{"id":2093,"date":"2024-02-19T11:11:12","date_gmt":"2024-02-19T03:11:12","guid":{"rendered":"https:\/\/sanlangcode.com\/?p=2093"},"modified":"2024-02-19T11:11:12","modified_gmt":"2024-02-19T03:11:12","slug":"vtk-%e4%b8%ad-3d-%e5%9b%be%e5%83%8f%e7%9a%84%e6%98%be%e7%a4%ba%e4%b8%8e%e6%b8%b2%e6%9f%93%e9%80%bb%e8%be%91","status":"publish","type":"post","link":"https:\/\/sanlangcode.com\/index.php\/2024\/02\/19\/vtk-%e4%b8%ad-3d-%e5%9b%be%e5%83%8f%e7%9a%84%e6%98%be%e7%a4%ba%e4%b8%8e%e6%b8%b2%e6%9f%93%e9%80%bb%e8%be%91\/","title":{"rendered":"VTK \u4e2d 3D \u56fe\u50cf\u7684\u663e\u793a\u4e0e\u6e32\u67d3\u903b\u8f91"},"content":{"rendered":"\n

VTK \u4e2d 3D \u56fe\u50cf\u7684\u663e\u793a\u4e0e\u6e32\u67d3\u903b\u8f91\uff0c\u5e76\u9644\u4e0a\u4e00\u4e9b\u793a\u4f8b\u4ee3\u7801\u3002<\/p>\n\n\n\n

  1. \u6570\u636e\u52a0\u8f7d\u4e0e\u51c6\u5907\uff1a<\/strong> \u9996\u5148\uff0c\u9700\u8981\u52a0\u8f7d\u6216\u751f\u6210\u8981\u663e\u793a\u7684\u6570\u636e\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528 vtkDICOMImageReader<\/code> \u4ece DICOM \u6587\u4ef6\u52a0\u8f7d\u4f53\u6570\u636e\uff0c\u6216\u8005\u4f7f\u7528 vtkSphereSource<\/code> \u751f\u6210\u4e00\u4e2a\u7403\u4f53\u4f5c\u4e3a\u7f51\u683c\u6570\u636e\u3002<\/li><\/ol>\n\n\n\n
    import vtk\n\n# \u4ece DICOM \u6587\u4ef6\u52a0\u8f7d\u4f53\u6570\u636e\nreader = vtk.vtkDICOMImageReader()\nreader.SetFileName(\"path_to_dicom_folder\")\nreader.Update()\n\n# \u6216\u8005\u751f\u6210\u7403\u4f53\u7f51\u683c\u6570\u636e\nsphereSource = vtk.vtkSphereSource()\nsphereSource.Update()\n<\/code><\/code><\/pre>\n\n\n\n
    1. \u521b\u5efa\u6e32\u67d3\u7ba1\u7ebf\uff1a<\/strong> \u6e32\u67d3\u7ba1\u7ebf\u662f\u4e00\u7cfb\u5217\u7684\u5904\u7406\u6b65\u9aa4\uff0c\u7528\u4e8e\u5c06\u6570\u636e\u8f6c\u6362\u4e3a\u6700\u7ec8\u6e32\u67d3\u7684\u56fe\u50cf\u3002\u8fd9\u5305\u62ec\u51e0\u4f55\u8f6c\u6362\u3001\u5149\u7167\u6a21\u578b\u3001\u7eb9\u7406\u8d34\u56fe\u7b49\u3002<\/li><\/ol>\n\n\n\n
      # \u521b\u5efa\u7b49\u503c\u9762\uff08isosurface\uff09\u5e76\u6dfb\u52a0\u5230\u6e32\u67d3\u7ba1\u7ebf\u4e2d\ncontour = vtk.vtkContourFilter()\ncontour.SetInputConnection(reader.GetOutputPort())\ncontour.SetValue(0, 100)  # \u8bbe\u7f6e\u7b49\u503c\u9762\u6570\u503c\n\n# \u6dfb\u52a0\u6cd5\u5411\u91cf\u751f\u6210\u5668\nnormals = vtk.vtkPolyDataNormals()\nnormals.SetInputConnection(contour.GetOutputPort())\n\n# \u8bbe\u7f6e\u5149\u7167\u5c5e\u6027\nmapper = vtk.vtkPolyDataMapper()\nmapper.SetInputConnection(normals.GetOutputPort())\n\nactor = vtk.vtkActor()\nactor.SetMapper(mapper)\n<\/code><\/code><\/pre>\n\n\n\n
