//  The Unicamp logo, without name
//  Last edited on 1999-10-08 19:21:10 by stolfi

//  Assumes defined the following things:

//    These are absolute:
//    logo_uc_gizmo_slice_min_Y      = min Y of pie slices
//    logo_uc_gizmo_slice_max_Y      = max Y of pie slices
//    logo_uc_gizmo_cut_width        = width of cuts
//    logo_uc_gizmo_ball_R           = radius of little balls
      
//    logo_uc_gizmo_slice_texture  = texture for the sliced-pie body
//    logo_uc_gizmo_ball_texture   = texture for the little balls
//    logo_uc_gizmo_edge_texture   = texture for the edges of the pie slices

//  Defines 
//    logo_uc_gizmo  = 
//      the whole logo, centered on the origin,
//      with X axis horizontal, Z axis vertical, and Y axis out of the page.

//     logo_uc_gizmo_min_X           = min X of whole logo (conservative)
//     logo_uc_gizmo_max_X           = max X of whole logo (conservative)
//     logo_uc_gizmo_min_Y           = min Y of whole logo (conservative)
//     logo_uc_gizmo_max_Y           = max Y of whole logo (conservative)
//     logo_uc_gizmo_min_Z           = min Z of whole logo (conservative)
//     logo_uc_gizmo_max_Z           = max Z of whole logo (conservative)

#declare logo_uc_gizmo_cut_R = logo_uc_gizmo_cut_width / 2;

#declare logo_uc_gizmo_outer_ellipse = 
  quadric{
    < +02.972651605, 0, +03.559985761 >,
    < 000.000000000, 0, 000.000000000 >,
    < 000.000000000, 0, -01.067995728 >,
    -00.9199003204
  }

// #declare logo_uc_gizmo_tan_x1 = +0.5747137168;
// #declare logo_uc_gizmo_tan_y1 = +0.2213937597;

// #declare logo_uc_gizmo_tan_x2 = +0.2618895276;
// #declare logo_uc_gizmo_tan_y2 = -0.3228946633;

#declare logo_uc_gizmo_corner =
  intersection{
    plane{ < +0.6687988996, 0, -0.7434433617 >, +0.4414072736 }
    plane{ < +0.9452189910, 0, +0.3264369139 >, +0.6238445342 }
  }

#declare logo_uc_gizmo_ellipse_clipper = 
  plane{ < +0.9648984532, 0, -0.2626232563>, +0.4524123293 }
  
#declare logo_uc_gizmo_corner_clipper = 
  plane{ < -0.9648984532, 0, +0.2626232563>, -0.4524123293 }
  
#declare logo_uc_gizmo_center_hole = 
  quadric{
    < +25.00000000, 0, +25.00000000 >,
    < 000.00000000, 0, 000.00000000 >,
    < 000.00000000, 0, 000.00000000 >,
    -01.000000000
  }
  
#declare logo_uc_gizmo_corner_hole_R = 
  logo_uc_gizmo_ball_R + logo_uc_gizmo_cut_width;

#declare logo_uc_gizmo_corner_hole = 
  quadric{
    < +1.0, 0, +1.0 >, < 00.0, 0, 00.0 >, < 00.0, 0, 00.0 >,  -1.0
    scale < logo_uc_gizmo_corner_hole_R, 1, logo_uc_gizmo_corner_hole_R >
  }

#declare logo_uc_gizmo_ball_1_x = +0.1499386233;
#declare logo_uc_gizmo_ball_1_z = -0.3619838578;
                       
#declare logo_uc_gizmo_ball_2_x = +0.6600000000;
#declare logo_uc_gizmo_ball_2_z = 00.0000000000;
                       
#declare logo_uc_gizmo_ball_3_x = +0.2586307598;
#declare logo_uc_gizmo_ball_3_z = +0.6243898877;

#declare logo_uc_gizmo_basic_tube =
  difference{
    merge{
      object{ 
        logo_uc_gizmo_outer_ellipse 
        clipped_by{ object{ logo_uc_gizmo_ellipse_clipper } }
      }
      object{
        logo_uc_gizmo_corner
        clipped_by{ object{logo_uc_gizmo_corner_clipper} }
      }
    }
    union{
      object{ logo_uc_gizmo_center_hole }
      object{ logo_uc_gizmo_corner_hole 
        translate < logo_uc_gizmo_ball_1_x, 0, logo_uc_gizmo_ball_1_z >
      }
      object{ logo_uc_gizmo_corner_hole 
        translate < logo_uc_gizmo_ball_2_x, 0, logo_uc_gizmo_ball_2_z >
      }
      object{ logo_uc_gizmo_corner_hole 
        translate < logo_uc_gizmo_ball_3_x, 0, logo_uc_gizmo_ball_3_z >
      }
    }
  }

