Improve description of structure Simd::Rectangle - #1009
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Document Simd::Rectangle from real usage in views, drawing, motion, detection, contours and shift detection: the half-open range [left, right) x [top, bottom), rounding of floating sides to ptrdiff_t, and the difference between union, intersection, side addition and shift. Co-authored-by: igor.ermolaev <igor.ermolaev@altezza.org>
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September 23, 2026 10:06
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Summary
Documentation-only update of
Simd::Rectangle, written from how the type is used in views, drawing, motion, detection, contours and shift detection.[left, right) x [top, bottom)in image coordinates (origin at the top-left, X to the right, Y downward).Rectangle(view.Size())is the whole image. Floating sides converted toptrdiff_tround to the nearest integer, halves away from zero.operator |=is the bounding union (a point grows the box by one pixel).operator &=andIntersectionclip.operator +=,operator +,operator *andoperator /combine or scale the four sides.Shiftwrites a translation;Shiftedreturns one.cv::Rectstays(x, y, width, height)on conversion.docs/2026.htmlrecord the documentation change.Code changes are limited to comments in
src/Simd/SimdRectangle.hppand that release-note line. The rectangle implementation is unchanged.