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.
rad_hole - the radius of the orifice hole

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 = rad_hole

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)

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

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

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

*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)

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