Subject:
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Re: New Part in progress - Baseplate 32 x 32 with Craters
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Newsgroups:
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lugnet.cad.dat.parts
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Date:
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Fri, 9 Aug 2002 08:28:17 GMT
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Viewed:
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4915 times
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In lugnet.cad.dat.parts, Willy Tschager writes:
> 1.. take a pencil and draw lines around your model. the distance in height is the height of a plate (sorry about my poor english.
> I hope you get it at least.)
> 2.. take a picture from above. use a long lens (120 mm or longer) to eliminate any perspective distortion. (take also pictures
> from the sides to check the final shape in the sideviews).
> 3.. scan it (yes, I used an old-fashion camera, due to the poor resolution of my digicam). the scan was 6000 x 4000 pixel.
> 4.. use a software like illustrator, freehand to get paths of the altitude lines and convert it to dxf, 3ds, lwo ... or import the
> picture into your cad software if it can handle it an make polygons, splines .... don't waste time and effort to make a smooth path,
> just use straight lines. a rough path or polygon will do the job. I used a grid of 56 point (the crater hill is 28 studs long - I
> divided the distance between studs and layers by 2 to get more detail). as a result you will get 9 to 10 layers.
> 5.. ultimately connect the single points.
> you see the whole process is simple but time-consuming. there are surely better and more efficient ways and for cad-wizards (like
> most of you probably are) with a proper software it won't take a month to get a rough shape, but ... this method is pretty precise
> and it works, at least it works for me.
>
> willy
Huh, this is a real photogrammetry project with aerial pictures,
orthophotos, digital elevation model, map processing etc. The next obvious
step in the future is to apply GPS technology to capture the Lego landscape :-).
Congratulations,
Ampi
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