Dumbbell.cpp

This example generates the surface figure dumb-bell with usage of the debug mode

// This example generates the surface figure dumb-bell with usage of the debug mode
#include <CoreAPI.h>
//@config: Debug
using namespace coat;
EXPORT
int main() {
    // get to sculpt room
    ui::toRoom("Sculpt");
    // add new volume
    auto voxId = Scene::sculptRoot().childCount();
    auto current = Scene::sculptRoot().addChild("Dumbbell" + str::ToString(voxId));
    auto volume = current.Volume();
    // debug mode is ON
    prim::debug_on(true);
    // turn to surface
    volume.toSurface();
    
    float _height = 80;
    float _radius = 8; 
    float _rotate = 90;
    float _fscale = 4;
    float _detail = 0.5;
    
    float _shift_R = _height/2 + _height/8;
    float _shift_L = _height/2 - _height/8;
    
    // matrix transform
    mat4 matrix = mat4::Scaling(_fscale) * mat4::RotationZ(_rotate) * mat4::RotationX(_rotate);
    //add the core figure
    cylinder().height(_height)
              .radius(_radius)
              .transform(matrix)
              .translate(vec3(_fscale*_height/2, 0, 0))
              .details(_detail)
              .name("core")
              .add(volume);
    //add the first disk 
    ngon().relativeHoleRadius(0)
          .height(_height/4)
          .radius(_radius*3)
          .fillet(2)
          .transform(matrix)
          .translate(vec3(_fscale*_shift_R, 0, 0))
          .details(_detail)
          .name("disk1")
          .add(volume);
    //add the second disk 
    ngon().relativeHoleRadius(0)
          .height(_height/4)
          .radius(_radius*3)
          .fillet(2)
          .transform(matrix)
          .translate(vec3(-_fscale*_shift_L, 0, 0))
          .details(_detail)
          .name("disk2")
          .add(volume);  
    // make the text on the top disk
    matrix = mat4::Scaling(_fscale) * mat4::RotationY(-_rotate);          
    text().font(coat::Font()).string("2 KG").width(2.5*_radius).depth(1)
          .transform(matrix).translate(vec3(-_fscale*_shift_R, 0, 0))
          .add(volume);
    // debug mode is OFF
    prim::debug_on(false);
    return 0;
}