;
Ray3F rayL = vc.GetRay(scrPt, wvp);
m_hitRegion = m_translatorControl.Pick(vc, HitMatrix, view, rayL, HitRayV);
bool picked = m_hitRegion != HitRegion.None;
return(picked);
}
bool IManipulator.Pick(ViewControl vc, System.Drawing.Point scrPt)
{
TerrainGob terrain = m_terrainEditor.TerrainEditorControl.SelectedTerrain;
TerrainBrush brush = m_terrainEditor.TerrainEditorControl.SelectedBrush;
if (terrain != null && brush != null)
{
FlattenBrush fbrush = brush as FlattenBrush;
if (fbrush != null)
{
Ray3F rayw = vc.GetWorldRay(scrPt);
TerrainGob.RayPickRetVal retval;
if (terrain.RayPick(rayw, out retval))
{
Point pt = terrain.WorldToSurfaceSpace(retval.hitpos);
ImageData hm = terrain.GetSurface();
fbrush.Height = hm.GetPixelFloat(pt.X, pt.Y);
}
}
return(true);
}
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);
}
/// <summary>
/// Projects the ghost</summary>
private void ProjectGhost(DomNode ghost,
Ray3F rayw,
HitRecord?hit)
{
ITransformable xformnode = ghost.Cast <ITransformable>();
IBoundable bnode = ghost.As <IBoundable>();
AABB box = bnode.BoundingBox;
Vec3F pt;
if (hit.HasValue && hit.Value.hasNormal)
{
Vec3F rad = box.Radius;
Vec3F norm = hit.Value.normal;
Vec3F absNorm = Vec3F.Abs(norm);
Vec3F offset = Vec3F.ZeroVector;
if (absNorm.X > absNorm.Y)
{
if (absNorm.X > absNorm.Z)
{
offset.X = norm.X > 0 ? rad.X : -rad.X;
}
else
{
offset.Z = norm.Z > 0 ? rad.Z : -rad.Z;
}
}
else
{
if (absNorm.Y > absNorm.Z)
{
offset.Y = norm.Y > 0 ? rad.Y : -rad.Y;
}
else
{
offset.Z = norm.Z > 0 ? rad.Z : -rad.Z;
}
}
Vec3F localCenter = box.Center - xformnode.Translation;
pt = hit.Value.hitPt + (offset - localCenter);
}
else
{
float offset = 6.0f * box.Radius.Length;
pt = rayw.Origin + offset * rayw.Direction;
}
if (ViewType == ViewTypes.Front)
{
pt.Z = 0.0f;
}
else if (ViewType == ViewTypes.Top)
{
pt.Y = 0.0f;
}
else if (ViewType == ViewTypes.Left)
{
pt.X = 0.0f;
}
xformnode.Translation = pt;
}
public override void OnDragging(ViewControl vc, Point scrPt)
{
if (m_cancelDrag || m_hitRegion == HitRegion.None || NodeList.Count == 0)
{
return;
}
bool hitAxis = m_hitRegion == HitRegion.XAxis ||
m_hitRegion == HitRegion.YAxis ||
m_hitRegion == HitRegion.ZAxis;
Matrix4F view = vc.Camera.ViewMatrix;
Matrix4F proj = vc.Camera.ProjectionMatrix;
Matrix4F vp = view * proj;
// create ray in world space.
Ray3F rayW = vc.GetRay(scrPt, vp);
// create ray in view space.
