1128 lines
48 KiB
C#
1128 lines
48 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using Kitware.VTK;
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namespace vtkControl
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{
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public delegate double[] GetPickPointDelegate(out vtkActor pickedActor, int x, int y);
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class vtkInteractorStyleControl : vtkInteractorStyleTrackballCamera
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{
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// Enum
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private enum EventIds
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{
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NoEvent = 0,
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AnyEvent,
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DeleteEvent,
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StartEvent,
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EndEvent,
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RenderEvent,
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ProgressEvent,
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PickEvent,
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StartPickEvent,
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EndPickEvent,
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AbortCheckEvent,
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ExitEvent,
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LeftButtonPressEvent,
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LeftButtonReleaseEvent,
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MiddleButtonPressEvent,
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MiddleButtonReleaseEvent,
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RightButtonPressEvent,
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RightButtonReleaseEvent,
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EnterEvent,
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LeaveEvent,
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KeyPressEvent,
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KeyReleaseEvent,
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CharEvent,
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ExposeEvent,
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ConfigureEvent,
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TimerEvent,
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MouseMoveEvent,
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MouseWheelForwardEvent,
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MouseWheelBackwardEvent,
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ResetCameraEvent,
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ResetCameraClippingRangeEvent,
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ModifiedEvent,
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WindowLevelEvent,
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StartWindowLevelEvent,
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EndWindowLevelEvent,
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ResetWindowLevelEvent,
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SetOutputEvent,
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ErrorEvent,
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WarningEvent,
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StartInteractionEvent, //mainly used
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InteractionEvent,
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EndInteractionEvent,
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EnableEvent,
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DisableEvent,
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CreateTimerEvent,
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DestroyTimerEvent,
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PlacePointEvent,
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PlaceWidgetEvent,
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CursorChangedEvent,
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ExecuteInformationEvent,
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RenderWindowMessageEvent,
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WrongTagEvent,
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StartAnimationCueEvent, // used
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AnimationCueTickEvent,
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EndAnimationCueEvent,
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VolumeMapperRenderProgressEvent,
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VolumeMapperComputeGradientsEndEvent,
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VolumeMapperComputeGradientsProgressEvent,
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VolumeMapperComputeGradientsStartEvent,
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WidgetModifiedEvent,
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WidgetValueChangedEvent,
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WidgetActivateEvent,
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UserEvent = 1000
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}
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// Variables
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public const int VTKIS_START = 0;
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public const int VTKIS_NONE = 0;
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public const int VTKIS_ROTATE = 1;
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public const int VTKIS_PAN = 2;
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public const int VTKIS_SPIN = 3;
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public const int VTKIS_DOLLY = 4;
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public const int VTKIS_ZOOM = 5;
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public const int VTKIS_USCALE = 6;
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public const int VTKIS_TIMER = 7;
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public const int VTKIS_FORWARDFLY = 8;
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public const int VTKIS_REVERSEFLY = 9;
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public const int VTKIS_SELECTION = 10;
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public const int VTKIS_ANIM_OFF = 0;
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public const int VTKIS_ANIM_ON = 1;
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//
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private double _motionFactor;
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private double[] _rotationCenterWorld;
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private double[] _rotationCenterDisplay;
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private int[] _clickPos;
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private double[] _clickPosWorld;
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private vtkProp _centerAnnotationActor;
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private bool _rubberBandEnabled;
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private bool _animating;
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private System.Windows.Threading.DispatcherTimer _selectionTimer;
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private int _x;
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private int _y;
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// Double click
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protected int _lastX;
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protected int _lastY;
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protected int _numOfClicks;
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protected DateTime _lastClickTime;
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private TimeSpan _doubleClickTimeSpan = new TimeSpan(0, 0, 0, 0, SystemInformation.DoubleClickTime);
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private int _doubleClickDisp = 5;
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//
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protected bool _leftMouseButtonPressed;
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protected bool _rubberBandSelection;
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protected bool _selectionCanceled;
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protected vtkRenderer _selectionRenderer;
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protected vtkRenderer _overlayRenderer;
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protected vtkPolyDataMapper2D _selectionBackgroundMapper;
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protected vtkActor2D _selectionBackgroundActor;
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protected vtkActor2D _selectionBorderActor;
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//
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protected List<vtkMaxBorderWidget> _widgets;
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protected List<vtkMaxBorderWidget> _reversedWidgets;
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// Properties
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public new const string MRFullTypeName = "Kitware.VTK.vtkInteractorStyleControl";
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public bool RubberBandEnabled { get { return _rubberBandEnabled; } set { _rubberBandEnabled = value; } }
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public bool Animating { get { return _animating; } set { _animating = value; } }
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// Getters
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public bool IsRubberBandActive { get { return _rubberBandSelection; } }
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// Callbacks
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public GetPickPointDelegate GetPickPoint;
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// Events
