General Program Information
[!1.bmp!]
Southeast Isometric View
Input Definitions
Inputs Needed to Call the Channel Function
channelorigin - a 3*1 matrix with x,y,z positions corresponding to the point where the channel will be drawn
channeldim - a 3*1 matrix with the x,y,z positions specifying the dimensions of the channel cutout
t - specifies the thickness of the channel walls
Inputs Defined within the Channel Function
p1 =
- x : channelorigin0
- y : channelorigin1
- z : channelorigin2
p2 =
- x : channelorigin0 + channeldim0
- y : channelorigin1 + channeldim1
- z : channelorigin2 + channeldim2
p3 =
- x : channelorigin0
- y : channelorigin1 - t
- z : channelorigin2 - t
p4 =
- x : channelorigin0 + channeldim0
- y : channelorigin1 + channeldim1 + t
- z : channelorigin2 channeldim2
p5 =
- x : channelorigin0
- y : channelorigin1 + channeldim1 + t
p6 =
- x : channelorigin0 - zc
- y : channelorigin1 - t - zc
p7 =
- x : channelorigin0 + channeldim0 + zc
- y : channelorigin1 + channeldim1 + t + zc
win1 =
- x : channelorigin0
- y : channelorigin1 - t
- z : channelorigin2
win2 =
- x : channelorigin0 + channeldim0
- y : channelorigin1 + channeldim1 + t
- z : channelorigin2
Technical Program Outline
[!2a.bmp!]
viewtop - sets the workspace so that the user is viewing the top of the object.
viewtop <-- viewtop
zoomwin- zooms on a window space directly around where the channel is to be drawn (as shown above - actual window size relative to channel that is to be drawn).
zoomwin <--zoom wina(win1, win2)
win1 =
- x : channelorigin0
- y : channelorigin1 - t
- z : channelorigin2
win2 =
- x : channelorigin0 + channeldim0
- y : channelorigin1 + channeldim1 + t
- z : channelorigin2
[!3.bmp!]
box1 - creates a box that will serve as the channel cutout.
box1 <-- boxA(p1,p2)
p1 =
- x : channelorigin0
- y : channelorigin1
- z : channelorigin2
p2 =
- x : channelorigin0 + channeldim0
- y : channelorigin1 + channeldim1
- z : channelorigin2 + channeldim2
[!4.bmp!]
[!4b.bmp!]
box2 - creates the outer box of the channel.
box2 <-- boxA(p3,p4)
p3 =
- x : channelorigin0
- y : channelorigin1 - t
- z : channelorigin2 - t
p4 =
- x : channelorigin0 + channeldim0
- y : channelorigin1 + channeldim1 + t
- z : channelorigin2 channeldim2
[!6.bmp!]
[!5.bmp!]
Southeast Isometric View, After Subtract
subtract1 - subtracts the inner box from the outer box to create a channel, using p5 to select the outer box as the object to be subtracted from, and p6 and p7 to draw a box that selects the inner box as the object to be subtracted.
subtract1 <-- subtractH(p5,p6,p7)
p5 =
- x : channelorigin0
- y : channelorigin1 + channeldim1 + t
p6 =
- x : channelorigin0 - zc
- y : channelorigin1 - t - zc
p7 =
- x : channelorigin0 + channeldim0 + zc
- y : channelorigin1 + channeldim1 + t + zc