Ray3F rayV = vc.GetRay(scrPt, proj);
Vec3F translate = m_translatorControl.OnDragging(rayV);
ISnapSettings snapSettings = (ISnapSettings)DesignView;
bool snapToGeom = Control.ModifierKeys == m_snapGeometryKey;
if (snapToGeom)
{
Vec3F manipPos = HitMatrix.Translation;
Vec3F manipMove;
if (hitAxis)
{
//Make rayw to point toward moving axis and starting
// from manipulator’s world position.
rayW.Direction = Vec3F.Normalize(translate);
rayW.Origin = manipPos;
manipMove = Vec3F.ZeroVector;
m_cancelDrag = true; //stop further snap-to's
}
else
{
manipMove = rayW.ProjectPoint(manipPos) - manipPos;
}
for (int i = 0; i < NodeList.Count; i++)
{
ITransformable node = NodeList[i];
Vec3F snapOffset = TransformUtils.CalcSnapFromOffset(node, snapSettings.SnapFrom);
Path <DomNode> path = new Path <DomNode>(Adapters.Cast <DomNode>(node).GetPath());
Matrix4F parentLocalToWorld = TransformUtils.CalcPathTransform(path, path.Count - 2);
Vec3F orgPosW;
parentLocalToWorld.Transform(m_originalValues[i], out orgPosW);
Matrix4F parentWorldToLocal = new Matrix4F();
parentWorldToLocal.Invert(parentLocalToWorld);
rayW.MoveToIncludePoint(orgPosW + snapOffset + manipMove);
HitRecord[] hits = GameEngine.RayPick(view, proj, rayW, true);
bool cansnap = false;
HitRecord target = new HitRecord();
if (hits.Length > 0)
{
// find hit record.
foreach (var hit in hits)
{
if (m_snapFilter.CanSnapTo(node, GameEngine.GetAdapterFromId(hit.instanceId)))
{
target = hit;
cansnap = true;
break;
}
}
}
if (cansnap)
{
Vec3F pos;
if (target.hasNearestVert && snapSettings.SnapVertex)
{
pos = target.nearestVertex;
}
else
{
pos = target.hitPt;
}
pos -= snapOffset;
parentWorldToLocal.Transform(ref pos);
Vec3F diff = pos - node.Transform.Translation;
node.Translation += diff;
bool rotateOnSnap = snapSettings.RotateOnSnap &&
target.hasNormal &&
(node.TransformationType & TransformationTypes.Rotation) != 0;
if (rotateOnSnap)
{
Vec3F localSurfaceNormal;
parentWorldToLocal.TransformNormal(target.normal, out localSurfaceNormal);
node.Rotation = TransformUtils.RotateToVector(
m_originalRotations[i],
localSurfaceNormal,
AxisSystemType.YIsUp);
}
}
}
}
else
{
IGrid grid = DesignView.Context.Cast <IGame>().Grid;
bool snapToGrid = Control.ModifierKeys == m_snapGridKey &&
grid.Visible &&
vc.Camera.ViewType == ViewTypes.Perspective;
float gridHeight = grid.Height;
// translate.
for (int i = 0; i < NodeList.Count; i++)
{
ITransformable node = NodeList[i];
Path <DomNode> path = new Path <DomNode>(Adapters.Cast <DomNode>(node).GetPath());
Matrix4F parentLocalToWorld = TransformUtils.CalcPathTransform(path, path.Count - 2);
Matrix4F parentWorldToLocal = new Matrix4F();
parentWorldToLocal.Invert(parentLocalToWorld);
Vec3F localTranslation;
parentWorldToLocal.TransformVector(translate, out localTranslation);
Vec3F trans = m_originalValues[i] + localTranslation;
if (snapToGrid)
{
if (grid.Snap)
{
trans = grid.SnapPoint(trans);
}
else
{
trans.Y = gridHeight;
}
}
node.Translation = trans;
}
}
}
public override ManipulatorPickResult Pick(ViewControl vc, Point scrPt)
{
m_hitRegion = HitRegion.None;
if (base.Pick(vc, scrPt) == ManipulatorPickResult.Miss)
{
return(ManipulatorPickResult.Miss);
}
Camera camera = vc.Camera;
float s = Util.CalcAxisScale(vc.Camera, HitMatrix.Translation, AxisLength, vc.Height);
Matrix4F vp = camera.ViewMatrix * camera.ProjectionMatrix;
Matrix4F wvp = HitMatrix * vp;
// get ray in object space space.
