VTK
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measure the distance between two points More...
#include <vtkDistanceWidget.h>
Public Types | |
enum | { Start =0, Define, Manipulate } |
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typedef vtkInteractorObserver | Superclass |
Public Member Functions | |
virtual void | SetEnabled (int) |
void | CreateDefaultRepresentation () |
virtual void | SetProcessEvents (int) |
void | SetRepresentation (vtkDistanceRepresentation *r) |
vtkDistanceRepresentation * | GetDistanceRepresentation () |
virtual void | SetWidgetStateToStart () |
virtual void | SetWidgetStateToManipulate () |
virtual int | GetWidgetState () |
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void | Render () |
virtual void | SetPriority (float) |
virtual int | GetProcessEvents () |
virtual void | ProcessEventsOn () |
virtual void | ProcessEventsOff () |
vtkWidgetEventTranslator * | GetEventTranslator () |
void | SetParent (vtkAbstractWidget *parent) |
virtual vtkAbstractWidget * | GetParent () |
vtkWidgetRepresentation * | GetRepresentation () |
virtual void | SetManagesCursor (int) |
virtual int | GetManagesCursor () |
virtual void | ManagesCursorOn () |
virtual void | ManagesCursorOff () |
vtkAbstractWidget * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
Static Public Member Functions | |
static vtkDistanceWidget * | New () |
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static int | IsTypeOf (const char *type) |
static vtkAbstractWidget * | SafeDownCast (vtkObjectBase *o) |
Protected Member Functions | |
vtkDistanceWidget () | |
~vtkDistanceWidget () | |
void | StartDistanceInteraction (int handleNum) |
void | DistanceInteraction (int handleNum) |
void | EndDistanceInteraction (int handleNum) |
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vtkAbstractWidget () | |
~vtkAbstractWidget () | |
void | SetWidgetRepresentation (vtkWidgetRepresentation *r) |
virtual void | SetCursor (int vtkNotUsed(state)) |
Static Protected Member Functions | |
static void | AddPointAction (vtkAbstractWidget *) |
static void | MoveAction (vtkAbstractWidget *) |
static void | EndSelectAction (vtkAbstractWidget *) |
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static void | ProcessEventsHandler (vtkObject *object, unsigned long event, void *clientdata, void *calldata) |
Protected Attributes | |
int | WidgetState |
int | CurrentHandle |
vtkHandleWidget * | Point1Widget |
vtkHandleWidget * | Point2Widget |
vtkDistanceWidgetCallback * | DistanceWidgetCallback1 |
vtkDistanceWidgetCallback * | DistanceWidgetCallback2 |
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vtkWidgetRepresentation * | WidgetRep |
int | ManagesCursor |
vtkWidgetEventTranslator * | EventTranslator |
vtkWidgetCallbackMapper * | CallbackMapper |
vtkAbstractWidget * | Parent |
void * | CallData |
int | ProcessEvents |
Friends | |
class | vtkDistanceWidgetCallback |
typedef vtkAbstractWidget | Superclass |
static int | IsTypeOf (const char *type) |
static vtkDistanceWidget * | SafeDownCast (vtkObjectBase *o) |
virtual int | IsA (const char *type) |
vtkDistanceWidget * | NewInstance () const |
void | PrintSelf (ostream &os, vtkIndent indent) |
virtual vtkObjectBase * | NewInstanceInternal () const |
measure the distance between two points
The vtkDistanceWidget is used to measure the distance between two points. The two end points can be positioned independently, and when they are released, a special PlacePointEvent is invoked so that special operations may be take to reposition the point (snap to grid, etc.) The widget has two different modes of interaction: when initially defined (i.e., placing the two points) and then a manipulate mode (adjusting the position of the two points).
To use this widget, specify an instance of vtkDistanceWidget and a representation (a subclass of vtkDistanceRepresentation). The widget is implemented using two instances of vtkHandleWidget which are used to position the end points of the line. The representations for these two handle widgets are provided by the vtkDistanceRepresentation.
LeftButtonPressEvent - add a point or select a handle MouseMoveEvent - position the second point or move a handle LeftButtonReleaseEvent - release the handle
vtkWidgetEvent::AddPoint -- add one point; depending on the state it may the first or second point added. Or, if near a handle, select the handle. vtkWidgetEvent::Move -- move the second point or handle depending on the state. vtkWidgetEvent::EndSelect -- the handle manipulation process has completed.
vtkCommand::StartInteractionEvent (beginning to interact) vtkCommand::EndInteractionEvent (completing interaction) vtkCommand::InteractionEvent (moving after selecting something) vtkCommand::PlacePointEvent (after point is positioned; call data includes handle id (0,1))
Definition at line 88 of file vtkDistanceWidget.h.
Standard methods for a VTK class.
Definition at line 96 of file vtkDistanceWidget.h.
anonymous enum |
Description: Enum defining the state of the widget. By default the widget is in Start mode, and expects to be interactively placed. While placing the points the widget transitions to Define state. Once placed, the widget enters the Manipulate state. BTX
Enumerator | |
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Start | |
Define | |
Manipulate |
Definition at line 132 of file vtkDistanceWidget.h.
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Instantiate this class.
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Standard methods for a VTK class.
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Standard methods for a VTK class.
Reimplemented from vtkAbstractWidget.
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Standard methods for a VTK class.
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Standard methods for a VTK class.
Reimplemented from vtkAbstractWidget.
vtkDistanceWidget* vtkDistanceWidget::NewInstance | ( | ) | const |
Standard methods for a VTK class.
void vtkDistanceWidget::PrintSelf | ( | ostream & | os, |
vtkIndent | indent | ||
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Standard methods for a VTK class.
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The method for activating and deactivating this widget. This method must be overridden because it is a composite widget and does more than its superclasses' vtkAbstractWidget::SetEnabled() method.
Reimplemented from vtkAbstractWidget.
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Specify an instance of vtkWidgetRepresentation used to represent this widget in the scene. Note that the representation is a subclass of vtkProp so it can be added to the renderer independent of the widget.
Definition at line 109 of file vtkDistanceWidget.h.
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Return the representation as a vtkDistanceRepresentation.
Definition at line 116 of file vtkDistanceWidget.h.
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Create the default widget representation if one is not set.
Implements vtkAbstractWidget.
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Methods to change the whether the widget responds to interaction. Overridden to pass the state to component widgets.
Reimplemented from vtkAbstractWidget.
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Set the state of the widget. If the state is set to "Manipulate" then it is assumed that the widget and its representation will be initialized programmatically and is not interactively placed. Initially the widget state is set to "Start" which means nothing will appear and the user must interactively place the widget with repeated mouse selections. Set the state to "Start" if you want interactive placement. Generally state changes must be followed by a Render() for things to visually take effect.
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Set the state of the widget. If the state is set to "Manipulate" then it is assumed that the widget and its representation will be initialized programmatically and is not interactively placed. Initially the widget state is set to "Start" which means nothing will appear and the user must interactively place the widget with repeated mouse selections. Set the state to "Start" if you want interactive placement. Generally state changes must be followed by a Render() for things to visually take effect.
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Return the current widget state.
Definition at line 151 of file vtkDistanceWidget.h.
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Definition at line 182 of file vtkDistanceWidget.h.
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Definition at line 160 of file vtkDistanceWidget.h.
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Definition at line 161 of file vtkDistanceWidget.h.
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Definition at line 170 of file vtkDistanceWidget.h.
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Definition at line 171 of file vtkDistanceWidget.h.
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Definition at line 172 of file vtkDistanceWidget.h.
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Definition at line 173 of file vtkDistanceWidget.h.