...

o - the origin, a 3*1 matrix with x,y,z positions corresponding to the point where the elbow will be drawn
Pipe_inr - the inner radius of the elbow

Inputs Defined within the

...

Elbow Function

p1 =

• x : o₀
• y : o₁
• z : o₂

p2 =

...

Note: zc corresponds to the zoom constant within AutoCAD and can be found in the basics file that is referenced by the tank elbow program.

Technical Program Outline

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

Image Added

zoom_win- zooms on a window space directly around where the elbow is to be drawn

zoom_win <-- zoom_wina(win1,win2)

win1 =

• x : o₀ - ElbowRadius(2*pipe_inr) - ConRaduis(2*pipe_inr) + zc
• y : o₁ - ElbowRadius(2*pipe_inr) - ConRaduis(2*pipe_inr) + zc
• z : o₂

win2 =

• x : o₀ + ElbowRadius(2*pipe_inr) + ConRaduis(2*pipe_inr) + zc
• y : o₁ + ElbowRadius(2*pipe_inr) + ConRaduis(2*pipe_inr) + zc
• z : o₂