#declare logo_uc_gizmo_cut_plane_1p =
  plane { < +1.0000000000, 0, 00.0000000000 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_1m =
  plane { < -1.0000000000, 0, 00.0000000000 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_2p =
  plane { < +0.9238795325, 0, +0.3826834325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_2m =
  plane { < -0.9238795325, 0, -0.3826834325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_3p =
  plane { < +0.7071067810, 0, +0.7071067810 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_3m =
  plane { < -0.7071067810, 0, -0.7071067810 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_4p =
  plane { < +0.3826834325, 0, +0.9238795325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_4m =
  plane { < -0.3826834325, 0, -0.9238795325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_5p =
  plane { < 00.0000000000, 0, +1.0000000000 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_5m =
  plane { < 00.0000000000, 0, -1.0000000000 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_6p =
  plane { < -0.3826834325, 0, +0.9238795325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_6m =
  plane { < +0.3826834325, 0, -0.9238795325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_7p =
  plane { < -0.7071067810, 0, +0.7071067810 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_7m =
  plane { < +0.7071067810, 0, -0.7071067810 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_8p =
  plane { < -0.9238795325, 0, +0.3826834325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_cut_plane_8m =
  plane { < +0.9238795325, 0, -0.3826834325 >, -logo_uc_gizmo_cut_R }
  
#declare logo_uc_gizmo_basic_slice_01 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_1p }
    object{ logo_uc_gizmo_cut_plane_2m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_02 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_2p }
    object{ logo_uc_gizmo_cut_plane_3m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_03 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_3p }
    object{ logo_uc_gizmo_cut_plane_4m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_04 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_4p }
    object{ logo_uc_gizmo_cut_plane_5m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_05 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_5p }
    object{ logo_uc_gizmo_cut_plane_6m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_06 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_6p }
    object{ logo_uc_gizmo_cut_plane_7m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_07 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_7p }
    object{ logo_uc_gizmo_cut_plane_2p }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_08 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_2m }
    object{ logo_uc_gizmo_cut_plane_3p }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_09 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_3m }
    object{ logo_uc_gizmo_cut_plane_5p }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_10 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_5m }
    object{ logo_uc_gizmo_cut_plane_6p }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_11 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_6m }
    object{ logo_uc_gizmo_cut_plane_7p }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_12 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_7m }
    object{ logo_uc_gizmo_cut_plane_8p }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_basic_slice_13 =
  intersection{
    object{ logo_uc_gizmo_basic_tube }
    object{ logo_uc_gizmo_cut_plane_8m }
    object{ logo_uc_gizmo_cut_plane_1m }
    texture{ logo_uc_gizmo_edge_texture }
  }

#declare logo_uc_gizmo_Y_clipper =
  intersection{
    plane{ < 0, +1, 0 >, +logo_uc_gizmo_slice_max_Y }
    plane{ < 0, -1, 0 >, -logo_uc_gizmo_slice_min_Y }
    texture{ logo_uc_gizmo_slice_texture }
  }

#declare logo_uc_gizmo_slice_01 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_01 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.30, logo_uc_gizmo_slice_min_Y-0.01, +0.15 >,
      < 00.00, logo_uc_gizmo_slice_max_Y+0.01, +0.70 >
    } }
  }

#declare logo_uc_gizmo_slice_02 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_02 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.47, logo_uc_gizmo_slice_min_Y-0.01, +0.10 >,
      < -0.07, logo_uc_gizmo_slice_max_Y+0.01, +0.65 >
    } }
  }

#declare logo_uc_gizmo_slice_03 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_03 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.58, logo_uc_gizmo_slice_min_Y-0.01, +0.05 >,
      < -0.12, logo_uc_gizmo_slice_max_Y+0.01, +0.47 >
    } }
  }

#declare logo_uc_gizmo_slice_04 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_04 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.60, logo_uc_gizmo_slice_min_Y-0.01, 00.00 >,
      < -0.17, logo_uc_gizmo_slice_max_Y+0.01, +0.25 >
    } }
  }

#declare logo_uc_gizmo_slice_05 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_05 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.58, logo_uc_gizmo_slice_min_Y-0.01, -0.20 >,
      < -0.17, logo_uc_gizmo_slice_max_Y+0.01, 00.00 >
    } }
  }

#declare logo_uc_gizmo_slice_06 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_06 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.48, logo_uc_gizmo_slice_min_Y-0.01, -0.35 >,
      < -0.12, logo_uc_gizmo_slice_max_Y+0.01, -0.08 >
    } }
  }

