General Program Information

Input Definitions

• p1 is a 3,1 matrix with the x,y,z values of the center of pipe 1.
• p2 is a 3,1 matrix with the x,y,z values of the center of pipe 2.
• p3 is a 3,1 matrix with the x,y,z values of the center of the far end of pipe 2.
• p4 is a 3,1 matrix specifying a point along the inner circumference of the first pipe.
• p5 is a 3,1 matrix specifying a point along the outer circumference of the first pipe.
• p6 is a 3,1 matrix specifying a point along the outer circumference of first pipe.
• p7 is a 3,1 matrix specifying a point along the outer circumference of the third pipe.
• p8 is a 3,1 matrix specifying a point along the inner circumference of the third pipe.
• p9 is a 3,1 matrix specifying a point along the circumference of the third point when viewed from viewfront.
• p10 is a 2,1 matrix specifying a point halfway up pipe 2 when viewed from viewfront.
• p11 is a 2,1 matrix specifying a point out in space. p10 and p11 form a mirror line allowing the third pipe to be mirrored 90 degrees clockwise.
• p12 is a 2,1 matrix specifying a point out in space on the same plane as the centerline of the second pipe. p1 and p12 form a mirror line allowing the third pipe to be mirrored around the centerline of the second pipe.
• p13 is a 3,1 matrix specifying a point on the fifth pipe.
• p14 is a 3,1 matrix specifying a point on the fourth pipe.
• p15 is a 3,1 matrix specifying a point on the third pipe.
• p16
• p17
• p18
• p19
• p20
• p21
• p22
• p23
• p24
• R1 is the inner radius of both pipes comprising the tee.
• R2 is the outer radius of both pipes comprising the tee.
• R3
• L is the length of the first pipe.
• H
• win1 is a 3,1 matrix with the x,y,z values specifying the coordinates for the first corner of the reference window that the tee will be drawn in.
• win2 is a 3,1 matrix with the x,y,z values specifying the coordinates for the second corner of the reference window that the tee will be drawn in.
• win3
• win4

Technical Program Outline

viewtop - sets the workspace so that the user is viewing the object from the top.

zoom _win - zooms the workspace to a smaller focus area

zoom _win1 - zooms the workspace to a still smaller focus area

cylinder1 - creates a cylinder that will form the inner wall of pipe 1.

cylinder2 - creates a cylinder that will form the inner wall of pipe 2.

union1 - unions the two cylinders.

cylinder3 - creates a cylinder that will form the outer wall of pipe 1.

cylinder4 - creates a cylinder that will form the outer wall of pipe 2.

subtract1 - subtracts cylinder 1 from cylinder 3 creating a hollow pipe.

subtract2 - subtracts cylinder 2 from cylinder 4 creating a hollow pipe.

cylinder5 - creates a cylinder that will form the outer wall of pipe 3.

cylinder6 - creates a cylinder that will form the inner wall of pipe 3.

subtract3 - subtracts cylinder 6 from cylinder 5 creating a hollow pipe.

viewfront - sets the workspace so that the user is viewing the object from the front.

mirror1 - mirrors the bottom pipe 90 degrees clockwise.

mirror2 - mirrors the bottom pipe 180 degrees.

bigunion1 - joins the third, forth and fifth pipes.

mirror3 -