// Author: Karl Ostmo
// Date: 2/13/2011
// Version: 1.0
//
// Based loosely on: http://trainathomeguru.com/home-gym/#trap
// Units are in inches
// Sky include obtained from:
// http://povray.tashcorp.net/library/sky_sphere/realskies.inc

#include "colors.inc"
#include "textures.inc"
#include "metals.inc"
#include "realskies.inc"
 
#declare camera_pos = 60;
#declare box_side = 22;
#declare half_box_side = box_side/2;

#declare plate_annulus_radius = 1.5;
#declare flange_radius = 1.5*plate_annulus_radius;
#declare bar_radius = plate_annulus_radius/2;
#declare flange_length = 2;
#declare flange_margin = flange_length;
#declare plate_extension_length = 1.5*half_box_side;
#declare grip_length = half_box_side/2;

#declare triangle_apex = 2*half_box_side;


camera {
	location <-camera_pos/5, -camera_pos, 3/4*camera_pos>*0.9
	look_at 0
}

plane {
	<0, 0, 1>, -flange_radius
	pigment {
		White
	}
}

light_source {
	<0, 0, 20*camera_pos>
	color 1.4*White
}

sky_sphere {
    sky_realsky_04
}

#declare half_shape = merge {

	merge {
		// Bottom side
		cylinder {
			<half_box_side, -half_box_side, 0>, <0, -half_box_side, 0>, bar_radius
		}

		// Right side (leaves a gap for the grip)
		cylinder {
			<half_box_side, -half_box_side, 0>, <half_box_side, -grip_length/2, 0>, bar_radius
		}

		cylinder {
			<half_box_side, half_box_side, 0>, <half_box_side, grip_length/2, 0>, bar_radius
		}


		// Top side
		cylinder {
			<half_box_side, half_box_side, 0>, <0, half_box_side, 0>, bar_radius
		}

		// Rounded joints
		sphere {
			<half_box_side, half_box_side, 0>, bar_radius
		}

		sphere {
			<half_box_side, -half_box_side, 0>, bar_radius
		}



		// Left triangle
		cylinder {
			<half_box_side, half_box_side, 0>, <triangle_apex, 0, 0>, bar_radius
		}

		cylinder {
			<half_box_side, -half_box_side, 0>, <triangle_apex, 0, 0>, bar_radius
		}

		// Weight plate extension
		cylinder {
			<triangle_apex, 0, 0>, <triangle_apex + plate_extension_length, 0, 0>, bar_radius
		}

		pigment {
			Gray45
		}
	}

	// Grip
	cylinder {
		<half_box_side, -grip_length/2, 0>, <half_box_side, grip_length/2, 0>, bar_radius

		pigment {
			Gray70
		}
	}

	merge {

		cylinder {
			<triangle_apex + flange_margin, 0, 0>, <triangle_apex + plate_extension_length, 0, 0>, plate_annulus_radius
		}

		// Flange
		cylinder {
			<triangle_apex + flange_margin, 0, 0>, <triangle_apex + flange_margin + flange_length, 0, 0>, flange_radius
		}


		texture {T_Silver_4E}
	}
}


merge {
	object{
		half_shape
		scale -1*x
	}

	object{ half_shape }
}