#declare logo_uc_gizmo_slice_07 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_07 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < -0.33, logo_uc_gizmo_slice_min_Y-0.01, -0.42 >,
      < +0.18, logo_uc_gizmo_slice_max_Y+0.01, -0.12 >
    } }
  }

#declare logo_uc_gizmo_slice_08 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_08 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < +0.05, logo_uc_gizmo_slice_min_Y-0.01, -0.40 >,
      < +0.33, logo_uc_gizmo_slice_max_Y+0.01, -0.12 >
    } }
  }

#declare logo_uc_gizmo_slice_09 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_09 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < +0.12, logo_uc_gizmo_slice_min_Y-0.01, -0.33 >,
      < +0.70, logo_uc_gizmo_slice_max_Y+0.01, 00.00 >
    } }
  }

#declare logo_uc_gizmo_slice_10 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_10 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < +0.17, logo_uc_gizmo_slice_min_Y-0.01, 00.00 >,
      < +0.70, logo_uc_gizmo_slice_max_Y+0.01, +0.25 >
    } }
  }

#declare logo_uc_gizmo_slice_11 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_11 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < +0.12, logo_uc_gizmo_slice_min_Y-0.01, +0.05 >,
      < +0.60, logo_uc_gizmo_slice_max_Y+0.01, +0.47 >
    } }
  }

#declare logo_uc_gizmo_slice_12 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_12 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < +0.07, logo_uc_gizmo_slice_min_Y-0.01, +0.12 >,
      < +0.47, logo_uc_gizmo_slice_max_Y+0.01, +0.65 >
    } }
  }

#declare logo_uc_gizmo_slice_13 =
  intersection{
    object{ logo_uc_gizmo_basic_slice_13 }
    object{ logo_uc_gizmo_Y_clipper }
    bounded_by{ box{
      < 00.00, logo_uc_gizmo_slice_min_Y-0.01, +0.17 >,
      < +0.27, logo_uc_gizmo_slice_max_Y+0.01, +0.68 >
    } }
  }

#declare logo_uc_gizmo_ball = 
  sphere{ < 0, 0, 0 >, logo_uc_gizmo_ball_R 
    texture{ logo_uc_gizmo_ball_texture }
    bounded_by{ box{
      < -logo_uc_gizmo_ball_R, -logo_uc_gizmo_ball_R, -logo_uc_gizmo_ball_R >,
      < +logo_uc_gizmo_ball_R, +logo_uc_gizmo_ball_R, +logo_uc_gizmo_ball_R >
      scale 1.001
    } }
  }
  
#declare logo_uc_gizmo_min_X = -0.70;
#declare logo_uc_gizmo_max_X = +0.65 + logo_uc_gizmo_ball_R;
#declare logo_uc_gizmo_min_Y = logo_uc_gizmo_slice_min_Y - logo_uc_gizmo_ball_R;
#declare logo_uc_gizmo_max_Y = logo_uc_gizmo_slice_max_Y + logo_uc_gizmo_ball_R;
#declare logo_uc_gizmo_min_Z = -0.55 - logo_uc_gizmo_ball_R;
#declare logo_uc_gizmo_max_Z = +0.55 + logo_uc_gizmo_ball_R;

#declare logo_uc_gizmo =
  union{
    object{ logo_uc_gizmo_slice_01 }
    object{ logo_uc_gizmo_slice_02 }
    object{ logo_uc_gizmo_slice_03 }
    object{ logo_uc_gizmo_slice_04 }
    object{ logo_uc_gizmo_slice_05 }
    object{ logo_uc_gizmo_slice_06 }
    object{ logo_uc_gizmo_slice_07 }
    object{ logo_uc_gizmo_slice_08 }
    object{ logo_uc_gizmo_slice_09 }
    object{ logo_uc_gizmo_slice_10 }
    object{ logo_uc_gizmo_slice_11 }
    object{ logo_uc_gizmo_slice_12 }
    object{ logo_uc_gizmo_slice_13 }
    object{ logo_uc_gizmo_ball translate < logo_uc_gizmo_ball_1_x, 0, logo_uc_gizmo_ball_1_z > }
    object{ logo_uc_gizmo_ball translate < logo_uc_gizmo_ball_2_x, 0, logo_uc_gizmo_ball_2_z > }
    object{ logo_uc_gizmo_ball translate < logo_uc_gizmo_ball_3_x, 0, logo_uc_gizmo_ball_3_z > }
    
    translate < -0.05, 0, -0.15 >
    bounded_by{ box{
      < logo_uc_gizmo_min_X, logo_uc_gizmo_min_Y, logo_uc_gizmo_min_Z >,
      < logo_uc_gizmo_max_X, logo_uc_gizmo_max_Y, logo_uc_gizmo_max_Z > 
    } }
  }