      1. \u5b9a\u4e49\u6e32\u67d3\u7a97\u53e3\u4e0e\u6e32\u67d3\u5668\uff1a<\/strong> \u521b\u5efa\u6e32\u67d3\u7a97\u53e3\uff0c\u5e76\u6dfb\u52a0\u4e00\u4e2a\u6e32\u67d3\u5668\uff0c\u5c06\u6f14\u5458\uff08actors\uff09\u6dfb\u52a0\u5230\u6e32\u67d3\u5668\u4e2d\u3002<\/li><\/ol>\n\n\n\n
        # \u521b\u5efa\u6e32\u67d3\u5668\nrenderer = vtk.vtkRenderer()\nrenderer.AddActor(actor)\n\n# \u521b\u5efa\u6e32\u67d3\u7a97\u53e3\nrenderWindow = vtk.vtkRenderWindow()\nrenderWindow.AddRenderer(renderer)\n\n# \u521b\u5efa\u4ea4\u4e92\u5668\ninteractor = vtk.vtkRenderWindowInteractor()\ninteractor.SetRenderWindow(renderWindow)\n\n# \u6e32\u67d3\u5e76\u542f\u52a8\u4ea4\u4e92\u5668\nrenderWindow.Render()\ninteractor.Start()\n<\/code><\/code><\/pre>\n\n\n\n
        1. \u8bbe\u7f6e\u76f8\u673a\u89c6\u89d2\uff1a<\/strong> \u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u76f8\u673a\u7684\u4f4d\u7f6e\u3001\u7126\u70b9\u548c\u89c6\u89d2\u6765\u63a7\u5236\u6e32\u67d3\u7ed3\u679c\u7684\u5448\u73b0\u65b9\u5f0f\u3002<\/li><\/ol>\n\n\n\n
          # \u83b7\u53d6\u76f8\u673a\ncamera = renderer.GetActiveCamera()\n\n# \u8bbe\u7f6e\u76f8\u673a\u4f4d\u7f6e\u548c\u7126\u70b9\ncamera.SetPosition(0, 0, 200)\ncamera.SetFocalPoint(0, 0, 0)\n\n# \u8bbe\u7f6e\u89c6\u89d2\ncamera.Zoom(1.0)\n<\/code><\/code><\/pre>\n\n\n\n
          1. \u4ea4\u4e92\u64cd\u4f5c\u4e0e\u7528\u6237\u63a7\u5236\uff1a<\/strong> \u4f7f\u7528\u4ea4\u4e92\u5668\u6765\u542f\u52a8\u4ea4\u4e92\u529f\u80fd\uff0c\u4f8b\u5982\u65cb\u8f6c\u3001\u7f29\u653e\u3001\u5e73\u79fb\u573a\u666f\uff0c\u4ee5\u53ca\u9009\u62e9\u5bf9\u8c61\u7b49\u64cd\u4f5c\u3002<\/li><\/ol>\n\n\n\n
            # \u542f\u52a8\u4ea4\u4e92\u5668\ninteractor.Start()\n<\/code><\/code><\/pre>\n\n\n\n
            1. \u6267\u884c\u6e32\u67d3\u5faa\u73af\uff1a<\/strong> \u6e32\u67d3\u5faa\u73af\u4f1a\u6301\u7eed\u6267\u884c\uff0c\u76f4\u5230\u7528\u6237\u5173\u95ed\u7a97\u53e3\u6216\u9000\u51fa\u7a0b\u5e8f\u3002<\/li><\/ol>\n\n\n\n
              ——————————————————————————————-<\/p>\n\n\n\n
              VTk\u901a\u8fc7\u6570\u636e\u6d41\u5b9e\u73b0\u53d8\u4fe1\u606f\u4e3a\u56fe\u5f62\u6570\u636e\u7684\u3002<\/p>\n\n\n\n
              \u6570\u636e\u6d41\u4e00\u822c\u4e3a\uff1asource\u2014filter\u2014\u2014mapper\u2014\u2014actor\u2014\u2014render\u2014\u2014renderwindow\u2014\u2014interactor\u3002<\/p>\n\n\n\n
