General Program Information

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Southeast Isometric View
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Input Definitions

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Inputs Needed to Call the Channel Function

channel_origin - a 3

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*1 matrix with

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x,y,z

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positions corresponding to the point where the channel will be drawn
channel_dim - 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 : channel_origin0
• y : channel_origin1
• z : channel_origin2

p2 =

• x : channel_origin0 + channel_dim0
• y : channel_origin1 + channel_dim1
• z : channel_origin2 + channel_dim2

p3 =

• x : channel_origin0
• y : channel_origin1 - t
• z : channel_origin2 - t

p4 =

• x : channel_origin0 + channel_dim0
• y : channel_origin1 + channel_dim1 + t
• z : channel_origin2 channel_dim2

p5 =

• x : channel_origin0
• y : channel_origin1 + channel_dim1 + t

p6 =

• x : channel_origin0 - zc
• y : channel_origin1 - t - zc

p7 =

• x : channel_origin0 + channel_dim0 + zc
• y : channel_origin1 + channel_dim1 + t + zc

win1 =

• x : channel_origin0
• y : channel_origin1 - t
• z : channel_origin2

win2 =

• x : channel_origin0 + channel_dim0
• y : channel_origin1 + channel_dim1 + t
• z : channel_origin2
values for the upper right hand corner of the channel.
• p3 is a 3,1 matrix with the x,y,z values for the lower left hand corner of the channel cutout.
• p4 is a 3,1 matrix with the x,y,z values for the lower upper right hand corner of the channel cutout.
• p5 is a 2,1 matrix with the x,y values for a point on the outer edge of the channel viewed from viewtop.
• p6 is a 2,1 matrix with the x,y values for a point on the lower inner lip of the channel viewed from viewtop.
• p7 is a 2,1 matrix with the x,y values for a point on the upper inner lip of the channel viewed from viewtop.
• win1 is a 2,1 matrix with the x,y values for the lower left hand corner of the zoom window.
• win2 is a 2,1 matrix with the x,y values for the upper right hand corner of the zoom window.

Technical Program Outline

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

viewtop <-- viewtop

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Top View
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zoom_win- zooms the workspace to a smaller focus area.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).

zoom_win <--zoom _wina(win1, win2)

win1 =

• x : channel_origin0
• y : channel_origin1 - t
• z : channel_origin2

win2 =

• x : channel_origin0 + channel_dim0
• y : channel_origin1 + channel_dim1 + t
• z : channel_origin2

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Top View
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Southeast Isometric View
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box1 - creates a box that will serve as the channel cutout.

box1 <-- boxA(p1,p2)

p1 =

• x : channel_origin0
• y : channel_origin1
• z : channel_origin2

p2 =

• x : channel_origin0 + channel_dim0
• y : channel_origin1 + channel_dim1
• z : channel_origin2 + channel_dim2

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Top View
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Southeast Isometric View
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box2 - box1 - creates the outer box of the channel.

box2 - creates a second bow that will serve as the channel cutout.<-- boxA(p3,p4)

p3 =

• x : channel_origin0
• y : channel_origin1 - t
• z : channel_origin2 - t

p4 =

• x : channel_origin0 + channel_dim0
• y : channel_origin1 + channel_dim1 + t
• z : channel_origin2 channel_dim2

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Top View
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Southeast Isometric View, After Subtract
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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 : channel_origin0
• y : channel_origin1 + channel_dim1 + t

p6 =

• x : channel_origin0 - zc
• y : channel_origin1 - t - zc

p7 =

• x : channel_origin0 + channel_dim0 + zc
• y : channel_origin1 + channel_dim1 + t + zc