Bézier curves/Intersections: Difference between revisions
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(Assume the C definition of epsilon.) |
(→{{header|Scheme}}: Assume the C definition of epsilon.) |
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(define *absolute-tolerance* |
(define *absolute-tolerance* |
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(make-parameter (* |
(make-parameter (* 50 fl-epsilon) check-absolute-tolerance)) |
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(define (compare-lengths norm ax ay bx by) |
(define (compare-lengths norm ax ay bx by) |
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| Line 4,088: | Line 4,088: | ||
;; I do not know this test is any better, for THIS algorithm, |
;; I do not know this test is any better, for THIS algorithm, |
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;; than an exact equality test. But it is no worse. |
;; than an exact equality test. But it is no worse. |
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(<= (abs (- x y)) (* fl-epsilon (max (abs x) (abs y))))) |
(<= (abs (- x y)) (* 0.5 fl-epsilon (max (abs x) (abs y))))) |
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(define (include-params tp tq lst) |
(define (include-params tp tq lst) |
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