              \u8981\u7406\u89e3\u5de5\u4f5c\u539f\u7406\uff0c\u9996\u5148\u660e\u786e\u51e0\u4e2a\u7c7b\u578b\uff1a<\/p>\n\n\n\n
              1.vtkSource(\u6570\u636e\u6e90)   \u8fd9\u4e2a\u5c31\u597d\u6bd4\u4e00\u4e2a\u5267\u672c\u91cc\u9762\u7684\u89d2\u8272\uff0c\u8ba9\u6f14\u5458\u77e5\u9053\u8981\u6f14\u7684\u662f\u4ec0\u4e48\u4eba\u7269\u3002<\/p>\n\n\n\n
               \u6570\u636e\u6e90\u6709\uff1avtkConeSource\uff0cvtkSphereSource,vtkOutlineSource…\u7b49\u7b49\u3002<\/p>\n\n\n\n
               \u5b83\u4eec\u90fd\u7ee7\u627f\u4e0evtkPolyDataAlgorithm\u7c7b\uff0c\u8be5\u7c7b\u7528\u4e8e\u63d0\u4f9b\u4e0d\u540c\u7684\u7c7b\u578b\u7684\u6570\u636e\u6e90<\/p>\n\n\n\n
              2.vtkMapper(\u6620\u5c04\u5668)   \u5b83\u5c31\u50cf\u662f\u4e00\u4e2a\u5267\u672c\uff0c\u5e94\u8be5\u5982\u4f55\u5851\u9020\u89d2\u8272\u7684\u88c5\u626e<\/p>\n\n\n\n
               \u6620\u5c04\u5668\u6709\uff1avtkDataSetMapper,vtkMultiGroupPolyDataMapper,vtkPolyDataMapper\u3002<\/p>\n\n\n\n
               \u5b83\u4eec\u90fd\u7ee7\u627f\u4e8evtkMapper\u7c7b\u3002\u6240\u6709\u7684\u6570\u636e\u5bf9\u8c61\u90fd\u8981\u901a\u8fc7\u6620\u5c04\u5668Mapper\u6620\u5c04\u5230vtkActor\u4e2d\u3002<\/strong><\/p>\n\n\n\n
              3.vtkActor(\u6f14\u5458\uff09 \u6709\u4e86\u5267\u672c\uff0c\u6709\u4e86\u89d2\u8272\uff0c\u5f97\u627e\u4e2a\u771f\u4eba\u6765\u6f14\u51fa\u8fd9\u4e2a\u5267\u672c\u4e86\u3002<\/p>\n\n\n\n
               \u8be5\u7c7b\u7ee7\u627f\u4e8evtkProp3D,\u67094\u4e2a\u5b50\u7c7b\uff1avtkFollow,vtkLODActor,vtkMesaActor,vtkOpenGLActor.<\/p>\n\n\n\n
              4.vtkRenderer(\u6e32\u67d3\u5668)   \u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u76f8\u5f53\u4e8e\u5bf9\u6f14\u5458\u8fdb\u884c\u5316\u5986\u5e76\u5e03\u7f6e\u573a\u666f\uff1b<\/p>\n\n\n\n
               \u8be5\u7c7b\u7ee7\u627f\u4e8evtkViewport,\u67092\u4e2a\u5b50\u7c7b\uff1avtkMesaRender,vtkOpenGLRender.<\/p>\n\n\n\n
               \u8be5\u7c7b\u53e6\u5916\u4e00\u4e2a\u4f5c\u7528\u662f\u8bbe\u7f6e\u7a97\u53e3vtkRenderWindow\u7684\u80cc\u666f.<\/p>\n\n\n\n
              5.vtkRenderWindow(\u7a97\u53e3)    \u8fd9\u4e2a\u5c31\u76f8\u5f53\u4e8e\u4e2a\u821e\u53f0 \uff0c\u628a\u51c6\u5907\u597d\u7684\u6f14\u5458\u653e\u8fdb\u53bb\uff0c\u51c6\u5907\u8868\u6f14\u4e86\uff1b<\/p>\n\n\n\n
               \u8be5\u7c7b\u7ee7\u627f\u4e8evtkWindow,\u67092\u4e2a\u5b50\u7c7b\uff1avtkMesaWindow,vtkOpenGLWindow.<\/p>\n\n\n\n
              6.vtkRenderWindowInteractor(\u7a97\u53e3\u4ea4\u4e92\u5668)    \u8fd9\u4e2a\u50cf\u6444\u50cf\u673a\uff0c\u7528\u4e8e\u6355\u6349\u6f14\u5458\u7684\u52a8\u4f5c\uff0c\u7136\u540e\u4f20\u7ed9\u5bfc\u6f14\u770b<\/p>\n\n\n\n