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public event Action<int, int, bool, int, int> PointPickedOnMouseMoveEvt;
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public event Action<MouseEventArgs, bool, int, int> PointPickedOnLeftUpEvt;
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public event Action ClearCurrentMouseSelection;
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public event Action<object, MouseEventArgs> RightButtonPressEvent;
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public event Action ZoomChangedEvent;
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// Constructors
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public vtkInteractorStyleControl()
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{
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_motionFactor = 10.0;
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_rotationCenterWorld = null;
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_animating = false;
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_selectionTimer = new System.Windows.Threading.DispatcherTimer();
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_selectionTimer.Interval = new TimeSpan(0, 0, 0, 0, 200);
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_selectionTimer.Tick += _selectionTimer_Tick;
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//
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_lastX = int.MinValue;
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_lastY = int.MinValue;
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_lastClickTime = DateTime.Now;
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//
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_rubberBandEnabled = true;
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_widgets = new List<vtkMaxBorderWidget>();
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_reversedWidgets = new List<vtkMaxBorderWidget>();
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//
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this.LeftButtonPressEvt += vtkInteractorStyleControl_LeftButtonPressEvt;
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this.LeftButtonReleaseEvt += vtkInteractorStyleControl_LeftButtonReleaseEvt;
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this.MiddleButtonPressEvt += vtkInteractorStyleControl_MiddleButtonPressEvt;
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this.MiddleButtonReleaseEvt += vtkInteractorStyleControl_MiddleButtonReleaseEvt;
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this.RightButtonPressEvt += vtkInteractorStyleControl_RightButtonPressEvt;
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this.RightButtonReleaseEvt += vtkInteractorStyleControl_RightButtonReleaseEvt;
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this.MouseMoveEvt += vtkInteractorStyleControl_MouseMoveEvt;
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this.MouseWheelForwardEvt += vtkInteractorStyleControl_MouseWheelForwardEvt;
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this.MouseWheelBackwardEvt += vtkInteractorStyleControl_MouseWheelBackwardEvt;
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this.KeyPressEvt += VtkInteractorStyleControl_KeyPressEvt;
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}
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new public static vtkInteractorStyleControl New()
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{
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return new vtkInteractorStyleControl();
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}
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// Event handlers
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void vtkInteractorStyleControl_LeftButtonPressEvt(vtkObject sender, vtkObjectEventArgs e)
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{
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vtkRenderWindowInteractor rwi = this.GetInteractor();
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//
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int x = rwi.GetEventPosition()[0];
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int y = rwi.GetEventPosition()[1];
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//
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_numOfClicks = 1;
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// Double click
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if (DateTime.Now - _lastClickTime < _doubleClickTimeSpan &&
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Math.Abs(x - _lastX) < _doubleClickDisp &&
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Math.Abs(y - _lastY) < _doubleClickDisp) _numOfClicks = 2;
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// Set global variable
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_clickPos = new int[] { x, y };
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// World click pos
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vtkRenderer renderer = this.GetCurrentRenderer();
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if (renderer == null) return;
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_clickPosWorld = DisplayToWorld(renderer, new double[] { x, y });
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// Widgets
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vtkMaxBorderWidget borderWidget = null;
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MouseEventArgs mea = new MouseEventArgs(MouseButtons.Left, _numOfClicks, x, y, 0);
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foreach (vtkMaxBorderWidget widget in _reversedWidgets)
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{
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if (widget.LeftButtonPress(mea))
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{
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borderWidget = widget;
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break; // do not return here to set _lastX, lastY, _lastClickTime
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}
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}
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//
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if (borderWidget == null)
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{
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_leftMouseButtonPressed = true;
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_rubberBandSelection = false;
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_selectionCanceled = false;
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// Area selection
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vtkPoints backgroundPoints = _selectionBackgroundMapper.GetInput().GetPoints();
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backgroundPoints.SetPoint(0, _clickPos[0], _clickPos[1], 0.0);
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backgroundPoints.SetPoint(1, _clickPos[0], _clickPos[1], 0.0);
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backgroundPoints.SetPoint(2, _clickPos[0], _clickPos[1], 0.0);
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backgroundPoints.SetPoint(3, _clickPos[0], _clickPos[1], 0.0);
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backgroundPoints.Modified();
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}
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//
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_lastX = x;
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_lastY = y;
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_lastClickTime = DateTime.Now;
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}
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void vtkInteractorStyleControl_LeftButtonReleaseEvt(vtkObject sender, vtkObjectEventArgs e)
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{
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vtkRenderWindowInteractor rwi = this.GetInteractor();
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//
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int x = rwi.GetEventPosition()[0];
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int y = rwi.GetEventPosition()[1];
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// Widgets
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if (!_rubberBandSelection)
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{
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foreach (vtkMaxBorderWidget widget in _reversedWidgets)
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{
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if (widget.LeftButtonRelease(x, y)) return;
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}
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}
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if (!_selectionCanceled)
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{
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int[] mousePos = rwi.GetEventPosition();
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//
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if (PointPickedOnLeftUpEvt != null)
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{
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if (_clickPos == null) { }
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else
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{
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MouseEventArgs mea = new MouseEventArgs(MouseButtons.Left, _numOfClicks, mousePos[0], mousePos[1], 0);
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PointPickedOnLeftUpEvt(mea, _rubberBandSelection, _clickPos[0], _clickPos[1]);
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}
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}
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}
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//
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_clickPos = null;
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_clickPosWorld = null;
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_leftMouseButtonPressed = false;
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_rubberBandSelection = false;
