【VTK】改变交互器interactor交互方式的两种方法

最新推荐文章于 2025-01-08 10:30:39 发布

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最新推荐文章于 2025-01-08 10:30:39 发布 · 2.1k 阅读

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CC 4.0 BY-SA版权

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#交互 #fpga开发 #gnu

该代码示例展示了一个使用VTK库创建的3D锥体模型，并实现了右键点击选择细胞的功能。当用户右键点击场景时，程序会在点击位置创建一个红色的球体来标记所选细胞。此外，还定义了一个自定义的交互风格类`MouseInteractorStyle`和回调函数`vtkMyCallback`，用于处理鼠标事件。

#include <vtkSmartPointer.h>
#include <vtkConeSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkCamera.h>
#include <vtkActor.h>
#include <vtkRenderer.h>
#include <vtkCommand.h>
#include <vtkBoxWidget.h>
#include <vtkTransform.h>
#include <vtkInteractorStyleTrackballCamera.h>

#include <vtkTextProperty.h>
#include<vtkProperty.h>
#include<vtkTextActor.h>
#include<vtkDataSetMapper.h>
#include<vtkCellPicker.h>
#include<vtkSelectionNode.h>
#include<vtkSelection.h>
#include<vtkExtractSelection.h>
#include<vtkSelectionNode.h>
#include<vtkActor.h>
#include<vtkUnstructuredGrid.h>


#include<vtkPointData.h>
#include "vtkPoints.h"
#include "vtkPolyVertex.h"
#include "vtkDoubleArray.h"
#include <vtkSphereSource.h>

#include "vtkAutoInit.h" 

VTK_MODULE_INIT(vtkRenderingOpenGL2); // VTK was built with vtkRenderingOpenGL2
VTK_MODULE_INIT(vtkInteractionStyle);
VTK_MODULE_INIT(vtkRenderingFreeType);



class MouseInteractorStyle : public vtkInteractorStyleTrackballCamera
{
	MouseInteractorStyle() {};

public:
	static MouseInteractorStyle* New();
	vtkTypeMacro(MouseInteractorStyle, vtkInteractorStyleTrackballCamera);


	virtual void OnRightButtonDown()
	{
		// Get the location of the click (in window coordinates)
		int* pos = this->GetInteractor()->GetEventPosition();

		vtkSmartPointer<vtkCellPicker> picker = vtkSmartPointer<