Ray3F rayL = vc.GetRay(scrPt, wvp);
m_scale = new Vec3F(1, 1, 1);
m_hitScale = s;
Vec3F min = new Vec3F(-0.5f, -0.5f, -0.5f);
Vec3F max = new Vec3F(0.5f, 0.5f, 0.5f);
AABB box = new AABB(min, max);
Matrix4F boxScale = new Matrix4F();
Matrix4F boxTrans = new Matrix4F();
Matrix4F BoxMtrx = new Matrix4F();
float handleScale = s * AxisHandle;
// +X axis
boxScale.Scale(new Vec3F(s, handleScale, handleScale));
boxTrans.Translation = new Vec3F(s / 2, 0, 0);
BoxMtrx = boxScale * boxTrans;
Ray3F ray = rayL;
BoxMtrx.Invert(BoxMtrx);
ray.Transform(BoxMtrx);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.XAxis;
return(ManipulatorPickResult.DeferredBeginDrag);
}
// -X
boxTrans.Translation = new Vec3F(-s / 2, 0, 0);
BoxMtrx = boxScale * boxTrans;
ray = rayL;
BoxMtrx.Invert(BoxMtrx);
ray.Transform(BoxMtrx);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.NegXAxis;
return(ManipulatorPickResult.DeferredBeginDrag);
}
// y axis
boxScale.Scale(new Vec3F(handleScale, s, handleScale));
boxTrans.Translation = new Vec3F(0, s / 2, 0);
BoxMtrx = boxScale * boxTrans;
ray = rayL;
BoxMtrx.Invert(BoxMtrx);
ray.Transform(BoxMtrx);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.YAxis;
return(ManipulatorPickResult.DeferredBeginDrag);
}
// -Y
boxTrans.Translation = new Vec3F(0, -s / 2, 0);
BoxMtrx = boxScale * boxTrans;
ray = rayL;
BoxMtrx.Invert(BoxMtrx);
ray.Transform(BoxMtrx);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.NegYAxis;
return(ManipulatorPickResult.DeferredBeginDrag);
}
// z axis
boxScale.Scale(new Vec3F(handleScale, handleScale, s));
boxTrans.Translation = new Vec3F(0, 0, s / 2);
BoxMtrx = boxScale * boxTrans;
ray = rayL;
BoxMtrx.Invert(BoxMtrx);
ray.Transform(BoxMtrx);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.ZAxis;
return(ManipulatorPickResult.DeferredBeginDrag);
}
// -Z
boxTrans.Translation = new Vec3F(0, 0, -s / 2);
BoxMtrx = boxScale * boxTrans;
ray = rayL;
BoxMtrx.Invert(BoxMtrx);
ray.Transform(BoxMtrx);
if (box.Intersect(ray))
{
m_hitRegion = HitRegion.NegZAxis;
return(ManipulatorPickResult.DeferredBeginDrag);
}
return(ManipulatorPickResult.Miss);
}
public override void OnDragging(ViewControl vc, Point scrPt)
{
if (m_hitRegion == HitRegion.None || m_activeOp == null || m_activeOp.NodeList.Count == 0)
{
return;
}
Matrix4F view = vc.Camera.ViewMatrix;
// compute world * view
Matrix4F wv = new Matrix4F();
wv.Mul(HitMatrix, view);
// create ray in view space.
