Yes, I only need the exterior mold (shape) of the plane, with very few internal (structural) elements. It will be used (at 1/12th scale) for planning the manufacturing stations (sizes and locations) in the facility. Once that is firmed up, I have a partial full scale detailed version of the facility that I will modify and use.
I went to a scaled version because it is easier to navigate and change than at full scale, even if the full scale planning model was low-poly. There is very little detail in the scaled version, and a full scale version would entice me to add details.
I will try "polyreduce".
As for the footprint, I cannot figure how to set my geo to the equator at noon (time I figured). But you got me thinking about scaling the airplane model down flat i.e: 100% scale down the blue axis. Then I'll intersect it on a flat plane (no pun intended ) and trace that outline.
I'll get back to you on both.
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Well, scaling on blue to "flat" did not quite work. First, "scale" only allows a "-.11" scale factor so I tried ".01". It was not flat enough, even doing it twice. Also my dwg was too complex. Scrap that.
Still can't see how to set my Geo to the equator, so I can trace the shadow.
However, since I used to draw boats and calculate the heeled waterline, I tried something like that. I made a flat plane group, and successively moved it up and intersected the plane at various "wide" points on the airplane to get a close approximation of the outermost footprint, plus a myriad of extra lines from the airplanes internal structures that I could not turn off. Spent a lot of time deleting those lines, then hit the old SU 6 problem of non-intersected crossing lines, coupled with Intersects' bad habit of not keeping lines on face as well as omitting a lot of intersecting lines. A LOT of cleanup to do before I can get a cohesive footprint.
Back later....
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Frustrated!!!!!!
I cleaned up the outline, but it will not form a face within the outline. Many lines are just off the z=00000 level, so that the face won't form. Then as I was replacing 2 short lines with one, SU crashed.
Fortunately, SU autosaved just a few minutes prior so I lost almost nothing.
Back on this tomorrow, as I gotta pick up my "warden" at the subway.