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General Program Information

Wiki Markup
{float:left|border=2px solid black}
!tank1.JPG!
Northeast Isometric View
{float}



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

Wiki Markup
{float:left|border=2px solid black}
!tank2.JPG!
{float}

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

    Wiki Markup
    {float:left|border=2px solid black}
    !tank5.JPG!
    Top View
    !tank3.JPG!
    Southwest Isometric View
    {float}
    box1 - Draws the smaller of the two boxes to create the tank

box1 <-- boxA(tankorigin,p1)

tankorigin : tankorigin

p1=

  • x : tank.origin0 - tank.dim0
  • y : tank.origin1 + tank.dim1
  • z : tank.origin2 + tank.dim2



Wiki Markup
{float:left|border=2px solid black}
!tank4.JPG!
Front View
!tank6.JPG!
Top View
!tank7.JPG!
Soutwest Isometric View
{float}

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



Wiki Markup
{float:left|border=2px solid black}
!tank1.JPG!
Northeast Isometric
{float}