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//
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_selectionBackgroundActor.VisibilityOff();
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_selectionBorderActor.VisibilityOff();
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//
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rwi.Render();
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}
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//
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void vtkInteractorStyleControl_MiddleButtonPressEvt(vtkObject sender, vtkObjectEventArgs e)
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{
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// Cancel rubber band
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CancelRubberBandSelection();
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//
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base.OnLeftButtonDown();
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//
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vtkRenderWindowInteractor rwi = this.GetInteractor();
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//
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int x = rwi.GetEventPosition()[0];
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int y = rwi.GetEventPosition()[1];
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this.FindPokedRenderer(x, y);
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//
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vtkRenderer renderer = this.GetCurrentRenderer();
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if (renderer == null) return;
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//
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_clickPos = rwi.GetEventPosition(); // set global variable
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//
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UpdateRotationCenterDisplay();
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//
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AddAnnotationForCenter3D(rwi, renderer);
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// Widgets - middle pressed
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foreach (vtkMaxBorderWidget widget in _widgets)
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{
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widget.MiddleButtonPress(x, y);
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}
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//
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rwi.Render();
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}
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void vtkInteractorStyleControl_MiddleButtonReleaseEvt(vtkObject sender, vtkObjectEventArgs e)
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{
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vtkRenderer renderer = this.GetCurrentRenderer();
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if (renderer == null) return;
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// Remove first in order not to affect the bounds of the model
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RemoveAnnotationForCenter(renderer);
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//
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vtkRenderWindowInteractor rwi = this.GetInteractor();
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int[] currClickPos = rwi.GetEventPosition();
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//
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if (_clickPos != null && Math.Abs(_clickPos[0] - currClickPos[0]) + Math.Abs(_clickPos[0] - currClickPos[0]) < 2)
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{
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// Only click happened
|
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if (GetPickPoint != null)
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{
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//vtkPropPicker picker = vtkPropPicker.New();
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//renderer.Render(); // to redraw the first - BASE - layer of geometry again
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//picker.Pick(currClickPos[0], currClickPos[1], 0, renderer);
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//_rotationCenterWorld = picker.GetPickPosition();
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vtkActor actor;
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double[] pickPoint = GetPickPoint(out actor, currClickPos[0], currClickPos[1]);
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if (pickPoint != null) _rotationCenterWorld = pickPoint;
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//
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if (actor == null) // picker.GetActor() == null
|
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{
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// The click was not a hit
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// Use the center of the bounding box
|
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double[] bounds = renderer.ComputeVisiblePropBounds();
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_rotationCenterWorld[0] = (bounds[1] + bounds[0]) / 2;
|
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_rotationCenterWorld[1] = (bounds[3] + bounds[2]) / 2;
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_rotationCenterWorld[2] = (bounds[5] + bounds[4]) / 2;
|
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}
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else
|
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|
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{
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// The click was a hit
|
|||
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vtkCamera camera = renderer.GetActiveCamera();
|
|||
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double[] center = camera.GetFocalPoint();
|
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PanCamera(camera, center, _rotationCenterWorld);
|
|||
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AdjustCameraDistance(renderer, camera);
|
|||
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}
|
|||
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}
|
|||
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}
|
|||
|
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// Adjust the clipping range and lights
|
|||
|
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if (this.GetAutoAdjustCameraClippingRange() == 1) ResetClippingRange();
|
|||
|
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if (rwi.GetLightFollowCamera() == 1) renderer.UpdateLightsGeometryToFollowCamera();
|
|||
|
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// Widgets - middle released
|
|||
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foreach (vtkMaxBorderWidget widget in _widgets)
|
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{
|
|||
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widget.MiddleButtonRelease(currClickPos[0], currClickPos[1]);
|
|||
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}
|
|||
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//
|
|||
|
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rwi.Modified();
|
|||
|
|
//
|
|||
|
|
_clickPos = null;
|
|||
|
|
_clickPosWorld = null;
|
|||
|
|
//
|
|||
|
|
base.OnLeftButtonUp(); // left button is rotation by default
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
void vtkInteractorStyleControl_RightButtonPressEvt(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
vtkRenderWindowInteractor rwi = this.GetInteractor();
|
|||
|
|
int x = rwi.GetEventPosition()[0];
|
|||
|
|
int y = rwi.GetEventPosition()[1];
|
|||
|
|
//
|
|||
|
|
this.FindPokedRenderer(x, y);
|
|||
|
|
//
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer != null)
|
|||
|
|
{
|
|||
|
|
int[] clickPos = rwi.GetEventPosition();
|
|||
|
|
// Widgets - right pressed
|
|||
|
|
vtkMaxBorderWidget clickedWidget = null;
|
|||
|
|
MouseEventArgs mea = new MouseEventArgs(MouseButtons.Right, 1, x, y, 0);
|
|||
|
|
//
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
if (widget.RightButtonPress(x, y))
|
|||
|
|
{
|
|||
|
|
clickedWidget = widget;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
RightButtonPressEvent?.Invoke(clickedWidget, mea);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
void vtkInteractorStyleControl_RightButtonReleaseEvt(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
void vtkInteractorStyleControl_MouseMoveEvt(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
_x = this.GetInteractor().GetEventPosition()[0];
|
|||
|
|
_y = this.GetInteractor().GetEventPosition()[1];
|
|||
|
|
// Widgets - Move
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
if (widget.MouseMove(_x, _y))
|
|||
|
|
{
|
|||
|
|
this.GetInteractor().Render();
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
switch (this.GetState())
|
|||
|
|
{
|
|||
|
|
case VTKIS_NONE:
|
|||
|
|
//if (_selection)
|
|||
|
|
{
|
|||
|
|
_selectionTimer.Stop();
|
|||
|
|
_selectionTimer.Start();
|
|||
|
|
//
|
|||
|
|
if (_rubberBandEnabled)
|
|||
|
|
{
|
|||
|
|
if (!_rubberBandSelection && _leftMouseButtonPressed && _clickPos != null &&
|
|||
|
|
Math.Abs(_x - _clickPos[0]) > 1 && Math.Abs(_y - _clickPos[1]) > 1)
|
|||
|
|
{
|
|||
|
|
_rubberBandSelection = true;
|
|||
|
|
}
|
|||
|
|
if (_rubberBandSelection) DrawRubberBandSelection(_x, _y);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case VTKIS_ROTATE:
|
|||
|
|
this.FindPokedRenderer(_x, _y);
|
|||
|
|
this.Rotate();
|
|||
|
|
this.InvokeEvent((uint)EventIds.InteractionEvent, IntPtr.Zero);
|
|||
|
|
break;
|
|||
|
|
case VTKIS_PAN:
|
|||
|
|
this.FindPokedRenderer(_x, _y);
|
|||
|
|
this.Pan();
|
|||
|
|
this.InvokeEvent((uint)EventIds.InteractionEvent, IntPtr.Zero);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
void vtkInteractorStyleControl_MouseWheelForwardEvt(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
if (this.GetState() == VTKIS_NONE)
|
|||
|
|
{
|
|||
|
|
int[] clickPos = this.GetInteractor().GetEventPosition();
|
|||
|
|
