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The usual method used to print on darker fabrics is to use screen printing. The process usually involves printing a white underbase prior to overprinting in colour. The reason for this is because coloured inks are typically semi-transparent, so darker coloured fabrics would just show through the ink, making brighter colours just look too dark. An opaque ...


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Different programs have different strengths. Depending on what you're working with you may want to choose a specific program better suited for your task. I will go step by step and compare Adobe Illustrator, Vector Magic, Graphic Tracer and Inkscape. I may add Corel Draw later, but based on what I've seen, it isn't better than the other options in any aspect....


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You're right that three tangent lines don't uniquely determine an ellipse. Given the minor axis as well, though, we have enough information. The point of Scott Robertson's method is to assume that the ellipse in question corresponds to a circle, and that the object is close to the centre of vision. Under those assumptions, the minor axis will effectively lie ...


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