General Program Information
Northeast Isometric View
Input Definitions
Inputs needed to call the tank function
tankorigin - a 3 by 1 matrix with x,y,z positions corresponding to the point where the tank will be drawn
tankdim - a 3 by 1 matrix with x,y,z positions corresponding to the length, width and height dimensions of the tank
- x: tank.dim0 = length
- y: tank.dim1 = width
- z: tank.dim2 = height
thick - the thickness of the wall of the tank
Inputs defined with the tank function
p1=
- x : tank.origin0 - tank.dim0
- y : tank.origin1 + tank.dim1
- z : tank.origin2 + tank.dim2
p2=
- x : tank.origin0 + thick
- y : tank.origin1 - thick
- z : tank.origin2 - thick
p3=
- x : tank.origin0 - tank.dim0 - thick
- y : tank.origin1 + tank.dim1 + thick
- z : tank.origin2 + tank.dim2
win1=
- x : tank.origin0 + thick + zc
- y : tank.origin1 - thick - zc
- z : tank.origin2
win2=
- x : tank.origin0 - tank.dim0 - zc
- y : tank.origin1 + tank.dim1 + zc
- z : tank.origin2 + tank.dim2
Note: zc corresponds to a zoom constant used within Autocad. It is defined in the basics file.
Technical Program Outline
Note: All coordinates are referenced in top view in the program unless otherwise specified
zoomwin- zooms on a window space directly around where the tank is to be drawn
zoomwin <-- zoomwina(win1,win2)
win1=
- x : tank.origin0 + thick + zc
- y : tank.origin1 - thick - zc
- z : tank.origin2
win2=
- x : tank.origin0 - tank.dim0 - zc
- y : tank.origin1 + tank.dim1 + zc
- z : tank.origin2 + tank.dim2
Unknown macro: {float}box1 - Draws the smaller of the two boxes to create the tank
Top View
Southwest Isometric View
box1 <-- boxA(tankorigin,p1)
tankorigin : tankorigin
p1=
- x : tank.origin0 - tank.dim0
- y : tank.origin1 + tank.dim1
- z : tank.origin2 + tank.dim2
Front View
Top View
Soutwest Isometric View
box2 - Draws the larger of the two boxes to create the tank
box2 <-- boxA(p2,p3)
p2=
- x : tank.origin0 + thick
- y : tank.origin1 - thick
- z : tank.origin2 - thick
p3=
- x : tank.origin0 - tank.dim0 - thick
- y : tank.origin1 + tank.dim1 + thick
- z : tank.origin2 + tank.dim2
subtract - In order to create the hollow box, the inner box must be subtracted from the outer box. The subtract function selects tankorigin, on the edge of the inner box, to select the inner box as the piece to be subtracted. The subtract function then selects p2, on the edge of the outer box, to select the outer box to subtract from.
subtract <-- subtractD(p2,tankorigin)
p2=
- x : tank.origin0 + thick
- y : tank.origin1 - thick
- z : tank.origin2 - thick
tankorigin : tankorigin
Northeast Isometric