Depth-Width Curve Type
Depth-Width Curve storage chambers are defined by a curve with three values:
- Depth - The depth of the chamber at that point in the curve.
- Inner Width - The internal width of the storage chamber.
- Outer Width - The width of the entire structure at that point in the curve.
Take the following example assuming an install length 10 ft
There are a few things to note:
- The inner polygon is defined by the first non zero number and the last non zero number. If you notice at depth 3 the inner width is 0 which implies that the previous inner width is the top of the internal storage structure.
- If you make an outer width that is less than or equal to the inner width it is assumed that the outer width equals the inner width.
- You can only have one open internal opening; i.e the inner width can't go to 0 as the depth increases and then opens up again.
- If you want the inner width to converge to 0 you have to put in a very small number as opposed to 0.
The total storage volume of the above chamber is just the summation of the inner trapezoidal areas multiplied by the install length:
[0.5*(6+4)*1 + 0.5(4+2)*1)*10 = 30
The total spatial volume is the sum of the outer trapezoidal areas multiplied by the install length:
[0.5*(8+6)*1 + 0.5(6+4)*1 +0.5(4+2)* 1)*10 = 160
You can also do more complex shapes, giving a bottom to the structure like: