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<br clear=all />
 
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  mged> make ramp_arb arb6
 
  mged> make ramp_arb arb6
 
  mged> facetize -n ramp_nmg ramp_arb
 
  mged> facetize -n ramp_nmg ramp_arb
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argument to "put" should be the name of the new object.  For example,
 
argument to "put" should be the name of the new object.  For example,
 
to create a similar ramp structure named "ramp_nmg2" but with
 
to create a similar ramp structure named "ramp_nmg2" but with
different coordinates, you'd do this (it appears that the vertices must be specified in clockwise viewed from the outside order within each loop; otherwise, mged crashes):
+
different coordinates, you'd do this:
 
 
<code>
 
mged> put ramp_nmg2 nmg V { { 0 0 0 } { 1 0 0 } { 0 1 0 } { 1 1 0 } { 0 1 1 } { 1 1 1} } F { { 0 2 3 1 } } F { { 3 2 4 5 } } F { { 0 1 5 4 } } F { { 0 4 2 } } F { { 1 3 5 } }
 
</code>
 
 
 
As a slightly more complex example, consider making a box.  The box should have a vertex V for each of its corners, so the V-list should look like <code>{ { 0 0 0 } { 0 1 0 } { 1 1 0 } { 1 0 0 } { 1 0 1 } { 0 0 1 } { 0 1 1 } { 1 1 1 } }</code>.  It should have six faces, one for each face of the cube, but these faces are simple ones with only one loop, since none of the faces have holes.  The bottom face is composed of <code>{ { 0 1 2 3 } }</code>, the top one of <code>{ { 4 5 6 7 } }</code>, and the sides are given by <code>{ { 0 1 6 7 } }</code>, <code>{ { 1 2 5 6 } }</code>, <code>{ { 2 3 4 5 } }</code>, and <code>{ { 3 0 7 4 } }</code>; this means that the final command to create it is:
 
 
 
<code>
 
mged> put box_nmg nmg V { { 0 0 0 } { 0 1 0 } { 1 1 0 } { 1 0 0 } { 1 0 1 } { 0 0 1 } { 0 1 1 } { 1 1 1 } } F { { 0 1 2 3 } } F { { 4 5 6 7 } } F { { 0 1 6 5 } } F { { 1 2 7 6 } } F { { 2 3 4 7 } } F { { 0 5 4 3 } }
 
</code>
 
 
 
This yields the following object: (an MGED wireframe, from the az35,el25 view setting):
 
[[File:nmg-wiki-tutorial-box-mged-screenshot.png|none|1024px|The MGED wireframe of the box from az35,el25]]
 
 
 
Another more complex example is to create a box with a hole through it.  Much of the command is the same as the one above for creating a plain box; the first thing to do is to add the necessary vertices to the <code>V</code> list.  For the lower face, <code>{ 0.25 0.25 0 }</code>, <code>{ 0.75 0.25 0 }</code>, <code>{ 0.75 0.75 0 }</code>, and <code>{ 0.25 0.75 0 }</code> are the necessary vertices; for the upper face, these are <code>{ 0.25 0.25 1 }</code>, <code>{ 0.25 0.75 1 }</code>, <code>{ 0.75 0.75 1 }</code>, <code>{ 0.75 0.25 1 }</code>.  Changing the first two face statements from above to <code>F { { 0 1 2 3 } { 8 9 10 11 } } F { { 4 5 6 7 } { 12 13 14 15 } }</code> makes the faces have the necessary cutouts.  Four faces must be added to form the sides of the hole through the box; these are <code>F { { 8 12 13 11 } }</code>, <code>F { { 11 13 14 10 } }</code>, <code>F { { 10 14 15 9 } }</code>, and <code>F { { 12 8 9 15 } }</code>.  The final command with all of this is:
 
 
 
<code>
 
mged> put box_with_hole_nmg nmg V { { 0 0 0 } { 0 1 0 } { 1 1 0 } { 1 0 0 } { 1 0 1 } { 0 0 1 } { 0 1 1 } { 1 1 1 } { 0.25 0.25 0 } { 0.75 0.25 0 } { 0.75 0.75 0 } { 0.25 0.75 0 } { 0.25 0.25 1 } { 0.25 0.75 1 } { 0.75 0.75 1 } { 0.75 0.25 1 } } F { { 0 1 2 3 } { 8 9 10 11 } } F { { 4 5 6 7 } { 12 13 14 15 } } F { { 0 1 6 5 } } F { { 1 2 7 6 } } F { { 2 3 4 7 } } F { { 0 5 4 3 } } F { { 8 12 13 11 } } F { { 11 13 14 10 } } F { { 10 14 15 9 } } F { { 9 15 12 8 } }
 
</code>
 
  
This produces the following wireframe when drawn in MGED using the az35,el25 view setting:
+
mged> put ramp_nmg2 nmg V { { 0 0 0 } { 1 0 0 } { 0 1 0 } { 1 1 0 } { 0 1 1 } { 1 1 1} } F { { 0 1 2 3 } } F { { 3 2 4 5 } } F { { 0 1 5 4 } } F { { 0 2 4 } } F { { 1 3 5 } }
[[File:nmg-wiki-tutorial-box-with-hole-mged-screenshot.png|none|1024px|The MGED wireframe of the box with a hole from az35,el25]]
 

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