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[!1.bmp|width=280px!|AutoCAD Sedimentation Tank Inlet Slopes Program][!1b.bmp|width=280px!|AutoCAD Sedimentation Tank Inlet Slopes Program]
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h3. Input Definitions

h5. Inputs Needed to Call the Inlet Slope Trapezoid Function

origin - A 3*1 matrix with x,y,z positions corresponding to the point where the inlet slope will be drawn.

Length - length of the slopes, generally the length of the sedimentation tank

W{~}Sed~ - width of the sedimentation tank

l{~}orifice~ - length of the opening that will allow inlet flow

h{~}orifice~ - height of the opening that will allow inlet flow

b{~}orifice~ - 

thick - thickness of the slopes

n - number of orifices and sections, one section contains one orifice

bigslope - slope of the inlet in degrees

little slope - 

H{~}Trapezoid~ - 

h5. Inputs Defined within the Inlet Slope Trapezoid Function

verticalorigin = 
* x: origin{~}0~
* y: origin{~}1~ - b{~}orifice~ - thick
* z: origin{~}2~

verticaldim =
* x: length/n
* y: thick
* z: H{~}Trapezoid~ + thick*cos(bigslope)

slopeorigin = 
* x: origin{~}0~
* y: origin{~}1~ - b{~}orifice~ - thick
* z: origin{~}2~ + H{~}Trapezoid~ + thick*cos(bigslope)

dim =
* x: length/n
* y: thick
* z: (W{~}Sed~/2 -b{~}orifice~)*(1/cos(bigslope))

verticalorigin{~}dim~ = verticalorigin + verticaldim

box{~}dim~ = slopeorigin + dim

sideorigin = 
* x: slopeorigin{~}1~ + thick
* y: slopeorigin{~}2~ + dim{~}2~
* z: slopeorigin{~}0~

sideoriginrotate = 
* x: slopeorigin{~}1~ + thick
* y: slopeorigin{~}2~ 
* z: slopeorigin{~}0~

orifice{~}origin~ = 
* x: verticalorigin{~}0~ + verticaldim{~}0~/2 - l{~}orifice~/2
* y: verticalorigin{~}1~
* z: verticalorigin{~}2~

orifice{~}dim~ =
* x: verticalorigin{~}0~ + verticaldim{~}0~/2 + l{~}orifice~/2
* y: verticalorigin{~}1~ + verticaldim{~}1~
* z: verticalorigin{~}2~ + h{~}orifice~ + (b{~}orifice~*tan(littleslope))

nrow = l

ncol = n

dist = length/2

mirror{~}point1~ =
* x: origin{~}0~
* y: origin{~}1~

mirror{~}point2~ =
* x: origin{~}0~ + zc
* y: origin{~}1~

win1 =
* x: origin{~}0~ - zc
* y: origin{~}1~ - zc
* z: origin{~}2~ - zc

win2 =
* x: origin{~}0~ + dim{~}0~ - zc
* y: origin{~}1~ + dim{~}1~ - zc
* z: origin{~}2~ + dim{~}2~ - zc

h3. Technical Program Outline

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

viewtop <-- viewtop1

*zoomwin* - zooms on a window space directly around where the inlet slope is to be drawn.

zoomwin <-- zoom{~}win~(win1, win2)

win1 =
* x: origin{~}0~ - zc
* y: origin{~}1~ - zc
* z: origin{~}2~ - zc

win2 =
* x: origin{~}0~ + dim{~}0~ - zc
* y: origin{~}1~ + dim{~}1~ - zc
* z: origin{~}2~ + dim{~}2~ - zc

*verticalbox* -

verticalbox <-- box(verticalorigin, verticalorigin{~}dim~)

verticalorigin = 
* x: origin{~}0~
* y: origin{~}1~ - b{~}orifice~ - thick
* z: origin{~}2~

verticaldim =
* x: length/n
* y: thick
* z: H{~}Trapezoid~ + thick*cos(bigslope)

*bigslopebox* - 

bigslopebox <-- box(slopeorigin, box{~}dim~)

slopeorigin = 
* x: origin{~}0~
* y: origin{~}1~ - b{~}orifice~ - thick
* z: origin{~}2~ + H{~}Trapezoid~ + thick*cos(bigslope)

box{~}dim~ = slopeorigin + dim

*sideview* - 

sideview <-- viewrightside1

*rotate* - 

rotate <-- rotate{~}3d~(sideorigin, sideoriginrotate, "z", 90 - bigslope*(180/pi))

sideorigin = 
* x: slopeorigin{~}1~ + thick
* y: slopeorigin{~}2~ + dim{~}2~
* z: slopeorigin{~}0~

sideoriginrotate = 
* x: slopeorigin{~}1~ + thick
* y: slopeorigin{~}2~ 
* z: slopeorigin{~}0~

"z" = 

90 - bigslope*(180/pi) =

*orificebox* -

orificebox <-- box(orifice{~}origin~, orifice{~}dim~)

orifice{~}origin~ = 
* x: verticalorigin{~}0~ + verticaldim{~}0~/2 - l{~}orifice~/2
* y: verticalorigin{~}1~
* z: verticalorigin{~}2~

orifice{~}dim~ =
* x: verticalorigin{~}0~ + verticaldim{~}0~/2 + l{~}orifice~/2
* y: verticalorigin{~}1~ + verticaldim{~}1~
* z: verticalorigin{~}2~ + h{~}orifice~ + (b{~}orifice~*tan(littleslope))

*subtractorifice* - subtracts orificebox to create an orifice, using the verticalorigin to select orificebox as the object to be subtracted.
subtractorifice <-- subtractDall(verticalorigin)

verticalorigin = 
* x: origin{~}0~
* y: origin{~}1~ - b{~}orifice~ - thick
* z: origin{~}2~

*array* - creates an array to replicate the slab n times, by using the origin to select the slab as the item to put into an array, then specifies that a rectangular array with one row and "n" columns with a displacement of "dist" is to be used to place the slabs one next to the other.

array <-- arrayB(verticalorigin, nrow, ncol, dist)

verticalorigin = 
* x: origin{~}0~
* y: origin{~}1~ - b{~}orifice~ - thick
* z: origin{~}2~


nrow = l

ncol = n

dist = length/2

*union* - Unites all the individual components of the inlet slope to act as a single unit

union <-- union{~}allA~

*mirror* - replicates the original inlet slope drawn by selecting the original inlet slope using the origin, then reflecting it over a mirror line created using mirror{~}point1~ and mirror{~}point2~.

mirror <-- mirror{~}all~(mirror{~}point1~, mirror{~}point2~)

win1 =
* x: origin{~}0~ - zc
* y: origin{~}1~ - zc
* z: origin{~}2~ - zc

win2 =
* x: origin{~}0~ + dim{~}0~ - zc
* y: origin{~}1~ + dim{~}1~ - zc
* z: origin{~}2~ + dim{~}2~ - zc

*bigunion* -

bigunion <--union{~}allA~