VTK 3D地球

通过VTK的球形增加地球纹理图片，生成一个3D地球

VTK 管道后处理数据流图

source/reader → filter → mapper → actor → renderer → renderWindow → interactor

实现代码如下：


#include <vtkActor.h>
#include <vtkCellData.h>
#include <vtkColorTransferFunction.h>
#include <vtkDataArray.h>
#include <vtkInteractorStyleTrackballCamera.h>
#include <vtkSphereSource.h>
#include <vtkPolyDataMapper.h>
#include <vtkRenderWindow.h>
#include <vtkRenderWindowInteractor.h>
#include <vtkRenderer.h>
#include <vtkSmartPointer.h>
#include <vtkNew.h>
#include <vtkTextureMapToSphere.h>
#include <vtkJPEGReader.h>
#include <vtkTexture.h>

int main(int argc, char* argv[]) {

	//Create SphereSource
	vtkNew<vtkSphereSource> source;
	source->SetRadius(0.5);
	source->SetPhiResolution(80);
	source->SetThetaResolution(80);

	//Create TextureMapToSphere
	vtkNew<vtkTextureMapToSphere> texturemap;
	texturemap->SetInputConnection(source->GetOutputPort());

	//Create Texture
	vtkNew<vtkJPEGReader> jPEGReader;
	jPEGReader->SetFileName("earth.jpg");
	vtkNew<vtkTexture> texture;
	texture->SetInputConnection(jPEGReader->GetOutputPort());

	//Create Data Set Mapper
	vtkNew<vtkPolyDataMapper> mapper;
	mapper->SetInputConnection(texturemap->GetOutputPort());

	//Create Actor
	vtkNew<vtkActor> actor;
	actor->SetMapper(mapper);
	actor->SetTexture(texture);

	//Create Renderer and RenderWindow and WindowInteractor
	vtkNew<vtkRenderer> render;
	render->AddActor(actor);
	render->SetBackground(0.1, 0.2, 0.3);

	vtkNew<vtkRenderWindow> renderWindow;
	renderWindow->AddRenderer(render);

	vtkNew<vtkRenderWindowInteractor> rwInteractor;
	vtkNew<vtkInteractorStyleTrackballCamera> style;
	rwInteractor->SetRenderWindow(renderWindow);
	rwInteractor->SetInteractorStyle(style);

	rwInteractor->Initialize();
	rwInteractor->Start();

	return 0;
}

结果

earth

源码

参考文献