               \u8be5\u7c7b\u7684\u7ee7\u627f\u5173\u7cfb\u5728vtkRenderWindowInteractor\u6587\u7ae0\u4e2d\u5df2\u7ed9\u51fa\u3002<\/p>\n\n\n\n
              7.vtkInteractorObserver(\u89c2\u5bdf\u8005)        \u6709\u70b9\u5bfc\u6f14\u7684\u610f\u601d\uff0c\u5bfc\u6f14\u901a\u8fc7\u89c2\u770b\u5f55\u50cf\u540e\uff0c\u505a\u51fa\u4e00\u7cfb\u5217\u8c03\u6574<\/p>\n\n\n\n
               \u8be5\u7c7b\u7684\u7ee7\u627f\u5173\u7cfb\u5728vtkRenderWindowInteractor\u6587\u7ae0\u4e2d\u5df2\u7ed9\u51fa<\/p>\n\n\n\n
              \u6e90Source\u5bf9\u8c61\uff1a\u901a\u8fc7\u8bfb\u53d6\u6587\u4ef6\u6216\u91cd\u6784\u6570\u636e\u5bf9\u8c61\u4ea7\u751f\u6570\u636e\u3002
              \u8fc7\u6ee4\u5668Filter\uff1a\u5c06\u8f93\u5165\u6570\u636e\u5904\u7406\u540e\u751f\u6210\u65b0\u7684\u6570\u636e\uff0c\u5176\u4e2d\u8f93\u5165\u6216\u8f93\u51fa\u6570\u636e\u53ef\u4ee5\u5355\u4e2a\uff0c\u6216\u591a\u4e2aSource object
              \u7ed8\u56fe\u5668Mapper\uff1a\u4f4d\u4e8e\u56fe\u5f62\u6a21\u578b\u4e2d\uff0c\u5c06\u6570\u636e\u8f6c\u6210\u56fe\u5f62\u6570\u636e\uff08\u53ef\u7531\u56fe\u5f62\u5f15\u64ce\u6e32\u67d3\uff09
              Writer\uff1a\u662f\u4e00\u79cdMapper\uff0c\u53ef\u4ee5\u5c06\u6570\u636e\u5199\u5165\u6587\u4ef6\u6216\u8f93\u51fa\u6d41\u4e2d\u3002<\/p>\n\n\n\n
              \n\n\n\n
              1.\u5173\u4e8evtk<\/strong><\/p>\n\n\n\n
              vtk\u662f\u4e00\u4e2a3D\u8ba1\u7b97\u673a\u56fe\u5f62\u5b66\u3001\u56fe\u8c61\u5904\u7406\u53ca\u53ef\u89c6\u5316\u5de5\u5177\u5305\u3002<\/p>\n\n\n\n
              2.vtk\u53ef\u5904\u7406\u7684\u6570\u636e\u7c7b\u578b<\/strong><\/p>\n\n\n\n
              \"\"\/<\/figure>\n\n\n\n
              3.vtk\u4f7f\u7528\u6d41\u7a0b<\/strong><\/p>\n\n\n\n
              \u6570\u636e\u6e32\u67d3\u65f6\u7684\u6d41\u7a0b\uff1asource\u2192filter\u2192mapper\u2192actor\u2192render\u2192renderwindow\u2192interactor<\/p>\n\n\n\n
              \"\"\/
              \u53ef\u89c6\u5316\u6d41\u7a0b<\/figcaption><\/figure>\n\n\n\n
              Source(\u6570\u636e\u6e90)\uff1a\u5404\u4e2a\u7c7b\u578b\u7684\u56fe\u50cf\u6570\u636e\u3002<\/p>\n\n\n\n
              Filter(\u8fc7\u6ee4\u5668)\uff1a\u5bf9\u539f\u59cb\u6570\u636e\u505a\u4e00\u4e9b\u64cd\u4f5c\uff0c\u4f8b\u5982\u4e09\u89d2\u5316\u3001\u63d0\u53d6\u8f6e\u5ed3\u7b49\u3002<\/p>\n\n\n\n
              Mapper(\u6620\u5c04\u5668)\uff1a\u628a\u4e0d\u540c\u7684\u6570\u636e\u7c7b\u578b\uff0c\u8f6c\u6210\u56fe\u5f62\u6570\u636e\u3002<\/p>\n\n\n\n