this.FindPokedRenderer(clickPos[0], clickPos[1]);
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
|
|||
|
|
double[] worldPos = DisplayToWorld(renderer, new double[] { clickPos[0], clickPos[1] });
|
|||
|
|
|
|||
|
|
vtkCamera camera = renderer.GetActiveCamera();
|
|||
|
|
double factor = Math.Pow(1.1, this._motionFactor * 0.2 * this.GetMouseWheelMotionFactor());
|
|||
|
|
//factor = 1;
|
|||
|
|
camera.SetParallelScale(camera.GetParallelScale() * factor);
|
|||
|
|
|
|||
|
|
double[] worldPosAfter = DisplayToWorld(renderer, new double[] { clickPos[0], clickPos[1] });
|
|||
|
|
|
|||
|
|
PanCamera(camera, worldPosAfter, worldPos);
|
|||
|
|
|
|||
|
|
// Rubber band
|
|||
|
|
if (_rubberBandSelection) DrawRubberBandSelection(_x, _y);
|
|||
|
|
|
|||
|
|
// Widgets - mouse wheel scrolled
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
widget.MouseWheelScrolled();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (ZoomChangedEvent != null) ZoomChangedEvent();
|
|||
|
|
|
|||
|
|
this.GetInteractor().Modified();
|
|||
|
|
this.GetInteractor().Render();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
void vtkInteractorStyleControl_MouseWheelBackwardEvt(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
if (this.GetState() == VTKIS_NONE)
|
|||
|
|
{
|
|||
|
|
int[] clickPos = this.GetInteractor().GetEventPosition();
|
|||
|
|
this.FindPokedRenderer(clickPos[0], clickPos[1]);
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
|
|||
|
|
double[] worldPos = DisplayToWorld(renderer, new double[] { clickPos[0], clickPos[1] });
|
|||
|
|
|
|||
|
|
vtkCamera camera = renderer.GetActiveCamera();
|
|||
|
|
double factor = Math.Pow(1.1, this._motionFactor * 0.2 * this.GetMouseWheelMotionFactor());
|
|||
|
|
//factor = 1.00;
|
|||
|
|
camera.SetParallelScale(camera.GetParallelScale() / factor);
|
|||
|
|
|
|||
|
|
double[] worldPosAfter = DisplayToWorld(renderer, new double[] { clickPos[0], clickPos[1] });
|
|||
|
|
|
|||
|
|
PanCamera(camera, worldPosAfter, worldPos);
|
|||
|
|
|
|||
|
|
// Rubber band
|
|||
|
|
if (_rubberBandSelection) DrawRubberBandSelection(_x, _y);
|
|||
|
|
|
|||
|
|
// Widgets - mouse wheel scrolled
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
widget.MouseWheelScrolled();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (ZoomChangedEvent != null) ZoomChangedEvent();
|
|||
|
|
|
|||
|
|
this.GetInteractor().Modified();
|
|||
|
|
this.GetInteractor().Render();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
private void VtkInteractorStyleControl_KeyPressEvt(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer == null) return;
|
|||
|
|
//
|
|||
|
|
vtkRenderWindowInteractor rwi = this.GetInteractor();
|
|||
|
|
sbyte key = rwi.GetKeyCode();
|
|||
|
|
// Arrow keys for rotation
|
|||
|
|
if (key >= 37 && key <= 40)
|
|||
|
|
{
|
|||
|
|
CancelRubberBandSelection();
|
|||
|
|
//
|
|||
|
|
UpdateRotationCenterDisplay();
|
|||
|
|
rwi.Modified();
|
|||
|
|
//
|
|||
|
|
double delta = 5;
|
|||
|
|
if (key == 37) Rotate(+delta, 0); // left
|
|||
|
|
else if (key == 39) Rotate(-delta, 0); // right
|
|||
|
|
else if (key == 38) Rotate(0, -delta); // up
|
|||
|
|
else if (key == 40) Rotate(0, +delta); // down
|
|||
|
|
//
|
|||
|
|
rwi.Modified();
|
|||
|
|
rwi.Render();
|
|||
|
|
}
|
|||
|
|
// Escape key
|
|||
|
|
else if (key == 27)
|
|||
|
|
{
|
|||
|
|
CancelRubberBandSelection();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Public setters
|
|||
|
|
public void SetSelectionRenderer(vtkRenderer renderer)
|
|||
|
|
{
|
|||
|
|
_selectionRenderer = renderer;
|
|||
|
|
InitializeRubberBandSelection();
|
|||
|
|
}
|
|||
|
|
public void SetOverlayRenderer(vtkRenderer renderer)
|
|||
|
|
{
|
|||
|
|
_overlayRenderer = renderer;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Methods
|
|||
|
|
void _selectionTimer_Tick(object sender, EventArgs e)
|
|||
|
|
{
|
|||
|
|
_selectionTimer.Stop();
|
|||
|
|
this.FindPokedRenderer(_x, _y);
|
|||
|
|
this.Select(_x, _y);
|
|||
|
|
}
|
|||
|
|
public bool IsPositionOverWidget(int x, int y)
|
|||
|
|
{
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
if (widget.MouseOver(x, y)) return true;
|
|||
|
|
}
|
|||
|
|
return false;
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
public void AddVtkMaxWidget(vtkMaxBorderWidget widget)
|
|||
|
|
{
|
|||
|
|
_widgets.Add(widget);
|
|||
|
|
_reversedWidgets.Insert(0, widget);
|
|||
|
|
}
|
|||
|
|
public void RemoveVtkMaxWidget(vtkMaxBorderWidget widget)
|
|||
|
|
{
|
|||
|
|
_widgets.Remove(widget);
|
|||
|
|
_reversedWidgets.Remove(widget);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void Reset()
|
|||
|
|
{
|
|||
|
|
_rotationCenterWorld = null;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void UpdateRotationCenterDisplay()
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer == null) return;
|
|||
|
|
|
|||
|
|
if (_rotationCenterWorld == null)
|
|||
|
|
{
|
|||
|
|
// for the first time use the center of the bounding box
|
|||
|
|
double[] bounds = renderer.ComputeVisiblePropBounds();
|
|||
|
|
_rotationCenterWorld = new double[3];
|
|||
|
|
_rotationCenterWorld[0] = (bounds[1] + bounds[0]) / 2;
|
|||
|
|
_rotationCenterWorld[1] = (bounds[3] + bounds[2]) / 2;
|
|||
|
|
_rotationCenterWorld[2] = (bounds[5] + bounds[4]) / 2;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// must update since zoom can also change
|
|||
|
|
_rotationCenterDisplay = WorldToDisplay(renderer, _rotationCenterWorld);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public static double[] WorldToDisplay(vtkRenderer renderer, double[] worldPos)
|
|||
|
|
{
|
|||
|
|
IntPtr posOutPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(2 * 8);
|
|||
|
|
ComputeWorldToDisplay(renderer, worldPos[0], worldPos[1], worldPos[2], posOutPtr);
|
|||
|
|
double[] displayPos = new double[2];
|
|||
|
|
System.Runtime.InteropServices.Marshal.Copy(posOutPtr, displayPos, 0, 2);
|
|||
|
|
return displayPos;
|
|||
|
|
}
|
|||
|
|
public static double[] DisplayToWorld(vtkRenderer renderer, double[] displayPos)
|
|||
|
|
{
|
|||
|
|
IntPtr posOutPtr = System.Runtime.InteropServices.Marshal.AllocHGlobal(4 * 8);
|
|||
|
|
ComputeDisplayToWorld(renderer, displayPos[0], displayPos[1], 0, posOutPtr);
|
|||
|
|
double[] worldPos = new double[3];
|
|||
|
|
System.Runtime.InteropServices.Marshal.Copy(posOutPtr, worldPos, 0, 3);
|
|||
|
|
return worldPos;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public static double DisplayToWorldScale(vtkRenderer renderer, int size = 1)
|
|||
|
|
{
|
|||
|
|
int delta = 1 * size;
|
|||
|
|
int x = 0;
|
|||
|
|
int y = 0;
|
|||
|
|
double[] p1 = vtkInteractorStyleControl.DisplayToWorld(renderer, new double[] { x, y });
|
|||
|
|
double[] p2 = vtkInteractorStyleControl.DisplayToWorld(renderer, new double[] { x + delta, y });
|
|||
|
|
return Math.Sqrt(Math.Pow(p1[0] - p2[0], 2)
|
|||
|
|
+ Math.Pow(p1[1] - p2[1], 2)
|
|||
|
|
+ Math.Pow(p1[2] - p2[2], 2));
|
|||
|
|
}
|
|||
|
|
public override void Pan()
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer == null) return;
|
|||
|
|
//
|
|||
|
|
vtkRenderWindowInteractor rwi = this.GetInteractor();
|
|||
|
|
int[] clickPos = rwi.GetEventPosition();
|
|||
|
|
//
|
|||
|
|
double[] newPickPoint;
|
|||
|
|
double[] oldPickPoint;
|
|||
|
|
//
|
|||
|
|
newPickPoint = DisplayToWorld(renderer, new double[] { clickPos[0], clickPos[1] });
|
|||
|
|
oldPickPoint = DisplayToWorld(renderer, new double[] { rwi.GetLastEventPosition()[0], rwi.GetLastEventPosition()[1] });
|
|||
|
|
//
|
|||
|
|
vtkCamera camera = renderer.GetActiveCamera();
|
|||
|
|
PanCamera(camera, newPickPoint, oldPickPoint);
|
|||
|
|
//
|
|||
|
|
if (rwi.GetLightFollowCamera() == 1) renderer.UpdateLightsGeometryToFollowCamera();
|
|||
|
|
// Widgets - Pan
|
|||
|
|
int dx;
|
|||
|
|
int dy;
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
// compute the delta
|
|||
|
|
dx = clickPos[0] - rwi.GetLastEventPosition()[0];
|
|||
|
|
dy = clickPos[1] - rwi.GetLastEventPosition()[1];
|
|||
|
|
//
|
|||
|
|
widget.MousePan(dx, dy);
|
|||
|
|
}
|
|||
|
|
rwi.Render();
|
|||
|
|
}
|
|||
|
|
private void PanCamera(vtkCamera camera, double[] posStart, double[] posEnd)
|
|||
|
|
{
|
|||
|
|
double[] motionVector = new double[3];
|
|||
|
|
motionVector[0] = posEnd[0] - posStart[0];
|
|||
|
|
motionVector[1] = posEnd[1] - posStart[1];
|
|||
|
|
motionVector[2] = posEnd[2] - posStart[2];
|
|||
|
|
//
|
|||
|
|
double[] cPos = camera.GetPosition();
|
|||
|
|
double[] fPos = camera.GetFocalPoint();
|
|||
|
|
//
|
|||
|
|
//System.Diagnostics.Debug.WriteLine(string.Format("cPos1 x: {0}, y: {1}, z: {2}", cPos[0], cPos[1], cPos[2]));
|
|||
|
|
//
|
|||
|
|
camera.SetPosition(cPos[0] + motionVector[0], cPos[1] + motionVector[1], cPos[2] + motionVector[2]);
|
|||
|
|
camera.SetFocalPoint(fPos[0] + motionVector[0], fPos[1] + motionVector[1], fPos[2] + motionVector[2]);
|
|||
|
|
//
|
|||
|
|
AdjustCameraDistanceAndClipping();
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
public override void Rotate()
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer == null) return;
|
|||
|
|
//
|
|||
|
|
vtkRenderWindowInteractor rwi = this.GetInteractor();
|
|||
|
|
int[] clickPos = rwi.GetEventPosition();
|
|||
|
|
// Compute the angle
|
|||
|
|
int dx = clickPos[0] - rwi.GetLastEventPosition()[0];
|
|||
|
|
int dy = clickPos[1] - rwi.GetLastEventPosition()[1];
|
|||
|
|
//
|
|||
|
|
double delta_elevation = -20.0 / 500;
|
|||
|
|
double delta_azimuth = -20.0 / 500;
|
|||
|
|
//
|
|||
|
|
double rxf = dx * delta_azimuth * this._motionFactor;
|
|||
|
|
double ryf = dy * delta_elevation * this._motionFactor;
|
|||
|
|
//
|
|||
|
|
Rotate(rxf, ryf);
|
|||
|
|
}
|
|||
|
|
public void Rotate(double azimuthAngle, double elevationAngle, double rollAngle = 0)
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer == null) return;
|
|||
|
|
//
|
|||
|
|
vtkCamera camera = renderer.GetActiveCamera();
|
|||
|
|
vtkRenderWindowInteractor rwi = this.GetInteractor();
|
|||
|
|
//
|
|||
|
|
if (azimuthAngle != 0) camera.Azimuth(azimuthAngle);
|
|||
|
|
if (elevationAngle != 0) camera.Elevation(elevationAngle);
|
|||
|
|
if (rollAngle != 0) camera.Roll(rollAngle);
|
|||
|
|
camera.OrthogonalizeViewUp();
|
|||
|
|
// Move the cameras focal point back to the display position of the first click - the opposite direction!
