So - still next-to-nothing going on at work, in the absence of anything that NEEDS doing, I've spent some time teaching myself about surface generation on CATIA. What I ideally need is something that's while it's a complex shape, is actually made up of fairly simple shapes. It needs to be something with a shape that's familiar to me, so I can tell what looks right & what doesn't.
Hold on just a minute!
It had to be either the car or my Wife, so erring on the side of caution, I went for the car.
My good friend Chris Chapman drew up the Fury chassis many years ago from dimensions I'd supplied & as I've used bits of it to draw things up I've adapted & added to the chassis model, but apart from the rear valence & a small area of bonnet, I'd never tried to re-create the bodywork.
My first attempt used blocks & cylinders & at best looked "Fury-ish" actually bearing a closer resemblance to a Honda S800
I then moved on to the rear tub, this time using surfaces to create something that was pretty close to being Fury shaped. The technique is fairly simple, draw the cross-section at the front & the back, draw a couple of cross sections in between, join the cross sections up with curvy lines & the computer creates a surface that goes through all those lines. Of course the trick is to get all the lines in the right place & the "tension" on the surface right.
It actually went pretty well & after a day or so it was good enough to make the bonnet look stupid, so
only one thing to do, create a bonnet surface. This was a lot more complex as the wings have to sweep gracefully over the wheel arches & the valleys either side of the hump have to be "just so". It took me a couple of days & it's not by any means perfect, but it's pretty close. Then I went mad. I modelled up the side pods, the doors, the screen (properly) & screen arch, the engine, radiator & put some other engine parts I'd previously modelled onto the engine.
AND I did the wheels.
And I did the lights.
And the dash top.
And most importantly, I made it the right shade of yellow.
By now it was looking quite Fury-like, so I ran off a couple of pictures first with the bonnet transparent, then with all the bodywork see-trough. In the '50s & '60s this sort of thing took a skilled technical illustrator months to do, with CATIA, it was about ten button pushes including taking the pictures.
Having spun it around a lot & looked at it from every conceivable angle, I started playing with some of CATIAs other less technical functions, in perspective mode it's possible to zoom right through the bodywork & have a look round the engine bay.
It's also possible to do an exploded view without any explosives.
This is particularly good fun as there's a scroll bar that moves all the bits together & apart & the whole "formation" can still be zoomed & rotated. Again, several months work for an illustrator reduced to simply selecting a function & sliding a control.
So what's next? I ought to model up the steering wheel & shaft, to make it look complete. I may draw the suspension arms, but I'll need to measure those before I start, so that might not happen.
What I'd really like to do is some actual work, but we'll see..........
Hold on just a minute!
It had to be either the car or my Wife, so erring on the side of caution, I went for the car.
My good friend Chris Chapman drew up the Fury chassis many years ago from dimensions I'd supplied & as I've used bits of it to draw things up I've adapted & added to the chassis model, but apart from the rear valence & a small area of bonnet, I'd never tried to re-create the bodywork.
My first attempt used blocks & cylinders & at best looked "Fury-ish" actually bearing a closer resemblance to a Honda S800
I then moved on to the rear tub, this time using surfaces to create something that was pretty close to being Fury shaped. The technique is fairly simple, draw the cross-section at the front & the back, draw a couple of cross sections in between, join the cross sections up with curvy lines & the computer creates a surface that goes through all those lines. Of course the trick is to get all the lines in the right place & the "tension" on the surface right.
It actually went pretty well & after a day or so it was good enough to make the bonnet look stupid, so
only one thing to do, create a bonnet surface. This was a lot more complex as the wings have to sweep gracefully over the wheel arches & the valleys either side of the hump have to be "just so". It took me a couple of days & it's not by any means perfect, but it's pretty close. Then I went mad. I modelled up the side pods, the doors, the screen (properly) & screen arch, the engine, radiator & put some other engine parts I'd previously modelled onto the engine.
AND I did the wheels.
And I did the lights.
And the dash top.
And most importantly, I made it the right shade of yellow.
By now it was looking quite Fury-like, so I ran off a couple of pictures first with the bonnet transparent, then with all the bodywork see-trough. In the '50s & '60s this sort of thing took a skilled technical illustrator months to do, with CATIA, it was about ten button pushes including taking the pictures.

It's also possible to do an exploded view without any explosives.
This is particularly good fun as there's a scroll bar that moves all the bits together & apart & the whole "formation" can still be zoomed & rotated. Again, several months work for an illustrator reduced to simply selecting a function & sliding a control.
So what's next? I ought to model up the steering wheel & shaft, to make it look complete. I may draw the suspension arms, but I'll need to measure those before I start, so that might not happen.
What I'd really like to do is some actual work, but we'll see..........
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