              Actor(\u6f14\u5458)\uff1a\u6267\u884c\u6e32\u67d3mapper\u7684\u5bf9\u8c61\u3002<\/p>\n\n\n\n
              Render(\u6e32\u67d3\u5668)\uff1a\u7528\u4e8e\u6e32\u67d3\u56fe\u50cf\u3002<\/p>\n\n\n\n
              RenderWindow(\u7a97\u53e3)\uff1a\u53ef\u4ee5\u7406\u89e3\u6210\u7528\u4e8e\u6210\u50cf\u7684\u4e00\u4e2a\u5e73\u9762\u3002<\/p>\n\n\n\n
              Interactor(\u4ea4\u4e92)\uff1a\u7528\u4e8e\u83b7\u53d6\u6e32\u67d3\u7a97\u53e3\u4e0a\u53d1\u751f\u7684\u9f20\u6807\uff0c\u952e\u76d8\u4e8b\u4ef6\uff0c\u63d0\u4f9b\u4e86\u72ec\u7acb\u4e8e\u5e73\u53f0\u7684\u4e0e\u6e32\u67d3\u7a97\u53e3\u8fdb\u884c\u4ea4\u4e92\u7684\u673a\u5236<\/p>\n\n\n\n
              4.\u76f8\u673a(camera)<\/strong><\/p>\n\n\n\n
              \"\"\/
              \u76f8\u673a\u6295\u5f71\u793a\u610f\u56fe<\/figcaption><\/figure>\n\n\n\n
              \u4ece\u56fe\u53ef\u4ee5\u770b\u51fa\u4e0e\u76f8\u673a\u6295\u5f71\u76f8\u5173\u7684\u56e0\u7d20\u4e3b\u8981\u6709\uff1a<\/p>\n\n\n\n
              \u76f8\u673a\u4f4d\u7f6e\uff1a\u5373\u76f8\u673a\u6240\u5728\u7684\u4f4d\u7f6e\uff0c\u7528\u65b9\u6cd5vtkCamera.setPosition()\u8bbe\u7f6e\u3002<\/p>\n\n\n\n
              \u76f8\u673a\u7126\u70b9\uff1a\u7528\u65b9\u6cd5vtkCamera.setFocusPoint()\u8bbe\u7f6e\uff0c\u9ed8\u8ba4\u7684\u7126\u70b9\u4f4d\u7f6e\u5728\u4e16\u754c\u5750\u6807\u7cfb\u7684\u539f\u70b9\u3002<\/p>\n\n\n\n
              \u671d\u4e0a\u65b9\u5411\uff1a\u5373\u54ea\u4e2a\u65b9\u5411\u4e3a\u76f8\u673a\u671d\u4e0a\u7684\u65b9\u5411\u3002\u5c31\u597d\u6bd4\u6211\u4eec\u76f4\u7acb\u770b\u4e1c\u897f\uff0c\u65b9\u5411\u4e3a\u5934\u671d\u4e0a\uff0c\u770b\u5230\u7684\u4e1c\u897f\u4e5f\u662f\u76f4\u7acb\u7684\uff0c\u5982\u679c\u6211\u4eec\u5012\u7acb\u770b\u67d0\u4e2a\u4e1c\u897f\uff0c\u8fd9\u65f6\u65b9\u5411\u4e3a\u5934\u671d\u4e0b\uff0c\u770b\u5230\u7684\u4e1c\u897f\u5f53\u7136\u5c31\u662f\u5012\u7acb\u7684\u3002\u76f8\u673a\u4f4d\u7f6e\u3001\u76f8\u673a\u7126\u70b9\u548c\u671d\u4e0a\u65b9\u5411\u4e09\u4e2a\u56e0\u7d20\u786e\u5b9a\u4e86\u76f8\u673a\u7684\u5b9e\u9645\u65b9\u5411\uff0c\u5373\u786e\u5b9a\u76f8\u673a\u7684\u89c6\u56fe\u3002<\/p>\n\n\n\n
              \u6295\u5f71\u65b9\u5411\uff1a\u76f8\u673a\u4f4d\u7f6e\u5230\u76f8\u673a\u7126\u70b9\u7684\u5411\u91cf\u65b9\u5411\u5373\u4e3a\u6295\u5f71\u65b9\u5411\u3002<\/p>\n\n\n\n
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              \"\"\/
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