|
|||
|
|
double[] wpa = DisplayToWorld(renderer, _rotationCenterDisplay);
|
|||
|
|
double[] n = camera.GetViewPlaneNormal();
|
|||
|
|
// Compute a plane through rotationWorldCenter and project the rotationDisplayCenter on it
|
|||
|
|
double[] v = new double[3]; // vector from rotationWorldCenter to DisplayToWorld point
|
|||
|
|
double[] rotCenter = _rotationCenterWorld;
|
|||
|
|
if (rotCenter == null) rotCenter = new double[3];
|
|||
|
|
v[0] = wpa[0] - rotCenter[0];
|
|||
|
|
v[1] = wpa[1] - rotCenter[1];
|
|||
|
|
v[2] = wpa[2] - rotCenter[2];
|
|||
|
|
double d = n[0] * v[0] + n[1] * v[1] + n[2] * v[2]; // distance of DisplayToWorld point from plane
|
|||
|
|
wpa[0] -= n[0] * d;
|
|||
|
|
wpa[1] -= n[1] * d;
|
|||
|
|
wpa[2] -= n[2] * d;
|
|||
|
|
//
|
|||
|
|
PanCamera(camera, wpa, rotCenter); // calls AdjustCameraDistanceAndClipping()
|
|||
|
|
// Adjust the lights
|
|||
|
|
if (rwi.GetLightFollowCamera() == 1) renderer.UpdateLightsGeometryToFollowCamera();
|
|||
|
|
// Widgets - Rotate
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
widget.MouseRotate(azimuthAngle, elevationAngle);
|
|||
|
|
}
|
|||
|
|
rwi.Modified();
|
|||
|
|
rwi.Render();
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
private void Select(int x, int y)
|
|||
|
|
{
|
|||
|
|
if (PointPickedOnMouseMoveEvt != null)
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (_clickPos != null && _clickPosWorld != null && renderer != null)
|
|||
|
|
{
|
|||
|
|
int[] clickPos = _clickPos;
|
|||
|
|
if (_rubberBandSelection)
|
|||
|
|
{
|
|||
|
|
double[] clickPosD = WorldToDisplay(renderer, _clickPosWorld);
|
|||
|
|
clickPos[0] = (int)clickPosD[0];
|
|||
|
|
clickPos[1] = (int)clickPosD[1];
|
|||
|
|
}
|
|||
|
|
PointPickedOnMouseMoveEvt(x, y, _rubberBandSelection, clickPos[0], clickPos[1]);
|
|||
|
|
}
|
|||
|
|
else PointPickedOnMouseMoveEvt(x, y, _rubberBandSelection, 0, 0);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
private void DrawRubberBandSelection(int x, int y)
|
|||
|
|
{
|
|||
|
|
if (_clickPosWorld == null) return;
|
|||
|
|
//
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
if (renderer == null) return;
|
|||
|
|
//
|
|||
|
|
double[] clickPos = WorldToDisplay(renderer, _clickPosWorld);
|
|||
|
|
//
|
|||
|
|
_selectionBackgroundActor.VisibilityOn();
|
|||
|
|
_selectionBorderActor.VisibilityOn();
|
|||
|
|
// Border
|
|||
|
|
if (clickPos[0] > x)
|
|||
|
|
{
|
|||
|
|
_selectionBorderActor.GetProperty().SetColor(0.3, 1.0, 0.3);
|
|||
|
|
_selectionBackgroundActor.GetProperty().SetColor(0.2, 1, 0.5);
|
|||
|
|
//_selectionBorderActor.GetProperty().SetLineStipplePattern(65280);
|
|||
|
|
}
|
|||
|
|
else
|
|||
|
|
{
|
|||
|
|
_selectionBorderActor.GetProperty().SetColor(0.3, 0.3, 1.0);
|
|||
|
|
_selectionBackgroundActor.GetProperty().SetColor(0.2, 0.5, 1);
|
|||
|
|
//_selectionBorderActor.GetProperty().SetLineStipplePattern(0xffff);
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
vtkRenderWindowInteractor rwi = this.GetInteractor();
|
|||
|
|
vtkPoints backgroundPoints = _selectionBackgroundMapper.GetInput().GetPoints();
|
|||
|
|
//
|
|||
|
|
int id1 = 1;
|
|||
|
|
int id2 = 2;
|
|||
|
|
int id3 = 3;
|
|||
|
|
// Switch ids 1 and 3 if II or IV quadrant
|
|||
|
|
if ((x < clickPos[0] && y > clickPos[1]) || (x > clickPos[0] && y < clickPos[1]))
|
|||
|
|
{
|
|||
|
|
id1 = 3;
|
|||
|
|
id3 = 1;
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
backgroundPoints.SetPoint(0, clickPos[0], clickPos[1], 0.0);
|
|||
|
|
backgroundPoints.SetPoint(id1, x, clickPos[1], 0.0);
|
|||
|
|
backgroundPoints.SetPoint(id2, x, y, 0.0);
|
|||
|
|
backgroundPoints.SetPoint(id3, clickPos[0], y, 0.0);
|
|||
|
|
backgroundPoints.Modified();
|
|||
|
|
//
|
|||
|
|
rwi.Render();
|
|||
|
|
}
|
|||
|
|
private void CancelRubberBandSelection()
|
|||
|
|
{
|
|||
|
|
if (_rubberBandSelection)
|
|||
|
|
{
|
|||
|
|
_selectionCanceled = true;
|
|||
|
|
_clickPos = null;
|
|||
|
|
_clickPosWorld = null;
|
|||
|
|
_rubberBandSelection = false;
|
|||
|
|
//
|
|||
|
|
_selectionBackgroundActor.VisibilityOff();
|
|||
|
|
_selectionBorderActor.VisibilityOff();
|
|||
|
|
//
|
|||
|
|
ClearCurrentMouseSelection?.Invoke();
|
|||
|
|
//
|
|||
|
|
this.GetInteractor().Render();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
private void AddAnnotationForCenter3D(vtkRenderWindowInteractor interactor, vtkRenderer renderer)
|
|||
|
|
{
|
|||
|
|
if (_centerAnnotationActor != null) RemoveAnnotationForCenter(renderer);
|
|||
|
|
//
|
|||
|
|
int[] size = renderer.GetSize();
|
|||
|
|
double minSize = Math.Min(size[0], size[1]);
|
|||
|
|
vtkCamera camera = renderer.GetActiveCamera();
|
|||
|
|
double scale = camera.GetParallelScale();
|
|||
|
|
double dMin = 30 / minSize * scale;
|
|||
|
|
double dMax = 100 / minSize * scale;
|
|||
|
|
//
|
|||
|
|
