Re: Determining car dimensions from photographs.


Charlie Vlk
 

There are also "proportional dividers" which can be set to automatically
convert a photo or drawing divider setting to a larger or smaller proportion
corresponding setting. Finding such old school equipment may be a
challenge.

But with computers I have found that it is easier to use scanned in photos
that can be adjusted (even some free drawing programs have perspective tools
that can flatten an image) to use as a base layer over which you can draw
in separate layers. Even if the photo is slightly in perspective you can
count on one vertical strip to project vertical dimensions. Truck centers
and other known horizontal dimensions can be used to landmark key elements.

Charlie Vlk

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