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                                            "-children":[
                                              { "Shape":
                                                {
                                                  "-appearance":
                                                    { "Appearance":
                                                      {
                                                        "-material":
                                                          { "Material":
                                                            {
                                                              "@diffuseColor":[0.8,0.7,0.6]
                                                            }
                                                          }
                                                      }
                                                    },
                                                  "-geometry":
                                                    { "Cylinder":
                                                      {
                                                        "@height":0.7,
                                                        "@radius":0.09
                                                      }
                                                    }
                                                }
                                              }
                                            ]
                                          }
                                        }
                                      ]
                                    }
                                  }
                                ]
                              }
                            },
                            { "CylinderSensor":
                              {
                                "@DEF":"gun_sensor",
                                "@description":"sensor for gun elevation",
                                "@maxAngle":0.10,
                                "@minAngle":-0.10
                              }
                            },
                            { "ROUTE":
                              {
                                "@fromField":"rotation_changed",
                                "@fromNode":"gun_sensor",
                                "@toField":"set_rotation",
                                "@toNode":"Gun_Mantle"
                              }
                            }
                          ]
                        }
                      },
                      { "CylinderSensor":
                        {
                          "@DEF":"turret_sensor",
                          "@description":"sensor for turrent rotation",
                          "@maxAngle":2.355,
                          "@minAngle":-2.355
                        }
                      }
                    ]
                  }
                },
                { "ROUTE":
                  {
                    "@fromField":"rotation_changed",
                    "@fromNode":"turret_sensor",
                    "@toField":"set_rotation",
                    "@toNode":"TURRET"
                  }
                }
              ]
            }
          },
          { "Viewpoint":
            {
              "@description":"Entry view",
              "@orientation":[1,0,0,-0.37],
              "@position":[0,5,10]
            }
          },
          { "Viewpoint":
            {
              "@description":"Front",
              "@orientation":[0,1,0,-1.57],
              "@position":[-10,2,0]
            }
          },
          { "Transform":
            {
              "@rotation":[0,0,1,-0.785],
              "-children":[
                { "Viewpoint":
                  {
                    "@description":"Front High",
                    "@orientation":[0,1,0,-1.57],
                    "@position":[-12,2,0]
                  }
                }
              ]
            }
          },
          { "Viewpoint":
            {
              "@description":"left side",
              "@orientation":[0,1,0,-3.14],
              "@position":[0,2,-10]
            }
          },
          { "Viewpoint":
            {
              "@description":"rear",
              "@orientation":[0,1,0,1.57],
              "@position":[10,2,0]
            }
          },
          { "Viewpoint":
            {
              "@description":"top",
              "@orientation":[1,0,0,-1.57],
              "@position":[0,10,0]
            }
          }
        ]
    }
  }
}