vtkPoints points = vtkPoints.New();
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0] + dMin, _rotationCenterWorld[1], _rotationCenterWorld[2]);
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0] + dMax, _rotationCenterWorld[1], _rotationCenterWorld[2]);
|
|||
|
|
//
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0] - dMin, _rotationCenterWorld[1], _rotationCenterWorld[2]);
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0] - dMax, _rotationCenterWorld[1], _rotationCenterWorld[2]);
|
|||
|
|
//
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0], _rotationCenterWorld[1] + dMin, _rotationCenterWorld[2]);
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0], _rotationCenterWorld[1] + dMax, _rotationCenterWorld[2]);
|
|||
|
|
//
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0], _rotationCenterWorld[1] - dMin, _rotationCenterWorld[2]);
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0], _rotationCenterWorld[1] - dMax, _rotationCenterWorld[2]);
|
|||
|
|
//
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0], _rotationCenterWorld[1], _rotationCenterWorld[2] + dMax * 1.3);
|
|||
|
|
points.InsertNextPoint(_rotationCenterWorld[0], _rotationCenterWorld[1], _rotationCenterWorld[2] - dMax * 0.7);
|
|||
|
|
//
|
|||
|
|
vtkCellArray lineIndices = vtkCellArray.New();
|
|||
|
|
for (int i = 0; i < 5; i++)
|
|||
|
|
{
|
|||
|
|
lineIndices.InsertNextCell(2);
|
|||
|
|
lineIndices.InsertCellPoint(2 * i);
|
|||
|
|
lineIndices.InsertCellPoint(2 * i + 1);
|
|||
|
|
}
|
|||
|
|
//
|
|||
|
|
vtkPolyData pointsPolyData = vtkPolyData.New();
|
|||
|
|
pointsPolyData.SetPoints(points);
|
|||
|
|
pointsPolyData.SetLines(lineIndices);
|
|||
|
|
// Visualize
|
|||
|
|
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
|
|||
|
|
mapper.SetInput(pointsPolyData);
|
|||
|
|
mapper.Update();
|
|||
|
|
//
|
|||
|
|
vtkActor actor = vtkActor.New();
|
|||
|
|
actor.SetMapper(mapper);
|
|||
|
|
actor.GetProperty().SetColor(1, 0.7, 0);
|
|||
|
|
//actor.GetProperty().SetLineWidth(1);
|
|||
|
|
renderer.AddActor(actor);
|
|||
|
|
_centerAnnotationActor = actor;
|
|||
|
|
}
|
|||
|
|
private void RemoveAnnotationForCenter(vtkRenderer renderer)
|
|||
|
|
{
|
|||
|
|
if (_centerAnnotationActor != null)
|
|||
|
|
{
|
|||
|
|
renderer.RemoveActor(_centerAnnotationActor);
|
|||
|
|
_centerAnnotationActor.Dispose();
|
|||
|
|
_centerAnnotationActor = null;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
public void AdjustCameraDistanceAndClipping()
|
|||
|
|
{
|
|||
|
|
vtkRenderer renderer = this.GetCurrentRenderer();
|
|||
|
|
vtkCamera camera = renderer.GetActiveCamera();
|
|||
|
|
//
|
|||
|
|
AdjustCameraDistance(renderer, camera);
|
|||
|
|
ResetClippingRange();
|
|||
|
|
// Widgets - Modified
|
|||
|
|
foreach (vtkMaxBorderWidget widget in _widgets)
|
|||
|
|
{
|
|||
|
|
widget.CameraModified();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
private void AdjustCameraDistance(vtkRenderer renderer, vtkCamera camera)
|
|||
|
|
{
|
|||
|
|
// Camera should not be to close or to far
|
|||
|
|
double[] b1 = renderer.ComputeVisiblePropBounds();
|
|||
|
|
double[] b2 = _selectionRenderer.ComputeVisiblePropBounds();
|
|||
|
|
double[] b3 = _overlayRenderer.ComputeVisiblePropBounds();
|
|||
|
|
//
|
|||
|
|
double[] b = new double[] { Math.Min(b1[0], Math.Min(b2[0], b3[0])), Math.Max(b1[1], Math.Max(b2[1], b3[1])),
|
|||
|
|
Math.Min(b1[2], Math.Min(b2[2], b3[2])), Math.Max(b1[3], Math.Max(b2[3], b3[3])),
|
|||
|
|
Math.Min(b1[4], Math.Min(b2[4], b3[4])), Math.Max(b1[5], Math.Max(b2[5], b3[5]))};
|
|||
|
|
//
|
|||
|
|
double r = 0.5 * Math.Sqrt(Math.Pow(b[0] - b[1], 2) + Math.Pow(b[2] - b[3], 2) + Math.Pow(b[4] - b[5], 2)); // radius
|
|||
|
|
r *= 1.05;
|
|||
|
|
double[] center = new double[] { (b[0] + b[1]) / 2, (b[2] + b[3]) / 2, (b[4] + b[5]) / 2 };
|
|||
|
|
//
|
|||
|
|
double[] pos = camera.GetPosition();
|
|||
|
|
//
|
|||
|
|
double[] delta = new double[3]; // vector from camera position to the geometry center
|
|||
|
|
//
|
|||
|
|
delta[0] = center[0] - pos[0];
|
|||
|
|
delta[1] = center[1] - pos[1];
|
|||
|
|
delta[2] = center[2] - pos[2];
|
|||
|
|
//
|
|||
|
|
double[] normal = camera.GetDirectionOfProjection();
|
|||
|
|
double d = normal[0] * delta[0] + normal[1] * delta[1] + normal[2] * delta[2]; // distance to geometry center
|
|||
|
|
double k = d - r;
|
|||
|
|
//
|
|||
|
|
double[] motionVector = new double[3];
|
|||
|
|
motionVector[0] = k * normal[0];
|
|||
|
|
motionVector[1] = k * normal[1];
|
|||
|
|
motionVector[2] = k * normal[2];
|
|||
|
|
//
|
|||
|
|
//System.Diagnostics.Debug.WriteLine(string.Format("pos4 x: {0}, y: {1}, z: {2}", pos[0], pos[1], pos[2]));
|
|||
|
|
//
|
|||
|
|
double[] newPos = new double[3];
|
|||
|
|
newPos[0] = pos[0] + motionVector[0];
|
|||
|
|
newPos[1] = pos[1] + motionVector[1];
