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Post by indy on Sept 5, 2023 15:56:55 GMT -5
Last night, I found some professional 2D drawings of some IndyCars. I put several cars into 3D software to hopefully create something. However, when I lined up the 2D side views and top views of several cars, there were vast inconsistencies in how far where parts were placed (mirrors, roll bar, rad exits, flugelhorns, etc). For example, one car had the front tires narrower in top view as well as forward.
Instead of ranting, as this common issue I find in setting up 2D images to help make something 3D, I thought I would come to the group for any tips, tricks, words of experience, wisdom, etc.
Jordan
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Post by IndyCarModels on Sept 6, 2023 16:52:27 GMT -5
Sorry, but I'm no help.
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Post by pje on Sept 6, 2023 17:41:37 GMT -5
As an old AutoCad civil drafter I mainly worked in 2D, so each point just had a x an y value. In doing a contour map or something similar, each point would have a z value too. I’m wondering if the files that you’re using don’t have a z value assigned to each point.
I’m sure the 3D designers here can offer more help and I’ll be interested in what they have to suggest.
Paul Erlendson
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Post by indycals on Sept 6, 2023 18:58:04 GMT -5
I’m sure the 3D designers here can offer more help and I’ll be interested in what they have to suggest. Not this one unfortunately. The only 2d drawings I use for 3d design are the ones I draw myself. |
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Post by GrandPrecision on Sept 7, 2023 8:42:52 GMT -5
Have you tried overlaying the images in Photoshop, then adjusting positioning of parts of the drawing to correct the contradictions?
The difficult part may be reconciling which of the images is the most accurate relative to placement.
That all being said, I've never done anything from drawings, I'm typically working from photos for my various parts.
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Post by indycals on Sept 7, 2023 13:24:54 GMT -5
I've never done anything from drawings, I'm typically working from photos for my various parts. Same. The 2d drawings I referenced above are just the basic part shapes because It's easier for me to draw precisely in Illustrator than my 3d app. Then I just import them and extrude or rotate as needed. But I don't rely on drawings for my CAD drawings. |
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Post by elsapito on Dec 5, 2023 13:43:26 GMT -5
Anyway, is perhaps your problem is that you don´t know which of the two views is right? I mean that´s like "two men say they´re Jesus, one of them must be wrong" (Dire Straits). Obvipusly the idea is modifyng the wrong one.
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Post by krosnyak on Dec 6, 2023 22:31:58 GMT -5
![]()  Try to find official dimensions like overall length, width, height, track, axle to axle, etc. also find the exact dimensions of rims and/or tires. with that as a base, create a bounding box with some reference points, like axle places, then you can scale and stretch the 2d drawings around to fit as best as possible. thats what works for me, at least. Good luck! |
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Post by elsapito on Dec 14, 2023 4:13:59 GMT -5
Try to find official dimensions like overall length, width, height, track, axle to axle, etc. also find the exact dimensions of rims and/or tires. with that as a base, create a bounding box with some reference points, like axle places, then you can scale and stretch the 2d drawings around to fit as best as possible. thats what works for me, at least. Good luck! Exactly!!!  That´swhat I do with pictures. And it works! Generally you will only get one or two unknown measures from a single pic. At least with the drawing, where you can do the same, all dimensions will be in the same scale, but NEVER trust a drawing 100%. "People are known to get wrong!" as 3PO would say! |
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That´swhat I do with pictures. And it works! Generally you will only get one or two unknown measures from a single pic.