General Program Information

Inputs Needed to Call the Manifold Function

manifold_origin - a 3 by 1 matrix with x,y,z positions corresponding to the point where the manifold will be drawn
ND_Manifold - the nominal diameter of the manifold pipe - from this we can find the actual inner diameter and actual outer diameter of the pipe based on the schedule of pipe being used.
orifice_rad - the radius of the orifice hole
tank_length - the length of the tank
orifice_dist - the distance between successive orifices
EN_PipeSpec - an enumerated pipe schedule which specifies a number which corresponds to a pipe schedule that states the amount of water pressure the pipe can handle before it fails. The pipe schedule affects the inner and outer diameter of the pipe.

Inputs Found in the Pipe Database Function

manifold_inr is the radius of the inner cylinder defined by innerD(ND_Manifold,EN_PipeSpec)/2
manifold_outr is the radius of the outer cylinder defined by outerradius(ND_Manifold)

Inputs Defined Within the Manifold Function

p1 = manifold_origin

p2 =

• x = manifold.origin₀
• y = manifold.origin₁
• z = manifold.origin₂ + tank_length - orifice_dist

p3 =

• x = manifold.origin₀
• y = manifold.origin₁ - manifold_outr

p4 =

• x = manifold.origin₀ + manifold_outr*cos(pi/6) + manifold_outr
• y = manifold.origin₁ + manifold_outr*sin(pi/6) + manifold_outr
• z = manifold.origin₂ + tank_length - orifice_dist

p5 =

• x = manifold.origin₁ + manifold_outr*sin(pi/6) + manifold_outr
• y = manifold.origin₂ + tank_length - orifice_dist

p6 =

• x = manifold.origin₀
• y = manifold.origin₁

p7 =

• x = manifold.origin₀ + manifold_outr*cos(pi/3) + 2zc
• y = manifold.origin₀ + manifold_outr*sin(pi/3) + 2zc

ND = ND_Manifold

R3 = orifice_rad

L = tank_length

n1 = floor(tank_length/orifice_dist)

n2 = 1

d1 = orifice_dist

win1 =

• x = manifold.origin₀ - manifold_outr
• y = manifold.origin₁ - manifold_outr
• z = manifold.origin₂

win2 =

• x = manifold.origin₀ + manifold_outr + zc
• y = manifold.origin₁ + manifold_outr + zc
• z = manifold.origin₂

EN = EN_PipeSpec

Note: zc corresponds to the zoom constant used within AutoCAD and created in the basics file that is referenced by the pipe program.

Technical Program Outline

Note: All coordinates are referenced in top view in the program unless otherwise specified.

The Manifold program is build on the Sludge Pipe Program.

sludgepipe - creates a sludge pipe
sludgepipe <-- sludgepipe(p1,ND,L,R3,d1,EN)

p1 = manifold_origin

ND = ND_Manifold

R3 = orifice_rad

L = tank_length

d1 = orifice_dist

EN = EN_PipeSpec

viewtop - shows an object in top view within AutoCAD
viewtop <-- viewtop

zoom_win - zooms on a window space
zoom_win <-- zoom_win(win1,win2)

win1 =

• x = manifold.origin₀ - manifold_outr
• y = manifold.origin₁ - manifold_outr
• z = manifold.origin₂

win2 =

• x = manifold.origin₀ + manifold_outr + zc
• y = manifold.origin₁ + manifold_outr + zc
• z = manifold.origin₂

cylinder3 - is to draw a cylinder for orifice purpose
cylinder3 <-- cylinderB(p2,R3,p4)

p2 =

• x = manifold.origin₀
• y = manifold.origin₁
• z = manifold.origin₂ + tank_length - orifice_dist

p4 =

• x = manifold.origin₀ + manifold_outr*cos(pi/6) + manifold_outr
• y = manifold.origin₁ + manifold_outr*sin(pi/6) + manifold_outr
• z = manifold.origin₂ + tank_length - orifice_dist

R3 = orifice_rad

viewrightside - change view to viewrightside
viewrightside <-- viewrightside

array1 - draw starting at point p5, n1 -- as many rows as the tank length/orifice dist, n2 - 1 and provide orifice distance as the next draw point for the cylinder
array1 <-- arrayB(p5,n1,n2,-d1)

p5 =

• x = manifold.origin₁ + manifold_outr*sin(pi/6) + manifold_outr
• y = manifold.origin₂ + tank_length - orifice_dist

n1 = floor(tank_length/orifice_dist)

n2 = 1

d1 = orifice_dist

subtract1 - subtract unneeded portion of the cylinders
subtract1 <-- subtractH(p3,p7,p6)

p3 =

• x = manifold.origin₀
• y = manifold.origin₁ - manifold_outr

p6 =

• x = manifold.origin₀
• y = manifold.origin₁

p7 =

• x = manifold.origin₀ + manifold_outr*cos(pi/3) + 2zc
• y = manifold.origin₀ + manifold_outr*sin(pi/3) + 2zc