|
|||
|
|
newPos[2] = pos[2] + motionVector[2];
|
|||
|
|
camera.SetPosition(newPos[0], newPos[1], newPos[2]);
|
|||
|
|
//
|
|||
|
|
//System.Diagnostics.Debug.WriteLine(string.Format("pos5 x: {0}, y: {1}, z: {2}", newPos[0], newPos[1], newPos[2]));
|
|||
|
|
//
|
|||
|
|
//double[] focalPos = camera.GetFocalPoint();
|
|||
|
|
//newPos[0] = focalPos[0] + motionVector[0];
|
|||
|
|
//newPos[1] = focalPos[1] + motionVector[1];
|
|||
|
|
//newPos[2] = focalPos[2] + motionVector[2];
|
|||
|
|
newPos[0] += normal[0];
|
|||
|
|
newPos[1] += normal[1];
|
|||
|
|
newPos[2] += normal[2];
|
|||
|
|
//
|
|||
|
|
camera.SetFocalPoint(newPos[0], newPos[1], newPos[2]);
|
|||
|
|
}
|
|||
|
|
private void AdjustCameraDistance__(vtkRenderer renderer, vtkCamera camera)
|
|||
|
|
{
|
|||
|
|
double[] b = renderer.ComputeVisiblePropBounds();
|
|||
|
|
double l = 0.01 * Math.Sqrt(Math.Pow(b[0] - b[1], 2) + Math.Pow(b[2] - b[3], 2) + Math.Pow(b[4] - b[5], 2));
|
|||
|
|
|
|||
|
|
double[] pos = camera.GetPosition();
|
|||
|
|
double[] direction = camera.GetViewPlaneNormal();
|
|||
|
|
double[] point = null;
|
|||
|
|
if (direction[0] > 0 && direction[1] > 0 && direction[2] > 0) point = new double[] { b[1], b[3], b[5] };
|
|||
|
|
else if (direction[0] <= 0 && direction[1] > 0 && direction[2] > 0) point = new double[] { b[0], b[3], b[5] };
|
|||
|
|
else if (direction[0] <= 0 && direction[1] <= 0 && direction[2] > 0) point = new double[] { b[0], b[2], b[5] };
|
|||
|
|
else if (direction[0] > 0 && direction[1] <= 0 && direction[2] > 0) point = new double[] { b[1], b[2], b[5] };
|
|||
|
|
|
|||
|
|
else if (direction[0] > 0 && direction[1] > 0 && direction[2] <= 0) point = new double[] { b[1], b[3], b[4] };
|
|||
|
|
else if (direction[0] <= 0 && direction[1] > 0 && direction[2] <= 0) point = new double[] { b[0], b[3], b[4] };
|
|||
|
|
else if (direction[0] <= 0 && direction[1] <= 0 && direction[2] <= 0) point = new double[] { b[0], b[2], b[4] };
|
|||
|
|
else if (direction[0] > 0 && direction[1] <= 0 && direction[2] <= 0) point = new double[] { b[1], b[2], b[4] };
|
|||
|
|
else throw new Exception();
|
|||
|
|
|
|||
|
|
double[] relDir = new double[] { point[0] - pos[0], point[1] - pos[1], point[2] - pos[2] };
|
|||
|
|
|
|||
|
|
// positive value means the camera distance
|
|||
|
|
double d = -(direction[0] * relDir[0] + direction[1] * relDir[1] + direction[2] * relDir[2]);
|
|||
|
|
d -= l;
|
|||
|
|
|
|||
|
|
double[] newPos = new double[3];
|
|||
|
|
newPos[0] = pos[0] - d * direction[0];
|
|||
|
|
newPos[1] = pos[1] - d * direction[1];
|
|||
|
|
newPos[2] = pos[2] - d * direction[2];
|
|||
|
|
camera.SetPosition(newPos[0], newPos[1], newPos[2]);
|
|||
|
|
}
|
|||
|
|
private void AdjustCameraDistance_(vtkRenderer renderer, vtkCamera camera)
|
|||
|
|
{
|
|||
|
|
double[] b = renderer.ComputeVisiblePropBounds();
|
|||
|
|
double[] center = new double[] { (b[0] + b[1]) / 2, (b[2] + b[3]) / 2, (b[4] + b[5]) / 2 };
|
|||
|
|
double R = Math.Sqrt(Math.Pow(b[0] - b[1], 2) + Math.Pow(b[2] - b[3], 2) + Math.Pow(b[4] - b[5], 2)) / 2;
|
|||
|
|
|
|||
|
|
double[] pos = camera.GetPosition();
|
|||
|
|
double[] direction = camera.GetViewPlaneNormal();
|
|||
|
|
double[] point = new double[] { center[0] + R * direction[0], center[1] + R * direction[1], center[2] + R * direction[2] };
|
|||
|
|
double[] relDir = new double[] { point[0] - pos[0], point[1] - pos[1], point[2] - pos[2] };
|
|||
|
|
|
|||
|
|
|
|||
|
|
// positive value means the camera will move forward
|
|||
|
|
double d = -(direction[0] * relDir[0] + direction[1] * relDir[1] + direction[2] * relDir[2]);
|
|||
|
|
d -= R * 0.01;
|
|||
|
|
|
|||
|
|
camera.SetDistance(d + 10);
|
|||
|
|
|
|||
|
|
double[] newPos = new double[3];
|
|||
|
|
newPos[0] = pos[0] - d * direction[0];
|
|||
|
|
newPos[1] = pos[1] - d * direction[1];
|
|||
|
|
newPos[2] = pos[2] - d * direction[2];
|
|||
|
|
camera.SetPosition(newPos[0], newPos[1], newPos[2]);
|
|||
|
|
|
|||
|
|
//System.Diagnostics.Debug.WriteLine(string.Format("newPos x: {0}, y: {1}, z: {1}", newPos[0], newPos[1], newPos[2]));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
public void ResetClippingRange()
|
|||
|
|
{
|
|||
|
|
double min, max, minSel, maxSel, minOver, maxOver;
|
|||
|
|
min = max = minSel = maxSel = minOver = maxOver = 0;
|
|||
|
|
//
|
|||
|
|
GetCurrentRenderer().ResetCameraClippingRange();
|
|||
|
|
GetCurrentRenderer().GetActiveCamera().GetClippingRange(ref min, ref max);
|
|||
|
|
//
|
|||
|
|
_selectionRenderer.ResetCameraClippingRange();
|
|||
|
|
_selectionRenderer.GetActiveCamera().GetClippingRange(ref minSel, ref maxSel);
|
|||
|
|
//
|
|||
|
|
_overlayRenderer.ResetCameraClippingRange();
|
|||
|
|
_overlayRenderer.GetActiveCamera().GetClippingRange(ref minOver, ref maxOver);
|
|||
|
|
// Near and far settng for the Z-buffer