Ray3F rayV = vc.GetRay(scrPt, vc.Camera.ProjectionMatrix);
Vec3F xAxis = wv.XAxis;
Vec3F yAxis = wv.YAxis;
Vec3F zAxis = wv.ZAxis;
Vec3F origin = wv.Translation;
m_scale = new Vec3F(1, 1, 1);
float scale = 1;
float a1, a2;
switch (m_hitRegion)
{
case HitRegion.XAxis:
case HitRegion.NegXAxis:
{
a1 = Math.Abs(Vec3F.Dot(HitRayV.Direction, yAxis));
a2 = Math.Abs(Vec3F.Dot(HitRayV.Direction, zAxis));
Vec3F axis = (a1 > a2 ? yAxis : zAxis);
Vec3F p0 = HitRayV.IntersectPlane(axis, -Vec3F.Dot(axis, origin));
Vec3F p1 = rayV.IntersectPlane(axis, -Vec3F.Dot(axis, origin));
float dragAmount = Vec3F.Dot((p1 - p0), xAxis);
if (m_hitRegion == HitRegion.NegXAxis)
{
dragAmount *= -1;
}
m_scale.X = 1.0f + dragAmount / m_hitScale;
scale = m_scale.X;
}
break;
case HitRegion.YAxis:
case HitRegion.NegYAxis:
{
a1 = Math.Abs(Vec3F.Dot(HitRayV.Direction, zAxis));
a2 = Math.Abs(Vec3F.Dot(HitRayV.Direction, xAxis));
Vec3F axis = (a1 > a2 ? zAxis : xAxis);
Vec3F p0 = HitRayV.IntersectPlane(axis, -Vec3F.Dot(axis, origin));
Vec3F p1 = rayV.IntersectPlane(axis, -Vec3F.Dot(axis, origin));
float dragAmount = Vec3F.Dot((p1 - p0), yAxis);
if (m_hitRegion == HitRegion.NegYAxis)
{
dragAmount *= -1;
}
m_scale.Y = 1.0f + dragAmount / m_hitScale;
scale = m_scale.Y;
}
break;
case HitRegion.ZAxis:
case HitRegion.NegZAxis:
{
a1 = Math.Abs(Vec3F.Dot(HitRayV.Direction, xAxis));
a2 = Math.Abs(Vec3F.Dot(HitRayV.Direction, yAxis));
Vec3F axis = (a1 > a2 ? xAxis : yAxis);
Vec3F p0 = HitRayV.IntersectPlane(axis, -Vec3F.Dot(axis, origin));
Vec3F p1 = rayV.IntersectPlane(axis, -Vec3F.Dot(axis, origin));
float dragAmount = Vec3F.Dot((p1 - p0), zAxis);
if (m_hitRegion == HitRegion.NegZAxis)
{
dragAmount *= -1;
}
m_scale.Z = 1.0f + dragAmount / m_hitScale;
scale = m_scale.Z;
}
break;
default:
throw new ArgumentOutOfRangeException();
}
if (m_isUniformScaling)
{
m_scale = new Vec3F(scale, scale, scale);
}
// scale
for (int i = 0; i < m_activeOp.NodeList.Count; i++)
{
ITransformable node = m_activeOp.NodeList[i];
node.Scale = Vec3F.Mul(m_originalScales[i], m_scale);
Matrix4F mtrx = TransformUtils.CalcTransform(
Vec3F.ZeroVector,
node.Rotation,
node.Scale,
m_pivotOffset[i]);
node.Translation = m_originalTranslations[i] + mtrx.Translation;
}
}
protected override IList <object> Pick(MouseEventArgs e)
{
bool multiSelect = DragOverThreshold;
List <object> paths = new List <object>();
HitRecord[] hits;
if (multiSelect)
{// frustum pick
RectangleF rect = MakeRect(FirstMousePoint, CurrentMousePoint);
hits = GameEngine.FrustumPick(SurfaceId, Camera.ViewMatrix, Camera.ProjectionMatrix, rect);
}
else
{// ray pick
Ray3F rayW = GetWorldRay(CurrentMousePoint);
hits = GameEngine.RayPick(Camera.ViewMatrix, Camera.ProjectionMatrix, rayW, false);
}
// create unique list of hits
HashSet <ulong> instanceSet = new HashSet <ulong>();
List <HitRecord> uniqueHits = new List <HitRecord>();
// build 'path' objects for each hit record.
foreach (HitRecord hit in hits)
{
bool added = instanceSet.Add(hit.instanceId);
if (added)
{
uniqueHits.Add(hit);
}
}
HitRecord firstHit = new HitRecord();
// build 'path' objects for each hit record.
foreach (HitRecord hit in uniqueHits)
{
NativeObjectAdapter nobj = GameEngine.GetAdapterFromId(hit.instanceId);
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);
}