|
|||
|
|
GetCurrentRenderer().GetActiveCamera().SetClippingRange(Math.Min(min, Math.Min(minSel, minOver)),
|
|||
|
|
Math.Max(max, Math.Max(maxSel, maxOver)));
|
|||
|
|
//System.Diagnostics.Debug.WriteLine("Near: " + Math.Min(min, Math.Min(minSel, minOver)) + " " +
|
|||
|
|
// "Far: " + Math.Max(max, Math.Max(maxSel, maxOver)));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void InitializeRubberBandSelection()
|
|||
|
|
{
|
|||
|
|
vtkPoints backgroundPoints = vtkPoints.New();
|
|||
|
|
backgroundPoints.SetNumberOfPoints(4);
|
|||
|
|
backgroundPoints.SetPoint(0, 0.0, 0.0, 0.0);
|
|||
|
|
backgroundPoints.SetPoint(1, 10.5, 0.0, 0.0);
|
|||
|
|
backgroundPoints.SetPoint(2, 10.5, 10.5, 0.0);
|
|||
|
|
backgroundPoints.SetPoint(3, 0.0, 10.5, 0.0);
|
|||
|
|
|
|||
|
|
vtkCellArray backgroundPolygon = vtkCellArray.New();
|
|||
|
|
backgroundPolygon.InsertNextCell(4);
|
|||
|
|
backgroundPolygon.InsertCellPoint(0);
|
|||
|
|
backgroundPolygon.InsertCellPoint(1);
|
|||
|
|
backgroundPolygon.InsertCellPoint(2);
|
|||
|
|
backgroundPolygon.InsertCellPoint(3);
|
|||
|
|
|
|||
|
|
vtkPolyData backgroundPolyData = vtkPolyData.New();
|
|||
|
|
backgroundPolyData.SetPoints(backgroundPoints);
|
|||
|
|
backgroundPolyData.SetPolys(backgroundPolygon);
|
|||
|
|
|
|||
|
|
_selectionBackgroundMapper = vtkPolyDataMapper2D.New();
|
|||
|
|
_selectionBackgroundMapper.SetInput(backgroundPolyData);
|
|||
|
|
|
|||
|
|
_selectionBackgroundActor = vtkActor2D.New();
|
|||
|
|
_selectionBackgroundActor.SetMapper(_selectionBackgroundMapper);
|
|||
|
|
_selectionBackgroundActor.GetProperty().SetOpacity(0.2);
|
|||
|
|
_selectionBackgroundActor.VisibilityOff();
|
|||
|
|
_selectionBackgroundActor.GetProperty().SetColor(0.2, 0.5, 1);
|
|||
|
|
_selectionRenderer.AddActor(_selectionBackgroundActor);
|
|||
|
|
|
|||
|
|
|
|||
|
|
vtkCellArray borderPolygon = vtkCellArray.New();
|
|||
|
|
borderPolygon.InsertNextCell(5);
|
|||
|
|
borderPolygon.InsertCellPoint(0);
|
|||
|
|
borderPolygon.InsertCellPoint(1);
|
|||
|
|
borderPolygon.InsertCellPoint(2);
|
|||
|
|
borderPolygon.InsertCellPoint(3);
|
|||
|
|
borderPolygon.InsertCellPoint(0);
|
|||
|
|
|
|||
|
|
vtkPolyData borderPolyData = vtkPolyData.New();
|
|||
|
|
borderPolyData.SetPoints(backgroundPoints);
|
|||
|
|
borderPolyData.SetLines(borderPolygon);
|
|||
|
|
|
|||
|
|
vtkPolyDataMapper2D borderMapper = vtkPolyDataMapper2D.New();
|
|||
|
|
borderMapper.SetInput(borderPolyData);
|
|||
|
|
|
|||
|
|
_selectionBorderActor = vtkActor2D.New();
|
|||
|
|
_selectionBorderActor.SetMapper(borderMapper);
|
|||
|
|
_selectionBorderActor.GetProperty().SetColor(0.3, 0.3, 1.0);
|
|||
|
|
_selectionBorderActor.VisibilityOff();
|
|||
|
|
|
|||
|
|
_selectionRenderer.AddActor(_selectionBorderActor);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private void DrawSphereOnLeft(vtkObject sender, vtkObjectEventArgs e)
|
|||
|
|
{
|
|||
|
|
vtkInteractorStyleControl interactor = (vtkInteractorStyleControl)sender;
|
|||
|
|
vtkRenderer renderer = interactor.GetInteractor().GetRenderWindow().GetRenderers().GetFirstRenderer();
|
|||
|
|
|
|||
|
|
int[] clickPos = interactor.GetInteractor().GetEventPosition();
|
|||
|
|
|
|||
|
|
// Pick from this location.
|
|||
|
|
vtkPropPicker picker = vtkPropPicker.New();
|
|||
|
|
|
|||
|
|
//vtkRendererCollection renderers = interactor.GetInteractor().GetRenderWindow().GetRenderers();
|
|||
|
|
//interactor.GetInteractor().GetRenderWindow().RemoveRenderer(renderers.GetNextItem());
|
|||
|
|
|
|||
|
|
renderer.Render(); // to redraw the first layer of geometry
|
|||
|
|
picker.Pick(clickPos[0], clickPos[1], 0, renderer);
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
double[] pos = picker.GetPickPosition();
|
|||
|
|
Console.WriteLine("Pick position (world coordinates) is: " + pos[0].ToString() + " "
|
|||
|
|
+ pos[1].ToString() + " "
|
|||
|
|
+ pos[2].ToString());
|
|||
|
|
|
|||
|
|
//Console.WriteLine("Picked actor: " + picker.GetActor().ToString());
|
|||
|
|
|
|||
|
|
//Create a sphere
|
|||
|
|
vtkSphereSource sphereSource = vtkSphereSource.New();
|
|||
|
|
sphereSource.SetCenter(pos[0], pos[1], pos[2]);
|
|||
|
|
sphereSource.SetRadius(1);
|
|||
|
|
|
|||
|
|
//Create a mapper and actor
|
|||
|
|
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
|
|||
|
|
mapper.SetInputConnection(sphereSource.GetOutputPort());
|
|||
|
|
|
|||
|
|
vtkActor actor = vtkActor.New();
|
|||
|
|
actor.SetMapper(mapper);
|
|||
|
|
actor.PickableOff();
|
|||
|
|
|
|||
|
|
//this.GetInteractor().GetRenderWindow().GetRenderers().GetDefaultRenderer().AddActor(actor);
|
|||
|
|
renderer.AddActor(actor);
|
|||
|
|
|
|||
|
|
// Forward events
|
|||
|
|
interactor.OnLeftButtonUp();
|
|||
|
|
|
|||
|
|
this.GetInteractor().Render();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|